Remove add widget transition jank (insecure).

Refactor to use common activity launcher.

Still work to do on secure.

Bug:7482560
Change-Id: I2f8869afe8172850e1cb019a051aaeb49bb8c5bc

Author: John Spurlock

policy/src/com/android/internal/policy/impl/keyguard/KeyguardActivityLauncher.java

@@ -19,6 +19,8 @@
 import android.app.ActivityManagerNative;
 import android.app.ActivityOptions;
 import android.app.IActivityManager.WaitResult;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProviderInfo;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
@@ -112,6 +114,27 @@ public void launchCamera(Handler worker, Runnable onSecureCameraStarted) {
         }
     }
 
+    public void launchWidgetPicker(int appWidgetId) {
+        Intent pickIntent = new Intent(AppWidgetManager.ACTION_KEYGUARD_APPWIDGET_PICK);
+
+        pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
+        pickIntent.putExtra(AppWidgetManager.EXTRA_CUSTOM_SORT, false);
+        pickIntent.putExtra(AppWidgetManager.EXTRA_CATEGORY_FILTER,
+                AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD);
+
+        Bundle options = new Bundle();
+        options.putInt(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY,
+                AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD);
+        pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS, options);
+        pickIntent.addFlags(
+                Intent.FLAG_ACTIVITY_NEW_TASK
+                | Intent.FLAG_ACTIVITY_SINGLE_TOP
+                | Intent.FLAG_ACTIVITY_CLEAR_TOP
+                | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
+
+        launchActivity(pickIntent, false, false, null, null);
+    }
+
     /**
      * Launches the said intent for the current foreground user.
      *
@@ -128,7 +151,8 @@ public void launchActivity(final Intent intent,
             final Handler worker,
             final Runnable onStarted) {
         final Context context = getContext();
-        final Bundle animation = ActivityOptions.makeCustomAnimation(context, 0, 0).toBundle();
+        final Bundle animation = useDefaultAnimations ? null
+                : ActivityOptions.makeCustomAnimation(context, 0, 0).toBundle();
         LockPatternUtils lockPatternUtils = getLockPatternUtils();
         intent.addFlags(
                 Intent.FLAG_ACTIVITY_NEW_TASK

policy/src/com/android/internal/policy/impl/keyguard/KeyguardHostView.java

@@ -33,12 +33,10 @@
 import android.content.res.Resources;
 import android.graphics.Canvas;
 import android.graphics.Rect;
-import android.os.Bundle;
 import android.os.Looper;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.SystemClock;
-import android.os.UserHandle;
 import android.os.UserManager;
 import android.util.AttributeSet;
 import android.util.Log;
@@ -898,48 +896,19 @@ private void addDefaultWidgets() {
         addWidgetButton.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
-                mCallback.setOnDismissRunnable(new Runnable() {
-
-                    @Override
-                    public void run() {
-                        launchPickActivityIntent();
-                    }
-                });
-                mCallback.dismiss(false);
+                int appWidgetId = mAppWidgetHost.allocateAppWidgetId();
+                if (appWidgetId != -1) {
+                    mActivityLauncher.launchWidgetPicker(appWidgetId);
+                } else {
+                    Log.e(TAG, "Unable to allocate an AppWidget id in lock screen");
+                }
             }
         });
 
         enableUserSelectorIfNecessary();
         initializeTransportControl();
     }
 
-    private void launchPickActivityIntent() {
-        // Create intent to pick widget
-        Intent pickIntent = new Intent(AppWidgetManager.ACTION_KEYGUARD_APPWIDGET_PICK);
-
-        int appWidgetId = mAppWidgetHost.allocateAppWidgetId();
-        if (appWidgetId != -1) {
-            pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
-            pickIntent.putExtra(AppWidgetManager.EXTRA_CUSTOM_SORT, false);
-            pickIntent.putExtra(AppWidgetManager.EXTRA_CATEGORY_FILTER,
-                    AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD);
-
-            Bundle options = new Bundle();
-            options.putInt(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY,
-                    AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD);
-            pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS, options);
-            pickIntent.addFlags(
-                    Intent.FLAG_ACTIVITY_NEW_TASK
-                    | Intent.FLAG_ACTIVITY_SINGLE_TOP
-                    | Intent.FLAG_ACTIVITY_CLEAR_TOP
-                    | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
-            mContext.startActivityAsUser(pickIntent,
-                    new UserHandle(UserHandle.USER_CURRENT));
-        } else {
-            Log.e(TAG, "Unable to allocate an AppWidget id in lock screen");
-        }
-    }
-
     private void removeTransportFromWidgetPager() {
         int page = getWidgetPosition(R.id.keyguard_transport_control);
         if (page != -1) {