Add workarounds for Honor devices

Audio did not work on Honor devices. To make it work, a system context must be set as a base context of FakeContext (so that a PackageManager is available), and a current ActivityThread must be initialized. These workarounds must not be applied for all devices, because they might cause other issues. Fixes #4015 <#4015> Refs #3085 <#3805> Co-authored-by: Simon Chan <[email protected]>
Genymobile · Jun 19, 2023 · feb247f · feb247f
1 parent 48a00fb
commit feb247f
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Showing 3 changed files with 32 additions and 10 deletions.
diff --git a/server/src/main/java/com/genymobile/scrcpy/FakeContext.java b/server/src/main/java/com/genymobile/scrcpy/FakeContext.java
@@ -2,11 +2,11 @@
 
 import android.annotation.TargetApi;
 import android.content.AttributionSource;
-import android.content.ContextWrapper;
+import android.content.MutableContextWrapper;
 import android.os.Build;
 import android.os.Process;
 
-public final class FakeContext extends ContextWrapper {
+public final class FakeContext extends MutableContextWrapper {
 
     public static final String PACKAGE_NAME = "com.android.shell";
     public static final int ROOT_UID = 0; // Like android.os.Process.ROOT_UID, but before API 29

diff --git a/server/src/main/java/com/genymobile/scrcpy/Server.java b/server/src/main/java/com/genymobile/scrcpy/Server.java
@@ -101,16 +101,24 @@ private static void scrcpy(Options options) throws IOException, ConfigurationExc
 
         Workarounds.prepareMainLooper();
 
-        // Workarounds must be applied for Meizu phones:
-        //  - <https://github.com/Genymobile/scrcpy/issues/240>
-        //  - <https://github.com/Genymobile/scrcpy/issues/365>
-        //  - <https://github.com/Genymobile/scrcpy/issues/2656>
-        //
-        // But only apply when strictly necessary, since workarounds can cause other issues:
-        //  - <https://github.com/Genymobile/scrcpy/issues/940>
-        //  - <https://github.com/Genymobile/scrcpy/issues/994>
         if (Build.BRAND.equalsIgnoreCase("meizu")) {
+            // Workarounds must be applied for Meizu phones:
+            //  - <https://github.com/Genymobile/scrcpy/issues/240>
+            //  - <https://github.com/Genymobile/scrcpy/issues/365>
+            //  - <https://github.com/Genymobile/scrcpy/issues/2656>
+            //
+            // But only apply when strictly necessary, since workarounds can cause other issues:
+            //  - <https://github.com/Genymobile/scrcpy/issues/940>
+            //  - <https://github.com/Genymobile/scrcpy/issues/994>
             Workarounds.fillAppInfo();
+        } else if (Build.BRAND.equalsIgnoreCase("honor")) {
+            // Honor devices require in addition a system context as a base context of FakeContext:
+            //  - <https://github.com/Genymobile/scrcpy/issues/4015>
+            // The system context must not be set for all devices, because it would cause other problems:
+            //  - <https://github.com/Genymobile/scrcpy/issues/4015#issuecomment-1595382142>
+            //  - <https://github.com/Genymobile/scrcpy/issues/3805#issuecomment-1596148031>
+            Workarounds.fillAppInfo();
+            Workarounds.fillBaseContext();
         }
 
         // Before Android 11, audio is not supported.

diff --git a/server/src/main/java/com/genymobile/scrcpy/Workarounds.java b/server/src/main/java/com/genymobile/scrcpy/Workarounds.java
@@ -4,6 +4,7 @@
 import android.annotation.TargetApi;
 import android.app.Application;
 import android.content.AttributionSource;
+import android.content.Context;
 import android.content.ContextWrapper;
 import android.content.pm.ApplicationInfo;
 import android.media.AudioAttributes;
@@ -105,6 +106,19 @@ public static void fillAppContext() {
         }
     }
 
+    public static void fillBaseContext() {
+        try {
+            fillActivityThread();
+
+            Method getSystemContextMethod = activityThreadClass.getDeclaredMethod("getSystemContext");
+            Context context = (Context) getSystemContextMethod.invoke(activityThread);
+            FakeContext.get().setBaseContext(context);
+        } catch (Throwable throwable) {
+            // this is a workaround, so failing is not an error
+            Ln.d("Could not fill base context: " + throwable.getMessage());
+        }
+    }
+
     @TargetApi(Build.VERSION_CODES.R)
     @SuppressLint("WrongConstant,MissingPermission,BlockedPrivateApi,SoonBlockedPrivateApi,DiscouragedPrivateApi")
     public static AudioRecord createAudioRecord(int source, int sampleRate, int channelConfig, int channels, int channelMask, int encoding) {