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 com.android.contacts; 18 19 import android.app.Fragment; 20 import android.app.FragmentManager; 21 import android.app.FragmentTransaction; 22 import android.content.ContentResolver; 23 import android.content.Intent; 24 import android.content.SharedPreferences; 25 import android.os.Bundle; 26 import android.view.View; 27 28 import com.android.contacts.activities.AppCompatTransactionSafeActivity; 29 import com.android.contacts.testing.InjectedServices; 30 31 /** 32 * A common superclass for Contacts activities that handles application-wide services, copied from 33 * {@link com.android.contacts.ContactsActivity}, which will be deprecated after Kitkat backporting 34 * is done. 35 */ 36 public abstract class AppCompatContactsActivity extends AppCompatTransactionSafeActivity 37 implements ContactSaveService.Listener { 38 39 private ContentResolver mContentResolver; 40 41 @Override getContentResolver()42 public ContentResolver getContentResolver() { 43 if (mContentResolver == null) { 44 InjectedServices services = ContactsApplication.getInjectedServices(); 45 if (services != null) { 46 mContentResolver = services.getContentResolver(); 47 } 48 if (mContentResolver == null) { 49 mContentResolver = super.getContentResolver(); 50 } 51 } 52 return mContentResolver; 53 } 54 55 @Override getSharedPreferences(String name, int mode)56 public SharedPreferences getSharedPreferences(String name, int mode) { 57 InjectedServices services = ContactsApplication.getInjectedServices(); 58 if (services != null) { 59 SharedPreferences prefs = services.getSharedPreferences(); 60 if (prefs != null) { 61 return prefs; 62 } 63 } 64 65 return super.getSharedPreferences(name, mode); 66 } 67 68 @Override getSystemService(String name)69 public Object getSystemService(String name) { 70 Object service = super.getSystemService(name); 71 if (service != null) { 72 return service; 73 } 74 75 return getApplicationContext().getSystemService(name); 76 } 77 78 @Override onCreate(Bundle savedInstanceState)79 protected void onCreate(Bundle savedInstanceState) { 80 ContactSaveService.registerListener(this); 81 super.onCreate(savedInstanceState); 82 } 83 84 @Override onDestroy()85 protected void onDestroy() { 86 ContactSaveService.unregisterListener(this); 87 super.onDestroy(); 88 } 89 90 @Override onServiceCompleted(Intent callbackIntent)91 public void onServiceCompleted(Intent callbackIntent) { 92 onNewIntent(callbackIntent); 93 } 94 95 /** 96 * Convenient version of {@link FragmentManager#findFragmentById(int)}, which throws 97 * an exception if the fragment doesn't exist. 98 */ 99 @SuppressWarnings("unchecked") getFragment(int id)100 public <T extends Fragment> T getFragment(int id) { 101 T result = (T)getFragmentManager().findFragmentById(id); 102 if (result == null) { 103 throw new IllegalArgumentException("fragment 0x" + Integer.toHexString(id) 104 + " doesn't exist"); 105 } 106 return result; 107 } 108 109 /** 110 * Convenient version of {@link #findViewById(int)}, which throws 111 * an exception if the view doesn't exist. 112 */ 113 @SuppressWarnings("unchecked") getView(int id)114 public <T extends View> T getView(int id) { 115 T result = (T)findViewById(id); 116 if (result == null) { 117 throw new IllegalArgumentException("view 0x" + Integer.toHexString(id) 118 + " doesn't exist"); 119 } 120 return result; 121 } 122 showFragment(FragmentTransaction ft, Fragment f)123 protected static void showFragment(FragmentTransaction ft, Fragment f) { 124 if ((f != null) && f.isHidden()) ft.show(f); 125 } 126 hideFragment(FragmentTransaction ft, Fragment f)127 protected static void hideFragment(FragmentTransaction ft, Fragment f) { 128 if ((f != null) && !f.isHidden()) ft.hide(f); 129 } 130 } 131