diff --git a/core/java/android/window/SurfaceSyncGroup.java b/core/java/android/window/SurfaceSyncGroup.java index dfdff9ef97cea..5d14698c82b3a 100644 --- a/core/java/android/window/SurfaceSyncGroup.java +++ b/core/java/android/window/SurfaceSyncGroup.java @@ -26,6 +26,7 @@ import android.os.Debug; import android.os.Handler; import android.os.HandlerThread; import android.os.IBinder; +import android.os.Looper; import android.os.RemoteException; import android.os.Trace; import android.util.ArraySet; @@ -800,22 +801,25 @@ public final class SurfaceSyncGroup { } private void addTimeout() { + Looper looper = null; synchronized (sHandlerThreadLock) { if (sHandlerThread == null) { sHandlerThread = new HandlerThread("SurfaceSyncGroupTimer"); sHandlerThread.start(); } + + looper = sHandlerThread.getLooper(); } synchronized (mLock) { - if (mTimeoutAdded || mTimeoutDisabled) { + if (mTimeoutAdded || mTimeoutDisabled || looper == null) { // We only need one timeout for the entire SurfaceSyncGroup since we just want to // ensure it doesn't stay stuck forever. return; } if (mHandler == null) { - mHandler = new Handler(sHandlerThread.getLooper()); + mHandler = new Handler(looper); } mTimeoutAdded = true;