Increase priority for broadcast intent triggered by HW key

Add the FLAG_RECEIVER_FOREGROUND flag to the broadcast intent
triggered by hardware key.
This prevents the framework from delaying the delivery of the
intent to its recipients, and improves the response for hardware
key event under heavy load on the system.

Bug: 28735973
Change-Id: Ib7f219845be34794f4c7545927e53cc6c2b504a3

1 files changed, 1 insertions, 0 deletions

diff --git a/core/java/com/android/internal/policy/PhoneFallbackEventHandler.java b/core/java/com/android/internal/policy/PhoneFallbackEventHandler.java
index 2cb9c250d2d1..fb0edea398ce 100644
--- a/core/java/com/android/internal/policy/PhoneFallbackEventHandler.java
+++ b/core/java/com/android/internal/policy/PhoneFallbackEventHandler.java
@@ -150,6 +150,7 @@ public class PhoneFallbackEventHandler implements FallbackEventHandler {
                         sendCloseSystemWindows();
                         // Broadcast an intent that the Camera button was longpressed
                         Intent intent = new Intent(Intent.ACTION_CAMERA_BUTTON, null);
+                        intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
                         intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
                         mContext.sendOrderedBroadcastAsUser(intent, UserHandle.CURRENT_OR_SELF,
                                 null, null, null, 0, null, null);