1 /* 2 * Copyright (C) 2012 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 android.preference.cts; 18 19 import android.os.Bundle; 20 import android.preference.PreferenceActivity; 21 import android.preference.PreferenceFragment; 22 import android.widget.Button; 23 24 import java.util.List; 25 26 /** 27 * Demonstration of PreferenceActivity to make a top-level preference 28 * panel with headers. 29 */ 30 31 public class PreferenceWithHeaders extends PreferenceActivity { 32 33 // For tests to verify if the headers were loaded. 34 public List<Header> loadedHeaders; 35 36 public boolean onCreateFinished; 37 38 @Override onCreate(Bundle savedInstanceState)39 protected void onCreate(Bundle savedInstanceState) { 40 super.onCreate(savedInstanceState); 41 // Add a button to the header list. 42 if (hasHeaders()) { 43 Button button = new Button(this); 44 button.setText("Some action"); 45 setListFooter(button); 46 } 47 onCreateFinished = true; 48 } 49 50 /* 51 * Validate the fragment loaded into this activity. Required for apps built for API 19 and 52 * above. 53 */ isValidFragment(String fragment)54 protected boolean isValidFragment(String fragment) { 55 return PrefsOneFragment.class.getName().equals(fragment) 56 || PrefsTwoFragment.class.getName().equals(fragment) 57 || PrefsOneFragmentInner.class.getName().equals(fragment); 58 } 59 60 /** 61 * Populate the activity with the top-level headers. 62 */ 63 @Override onBuildHeaders(List<Header> target)64 public void onBuildHeaders(List<Header> target) { 65 loadedHeaders = target; 66 loadHeadersFromResource(R.xml.preference_headers, target); 67 } 68 69 public static class PrefsOneFragment extends PreferenceFragment { 70 @Override onCreate(Bundle savedInstanceState)71 public void onCreate(Bundle savedInstanceState) { 72 super.onCreate(savedInstanceState); 73 addPreferencesFromResource(R.xml.preferences); 74 } 75 } 76 77 public static class PrefsTwoFragment extends PreferenceFragment { 78 @Override onCreate(Bundle savedInstanceState)79 public void onCreate(Bundle savedInstanceState) { 80 super.onCreate(savedInstanceState); 81 addPreferencesFromResource(R.xml.preferences2); 82 } 83 } 84 85 public static class PrefsOneFragmentInner extends PreferenceFragment { 86 @Override onCreate(Bundle savedInstanceState)87 public void onCreate(Bundle savedInstanceState) { 88 super.onCreate(savedInstanceState); 89 addPreferencesFromResource(R.xml.fragmented_preferences_inner); 90 } 91 } 92 } 93 94