Update QS tile states after unlocking

So the visibility state is up-to-date when we do a two-finger
expansion gesture, so the height is correct. Also fixes flickering
when overscrolling the initial panel expansion.

Also set thread priority of QS handler thread to background priority,
so it doesn't eat away precious cycles during animations.

Bug: 18183633
Change-Id: I0609509484582d82f0dc307eb2535bc3711b30e3

3 files changed, 10 insertions, 2 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
index 54a84141b341..1ddd3520c836 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
@@ -203,7 +203,7 @@ public class QSPanel extends ViewGroup {
         }
     }
 
-    private void refreshAllTiles() {
+    public void refreshAllTiles() {
         for (TileRecord r : mRecords) {
             r.tile.refreshState();
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index eb487547f967..65762ec1cdcd 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -3611,6 +3611,12 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
             instantCollapseNotificationPanel();
         }
         updateKeyguardState(staying, false /* fromShadeLocked */);
+
+        // Keyguard state has changed, but QS is not listening anymore. Make sure to update the tile
+        // visibilities so next time we open the panel we know the correct height already.
+        if (mQSPanel != null) {
+            mQSPanel.refreshAllTiles();
+        }
         return staying;
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
index a4db46a0b567..45a138610b1c 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QSTileHost.java
@@ -21,6 +21,7 @@ import android.content.Intent;
 import android.content.res.Resources;
 import android.database.ContentObserver;
 import android.net.Uri;
+import android.os.Process;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Looper;
@@ -108,7 +109,8 @@ public class QSTileHost implements QSTile.Host {
         mKeyguard = keyguard;
         mSecurity = security;
 
-        final HandlerThread ht = new HandlerThread(QSTileHost.class.getSimpleName());
+        final HandlerThread ht = new HandlerThread(QSTileHost.class.getSimpleName(),
+                Process.THREAD_PRIORITY_BACKGROUND);
         ht.start();
         mLooper = ht.getLooper();