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-rw-r--r--core/java/android/view/SurfaceControlViewHost.java13
1 files changed, 10 insertions, 3 deletions
diff --git a/core/java/android/view/SurfaceControlViewHost.java b/core/java/android/view/SurfaceControlViewHost.java
index ac50d09cc091..cd89a561074c 100644
--- a/core/java/android/view/SurfaceControlViewHost.java
+++ b/core/java/android/view/SurfaceControlViewHost.java
@@ -99,9 +99,16 @@ public class SurfaceControlViewHost {
@Override
public ISurfaceSyncGroup getSurfaceSyncGroup() {
CompletableFuture<ISurfaceSyncGroup> surfaceSyncGroup = new CompletableFuture<>();
- mViewRoot.mHandler.post(
- () -> surfaceSyncGroup.complete(
- mViewRoot.getOrCreateSurfaceSyncGroup().mISurfaceSyncGroup));
+ // If the call came from in process and it's already running on the UI thread, return
+ // results immediately instead of posting to the main thread. If we post to the main
+ // thread, it will block itself and the return value will always be null.
+ if (Thread.currentThread() == mViewRoot.mThread) {
+ return mViewRoot.getOrCreateSurfaceSyncGroup().mISurfaceSyncGroup;
+ } else {
+ mViewRoot.mHandler.post(
+ () -> surfaceSyncGroup.complete(
+ mViewRoot.getOrCreateSurfaceSyncGroup().mISurfaceSyncGroup));
+ }
try {
return surfaceSyncGroup.get(1, TimeUnit.SECONDS);
} catch (InterruptedException | ExecutionException | TimeoutException e) {