From 65d6bdb237f5487071b48969bbf0d105c4e8f992 Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Fri, 3 Nov 2023 09:58:22 +0100
Subject: [PATCH] Attempt to fix #4392

<https://github.com/Genymobile/scrcpy/issues/4392#issuecomment-1790954884>
---
 .../com/genymobile/scrcpy/FakeContext.java    |  2 +-
 .../com/genymobile/scrcpy/Workarounds.java    | 27 +++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/server/src/main/java/com/genymobile/scrcpy/FakeContext.java b/server/src/main/java/com/genymobile/scrcpy/FakeContext.java
index 6501d4cf..d9bcaf9e 100644
--- a/server/src/main/java/com/genymobile/scrcpy/FakeContext.java
+++ b/server/src/main/java/com/genymobile/scrcpy/FakeContext.java
@@ -18,7 +18,7 @@ public final class FakeContext extends MutableContextWrapper {
     }
 
     private FakeContext() {
-        super(null);
+        super(Workarounds.retrieveSystemContext());
     }
 
     @Override
diff --git a/server/src/main/java/com/genymobile/scrcpy/Workarounds.java b/server/src/main/java/com/genymobile/scrcpy/Workarounds.java
index b8ee68ca..37240246 100644
--- a/server/src/main/java/com/genymobile/scrcpy/Workarounds.java
+++ b/server/src/main/java/com/genymobile/scrcpy/Workarounds.java
@@ -7,6 +7,7 @@ import android.content.AttributionSource;
 import android.content.Context;
 import android.content.ContextWrapper;
 import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
 import android.media.AudioAttributes;
 import android.media.AudioManager;
 import android.media.AudioRecord;
@@ -30,6 +31,11 @@ public final class Workarounds {
 
     public static void apply(boolean audio, boolean camera) {
         Workarounds.prepareMainLooper();
+        try {
+            fillActivityThread();
+        } catch (Exception e) {
+            throw new AssertionError(e);
+        }
 
         boolean mustFillAppInfo = false;
         boolean mustFillBaseContext = false;
@@ -123,6 +129,17 @@ public final class Workarounds {
             ApplicationInfo applicationInfo = new ApplicationInfo();
             applicationInfo.packageName = FakeContext.PACKAGE_NAME;
 
+            Application application = new Application() {
+                @Override
+                public String getOpPackageName() {
+                    return FakeContext.PACKAGE_NAME;
+                }
+            };
+
+            Field initialApplicationField = activityThreadClass.getDeclaredField("mInitialApplication");
+            initialApplicationField.setAccessible(true);
+            initialApplicationField.set(activityThread, application);
+
             // appBindData.appInfo = applicationInfo;
             Field appInfoField = appBindDataClass.getDeclaredField("appInfo");
             appInfoField.setAccessible(true);
@@ -306,4 +323,14 @@ public final class Workarounds {
             throw new RuntimeException("Cannot create AudioRecord");
         }
     }
+
+    static Context retrieveSystemContext() {
+        try {
+            Method getSystemContextMethod = activityThreadClass.getDeclaredMethod("getSystemContext");
+            return (Context) getSystemContextMethod.invoke(activityThread);
+        } catch (Exception e) {
+            Ln.e("Cannot retrieve system context", e);
+            return null;
+        }
+    }
 }