Merge "Fix IME icon flicker when switching apps" into sc-dev

services/core/java/com/android/server/inputmethod/InputMethodManagerInternal.java

@@ -126,8 +126,10 @@ public abstract class InputMethodManagerInternal {
 
     /**
      * Updates the IME visibility, back disposition and show IME picker status for SystemUI.
+     * TODO(b/189923292): Making SystemUI to be true IME icon controller vs. presenter that
+     *     controlled by IMMS.
      */
-    public abstract void updateImeWindowStatus();
+    public abstract void updateImeWindowStatus(boolean disableImeIcon);
 
     /**
      * Fake implementation of {@link InputMethodManagerInternal}.  All the methods do nothing.
@@ -182,7 +184,7 @@ public abstract class InputMethodManagerInternal {
                 }
 
                 @Override
-                public void updateImeWindowStatus() {
+                public void updateImeWindowStatus(boolean disableImeIcon) {
                 }
             };
 

services/core/java/com/android/server/inputmethod/InputMethodManagerService.java

@@ -2862,9 +2862,13 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
         }
     }
 
-    private void updateImeWindowStatus() {
+    private void updateImeWindowStatus(boolean disableImeIcon) {
         synchronized (mMethodMap) {
-            updateSystemUiLocked();
+            if (disableImeIcon) {
+                updateSystemUiLocked(0, mBackDisposition);
+            } else {
+                updateSystemUiLocked();
+            }
         }
     }
 
@@ -4413,9 +4417,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
                 return true;
             }
             case MSG_UPDATE_IME_WINDOW_STATUS: {
-                synchronized (mMethodMap) {
+                updateImeWindowStatus(msg.arg1 == 1);
-                    updateSystemUiLocked();
-                }
                 return true;
             }
             // ---------------------------------------------------------
@@ -5085,9 +5087,10 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
         }
 
         @Override
-        public void updateImeWindowStatus() {
+        public void updateImeWindowStatus(boolean disableImeIcon) {
             mService.mHandler.sendMessage(
-                    mService.mHandler.obtainMessage(MSG_UPDATE_IME_WINDOW_STATUS));
+                    mService.mHandler.obtainMessage(MSG_UPDATE_IME_WINDOW_STATUS,
+                            disableImeIcon ? 1 : 0, 0));
         }
     }
 

services/core/java/com/android/server/inputmethod/InputMethodMenuController.java

@@ -261,11 +261,11 @@ public class InputMethodMenuController {
             mSwitchingDialog.dismiss();
             mSwitchingDialog = null;
             mSwitchingDialogTitleView = null;
-        }
 
-        mService.updateSystemUiLocked();
+            mService.updateSystemUiLocked();
-        mDialogBuilder = null;
+            mDialogBuilder = null;
-        mIms = null;
+            mIms = null;
+        }
     }
 
     HardKeyboardListener getHardKeyboardListener() {

services/core/java/com/android/server/inputmethod/MultiClientInputMethodManagerService.java

@@ -243,7 +243,7 @@ public final class MultiClientInputMethodManagerService {
                         }
 
                         @Override
-                        public void updateImeWindowStatus() {
+                        public void updateImeWindowStatus(boolean disableImeIcon) {
                         }
                     });
         }

services/core/java/com/android/server/wm/KeyguardController.java

@@ -192,7 +192,7 @@ class KeyguardController {
         // state when evaluating visibilities.
         updateKeyguardSleepToken();
         mRootWindowContainer.ensureActivitiesVisible(null, 0, !PRESERVE_WINDOWS);
-        InputMethodManagerInternal.get().updateImeWindowStatus();
+        InputMethodManagerInternal.get().updateImeWindowStatus(false /* disableImeIcon */);
     }
 
     /**

services/core/java/com/android/server/wm/RecentsAnimationController.java

@@ -303,6 +303,13 @@ public class RecentsAnimationController implements DeathRecipient {
                                 inputMethodManagerInternal.hideCurrentInputMethod(
                                         SoftInputShowHideReason.HIDE_RECENTS_ANIMATION);
                             }
+                        } else {
+                            // Disable IME icon explicitly when IME attached to the app in case
+                            // IME icon might flickering while swiping to the next app task still
+                            // in animating before the next app window focused, or IME icon
+                            // persists on the bottom when swiping the task to recents.
+                            InputMethodManagerInternal.get().updateImeWindowStatus(
+                                    true /* disableImeIcon */);
                         }
                     }
                     mService.mWindowPlacerLocked.requestTraversal();
@@ -925,6 +932,12 @@ public class RecentsAnimationController implements DeathRecipient {
             mRecentScreenshotAnimator = null;
         }
 
+        // Restore IME icon only when moving the original app task to front from recents, in case
+        // IME icon may missing if the moving task has already been the current focused task.
+        if (reorderMode == REORDER_MOVE_TO_ORIGINAL_POSITION && !mIsAddingTaskToTargets) {
+            InputMethodManagerInternal.get().updateImeWindowStatus(false /* disableImeIcon */);
+        }
+
         // Update the input windows after the animation is complete
         final InputMonitor inputMonitor = mDisplayContent.getInputMonitor();
         inputMonitor.updateInputWindowsLw(true /*force*/);