1 /* 2 * Copyright (C) 2016 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 androidx.appcompat.app; 18 19 import androidx.appcompat.test.R; 20 import androidx.appcompat.testutils.BaseTestActivity; 21 22 public class NightModeActivity extends BaseTestActivity { 23 24 /** 25 * Warning, gross hack here. Since night mode uses recreate(), we need a way to be able to 26 * grab the top activity. The test runner only keeps reference to the original Activity which 27 * is no good for these tests. Fixed by keeping a static reference to the 'top' instance, and 28 * updating it in onResume and onPause. I said it was gross. 29 */ 30 static NightModeActivity TOP_ACTIVITY = null; 31 32 @Override 33 protected int getContentViewLayoutResId() { 34 return R.layout.activity_night_mode; 35 } 36 37 @Override 38 protected void onResume() { 39 super.onResume(); 40 TOP_ACTIVITY = this; 41 } 42 43 @Override 44 protected void onPause() { 45 super.onPause(); 46 if (TOP_ACTIVITY == this) { 47 TOP_ACTIVITY = null; 48 } 49 } 50 } 51