1 /* 2 * Copyright (C) 2015 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 com.android.settings; 18 19 import android.preference.PreferenceActivity; 20 import com.android.internal.logging.MetricsLogger; 21 22 /** 23 * Instrumented activity that logs visibility state. 24 */ 25 public abstract class InstrumentedPreferenceActivity extends PreferenceActivity { 26 /** 27 * Declare the view of this category. 28 * 29 * Categories are defined in {@link com.android.internal.logging.MetricsLogger} 30 * or if there is no relevant existing category you may define one in 31 * {@link com.android.settings.InstrumentedFragment}. 32 */ 33 protected abstract int getMetricsCategory(); 34 35 @Override 36 protected void onResume() { 37 super.onResume(); 38 MetricsLogger.visible(this, getMetricsCategory()); 39 } 40 41 @Override 42 protected void onPause() { 43 super.onPause(); 44 MetricsLogger.hidden(this, getMetricsCategory()); 45 } 46 } 47
