Destroy and reinflate bouncer before showing

Due to various bugs and settingns changes, it makes sense to entirely
refresh the bouncer view before showing. This should significantly
reduce the number of incoming bugs where bouncer is not showing or is
not responding to settings changes.

Fixes: 260958175
Fixes: 266840428
Fixes: 268226007
Fixes: 267363062
Test: open sim pin, sim puk, password, pattern, pin.
Test: change pattern visible to see changes reflected on screen.
Test: change show password characters to see changes reflected on
screen.

Change-Id: I8d7a906866888ad292bd8f813cdba99920a56884

packages/SystemUI/src/com/android/keyguard/KeyguardHostViewController.java

@@ -202,8 +202,11 @@ public class KeyguardHostViewController extends ViewController<KeyguardHostView>
         mKeyguardSecurityContainerController.onPause();
     }
 
-    public void resetSecurityContainer() {
-        mKeyguardSecurityContainerController.reset();
+    /**
+     * Reinflate the view flipper child view.
+     */
+    public void reinflateViewFlipper() {
+        mKeyguardSecurityContainerController.reinflateViewFlipper();
     }
 
     /**
@@ -232,23 +235,19 @@ public class KeyguardHostViewController extends ViewController<KeyguardHostView>
     /**
      * Starts the animation when the Keyguard gets shown.
      */
-    public void appear(int statusBarHeight) {
+    public void appear() {
         // We might still be collapsed and the view didn't have time to layout yet or still
         // be small, let's wait on the predraw to do the animation in that case.
-        if (mView.getHeight() != 0 && mView.getHeight() != statusBarHeight) {
-            mKeyguardSecurityContainerController.startAppearAnimation();
-        } else {
-            mView.getViewTreeObserver().addOnPreDrawListener(
-                    new ViewTreeObserver.OnPreDrawListener() {
-                        @Override
-                        public boolean onPreDraw() {
-                            mView.getViewTreeObserver().removeOnPreDrawListener(this);
-                            mKeyguardSecurityContainerController.startAppearAnimation();
-                            return true;
-                        }
-                    });
-            mView.requestLayout();
-        }
+        mView.getViewTreeObserver().addOnPreDrawListener(
+                new ViewTreeObserver.OnPreDrawListener() {
+                    @Override
+                    public boolean onPreDraw() {
+                        mView.getViewTreeObserver().removeOnPreDrawListener(this);
+                        mKeyguardSecurityContainerController.startAppearAnimation();
+                        return true;
+                    }
+                });
+        mView.requestLayout();
     }
 
     /**

packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainerController.java

@@ -743,17 +743,20 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
     }
 
     private void reloadColors() {
-        resetViewFlipper();
+        reinflateViewFlipper();
         mView.reloadColors();
     }
 
     /** Handles density or font scale changes. */
     private void onDensityOrFontScaleChanged() {
-        resetViewFlipper();
+        reinflateViewFlipper();
         mView.onDensityOrFontScaleChanged();
     }
 
-    private void resetViewFlipper() {
+    /**
+     * Reinflate the view flipper child view.
+     */
+    public void reinflateViewFlipper() {
         mSecurityViewFlipperController.clearViews();
         mSecurityViewFlipperController.getSecurityView(mCurrentSecurityMode,
                 mKeyguardSecurityCallback);

packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/KeyguardBouncerViewBinder.kt

@@ -22,7 +22,6 @@ import android.view.ViewGroup
 import android.window.OnBackAnimationCallback
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.repeatOnLifecycle
-import com.android.internal.policy.SystemBarUtils
 import com.android.keyguard.KeyguardHostViewController
 import com.android.keyguard.KeyguardSecurityModel
 import com.android.keyguard.KeyguardUpdateMonitor
@@ -98,14 +97,14 @@ object KeyguardBouncerViewBinder {
                     viewModel.setBouncerViewDelegate(delegate)
                     launch {
                         viewModel.show.collect {
+                            // Reset Security Container entirely.
+                            hostViewController.reinflateViewFlipper()
                             hostViewController.showPromptReason(it.promptReason)
                             it.errorMessage?.let { errorMessage ->
                                 hostViewController.showErrorMessage(errorMessage)
                             }
                             hostViewController.showPrimarySecurityScreen()
-                            hostViewController.appear(
-                                SystemBarUtils.getStatusBarHeight(view.context)
-                            )
+                            hostViewController.appear()
                             hostViewController.onResume()
                         }
                     }
@@ -114,7 +113,6 @@ object KeyguardBouncerViewBinder {
                         viewModel.hide.collect {
                             hostViewController.cancelDismissAction()
                             hostViewController.cleanUp()
-                            hostViewController.resetSecurityContainer()
                         }
                     }
 
@@ -159,15 +157,6 @@ object KeyguardBouncerViewBinder {
                         }
                     }
 
-                    launch {
-                        viewModel.isBouncerVisible
-                            .filter { !it }
-                            .collect {
-                                // Remove existing input for security reasons.
-                                hostViewController.resetSecurityContainer()
-                            }
-                    }
-
                     launch {
                         viewModel.keyguardPosition.collect { position ->
                             hostViewController.updateKeyguardPosition(position)

packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerControllerTest.java

@@ -600,6 +600,14 @@ public class KeyguardSecurityContainerControllerTest extends SysuiTestCase {
                 any(KeyguardSecurityCallback.class));
     }
 
+    @Test
+    public void testReinflateViewFlipper() {
+        mKeyguardSecurityContainerController.reinflateViewFlipper();
+        verify(mKeyguardSecurityViewFlipperController).clearViews();
+        verify(mKeyguardSecurityViewFlipperController).getSecurityView(any(SecurityMode.class),
+                any(KeyguardSecurityCallback.class));
+    }
+
     private KeyguardSecurityContainer.SwipeListener getRegisteredSwipeListener() {
         mKeyguardSecurityContainerController.onViewAttached();
         verify(mView).setSwipeListener(mSwipeListenerArgumentCaptor.capture());