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.R; 20 21 import android.content.Intent; 22 import android.content.res.TypedArray; 23 import android.net.Uri; 24 import android.os.Bundle; 25 import android.preference.CheckBoxPreference; 26 import android.preference.EditTextPreference; 27 import android.preference.ListPreference; 28 import android.preference.PreferenceActivity; 29 import android.preference.PreferenceCategory; 30 import android.preference.PreferenceScreen; 31 import android.preference.SwitchPreference; 32 33 public class PreferencesFromCode extends PreferenceActivity { 34 35 @Override onCreate(Bundle savedInstanceState)36 protected void onCreate(Bundle savedInstanceState) { 37 super.onCreate(savedInstanceState); 38 39 setPreferenceScreen(createPreferenceHierarchy()); 40 } 41 createPreferenceHierarchy()42 private PreferenceScreen createPreferenceHierarchy() { 43 // Root 44 PreferenceScreen root = getPreferenceManager().createPreferenceScreen(this); 45 46 // Inline preferences 47 PreferenceCategory inlinePrefCat = new PreferenceCategory(this); 48 inlinePrefCat.setTitle(R.string.inline_preferences); 49 root.addPreference(inlinePrefCat); 50 51 // Checkbox preference 52 CheckBoxPreference checkboxPref = new CheckBoxPreference(this); 53 checkboxPref.setKey("checkbox_preference"); 54 checkboxPref.setTitle(R.string.title_checkbox_preference); 55 checkboxPref.setSummary(R.string.summary_checkbox_preference); 56 inlinePrefCat.addPreference(checkboxPref); 57 58 // Switch preference 59 SwitchPreference switchPref = new SwitchPreference(this); 60 switchPref.setKey("switch_preference"); 61 switchPref.setTitle(R.string.title_switch_preference); 62 switchPref.setSummary(R.string.summary_switch_preference); 63 inlinePrefCat.addPreference(switchPref); 64 65 // Dialog based preferences 66 PreferenceCategory dialogBasedPrefCat = new PreferenceCategory(this); 67 dialogBasedPrefCat.setTitle(R.string.dialog_based_preferences); 68 root.addPreference(dialogBasedPrefCat); 69 70 // Edit text preference 71 EditTextPreference editTextPref = new EditTextPreference(this); 72 editTextPref.setDialogTitle(R.string.dialog_title_edittext_preference); 73 editTextPref.setKey("edittext_preference"); 74 editTextPref.setTitle(R.string.title_edittext_preference); 75 editTextPref.setSummary(R.string.summary_edittext_preference); 76 dialogBasedPrefCat.addPreference(editTextPref); 77 78 // List preference 79 ListPreference listPref = new ListPreference(this); 80 listPref.setEntries(R.array.entries_list_preference); 81 listPref.setEntryValues(R.array.entryvalues_list_preference); 82 listPref.setDialogTitle(R.string.dialog_title_list_preference); 83 listPref.setKey("list_preference"); 84 listPref.setTitle(R.string.title_list_preference); 85 listPref.setSummary(R.string.summary_list_preference); 86 dialogBasedPrefCat.addPreference(listPref); 87 88 // Launch preferences 89 PreferenceCategory launchPrefCat = new PreferenceCategory(this); 90 launchPrefCat.setTitle(R.string.launch_preferences); 91 root.addPreference(launchPrefCat); 92 93 /* 94 * The Preferences screenPref serves as a screen break (similar to page 95 * break in word processing). Like for other preference types, we assign 96 * a key here so that it is able to save and restore its instance state. 97 */ 98 // Screen preference 99 PreferenceScreen screenPref = getPreferenceManager().createPreferenceScreen(this); 100 screenPref.setKey("screen_preference"); 101 screenPref.setTitle(R.string.title_screen_preference); 102 screenPref.setSummary(R.string.summary_screen_preference); 103 launchPrefCat.addPreference(screenPref); 104 105 /* 106 * You can add more preferences to screenPref that will be shown on the 107 * next screen. 108 */ 109 110 // Example of next screen toggle preference 111 CheckBoxPreference nextScreenCheckBoxPref = new CheckBoxPreference(this); 112 nextScreenCheckBoxPref.setKey("next_screen_toggle_preference"); 113 nextScreenCheckBoxPref.setTitle(R.string.title_next_screen_toggle_preference); 114 nextScreenCheckBoxPref.setSummary(R.string.summary_next_screen_toggle_preference); 115 screenPref.addPreference(nextScreenCheckBoxPref); 116 117 // Intent preference 118 PreferenceScreen intentPref = getPreferenceManager().createPreferenceScreen(this); 119 intentPref.setIntent(new Intent().setAction(Intent.ACTION_VIEW) 120 .setData(Uri.parse("http://www.android.com"))); 121 intentPref.setTitle(R.string.title_intent_preference); 122 intentPref.setSummary(R.string.summary_intent_preference); 123 launchPrefCat.addPreference(intentPref); 124 125 // Preference attributes 126 PreferenceCategory prefAttrsCat = new PreferenceCategory(this); 127 prefAttrsCat.setTitle(R.string.preference_attributes); 128 root.addPreference(prefAttrsCat); 129 130 // Visual parent toggle preference 131 CheckBoxPreference parentCheckBoxPref = new CheckBoxPreference(this); 132 parentCheckBoxPref.setTitle(R.string.title_parent_preference); 133 parentCheckBoxPref.setSummary(R.string.summary_parent_preference); 134 prefAttrsCat.addPreference(parentCheckBoxPref); 135 136 // Visual child toggle preference 137 // See res/values/attrs.xml for the <declare-styleable> that defines 138 // TogglePrefAttrs. 139 TypedArray a = obtainStyledAttributes(R.styleable.TogglePrefAttrs); 140 CheckBoxPreference childCheckBoxPref = new CheckBoxPreference(this); 141 childCheckBoxPref.setTitle(R.string.title_child_preference); 142 childCheckBoxPref.setSummary(R.string.summary_child_preference); 143 childCheckBoxPref.setLayoutResource( 144 a.getResourceId(R.styleable.TogglePrefAttrs_android_preferenceLayoutChild, 145 0)); 146 prefAttrsCat.addPreference(childCheckBoxPref); 147 a.recycle(); 148 149 return root; 150 } 151 } 152