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