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 package com.android.contacts.common.logging; 17 18 import android.app.Activity; 19 import android.app.Fragment; 20 import android.text.TextUtils; 21 22 import com.android.contacts.common.logging.ScreenEvent.ScreenType; 23 import com.android.contacts.commonbind.ObjectFactory; 24 import com.android.contacts.commonbind.analytics.AnalyticsUtil; 25 26 /** 27 * Logs analytics events. 28 */ 29 public abstract class Logger { 30 public static final String TAG = "Logger"; 31 32 private static Logger getInstance() { 33 return ObjectFactory.getLogger(); 34 } 35 36 /** 37 * Logs an event indicating that a screen was displayed. 38 * 39 * @param screenType integer identifier of the displayed screen 40 * @param activity Parent activity of the displayed screen. 41 */ 42 public static void logScreenView(Activity activity, int screenType) { 43 logScreenView(activity, screenType, ScreenType.UNKNOWN); 44 } 45 46 /** 47 * @param previousScreenType integer identifier of the displayed screen the user came from. 48 */ 49 public static void logScreenView(Activity activity, int screenType, int previousScreenType) { 50 final Logger logger = getInstance(); 51 if (logger != null) { 52 logger.logScreenViewImpl(screenType, previousScreenType); 53 } 54 // We prepend the friendly screen name with "From" and use it as the tag to indicate the 55 // screen where the user was previously when they initiated the screen view being logged 56 String tag = ScreenType.getFriendlyName(previousScreenType); 57 if (!TextUtils.isEmpty(tag)) { 58 tag = "From" + tag; 59 } 60 AnalyticsUtil.sendScreenView(/* fragmentName */ (String) null, activity, tag); 61 } 62 63 /** 64 * Logs the results of a user search for a particular contact. 65 */ 66 public static void logSearchEvent(SearchState searchState) { 67 final Logger logger = getInstance(); 68 if (logger != null) { 69 logger.logSearchEventImpl(searchState); 70 } 71 } 72 73 public abstract void logScreenViewImpl(int screenType, int previousScreenType); 74 public abstract void logSearchEventImpl(SearchState searchState); 75 } 76
