Adapt clean up for installed APK

The cleanup process is slightly different when the server is installed
rather than pushed.

app/meson.build

@@ -188,7 +188,7 @@ conf.set_quoted('SCRCPY_VERSION', meson.project_version())
 # the prefix used during configuration (meson --prefix=PREFIX)
 conf.set_quoted('PREFIX', get_option('prefix'))
 
-# build a "portable" version (with scrcpy-server accessible from the same
+# build a "portable" version (with scrcpy-server.apk accessible from the same
 # directory as the executable)
 conf.set('PORTABLE', get_option('portable'))
 

app/scrcpy.1

@@ -110,6 +110,10 @@ However, the option is only available when the HID keyboard is enabled (or a phy
 
 Also see \fB\-\-hid\-mouse\fR.
 
+.TP
+.B \-\-install
+Install the server (via "adb install") rather than pushing it to /data/local/tmp (via "adb push").
+
 .TP
 .B \-\-legacy\-paste
 Inject computer clipboard text as a sequence of key events on Ctrl+v (like MOD+Shift+v).
@@ -242,6 +246,10 @@ option if set, or by the file extension (.mp4 or .mkv).
 .BI "\-\-record\-format " format
 Force recording format (either mp4 or mkv).
 
+.TP
+.B \-\-reinstall
+Reinstall the server (via "adb install"), even if the correct version is already installed. Implies \fB\-\-install\fR.
+
 .TP
 .BI "\-\-render\-driver " name
 Request SDL to use the given render driver (this is just a hint).

app/src/adb/adb.c

@@ -329,6 +329,17 @@ sc_adb_install(struct sc_intr *intr, const char *serial, const char *local,
     return process_check_success_intr(intr, pid, "adb install", flags);
 }
 
+bool
+sc_adb_uninstall(struct sc_intr *intr, const char *serial, const char *pkg,
+                 unsigned flags) {
+    assert(serial);
+    const char *const argv[] =
+        SC_ADB_COMMAND("-s", serial, "uninstall", pkg);
+
+    sc_pid pid = sc_adb_execute(argv, flags);
+    return process_check_success_intr(intr, pid, "adb uninstall", flags);
+}
+
 bool
 sc_adb_tcpip(struct sc_intr *intr, const char *serial, uint16_t port,
              unsigned flags) {
@@ -435,6 +446,7 @@ sc_adb_list_devices(struct sc_intr *intr, unsigned flags,
              "Please report an issue.");
         return false;
     }
+#undef BUFSIZE
 
     // It is parsed as a NUL-terminated string
     buf[r] = '\0';
@@ -713,3 +725,99 @@ sc_adb_get_device_ip(struct sc_intr *intr, const char *serial, unsigned flags) {
 
     return sc_adb_parse_device_ip(buf);
 }
+
+char *
+sc_adb_get_installed_apk_path(struct sc_intr *intr, const char *serial,
+                              unsigned flags) {
+    assert(serial);
+    const char *const argv[] =
+        SC_ADB_COMMAND("-s", serial, "shell", "pm", "list", "package", "-f",
+                       SC_ANDROID_PACKAGE);
+
+    sc_pipe pout;
+    sc_pid pid = sc_adb_execute_p(argv, flags, &pout);
+    if (pid == SC_PROCESS_NONE) {
+        LOGD("Could not execute \"pm list packages\"");
+        return NULL;
+    }
+
+    // "pm list packages -f <package>" output should contain only one line, so
+    // the output should be short
+    char buf[1024];
+    ssize_t r = sc_pipe_read_all_intr(intr, pid, pout, buf, sizeof(buf) - 1);
+    sc_pipe_close(pout);
+
+    bool ok = process_check_success_intr(intr, pid, "pm list packages", flags);
+    if (!ok) {
+        return NULL;
+    }
+
+    if (r == -1) {
+        return NULL;
+    }
+
+    assert((size_t) r < sizeof(buf));
+    if (r == sizeof(buf) - 1)  {
+        // The implementation assumes that the output of "pm list packages"
+        // fits in the buffer in a single pass
+        LOGW("Result of \"pm list package\" does not fit in 1Kb. "
+             "Please report an issue.");
+        return NULL;
+    }
+
+    // It is parsed as a NUL-terminated string
+    buf[r] = '\0';
+
+    return sc_adb_parse_installed_apk_path(buf);
+}
+
+char *
+sc_adb_get_installed_apk_version(struct sc_intr *intr, const char *serial,
+                                 unsigned flags) {
+    assert(serial);
+    const char *const argv[] =
+        SC_ADB_COMMAND("-s", serial, "shell", "dumpsys", "package",
+                       SC_ANDROID_PACKAGE);
+
+    sc_pipe pout;
+    sc_pid pid = sc_adb_execute_p(argv, flags, &pout);
+    if (pid == SC_PROCESS_NONE) {
+        LOGD("Could not execute \"dumpsys package\"");
+        return NULL;
+    }
+
+    // "dumpsys package" output can be huge (e.g. 16k), but versionName is at
+    // the beginning, typically in the first 1024 bytes (64k should be enough
+    // for the whole output anyway)
+#define BUFSIZE 65536
+    char *buf = malloc(BUFSIZE);
+    if (!buf) {
+        return false;
+    }
+    ssize_t r = sc_pipe_read_all_intr(intr, pid, pout, buf, BUFSIZE - 1);
+    sc_pipe_close(pout);
+
+    bool ok = process_check_success_intr(intr, pid, "dumpsys package", flags);
+    if (!ok) {
+        free(buf);
+        return NULL;
+    }
+
+    if (r == -1) {
+        free(buf);
+        return NULL;
+    }
+
+    assert((size_t) r < BUFSIZE);
+#undef BUFSIZE
+    // if r == sizeof(buf), then the output is truncated, but we don't care,
+    // versionName is at the beginning in practice, and is unlikely to be
+    // truncated at 64k
+
+    // It is parsed as a NUL-terminated string
+    buf[r] = '\0';
+
+    char *version = sc_adb_parse_installed_apk_version(buf);
+    free(buf);
+    return version;
+}

app/src/adb/adb.h

@@ -15,6 +15,8 @@
 
 #define SC_ADB_SILENT (SC_ADB_NO_STDOUT | SC_ADB_NO_STDERR | SC_ADB_NO_LOGERR)
 
+#define SC_ANDROID_PACKAGE "com.genymobile.scrcpy"
+
 const char *
 sc_adb_get_executable(void);
 
@@ -64,6 +66,10 @@ bool
 sc_adb_install(struct sc_intr *intr, const char *serial, const char *local,
                unsigned flags);
 
+bool
+sc_adb_uninstall(struct sc_intr *intr, const char *serial, const char *pkg,
+                 unsigned flags);
+
 /**
  * Execute `adb tcpip <port>`
  */
@@ -114,4 +120,18 @@ sc_adb_getprop(struct sc_intr *intr, const char *serial, const char *prop,
 char *
 sc_adb_get_device_ip(struct sc_intr *intr, const char *serial, unsigned flags);
 
+/**
+ * Return the path of the installed APK for com.genymobile.scrcpy (if any)
+ */
+char *
+sc_adb_get_installed_apk_path(struct sc_intr *intr, const char *serial,
+                              unsigned flags);
+
+/**
+ * Return the version of the installed APK for com.genymobile.scrcpy (if any)
+ */
+char *
+sc_adb_get_installed_apk_version(struct sc_intr *intr, const char *serial,
+                                 unsigned flags);
+
 #endif

app/src/adb/adb_parser.c

@@ -225,3 +225,62 @@ sc_adb_parse_device_ip(char *str) {
 
     return NULL;
 }
+
+char *
+sc_adb_parse_installed_apk_path(char *str) {
+    // str is expected to look like:
+    // "package:/data/app/.../base.apk=com.genymobile.scrcpy"
+    //          ^^^^^^^^^^^^^^^^^^^^^^
+    // We want to extract the path (which may contain '=', even in practice)
+
+    if (strncmp(str, "package:", 8)) {
+        // Does not start with "package:"
+        return NULL;
+    }
+
+    char *s = str + 8;
+    size_t len = strcspn(s, " \r\n");
+    s[len] = '\0';
+
+    char *p = strrchr(s, '=');
+    if (!p) {
+        // No '=' found
+        return NULL;
+    }
+
+    // Truncate at the last '='
+    *p = '\0';
+
+    return strdup(s);
+}
+
+char *
+sc_adb_parse_installed_apk_version(const char *str) {
+    // str is the (beginning of the) output of `dumpsys package`
+    // We want to extract the version string from a line starting with 4 spaces
+    // then `versionName=` then the version string.
+
+#define VERSION_NAME_PREFIX "\n    versionName="
+    char *s = strstr(str, VERSION_NAME_PREFIX);
+    if (!s) {
+        // Not found
+        return NULL;
+    }
+
+    s+= sizeof(VERSION_NAME_PREFIX) - 1;
+
+    size_t len = strspn(s, "0123456789.");
+    if (!len) {
+        LOGW("Unexpected version name with no value");
+        return NULL;
+    }
+
+    char *version = malloc(len + 1);
+    if (!version) {
+        return NULL;
+    }
+
+    memcpy(version, s, len);
+    version[len] = '\0';
+    return version;
+}

app/src/adb/adb_parser.h

@@ -27,4 +27,24 @@ sc_adb_parse_devices(char *str, struct sc_vec_adb_devices *out_vec);
 char *
 sc_adb_parse_device_ip(char *str);
 
+/**
+ * Parse the package path from the output of
+ * `adb shell pm list packages -f <package>`
+ *
+ * The parameter must be a NUL-terminated string.
+ *
+ * Warning: this function modifies the buffer for optimization purposes.
+ */
+char *
+sc_adb_parse_installed_apk_path(char *str);
+
+/**
+ * Parse the package version from the output of
+ * `adb shell dumpsys package <package>`
+ *
+ * The parameter must be a NUL-terminated string.
+ */
+char *
+sc_adb_parse_installed_apk_version(const char *str);
+
 #endif

app/src/cli.c

@@ -57,6 +57,8 @@
 #define OPT_NO_CLEANUP             1037
 #define OPT_PRINT_FPS              1038
 #define OPT_NO_POWER_ON            1039
+#define OPT_INSTALL                1040
+#define OPT_REINSTALL              1041
 
 struct sc_option {
     char shortopt;
@@ -207,6 +209,12 @@ static const struct sc_option options[] = {
         .longopt = "help",
         .text = "Print this help.",
     },
+    {
+        .longopt_id = OPT_INSTALL,
+        .longopt = "install",
+        .text = "Install the server (via 'adb install') rather than pushing "
+                "it to /data/local/tmp (via 'adb push').",
+    },
     {
         .longopt_id = OPT_LEGACY_PASTE,
         .longopt = "legacy-paste",
@@ -378,6 +386,13 @@ static const struct sc_option options[] = {
         .argdesc = "format",
         .text = "Force recording format (either mp4 or mkv).",
     },
+    {
+        .longopt_id = OPT_REINSTALL,
+        .longopt = "reinstall",
+        .text = "Reinstall the server (via 'adb install'), even if the correct "
+                "version is already installed.\n"
+                "Implies --install.",
+    },
     {
         .longopt_id = OPT_RENDER_DRIVER,
         .longopt = "render-driver",
@@ -1610,6 +1625,13 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
             case OPT_PRINT_FPS:
                 opts->start_fps_counter = true;
                 break;
+            case OPT_INSTALL:
+                opts->install = true;
+                break;
+            case OPT_REINSTALL:
+                opts->install = true;
+                opts->reinstall = true;
+                break;
             case OPT_OTG:
 #ifdef HAVE_USB
                 opts->otg = true;

app/src/control_msg.c

@@ -37,7 +37,7 @@ static const char *const android_motionevent_action_labels[] = {
     "move",
     "cancel",
     "outside",
-    "ponter-down",
+    "pointer-down",
     "pointer-up",
     "hover-move",
     "scroll",

app/src/options.c

@@ -65,4 +65,6 @@ const struct scrcpy_options scrcpy_options_default = {
     .cleanup = true,
     .start_fps_counter = false,
     .power_on = true,
+    .install = false,
+    .reinstall = false,
 };

app/src/options.h

@@ -140,6 +140,8 @@ struct scrcpy_options {
     bool cleanup;
     bool start_fps_counter;
     bool power_on;
+    bool install;
+    bool reinstall;
 };
 
 extern const struct scrcpy_options scrcpy_options_default;

app/src/scrcpy.c

@@ -325,6 +325,8 @@ scrcpy(struct scrcpy_options *options) {
         .tcpip_dst = options->tcpip_dst,
         .cleanup = options->cleanup,
         .power_on = options->power_on,
+        .install = options->install,
+        .reinstall = options->reinstall,
     };
 
     static const struct sc_server_callbacks cbs = {

app/src/server.c

@@ -14,10 +14,11 @@
 #include "util/process_intr.h"
 #include "util/str.h"
 
-#define SC_SERVER_FILENAME "scrcpy-server"
+#define SC_SERVER_FILENAME "scrcpy-server.apk"
+#define SC_SERVER_PACKAGE "com.genymobile.scrcpy"
 
 #define SC_SERVER_PATH_DEFAULT PREFIX "/share/scrcpy/" SC_SERVER_FILENAME
-#define SC_DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"
+#define SC_DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.apk"
 
 static char *
 get_server_path(void) {
@@ -104,7 +105,10 @@ error:
 }
 
 static bool
-push_server(struct sc_intr *intr, const char *serial) {
+push_server(struct sc_intr *intr, const char *serial, bool install,
+            bool reinstall) {
+    assert(install || !reinstall); // reinstall implies install
+
     char *server_path = get_server_path();
     if (!server_path) {
         return false;
@@ -114,7 +118,28 @@ push_server(struct sc_intr *intr, const char *serial) {
         free(server_path);
         return false;
     }
-    bool ok = sc_adb_push(intr, serial, server_path, SC_DEVICE_SERVER_PATH, 0);
+    bool ok;
+
+    if (install) {
+        char *version = sc_adb_get_installed_apk_version(intr, serial, 0);
+        bool same_version = version && !strcmp(version, SCRCPY_VERSION);
+        free(version);
+        if (!reinstall && same_version) {
+            LOGI("Server " SCRCPY_VERSION " already installed");
+            ok = true;
+        } else {
+            LOGI("Installing server " SCRCPY_VERSION);
+            // If a server with a different signature is installed, or if a
+            // newer server is already installed, we must uninstall it first.
+            ok = sc_adb_uninstall(intr, serial, SC_SERVER_PACKAGE,
+                                  SC_ADB_SILENT);
+            (void) ok; // expected to fail if it is not installed
+            ok = sc_adb_install(intr, serial, server_path, 0);
+        }
+    } else {
+        ok = sc_adb_push(intr, serial, server_path, SC_DEVICE_SERVER_PATH, 0);
+    }
+
     free(server_path);
     return ok;
 }
@@ -152,6 +177,38 @@ sc_server_sleep(struct sc_server *server, sc_tick deadline) {
     return !stopped;
 }
 
+static char *
+get_classpath_cmd(struct sc_intr *intr, const char *serial, bool install) {
+    if (!install) {
+        // In push mode, the path is known statically
+        char *cp = strdup("CLASSPATH=" SC_DEVICE_SERVER_PATH);
+        if (!cp) {
+            LOG_OOM();
+        }
+        return cp;
+    }
+
+    char *apk_path = sc_adb_get_installed_apk_path(intr, serial, 0);
+    if (!apk_path) {
+        LOGE("Could not get device apk path");
+        return NULL;
+    }
+
+#define PREFIX_SIZE (sizeof("CLASSPATH=") - 1)
+    size_t len = strlen(apk_path);
+    char *cp = malloc(PREFIX_SIZE + len + 1);
+    if (!cp) {
+        LOG_OOM();
+        free(apk_path);
+        return NULL;
+    }
+
+    memcpy(cp, "CLASSPATH=", PREFIX_SIZE);
+    memcpy(cp + PREFIX_SIZE, apk_path, len + 1);
+    free(apk_path);
+    return cp;
+}
+
 static sc_pid
 execute_server(struct sc_server *server,
                const struct sc_server_params *params) {
@@ -160,13 +217,20 @@ execute_server(struct sc_server *server,
     const char *serial = server->serial;
     assert(serial);
 
+    char *classpath = get_classpath_cmd(&server->intr, serial, params->install);
+    if (!classpath) {
+        return SC_PROCESS_NONE;
+    }
+
+    LOGD("Using %s", classpath);
+
     const char *cmd[128];
     unsigned count = 0;
     cmd[count++] = sc_adb_get_executable();
     cmd[count++] = "-s";
     cmd[count++] = serial;
     cmd[count++] = "shell";
-    cmd[count++] = "CLASSPATH=" SC_DEVICE_SERVER_PATH;
+    cmd[count++] = classpath;
     cmd[count++] = "app_process";
 
 #ifdef SERVER_DEBUGGER
@@ -252,6 +316,10 @@ execute_server(struct sc_server *server,
         // By default, power_on is true
         ADD_PARAM("power_on=false");
     }
+    if (params->install) {
+        // By default, installed is false
+        ADD_PARAM("installed=true");
+    }
 
 #undef ADD_PARAM
 
@@ -272,6 +340,8 @@ execute_server(struct sc_server *server,
     pid = sc_adb_execute(cmd, 0);
 
 end:
+    free(classpath);
+
     for (unsigned i = dyn_idx; i < count; ++i) {
         free((char *) cmd[i]);
     }
@@ -755,8 +825,9 @@ run_server(void *data) {
     assert(serial);
     LOGD("Device serial: %s", serial);
 
-    ok = push_server(&server->intr, serial);
+    ok = push_server(&server->intr, serial, params->install, params->reinstall);
     if (!ok) {
+        LOGE("Failed to push server");
         goto error_connection_failed;
     }
 

app/src/server.h

@@ -48,6 +48,8 @@ struct sc_server_params {
     bool select_tcpip;
     bool cleanup;
     bool power_on;
+    bool install;
+    bool reinstall;
 };
 
 struct sc_server {

app/tests/test_adb_parser.c

@@ -241,6 +241,54 @@ static void test_get_ip_truncated(void) {
     assert(!ip);
 }
 
+static void test_apk_path(void) {
+    char str[] = "package:/data/app/~~71mguyc6p-kNjQdNaNkToA==/com.genymobile."
+                 "scrcpy-l6fiqqUSU7Ok7QLg-rIyJA==/base.apk=com.genymobile."
+                 "scrcpy\n";
+
+    const char *expected = "/data/app/~~71mguyc6p-kNjQdNaNkToA==/com.genymobile"
+                           ".scrcpy-l6fiqqUSU7Ok7QLg-rIyJA==/base.apk";
+    char *path = sc_adb_parse_installed_apk_path(str);
+    assert(!strcmp(path, expected));
+    free(path);
+}
+
+static void test_apk_path_invalid(void) {
+    // Does not start with "package:"
+    char str[] = "garbage:/data/app/~~71mguyc6p-kNjQdNaNkToA==/com.genymobile."
+                 "scrcpy-l6fiqqUSU7Ok7QLg-rIyJA==/base.apk=com.genymobile."
+                 "scrcpy\n";
+
+    char *path = sc_adb_parse_installed_apk_path(str);
+    assert(!path);
+}
+
+static void test_apk_version(void) {
+    char str[] =
+        "Key Set Manager:\n"
+        "  [com.genymobile.scrcpy]\n"
+        "      Signing KeySets: 128\n"
+        "\n"
+        "Packages:\n"
+        "  Package [com.genymobile.scrcpy] (89abcdef):\n"
+        "    userId=12345\n"
+        "    pkg=Package{012345 com.genymobile.scrcpy}\n"
+        "    codePath=/data/app/~~abcdef==/com.genymobile.scrcpy-012345==\n"
+        "    resourcePath=/data/app/~~abcdef==/com.genymobile.scrcpy-013245==\n"
+        "    primaryCpuAbi=null\n"
+        "    secondaryCpuAbi=null\n"
+        "    versionCode=12400 minSdk=21 targetSdk=31\n"
+        "    versionName=1.24\n"
+        "    splits=[base]\n"
+        "    apkSigningVersion=2\n"
+        "    applicationInfo=ApplicationInfo{012345 com.genymobile.scrcpy}\n";
+
+    const char *expected = "1.24";
+    char *version = sc_adb_parse_installed_apk_version(str);
+    assert(!strcmp(version, expected));
+    free(version);
+}
+
 int main(int argc, char *argv[]) {
     (void) argc;
     (void) argv;
@@ -263,5 +311,9 @@ int main(int argc, char *argv[]) {
     test_get_ip_no_wlan_without_eol();
     test_get_ip_truncated();
 
+    test_apk_path();
+    test_apk_path_invalid();
+    test_apk_version();
+
     return 0;
 }

run

@@ -21,5 +21,5 @@ then
 fi
 
 SCRCPY_ICON_PATH="app/data/icon.png" \
-SCRCPY_SERVER_PATH="$BUILDDIR/server/scrcpy-server" \
+SCRCPY_SERVER_PATH="$BUILDDIR/server/scrcpy-server.apk" \
 "$BUILDDIR/app/scrcpy" "$@"

server/.gitignore

@@ -6,3 +6,4 @@
 /build
 /captures
 .externalNativeBuild
+/keystore.properties

server/HOWTO_keystore.txt

@@ -0,0 +1,12 @@
+For an APK to be installable, it must be signed: <https://developer.android.com/training/articles/keystore>
+
+For that purpose, create a keystore by executing this command:
+
+    keytool -genkey -v -keystore ~/.android/scrcpy.keystore -keyalg RSA -keysize 2048 -validity 10000 -alias scrcpy -dname cn=scrcpy
+
+(Adapt ~/.android/scrcpy.keystore if you want to generate it to another location.)
+
+Then create server/keystore.properties and edit its properties:
+
+    cp keystore.properties.sample keystore.properties
+    vim keystore.properties  # fill the properties

server/build.gradle

@@ -10,10 +10,26 @@ android {
         versionName "1.24"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
+    signingConfigs {
+        release {
+            // to be defined in server/keystore.properties (see server/HOWTO_keystore.txt)
+            def keystorePropsFile = rootProject.file("server/keystore.properties")
+            if (keystorePropsFile.exists()) {
+                def props = new Properties()
+                props.load(new FileInputStream(keystorePropsFile))
+
+                storeFile rootProject.file(props['storeFile'])
+                storePassword props['storePassword']
+                keyAlias props['keyAlias']
+                keyPassword props['keyPassword']
+            }
+        }
+    }
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.release
         }
     }
 }

server/build_without_gradle.sh

@@ -14,14 +14,42 @@ set -e
 SCRCPY_DEBUG=false
 SCRCPY_VERSION_NAME=1.24
 
+SERVER_DIR="$(realpath $(dirname "$0"))"
+KEYSTORE_PROPERTIES_FILE="$SERVER_DIR/keystore.properties"
+
+if [[ ! -f "$KEYSTORE_PROPERTIES_FILE" ]]
+then
+    echo "The file '$KEYSTORE_PROPERTIES_FILE' does not exist." >&2
+    echo "Please read '$SERVER_DIR/HOWTO_keystore.txt'." >&2
+    exit 1
+fi
+
+declare -A props
+while IFS='=' read -r key value
+do
+    props["$key"]="$value"
+done < "$KEYSTORE_PROPERTIES_FILE"
+
+KEYSTORE_FILE=${props['storeFile']}
+KEYSTORE_PASSWORD=${props['storePassword']}
+KEYSTORE_KEY_ALIAS=${props['keyAlias']}
+KEYSTORE_KEY_PASSWORD=${props['keyPassword']}
+
+if [[ ! -f "$KEYSTORE_FILE" ]]
+then
+    echo "Keystore '$KEYSTORE_FILE' (read from '$KEYSTORE_PROPERTIES_FILE')" \
+         "does not exist." >&2
+    echo "Please read '$SERVER_DIR/HOWTO_keystore.txt'." >&2
+    exit 2
+fi
+
 PLATFORM=${ANDROID_PLATFORM:-33}
 BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-33.0.0}
 BUILD_TOOLS_DIR="$ANDROID_HOME/build-tools/$BUILD_TOOLS"
 
 BUILD_DIR="$(realpath ${BUILD_DIR:-build_manual})"
 CLASSES_DIR="$BUILD_DIR/classes"
-SERVER_DIR=$(dirname "$0")
-SERVER_BINARY=scrcpy-server
+SERVER_BINARY=scrcpy-server.apk
 ANDROID_JAR="$ANDROID_HOME/platforms/android-$PLATFORM/android.jar"
 
 echo "Platform: android-$PLATFORM"
@@ -64,11 +92,7 @@ then
         android/content/*.class \
         com/genymobile/scrcpy/*.class \
         com/genymobile/scrcpy/wrappers/*.class
-
-    echo "Archiving..."
     cd "$BUILD_DIR"
-    jar cvf "$SERVER_BINARY" classes.dex
-    rm -rf classes.dex classes
 else
     # use d8
     "$BUILD_TOOLS_DIR/d8" --classpath "$ANDROID_JAR" \
@@ -79,8 +103,24 @@ else
         com/genymobile/scrcpy/wrappers/*.class
 
     cd "$BUILD_DIR"
-    mv classes.zip "$SERVER_BINARY"
-    rm -rf classes
+    unzip -o classes.zip classes.dex  # we need the inner classes.dex
 fi
 
+echo "Packaging..."
+# note: if a res directory exists, add: -S "$SERVER_DIR/src/main/res"
+"$BUILD_TOOLS_DIR/aapt" package -f \
+    -M "$SERVER_DIR/src/main/AndroidManifest.xml" \
+    -I "$ANDROID_JAR" \
+    -F "$SERVER_BINARY.unaligned"
+"$BUILD_TOOLS_DIR/aapt" add "$SERVER_BINARY.unaligned" classes.dex
+"$BUILD_TOOLS_DIR/zipalign" -p 4 "$SERVER_BINARY.unaligned" "$SERVER_BINARY"
+rm "$SERVER_BINARY.unaligned"
+
+"$BUILD_TOOLS_DIR/apksigner" sign \
+    --ks "$KEYSTORE_FILE" \
+    --ks-pass "pass:$KEYSTORE_PASSWORD" \
+    --ks-key-alias "$KEYSTORE_KEY_ALIAS" \
+    --key-pass "pass:$KEYSTORE_KEY_PASSWORD" \
+    "$SERVER_BINARY"
+
 echo "Server generated in $BUILD_DIR/$SERVER_BINARY"

server/keystore.properties.sample

@@ -0,0 +1,4 @@
+storeFile=/path/to/your/keystore
+storePassword=PASSWORD
+keyAlias=scrcpy
+keyPassword=PASSWORD

server/meson.build

@@ -6,7 +6,7 @@ if prebuilt_server == ''
                   # gradle is responsible for tracking source changes
                   build_by_default: true,
                   build_always_stale: true,
-                  output: 'scrcpy-server',
+                  output: 'scrcpy-server.apk',
                   command: [find_program('./scripts/build-wrapper.sh'), meson.current_source_dir(), '@OUTPUT@', get_option('buildtype')],
                   console: true,
                   install: true,
@@ -18,7 +18,7 @@ else
     endif
     custom_target('scrcpy-server-prebuilt',
                   input: prebuilt_server,
-                  output: 'scrcpy-server',
+                  output: 'scrcpy-server.apk',
                   command: ['cp', '@INPUT@', '@OUTPUT@'],
                   install: true,
                   install_dir: 'share/scrcpy')

server/scripts/build-wrapper.sh

@@ -25,5 +25,5 @@ then
     cp "$PROJECT_ROOT/build/outputs/apk/debug/server-debug.apk" "$OUTPUT"
 else
     "$GRADLE" -p "$PROJECT_ROOT" assembleRelease
-    cp "$PROJECT_ROOT/build/outputs/apk/release/server-release-unsigned.apk" "$OUTPUT"
+    cp "$PROJECT_ROOT/build/outputs/apk/release/server-release.apk" "$OUTPUT"
 fi

server/src/main/java/com/genymobile/scrcpy/CleanUp.java

@@ -1,7 +1,5 @@
 package com.genymobile.scrcpy;
 
-import com.genymobile.scrcpy.wrappers.ServiceManager;
-
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Base64;
@@ -16,7 +14,7 @@ import java.io.IOException;
  */
 public final class CleanUp {
 
-    public static final String SERVER_PATH = "/data/local/tmp/scrcpy-server.jar";
+    public static final String SERVER_PATH = "/data/local/tmp/scrcpy-server.apk";
 
     // A simple struct to be passed from the main process to the cleanup process
     public static class Config implements Parcelable {
@@ -37,6 +35,8 @@ public final class CleanUp {
         private static final int FLAG_RESTORE_NORMAL_POWER_MODE = 2;
         private static final int FLAG_POWER_OFF_SCREEN = 4;
 
+        private boolean installed;
+
         private int displayId;
 
         // Restore the value (between 0 and 7), -1 to not restore
@@ -52,6 +52,7 @@ public final class CleanUp {
         }
 
         protected Config(Parcel in) {
+            installed = in.readInt() != 0;
             displayId = in.readInt();
             restoreStayOn = in.readInt();
             byte options = in.readByte();
@@ -62,6 +63,7 @@ public final class CleanUp {
 
         @Override
         public void writeToParcel(Parcel dest, int flags) {
+            dest.writeInt(installed ? 1 : 0);
             dest.writeInt(displayId);
             dest.writeInt(restoreStayOn);
             byte options = 0;
@@ -116,9 +118,10 @@ public final class CleanUp {
         // not instantiable
     }
 
-    public static void configure(int displayId, int restoreStayOn, boolean disableShowTouches, boolean restoreNormalPowerMode, boolean powerOffScreen)
-            throws IOException {
+    public static void configure(boolean installed, int displayId, int restoreStayOn, boolean disableShowTouches, boolean restoreNormalPowerMode,
+            boolean powerOffScreen) throws IOException {
         Config config = new Config();
+        config.installed = installed;
         config.displayId = displayId;
         config.disableShowTouches = disableShowTouches;
         config.restoreStayOn = restoreStayOn;
@@ -127,8 +130,9 @@ public final class CleanUp {
 
         if (config.hasWork()) {
             startProcess(config);
-        } else {
-            // There is no additional clean up to do when scrcpy dies
+        } else if (!installed) {
+            // There is no additional clean up to do when scrcpy dies.
+            // If the APK has been pushed to /data/local/tmp, remove it.
             unlinkSelf();
         }
     }
@@ -137,7 +141,8 @@ public final class CleanUp {
         String[] cmd = {"app_process", "/", CleanUp.class.getName(), config.toBase64()};
 
         ProcessBuilder builder = new ProcessBuilder(cmd);
-        builder.environment().put("CLASSPATH", SERVER_PATH);
+        String serverPath = config.installed ? Device.getInstalledApkPath() : SERVER_PATH;
+        builder.environment().put("CLASSPATH", serverPath);
         builder.start();
     }
 
@@ -150,7 +155,12 @@ public final class CleanUp {
     }
 
     public static void main(String... args) {
-        unlinkSelf();
+        Config config = Config.fromBase64(args[0]);
+
+        if (!config.installed) {
+            // If the APK has been pushed to /data/local/tmp, remove it.
+            unlinkSelf();
+        }
 
         try {
             // Wait for the server to die
@@ -161,15 +171,11 @@ public final class CleanUp {
 
         Ln.i("Cleaning up");
 
-        Config config = Config.fromBase64(args[0]);
-
         if (config.disableShowTouches || config.restoreStayOn != -1) {
-            ServiceManager serviceManager = new ServiceManager();
-            Settings settings = new Settings(serviceManager);
             if (config.disableShowTouches) {
                 Ln.i("Disabling \"show touches\"");
                 try {
-                    settings.putValue(Settings.TABLE_SYSTEM, "show_touches", "0");
+                    Settings.putValue(Settings.TABLE_SYSTEM, "show_touches", "0");
                 } catch (SettingsException e) {
                     Ln.e("Could not restore \"show_touches\"", e);
                 }
@@ -177,7 +183,7 @@ public final class CleanUp {
             if (config.restoreStayOn != -1) {
                 Ln.i("Restoring \"stay awake\"");
                 try {
-                    settings.putValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(config.restoreStayOn));
+                    Settings.putValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(config.restoreStayOn));
                 } catch (SettingsException e) {
                     Ln.e("Could not restore \"stay_on_while_plugged_in\"", e);
                 }

server/src/main/java/com/genymobile/scrcpy/Command.java

@@ -30,4 +30,14 @@ public final class Command {
         }
         return result;
     }
+
+    public static String execReadOutput(String... cmd) throws IOException, InterruptedException {
+        Process process = Runtime.getRuntime().exec(cmd);
+        String output = IO.toString(process.getInputStream());
+        int exitCode = process.waitFor();
+        if (exitCode != 0) {
+            throw new IOException("Command " + Arrays.toString(cmd) + " returned with value " + exitCode);
+        }
+        return output;
+    }
 }

server/src/main/java/com/genymobile/scrcpy/Device.java

@@ -7,6 +7,7 @@ import com.genymobile.scrcpy.wrappers.SurfaceControl;
 import com.genymobile.scrcpy.wrappers.WindowManager;
 
 import android.content.IOnPrimaryClipChangedListener;
+import android.content.pm.ApplicationInfo;
 import android.graphics.Rect;
 import android.os.Build;
 import android.os.IBinder;
@@ -21,6 +22,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
 
 public final class Device {
 
+    private static final String SCRCPY_PACKAGE_NAME = "com.genymobile.scrcpy";
+
     public static final int POWER_MODE_OFF = SurfaceControl.POWER_MODE_OFF;
     public static final int POWER_MODE_NORMAL = SurfaceControl.POWER_MODE_NORMAL;
 
@@ -31,9 +34,6 @@ public final class Device {
     public static final int LOCK_VIDEO_ORIENTATION_UNLOCKED = -1;
     public static final int LOCK_VIDEO_ORIENTATION_INITIAL = -2;
 
-    private static final ServiceManager SERVICE_MANAGER = new ServiceManager();
-    private static final Settings SETTINGS = new Settings(SERVICE_MANAGER);
-
     public interface RotationListener {
         void onRotationChanged(int rotation);
     }
@@ -66,9 +66,9 @@ public final class Device {
 
     public Device(Options options) {
         displayId = options.getDisplayId();
-        DisplayInfo displayInfo = SERVICE_MANAGER.getDisplayManager().getDisplayInfo(displayId);
+        DisplayInfo displayInfo = ServiceManager.getDisplayManager().getDisplayInfo(displayId);
         if (displayInfo == null) {
-            int[] displayIds = SERVICE_MANAGER.getDisplayManager().getDisplayIds();
+            int[] displayIds = ServiceManager.getDisplayManager().getDisplayIds();
             throw new InvalidDisplayIdException(displayId, displayIds);
         }
 
@@ -82,7 +82,7 @@ public final class Device {
         screenInfo = ScreenInfo.computeScreenInfo(displayInfo.getRotation(), deviceSize, crop, maxSize, lockVideoOrientation);
         layerStack = displayInfo.getLayerStack();
 
-        SERVICE_MANAGER.getWindowManager().registerRotationWatcher(new IRotationWatcher.Stub() {
+        ServiceManager.getWindowManager().registerRotationWatcher(new IRotationWatcher.Stub() {
             @Override
             public void onRotationChanged(int rotation) {
                 synchronized (Device.this) {
@@ -98,7 +98,7 @@ public final class Device {
 
         if (options.getControl() && options.getClipboardAutosync()) {
             // If control and autosync are enabled, synchronize Android clipboard to the computer automatically
-            ClipboardManager clipboardManager = SERVICE_MANAGER.getClipboardManager();
+            ClipboardManager clipboardManager = ServiceManager.getClipboardManager();
             if (clipboardManager != null) {
                 clipboardManager.addPrimaryClipChangedListener(new IOnPrimaryClipChangedListener.Stub() {
                     @Override
@@ -192,7 +192,7 @@ public final class Device {
             return false;
         }
 
-        return SERVICE_MANAGER.getInputManager().injectInputEvent(inputEvent, injectMode);
+        return ServiceManager.getInputManager().injectInputEvent(inputEvent, injectMode);
     }
 
     public boolean injectEvent(InputEvent event, int injectMode) {
@@ -220,7 +220,7 @@ public final class Device {
     }
 
     public static boolean isScreenOn() {
-        return SERVICE_MANAGER.getPowerManager().isScreenOn();
+        return ServiceManager.getPowerManager().isScreenOn();
     }
 
     public synchronized void setRotationListener(RotationListener rotationListener) {
@@ -232,19 +232,19 @@ public final class Device {
     }
 
     public static void expandNotificationPanel() {
-        SERVICE_MANAGER.getStatusBarManager().expandNotificationsPanel();
+        ServiceManager.getStatusBarManager().expandNotificationsPanel();
     }
 
     public static void expandSettingsPanel() {
-        SERVICE_MANAGER.getStatusBarManager().expandSettingsPanel();
+        ServiceManager.getStatusBarManager().expandSettingsPanel();
     }
 
     public static void collapsePanels() {
-        SERVICE_MANAGER.getStatusBarManager().collapsePanels();
+        ServiceManager.getStatusBarManager().collapsePanels();
     }
 
     public static String getClipboardText() {
-        ClipboardManager clipboardManager = SERVICE_MANAGER.getClipboardManager();
+        ClipboardManager clipboardManager = ServiceManager.getClipboardManager();
         if (clipboardManager == null) {
             return null;
         }
@@ -256,7 +256,7 @@ public final class Device {
     }
 
     public boolean setClipboardText(String text) {
-        ClipboardManager clipboardManager = SERVICE_MANAGER.getClipboardManager();
+        ClipboardManager clipboardManager = ServiceManager.getClipboardManager();
         if (clipboardManager == null) {
             return false;
         }
@@ -299,7 +299,7 @@ public final class Device {
      * Disable auto-rotation (if enabled), set the screen rotation and re-enable auto-rotation (if it was enabled).
      */
     public static void rotateDevice() {
-        WindowManager wm = SERVICE_MANAGER.getWindowManager();
+        WindowManager wm = ServiceManager.getWindowManager();
 
         boolean accelerometerRotation = !wm.isRotationFrozen();
 
@@ -316,7 +316,11 @@ public final class Device {
         }
     }
 
-    public static Settings getSettings() {
-        return SETTINGS;
+    public static String getInstalledApkPath() {
+        ApplicationInfo info = ServiceManager.getPackageManager().getApplicationInfo(SCRCPY_PACKAGE_NAME);
+        if (info == null) {
+            return null;
+        }
+        return info.sourceDir;
     }
 }

server/src/main/java/com/genymobile/scrcpy/IO.java

@@ -6,7 +6,9 @@ import android.system.OsConstants;
 
 import java.io.FileDescriptor;
 import java.io.IOException;
+import java.io.InputStream;
 import java.nio.ByteBuffer;
+import java.util.Scanner;
 
 public final class IO {
     private IO() {
@@ -37,4 +39,13 @@ public final class IO {
     public static void writeFully(FileDescriptor fd, byte[] buffer, int offset, int len) throws IOException {
         writeFully(fd, ByteBuffer.wrap(buffer, offset, len));
     }
+
+    public static String toString(InputStream inputStream) {
+        StringBuilder builder = new StringBuilder();
+        Scanner scanner = new Scanner(inputStream);
+        while (scanner.hasNextLine()) {
+            builder.append(scanner.nextLine()).append('\n');
+        }
+        return builder.toString();
+    }
 }

server/src/main/java/com/genymobile/scrcpy/Options.java

@@ -23,6 +23,7 @@ public class Options {
     private boolean downsizeOnError = true;
     private boolean cleanup = true;
     private boolean powerOn = true;
+    private boolean installed = false;
 
     // Options not used by the scrcpy client, but useful to use scrcpy-server directly
     private boolean sendDeviceMeta = true; // send device name and size
@@ -196,4 +197,12 @@ public class Options {
     public void setSendDummyByte(boolean sendDummyByte) {
         this.sendDummyByte = sendDummyByte;
     }
+
+    public boolean getInstalled() {
+        return installed;
+    }
+
+    public void setInstalled(boolean installed) {
+        this.installed = installed;
+    }
 }

server/src/main/java/com/genymobile/scrcpy/Server.java

@@ -20,10 +20,9 @@ public final class Server {
         int restoreStayOn = -1;
         boolean restoreNormalPowerMode = options.getControl(); // only restore power mode if control is enabled
         if (options.getShowTouches() || options.getStayAwake()) {
-            Settings settings = Device.getSettings();
             if (options.getShowTouches()) {
                 try {
-                    String oldValue = settings.getAndPutValue(Settings.TABLE_SYSTEM, "show_touches", "1");
+                    String oldValue = Settings.getAndPutValue(Settings.TABLE_SYSTEM, "show_touches", "1");
                     // If "show touches" was disabled, it must be disabled back on clean up
                     mustDisableShowTouchesOnCleanUp = !"1".equals(oldValue);
                 } catch (SettingsException e) {
@@ -34,7 +33,7 @@ public final class Server {
             if (options.getStayAwake()) {
                 int stayOn = BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB | BatteryManager.BATTERY_PLUGGED_WIRELESS;
                 try {
-                    String oldValue = settings.getAndPutValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(stayOn));
+                    String oldValue = Settings.getAndPutValue(Settings.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(stayOn));
                     try {
                         restoreStayOn = Integer.parseInt(oldValue);
                         if (restoreStayOn == stayOn) {
@@ -52,8 +51,8 @@ public final class Server {
 
         if (options.getCleanup()) {
             try {
-                CleanUp.configure(options.getDisplayId(), restoreStayOn, mustDisableShowTouchesOnCleanUp, restoreNormalPowerMode,
-                        options.getPowerOffScreenOnClose());
+                CleanUp.configure(options.getInstalled(), options.getDisplayId(), restoreStayOn, mustDisableShowTouchesOnCleanUp,
+                        restoreNormalPowerMode, options.getPowerOffScreenOnClose());
             } catch (IOException e) {
                 Ln.e("Could not configure cleanup", e);
             }
@@ -252,6 +251,10 @@ public final class Server {
                     boolean powerOn = Boolean.parseBoolean(value);
                     options.setPowerOn(powerOn);
                     break;
+                case "installed":
+                    boolean installed = Boolean.parseBoolean(value);
+                    options.setInstalled(installed);
+                    break;
                 case "send_device_meta":
                     boolean sendDeviceMeta = Boolean.parseBoolean(value);
                     options.setSendDeviceMeta(sendDeviceMeta);

server/src/main/java/com/genymobile/scrcpy/Settings.java

@@ -7,16 +7,14 @@ import android.os.Build;
 
 import java.io.IOException;
 
-public class Settings {
+public final class Settings {
 
     public static final String TABLE_SYSTEM = ContentProvider.TABLE_SYSTEM;
     public static final String TABLE_SECURE = ContentProvider.TABLE_SECURE;
     public static final String TABLE_GLOBAL = ContentProvider.TABLE_GLOBAL;
 
-    private final ServiceManager serviceManager;
-
-    public Settings(ServiceManager serviceManager) {
-        this.serviceManager = serviceManager;
+    private Settings() {
+        /* not instantiable */
     }
 
     private static void execSettingsPut(String table, String key, String value) throws SettingsException {
@@ -35,10 +33,10 @@ public class Settings {
         }
     }
 
-    public String getValue(String table, String key) throws SettingsException {
+    public static String getValue(String table, String key) throws SettingsException {
         if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
             // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
+            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
                 return provider.getValue(table, key);
             } catch (SettingsException e) {
                 Ln.w("Could not get settings value via ContentProvider, fallback to settings process", e);
@@ -48,10 +46,10 @@ public class Settings {
         return execSettingsGet(table, key);
     }
 
-    public void putValue(String table, String key, String value) throws SettingsException {
+    public static void putValue(String table, String key, String value) throws SettingsException {
         if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
             // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
+            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
                 provider.putValue(table, key, value);
             } catch (SettingsException e) {
                 Ln.w("Could not put settings value via ContentProvider, fallback to settings process", e);
@@ -61,10 +59,10 @@ public class Settings {
         execSettingsPut(table, key, value);
     }
 
-    public String getAndPutValue(String table, String key, String value) throws SettingsException {
+    public static String getAndPutValue(String table, String key, String value) throws SettingsException {
         if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
             // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = serviceManager.getActivityManager().createSettingsProvider()) {
+            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
                 String oldValue = provider.getValue(table, key);
                 if (!value.equals(oldValue)) {
                     provider.putValue(table, key, value);

server/src/main/java/com/genymobile/scrcpy/wrappers/DisplayManager.java

@@ -1,8 +1,16 @@
 package com.genymobile.scrcpy.wrappers;
 
+import com.genymobile.scrcpy.Command;
 import com.genymobile.scrcpy.DisplayInfo;
+import com.genymobile.scrcpy.Ln;
 import com.genymobile.scrcpy.Size;
 
+import android.view.Display;
+
+import java.lang.reflect.Field;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 public final class DisplayManager {
     private final Object manager; // instance of hidden class android.hardware.display.DisplayManagerGlobal
 
@@ -10,11 +18,61 @@ public final class DisplayManager {
         this.manager = manager;
     }
 
+    // public to call it from unit tests
+    public static DisplayInfo parseDisplayInfo(String dumpsysDisplayOutput, int displayId) {
+        Pattern regex = Pattern.compile(
+                "^    mOverrideDisplayInfo=DisplayInfo\\{\".*?\", displayId " + displayId + ".*?(, FLAG_.*)?, real ([0-9]+) x ([0-9]+).*?, "
+                        + "rotation ([0-9]+).*?, layerStack ([0-9]+)",
+                Pattern.MULTILINE);
+        Matcher m = regex.matcher(dumpsysDisplayOutput);
+        if (!m.find()) {
+            return null;
+        }
+        int flags = parseDisplayFlags(m.group(1));
+        int width = Integer.parseInt(m.group(2));
+        int height = Integer.parseInt(m.group(3));
+        int rotation = Integer.parseInt(m.group(4));
+        int layerStack = Integer.parseInt(m.group(5));
+
+        return new DisplayInfo(displayId, new Size(width, height), rotation, layerStack, flags);
+    }
+
+    private static DisplayInfo getDisplayInfoFromDumpsysDisplay(int displayId) {
+        try {
+            String dumpsysDisplayOutput = Command.execReadOutput("dumpsys", "display");
+            return parseDisplayInfo(dumpsysDisplayOutput, displayId);
+        } catch (Exception e) {
+            Ln.e("Could not get display info from \"dumpsys display\" output", e);
+            return null;
+        }
+    }
+
+    private static int parseDisplayFlags(String text) {
+        Pattern regex = Pattern.compile("FLAG_[A-Z_]+");
+        if (text == null) {
+            return 0;
+        }
+
+        int flags = 0;
+        Matcher m = regex.matcher(text);
+        while (m.find()) {
+            String flagString = m.group();
+            try {
+                Field filed = Display.class.getDeclaredField(flagString);
+                flags |= filed.getInt(null);
+            } catch (NoSuchFieldException | IllegalAccessException e) {
+                // Silently ignore, some flags reported by "dumpsys display" are @TestApi
+            }
+        }
+        return flags;
+    }
+
     public DisplayInfo getDisplayInfo(int displayId) {
         try {
             Object displayInfo = manager.getClass().getMethod("getDisplayInfo", int.class).invoke(manager, displayId);
             if (displayInfo == null) {
-                return null;
+                // fallback when displayInfo is null
+                return getDisplayInfoFromDumpsysDisplay(displayId);
             }
             Class<?> cls = displayInfo.getClass();
             // width and height already take the rotation into account

server/src/main/java/com/genymobile/scrcpy/wrappers/PackageManager.java

@@ -0,0 +1,36 @@
+package com.genymobile.scrcpy.wrappers;
+
+import com.genymobile.scrcpy.Ln;
+
+import android.content.pm.ApplicationInfo;
+import android.os.IInterface;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class PackageManager {
+
+    private IInterface manager;
+    private Method getApplicationInfoMethod;
+
+    public PackageManager(IInterface manager) {
+        this.manager = manager;
+    }
+
+    private Method getGetApplicationInfoMethod() throws NoSuchMethodException {
+        if (getApplicationInfoMethod == null) {
+            getApplicationInfoMethod = manager.getClass().getDeclaredMethod("getApplicationInfo", String.class, int.class, int.class);
+        }
+        return getApplicationInfoMethod;
+    }
+
+    public ApplicationInfo getApplicationInfo(String packageName) {
+        try {
+            Method method = getGetApplicationInfoMethod();
+            return (ApplicationInfo) method.invoke(manager, packageName, 0, ServiceManager.USER_ID);
+        } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
+            Ln.e("Cannot get application info", e);
+            return null;
+        }
+    }
+}

server/src/main/java/com/genymobile/scrcpy/wrappers/ServiceManager.java

@@ -13,27 +13,31 @@ public final class ServiceManager {
     public static final String PACKAGE_NAME = "com.android.shell";
     public static final int USER_ID = 0;
 
-    private final Method getServiceMethod;
-
-    private WindowManager windowManager;
-    private DisplayManager displayManager;
-    private InputManager inputManager;
-    private PowerManager powerManager;
-    private StatusBarManager statusBarManager;
-    private ClipboardManager clipboardManager;
-    private ActivityManager activityManager;
-
-    public ServiceManager() {
+    private static final Method GET_SERVICE_METHOD;
+    static {
         try {
-            getServiceMethod = Class.forName("android.os.ServiceManager").getDeclaredMethod("getService", String.class);
+            GET_SERVICE_METHOD = Class.forName("android.os.ServiceManager").getDeclaredMethod("getService", String.class);
         } catch (Exception e) {
             throw new AssertionError(e);
         }
     }
 
-    private IInterface getService(String service, String type) {
+    private static WindowManager windowManager;
+    private static DisplayManager displayManager;
+    private static InputManager inputManager;
+    private static PowerManager powerManager;
+    private static StatusBarManager statusBarManager;
+    private static ClipboardManager clipboardManager;
+    private static ActivityManager activityManager;
+    private static PackageManager packageManager;
+
+    private ServiceManager() {
+        /* not instantiable */
+    }
+
+    private static IInterface getService(String service, String type) {
         try {
-            IBinder binder = (IBinder) getServiceMethod.invoke(null, service);
+            IBinder binder = (IBinder) GET_SERVICE_METHOD.invoke(null, service);
             Method asInterfaceMethod = Class.forName(type + "$Stub").getMethod("asInterface", IBinder.class);
             return (IInterface) asInterfaceMethod.invoke(null, binder);
         } catch (Exception e) {
@@ -41,14 +45,14 @@ public final class ServiceManager {
         }
     }
 
-    public WindowManager getWindowManager() {
+    public static WindowManager getWindowManager() {
         if (windowManager == null) {
             windowManager = new WindowManager(getService("window", "android.view.IWindowManager"));
         }
         return windowManager;
     }
 
-    public DisplayManager getDisplayManager() {
+    public static DisplayManager getDisplayManager() {
         if (displayManager == null) {
             try {
                 Class<?> clazz = Class.forName("android.hardware.display.DisplayManagerGlobal");
@@ -62,7 +66,7 @@ public final class ServiceManager {
         return displayManager;
     }
 
-    public InputManager getInputManager() {
+    public static InputManager getInputManager() {
         if (inputManager == null) {
             try {
                 Method getInstanceMethod = android.hardware.input.InputManager.class.getDeclaredMethod("getInstance");
@@ -75,21 +79,21 @@ public final class ServiceManager {
         return inputManager;
     }
 
-    public PowerManager getPowerManager() {
+    public static PowerManager getPowerManager() {
         if (powerManager == null) {
             powerManager = new PowerManager(getService("power", "android.os.IPowerManager"));
         }
         return powerManager;
     }
 
-    public StatusBarManager getStatusBarManager() {
+    public static StatusBarManager getStatusBarManager() {
         if (statusBarManager == null) {
             statusBarManager = new StatusBarManager(getService("statusbar", "com.android.internal.statusbar.IStatusBarService"));
         }
         return statusBarManager;
     }
 
-    public ClipboardManager getClipboardManager() {
+    public static ClipboardManager getClipboardManager() {
         if (clipboardManager == null) {
             IInterface clipboard = getService("clipboard", "android.content.IClipboard");
             if (clipboard == null) {
@@ -103,7 +107,7 @@ public final class ServiceManager {
         return clipboardManager;
     }
 
-    public ActivityManager getActivityManager() {
+    public static ActivityManager getActivityManager() {
         if (activityManager == null) {
             try {
                 // On old Android versions, the ActivityManager is not exposed via AIDL,
@@ -119,4 +123,20 @@ public final class ServiceManager {
 
         return activityManager;
     }
+
+    public static PackageManager getPackageManager() {
+        if (packageManager == null) {
+            try {
+                //IInterface manager = getService("package", "android.content.pm.IPackageManager");
+                Class<?> activityThreadClass = Class.forName("android.app.ActivityThread");
+                Method getPackageManager = activityThreadClass.getDeclaredMethod("getPackageManager");
+                IInterface manager = (IInterface) getPackageManager.invoke(null);
+                return new PackageManager(manager);
+            } catch (Exception e) {
+                throw new AssertionError(e);
+            }
+        }
+
+        return packageManager;
+    }
 }

server/src/test/java/com/genymobile/scrcpy/CommandParserTest.java

@@ -0,0 +1,186 @@
+package com.genymobile.scrcpy;
+
+import com.genymobile.scrcpy.wrappers.DisplayManager;
+
+import android.view.Display;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class CommandParserTest {
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplay() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=1\n"
+                + "  Display 0:\n"
+                + "mDisplayId=0\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mDesiredDisplayModeSpecs={baseModeId=2 primaryRefreshRateRange=[90 90] appRequestRefreshRateRange=[90 90]}\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, "
+                + "real 1440 x 3120, largest app 1440 x 3120, smallest app 1440 x 3120, appVsyncOff 2000000, presDeadline 11111111, mode 2, "
+                + "defaultMode 1, modes [{id=1, width=1440, height=3120, fps=60.0}, {id=2, width=1440, height=3120, fps=90.0}, {id=3, width=1080, "
+                + "height=2340, fps=90.0}, {id=4, width=1080, height=2340, fps=60.0}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], "
+                + "mMaxLuminance=540.0, mMaxAverageLuminance=270.1, mMinLuminance=0.2}, minimalPostProcessingSupported false, rotation 0, state OFF, "
+                + "type INTERNAL, uniqueId \"local:0\", app 1440 x 3120, density 600 (515.154 x 514.597) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0, 7, 9], address {port=129, model=0}, deviceProductInfo DeviceProductInfo{name=, manufacturerPnpId=QCM, "
+                + "productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, relativeAddress=null}, removeMode 0}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, "
+                + "FLAG_TRUSTED, real 1440 x 3120, largest app 3120 x 2983, smallest app 1440 x 1303, appVsyncOff 2000000, presDeadline 11111111, "
+                + "mode 2, defaultMode 1, modes [{id=1, width=1440, height=3120, fps=60.0}, {id=2, width=1440, height=3120, fps=90.0}, {id=3, "
+                + "width=1080, height=2340, fps=90.0}, {id=4, width=1080, height=2340, fps=60.0}], hdrCapabilities "
+                + "HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], mMaxLuminance=540.0, mMaxAverageLuminance=270.1, mMinLuminance=0.2}, "
+                + "minimalPostProcessingSupported false, rotation 0, state ON, type INTERNAL, uniqueId \"local:0\", app 1440 x 3120, density 600 "
+                + "(515.154 x 514.597) dpi, layerStack 0, colorMode 0, supportedColorModes [0, 7, 9], address {port=129, model=0}, deviceProductInfo "
+                + "DeviceProductInfo{name=, manufacturerPnpId=QCM, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, "
+                + "relativeAddress=null}, removeMode 0}\n"
+                + "    mRequestedMinimalPostProcessing=false\n";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 0);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(0, displayInfo.getDisplayId());
+        Assert.assertEquals(0, displayInfo.getRotation());
+        Assert.assertEquals(0, displayInfo.getLayerStack());
+        // FLAG_TRUSTED does not exist in Display (@TestApi), so it won't be reported
+        Assert.assertEquals(Display.FLAG_SECURE | Display.FLAG_SUPPORTS_PROTECTED_BUFFERS, displayInfo.getFlags());
+        Assert.assertEquals(1440, displayInfo.getSize().getWidth());
+        Assert.assertEquals(3120, displayInfo.getSize().getHeight());
+    }
+
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplayWithRotation() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=1\n"
+                + "  Display 0:\n"
+                + "mDisplayId=0\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mDesiredDisplayModeSpecs={baseModeId=2 primaryRefreshRateRange=[90 90] appRequestRefreshRateRange=[90 90]}\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, "
+                + "real 1440 x 3120, largest app 1440 x 3120, smallest app 1440 x 3120, appVsyncOff 2000000, presDeadline 11111111, mode 2, "
+                + "defaultMode 1, modes [{id=1, width=1440, height=3120, fps=60.0}, {id=2, width=1440, height=3120, fps=90.0}, {id=3, width=1080, "
+                + "height=2340, fps=90.0}, {id=4, width=1080, height=2340, fps=60.0}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], "
+                + "mMaxLuminance=540.0, mMaxAverageLuminance=270.1, mMinLuminance=0.2}, minimalPostProcessingSupported false, rotation 0, state ON, "
+                + "type INTERNAL, uniqueId \"local:0\", app 1440 x 3120, density 600 (515.154 x 514.597) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0, 7, 9], address {port=129, model=0}, deviceProductInfo DeviceProductInfo{name=, manufacturerPnpId=QCM, "
+                + "productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, relativeAddress=null}, removeMode 0}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, "
+                + "FLAG_TRUSTED, real 3120 x 1440, largest app 3120 x 2983, smallest app 1440 x 1303, appVsyncOff 2000000, presDeadline 11111111, "
+                + "mode 2, defaultMode 1, modes [{id=1, width=1440, height=3120, fps=60.0}, {id=2, width=1440, height=3120, fps=90.0}, {id=3, "
+                + "width=1080, height=2340, fps=90.0}, {id=4, width=1080, height=2340, fps=60.0}], hdrCapabilities "
+                + "HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], mMaxLuminance=540.0, mMaxAverageLuminance=270.1, mMinLuminance=0.2}, "
+                + "minimalPostProcessingSupported false, rotation 3, state ON, type INTERNAL, uniqueId \"local:0\", app 3120 x 1440, density 600 "
+                + "(515.154 x 514.597) dpi, layerStack 0, colorMode 0, supportedColorModes [0, 7, 9], address {port=129, model=0}, deviceProductInfo "
+                + "DeviceProductInfo{name=, manufacturerPnpId=QCM, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, "
+                + "relativeAddress=null}, removeMode 0}\n"
+                + "    mRequestedMinimalPostProcessing=false";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 0);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(0, displayInfo.getDisplayId());
+        Assert.assertEquals(3, displayInfo.getRotation());
+        Assert.assertEquals(0, displayInfo.getLayerStack());
+        // FLAG_TRUSTED does not exist in Display (@TestApi), so it won't be reported
+        Assert.assertEquals(Display.FLAG_SECURE | Display.FLAG_SUPPORTS_PROTECTED_BUFFERS, displayInfo.getFlags());
+        Assert.assertEquals(3120, displayInfo.getSize().getWidth());
+        Assert.assertEquals(1440, displayInfo.getSize().getHeight());
+    }
+
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplayAPI31() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=1\n"
+                + "  Display 0:\n"
+                + "    mDisplayId=0\n"
+                + "    mPhase=1\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mDesiredDisplayModeSpecs={baseModeId=1 allowGroupSwitching=false primaryRefreshRateRange=[0 60] appRequestRefreshRateRange=[0 "
+                + "Infinity]}\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0\", displayGroupId 0, FLAG_SECURE, "
+                + "FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1080 x 2280, largest app 1080 x 2280, smallest app 1080 x 2280, appVsyncOff "
+                + "1000000, presDeadline 16666666, mode 1, defaultMode 1, modes [{id=1, width=1080, height=2280, fps=60.000004, "
+                + "alternativeRefreshRates=[]}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, "
+                + "mMaxAverageLuminance=500.0, mMinLuminance=0.0}, userDisabledHdrTypes [], minimalPostProcessingSupported false, rotation 0, state "
+                + "ON, type INTERNAL, uniqueId \"local:0\", app 1080 x 2280, density 440 (440.0 x 440.0) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0], address {port=0, model=0}, deviceProductInfo DeviceProductInfo{name=EMU_display_0, "
+                + "manufacturerPnpId=GGL, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, connectionToSinkType=0}, "
+                + "removeMode 0, refreshRateOverride 0.0, brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.39763778}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0\", displayGroupId 0, FLAG_SECURE, "
+                + "FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1080 x 2280, largest app 2148 x 2065, smallest app 1080 x 997, appVsyncOff "
+                + "1000000, presDeadline 16666666, mode 1, defaultMode 1, modes [{id=1, width=1080, height=2280, fps=60.000004, "
+                + "alternativeRefreshRates=[]}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, "
+                + "mMaxAverageLuminance=500.0, mMinLuminance=0.0}, userDisabledHdrTypes [], minimalPostProcessingSupported false, rotation 0, state "
+                + "ON, type INTERNAL, uniqueId \"local:0\", app 1080 x 2148, density 440 (440.0 x 440.0) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0], address {port=0, model=0}, deviceProductInfo DeviceProductInfo{name=EMU_display_0, "
+                + "manufacturerPnpId=GGL, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, connectionToSinkType=0}, "
+                + "removeMode 0, refreshRateOverride 0.0, brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.39763778}\n"
+                + "    mRequestedMinimalPostProcessing=false\n"
+                + "    mFrameRateOverrides=[]\n"
+                + "    mPendingFrameRateOverrideUids={}\n";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 0);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(0, displayInfo.getDisplayId());
+        Assert.assertEquals(0, displayInfo.getRotation());
+        Assert.assertEquals(0, displayInfo.getLayerStack());
+        // FLAG_TRUSTED does not exist in Display (@TestApi), so it won't be reported
+        Assert.assertEquals(Display.FLAG_SECURE | Display.FLAG_SUPPORTS_PROTECTED_BUFFERS, displayInfo.getFlags());
+        Assert.assertEquals(1080, displayInfo.getSize().getWidth());
+        Assert.assertEquals(2280, displayInfo.getSize().getHeight());
+    }
+
+    @Test
+    public void testParseDisplayInfoFromDumpsysDisplayAPI31NoFlags() {
+        /* @formatter:off */
+        String partialOutput = "Logical Displays: size=1\n"
+                + "  Display 0:\n"
+                + "    mDisplayId=0\n"
+                + "    mPhase=1\n"
+                + "    mLayerStack=0\n"
+                + "    mHasContent=true\n"
+                + "    mDesiredDisplayModeSpecs={baseModeId=1 allowGroupSwitching=false primaryRefreshRateRange=[0 60] appRequestRefreshRateRange=[0 "
+                + "Infinity]}\n"
+                + "    mRequestedColorMode=0\n"
+                + "    mDisplayOffset=(0, 0)\n"
+                + "    mDisplayScalingDisabled=false\n"
+                + "    mPrimaryDisplayDevice=Built-in Screen\n"
+                + "    mBaseDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0\", displayGroupId 0, "
+                + "real 1080 x 2280, largest app 1080 x 2280, smallest app 1080 x 2280, appVsyncOff "
+                + "1000000, presDeadline 16666666, mode 1, defaultMode 1, modes [{id=1, width=1080, height=2280, fps=60.000004, "
+                + "alternativeRefreshRates=[]}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, "
+                + "mMaxAverageLuminance=500.0, mMinLuminance=0.0}, userDisabledHdrTypes [], minimalPostProcessingSupported false, rotation 0, state "
+                + "ON, type INTERNAL, uniqueId \"local:0\", app 1080 x 2280, density 440 (440.0 x 440.0) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0], address {port=0, model=0}, deviceProductInfo DeviceProductInfo{name=EMU_display_0, "
+                + "manufacturerPnpId=GGL, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, connectionToSinkType=0}, "
+                + "removeMode 0, refreshRateOverride 0.0, brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.39763778}\n"
+                + "    mOverrideDisplayInfo=DisplayInfo{\"Built-in Screen\", displayId 0\", displayGroupId 0, "
+                + "real 1080 x 2280, largest app 2148 x 2065, smallest app 1080 x 997, appVsyncOff "
+                + "1000000, presDeadline 16666666, mode 1, defaultMode 1, modes [{id=1, width=1080, height=2280, fps=60.000004, "
+                + "alternativeRefreshRates=[]}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, "
+                + "mMaxAverageLuminance=500.0, mMinLuminance=0.0}, userDisabledHdrTypes [], minimalPostProcessingSupported false, rotation 0, state "
+                + "ON, type INTERNAL, uniqueId \"local:0\", app 1080 x 2148, density 440 (440.0 x 440.0) dpi, layerStack 0, colorMode 0, "
+                + "supportedColorModes [0], address {port=0, model=0}, deviceProductInfo DeviceProductInfo{name=EMU_display_0, "
+                + "manufacturerPnpId=GGL, productId=1, modelYear=null, manufactureDate=ManufactureDate{week=27, year=2006}, connectionToSinkType=0}, "
+                + "removeMode 0, refreshRateOverride 0.0, brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.39763778}\n"
+                + "    mRequestedMinimalPostProcessing=false\n"
+                + "    mFrameRateOverrides=[]\n"
+                + "    mPendingFrameRateOverrideUids={}\n";
+        DisplayInfo displayInfo = DisplayManager.parseDisplayInfo(partialOutput, 0);
+        Assert.assertNotNull(displayInfo);
+        Assert.assertEquals(0, displayInfo.getDisplayId());
+        Assert.assertEquals(0, displayInfo.getRotation());
+        Assert.assertEquals(0, displayInfo.getLayerStack());
+        Assert.assertEquals(0, displayInfo.getFlags());
+        Assert.assertEquals(1080, displayInfo.getSize().getWidth());
+        Assert.assertEquals(2280, displayInfo.getSize().getHeight());
+    }
+}