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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.view;
     18 
     19 import android.content.Context;
     20 import android.content.pm.ActivityInfo;
     21 import android.graphics.PixelFormat;
     22 import android.os.SystemClock;
     23 import android.support.test.filters.LargeTest;
     24 import android.test.ActivityInstrumentationTestCase2;
     25 import android.test.UiThreadTest;
     26 import android.view.View;
     27 import android.view.ViewGroup;
     28 import android.view.WindowManager;
     29 
     30 import com.android.frameworks.coretests.R;
     31 
     32 @LargeTest
     33 public class ViewAttachTest extends
     34         ActivityInstrumentationTestCase2<ViewAttachTestActivity> {
     35 
     36     public ViewAttachTest() {
     37         super(ViewAttachTestActivity.class);
     38     }
     39 
     40     /**
     41      * Make sure that onAttachedToWindow and onDetachedToWindow is called in the
     42      * correct order. The ViewAttachTestActivity contains a view that will throw
     43      * a RuntimeException if onDetachedToWindow and onAttachedToWindow are
     44      * called in the wrong order.
     45      *
     46      * 1. Initiate the activity 2. Perform a series of orientation changes to
     47      * the activity (this will force the View hierarchy to be rebuilt,
     48      * generating onAttachedToWindow and onDetachedToWindow)
     49      *
     50      * Expected result: No RuntimeException is thrown from the TestView in
     51      * ViewFlipperTestActivity.
     52      *
     53      * @throws Throwable
     54      */
     55     public void testAttached() throws Throwable {
     56         final ViewAttachTestActivity activity = getActivity();
     57         for (int i = 0; i < 20; i++) {
     58             activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
     59             SystemClock.sleep(250);
     60             activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
     61             SystemClock.sleep(250);
     62         }
     63     }
     64 
     65     /**
     66      * Make sure that on any attached view, if the view is full-screen and hosted
     67      * on a round device, the round scrollbars will be displayed even if the activity
     68      * window is offset.
     69      *
     70      * @throws Throwable
     71      */
     72     @UiThreadTest
     73     public void testRoundScrollbars() throws Throwable {
     74         final ViewAttachTestActivity activity = getActivity();
     75         final View rootView = activity.getWindow().getDecorView();
     76         final WindowManager.LayoutParams params =
     77             new WindowManager.LayoutParams(
     78                 rootView.getWidth(),
     79                 rootView.getHeight(),
     80                 50, /* xPosition */
     81                 0, /* yPosition */
     82                 WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
     83                 WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
     84                 PixelFormat.TRANSLUCENT);
     85 
     86         rootView.setLayoutParams(params);
     87 
     88         View contentView = activity.findViewById(R.id.view_attach_view);
     89         boolean shouldDrawRoundScrollbars = contentView.shouldDrawRoundScrollbar();
     90 
     91         if (activity.getResources().getConfiguration().isScreenRound()) {
     92             assertTrue(shouldDrawRoundScrollbars);
     93         } else {
     94             // Never draw round scrollbars on non-round devices.
     95             assertFalse(shouldDrawRoundScrollbars);
     96         }
     97     }
     98 }
     99