drgreen/scrcpy
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Initialize Application object to avoid NPE

Browse Source 
When an ApplicationInfo is set (commit
90293240cc622bb58cb1de741f86cbc0889c03e8), some devices (Nvidia Shield
TV) attempt to access the Application object, causing a
NullPointerException.

As a workaround, initialize an Application object.

Fixes <https://github.com/Genymobile/scrcpy/issues/940>
This commit is contained in:
Romain Vimont 2019-11-24 11:58:40 +01:00
parent ebdc2ee8b5
commit 2b845680b0
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
server/src/main/java/com/genymobile/scrcpy/Workarounds.java
View File

@ -1,11 +1,15 @@
package com.genymobile.scrcpy;
import android.annotation.SuppressLint;
import android.app.Application;
import android.app.Instrumentation;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.os.Looper;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
public final class Workarounds {
private Workarounds() {
@ -56,6 +60,17 @@ public final class Workarounds {
Field mBoundApplicationField = activityThreadClass.getDeclaredField("mBoundApplication");
mBoundApplicationField.setAccessible(true);
mBoundApplicationField.set(activityThread, appBindData);
// Context ctx = activityThread.getSystemContext();
Method getSystemContextMethod = activityThreadClass.getDeclaredMethod("getSystemContext");
Context ctx = (Context) getSystemContextMethod.invoke(activityThread);
Application app = Instrumentation.newApplication(Application.class, ctx);
// activityThread.mInitialApplication = app;
Field mInitialApplicationField = activityThreadClass.getDeclaredField("mInitialApplication");
mInitialApplicationField.setAccessible(true);
mInitialApplicationField.set(activityThread, app);
} catch (Throwable throwable) {
// this is a workaround, so failing is not an error
Ln.w("Could not fill app info: " + throwable.getMessage());