1 /* 2 * Copyright (C) 2007 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.example.android.apis.app; 18 19 import com.example.android.apis.ApiDemosApplication; 20 import com.example.android.apis.R; 21 22 import android.app.Application; 23 import android.content.SharedPreferences; 24 import android.os.Bundle; 25 import android.preference.PreferenceActivity; 26 import android.preference.PreferenceManager; 27 28 /** 29 * This activity is an example of a simple settings screen that has default 30 * values. 31 * <p> 32 * In order for the default values to be populated into the 33 * {@link SharedPreferences} (from the preferences XML file), the client must 34 * call 35 * {@link PreferenceManager#setDefaultValues(android.content.Context, int, boolean)}. 36 * <p> 37 * This should be called early, typically when the application is first created. 38 * This ensures any of the application's activities, services, etc. will have 39 * the default values present, even if the user has not wandered into the 40 * application's settings. For ApiDemos, this is {@link ApiDemosApplication}, 41 * and you can find the call to 42 * {@link PreferenceManager#setDefaultValues(android.content.Context, int, boolean)} 43 * in its {@link ApiDemosApplication#onCreate() onCreate}. 44 */ 45 public class DefaultValues extends PreferenceActivity { 46 47 @Override onCreate(Bundle savedInstanceState)48 protected void onCreate(Bundle savedInstanceState) { 49 super.onCreate(savedInstanceState); 50 51 addPreferencesFromResource(R.xml.default_values); 52 } 53 54 } 55