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 android.content.Intent; 20 import android.content.res.TypedArray; 21 import android.net.Uri; 22 import android.os.Bundle; 23 import android.preference.CheckBoxPreference; 24 import android.preference.EditTextPreference; 25 import android.preference.ListPreference; 26 import android.preference.PreferenceActivity; 27 import android.preference.PreferenceCategory; 28 import android.preference.PreferenceScreen; 29 30 import com.example.android.apis.R; 31 32 public class PreferencesFromCode extends PreferenceActivity { 33 34 @Override onCreate(Bundle savedInstanceState)35 protected void onCreate(Bundle savedInstanceState) { 36 super.onCreate(savedInstanceState); 37 38 setPreferenceScreen(createPreferenceHierarchy()); 39 } 40 createPreferenceHierarchy()41 private PreferenceScreen createPreferenceHierarchy() { 42 // Root 43 PreferenceScreen root = getPreferenceManager().createPreferenceScreen(this); 44 45 // Inline preferences 46 PreferenceCategory inlinePrefCat = new PreferenceCategory(this); 47 inlinePrefCat.setTitle(R.string.inline_preferences); 48 root.addPreference(inlinePrefCat); 49 50 // Toggle preference 51 CheckBoxPreference togglePref = new CheckBoxPreference(this); 52 togglePref.setKey("toggle_preference"); 53 togglePref.setTitle(R.string.title_toggle_preference); 54 togglePref.setSummary(R.string.summary_toggle_preference); 55 inlinePrefCat.addPreference(togglePref); 56 57 // Dialog based preferences 58 PreferenceCategory dialogBasedPrefCat = new PreferenceCategory(this); 59 dialogBasedPrefCat.setTitle(R.string.dialog_based_preferences); 60 root.addPreference(dialogBasedPrefCat); 61 62 // Edit text preference 63 EditTextPreference editTextPref = new EditTextPreference(this); 64 editTextPref.setDialogTitle(R.string.dialog_title_edittext_preference); 65 editTextPref.setKey("edittext_preference"); 66 editTextPref.setTitle(R.string.title_edittext_preference); 67 editTextPref.setSummary(R.string.summary_edittext_preference); 68 dialogBasedPrefCat.addPreference(editTextPref); 69 70 // List preference 71 ListPreference listPref = new ListPreference(this); 72 listPref.setEntries(R.array.entries_list_preference); 73 listPref.setEntryValues(R.array.entryvalues_list_preference); 74 listPref.setDialogTitle(R.string.dialog_title_list_preference); 75 listPref.setKey("list_preference"); 76 listPref.setTitle(R.string.title_list_preference); 77 listPref.setSummary(R.string.summary_list_preference); 78 dialogBasedPrefCat.addPreference(listPref); 79 80 // Launch preferences 81 PreferenceCategory launchPrefCat = new PreferenceCategory(this); 82 launchPrefCat.setTitle(R.string.launch_preferences); 83 root.addPreference(launchPrefCat); 84 85 /* 86 * The Preferences screenPref serves as a screen break (similar to page 87 * break in word processing). Like for other preference types, we assign 88 * a key here so that it is able to save and restore its instance state. 89 */ 90 // Screen preference 91 PreferenceScreen screenPref = getPreferenceManager().createPreferenceScreen(this); 92 screenPref.setKey("screen_preference"); 93 screenPref.setTitle(R.string.title_screen_preference); 94 screenPref.setSummary(R.string.summary_screen_preference); 95 launchPrefCat.addPreference(screenPref); 96 97 /* 98 * You can add more preferences to screenPref that will be shown on the 99 * next screen. 100 */ 101 102 // Example of next screen toggle preference 103 CheckBoxPreference nextScreenCheckBoxPref = new CheckBoxPreference(this); 104 nextScreenCheckBoxPref.setKey("next_screen_toggle_preference"); 105 nextScreenCheckBoxPref.setTitle(R.string.title_next_screen_toggle_preference); 106 nextScreenCheckBoxPref.setSummary(R.string.summary_next_screen_toggle_preference); 107 screenPref.addPreference(nextScreenCheckBoxPref); 108 109 // Intent preference 110 PreferenceScreen intentPref = getPreferenceManager().createPreferenceScreen(this); 111 intentPref.setIntent(new Intent().setAction(Intent.ACTION_VIEW) 112 .setData(Uri.parse("http://www.android.com"))); 113 intentPref.setTitle(R.string.title_intent_preference); 114 intentPref.setSummary(R.string.summary_intent_preference); 115 launchPrefCat.addPreference(intentPref); 116 117 // Preference attributes 118 PreferenceCategory prefAttrsCat = new PreferenceCategory(this); 119 prefAttrsCat.setTitle(R.string.preference_attributes); 120 root.addPreference(prefAttrsCat); 121 122 // Visual parent toggle preference 123 CheckBoxPreference parentCheckBoxPref = new CheckBoxPreference(this); 124 parentCheckBoxPref.setTitle(R.string.title_parent_preference); 125 parentCheckBoxPref.setSummary(R.string.summary_parent_preference); 126 prefAttrsCat.addPreference(parentCheckBoxPref); 127 128 // Visual child toggle preference 129 // See res/values/attrs.xml for the <declare-styleable> that defines 130 // TogglePrefAttrs. 131 TypedArray a = obtainStyledAttributes(R.styleable.TogglePrefAttrs); 132 CheckBoxPreference childCheckBoxPref = new CheckBoxPreference(this); 133 childCheckBoxPref.setTitle(R.string.title_child_preference); 134 childCheckBoxPref.setSummary(R.string.summary_child_preference); 135 childCheckBoxPref.setLayoutResource( 136 a.getResourceId(R.styleable.TogglePrefAttrs_android_preferenceLayoutChild, 137 0)); 138 prefAttrsCat.addPreference(childCheckBoxPref); 139 a.recycle(); 140 141 return root; 142 } 143 } 144