1 /* 2 * Copyright (C) 2014 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.support.test.runner.lifecycle; 18 19 import android.app.Activity; 20 21 /** 22 * Callback for monitoring activity lifecycle events. These callbacks are invoked on the main 23 * thread, so any long operations or violating the strict mode policies should be avoided. 24 */ 25 public interface ActivityLifecycleCallback { 26 27 /** 28 * Called on the main thread after an activity has processed its lifecycle change event 29 * (for example onResume or onStart) 30 * 31 * @param activity The activity 32 * @param stage its current stage. 33 */ 34 public void onActivityLifecycleChanged(Activity activity, Stage stage); 35 } 36 37