安卓系統設定選項的架構。，安卓系統設定架構

安卓系統設定選項的架構。，安卓系統設定架構

首先在res檔案中建立一個xml檔案夾，建立preference.xml檔案，然後寫布局：

 1 <?xml version="1.0" encoding="utf-8"?> 2 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" > 3  4     <PreferenceCategory android:title="系統資訊" > 5         <EditTextPreference 6             android:defaultValue="機主姓名" 7             android:icon="@drawable/ic_launcher" 8             android:key="edit_text_key_1" 9             android:summary="木子小新"10             android:title="機主姓名" />11 12         <ListPreference13             android:dialogIcon="@drawable/ic_launcher"14             android:dialogTitle="城市區號"15             android:entries="@array/city"16             android:entryValues="@array/city_quhao"17             android:icon="@drawable/ic_launcher"18             android:key="listpreference"19             android:title="區號" />20     </PreferenceCategory>21     <PreferenceCategory android:title="系統設定" >22         <Preference23             android:icon="@drawable/bokeyuan"24             android:summary="http://www.cnblogs.com/labixiaoxin/"25             android:title="機主部落格" >26             <intent27                 android:action="android.intent.action.VIEW"28                 android:data="http://www.cnblogs.com/labixiaoxin/" />29         </Preference>30 31         <SwitchPreference32             android:icon="@drawable/wifi"33             android:key="wifi"34             android:title="wifi開關" />35         <SwitchPreference36             android:icon="@drawable/lanya"37             android:key="lanya"38             android:title="藍芽開關" />39 40         <CheckBoxPreference41             android:defaultValue="true"42             android:icon="@drawable/xuanzhuahn"43             android:key="checkbox_key_xuanzhuan"44             android:title="旋轉" />45 46         <RingtonePreference47             android:icon="@drawable/ring"48             android:key="ring"49             android:title="鈴聲" />50     </PreferenceCategory>51 52     <PreferenceScreen53         android:icon="@drawable/ic_launcher"54         android:key="preference_screen_2_key"55         android:persistent="false"56         android:title="其他設定" >57         <CheckBoxPreference58             android:defaultValue="true"59             android:icon="@drawable/ic_launcher"60             android:key="checkbox_key_wangluo"61             android:summary="網路已經開啟"62             android:title="網路" />63     </PreferenceScreen>64 65 </PreferenceScreen>

從主Acitivity中載入SettingFragment：

 1 package com.lixu.android_set; 2  3 import android.app.Activity; 4 import android.app.FragmentManager; 5 import android.app.FragmentTransaction; 6 import android.os.Bundle; 7  8 public class MainActivity extends Activity { 9 10     @Override11     protected void onCreate(Bundle savedInstanceState) {12         super.onCreate(savedInstanceState);13         // 建立Fragment管理器14         FragmentManager fm = this.getFragmentManager();15         FragmentTransaction ft = fm.beginTransaction();16         // 將原有的Activity替換成Fragment。也可以添加到原有之上不覆蓋 如：ft.add(R.id.rel, new17         // Fragment()) ;如果添加的多了會比較耗資源。18         ft.replace(android.R.id.content, new SettingFragment());19         // 提交20         ft.commit();21 22     }23 }

  1 package com.lixu.android_set;  2   3 import android.content.SharedPreferences;  4 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;  5 import android.os.Bundle;  6 import android.preference.CheckBoxPreference;  7 import android.preference.EditTextPreference;  8 import android.preference.ListPreference;  9 import android.preference.PreferenceFragment; 10 import android.preference.PreferenceManager; 11 import android.preference.SwitchPreference; 12  13 //安卓官方申明在3.0版本後最好不要用FragmentActivity 應該用PreferenceFragment，在從主Activity中調用。 14 public class SettingFragment extends PreferenceFragment { 15  16     private MyListener mMyListener = new MyListener(); 17     private EditTextPreference mEditTextPreference; 18     private ListPreference mListPreference; 19     private CheckBoxPreference mCheckBoxPreference; 20     private SwitchPreference mSwitchPreference1; 21     private SwitchPreference mSwitchPreference2; 22  23     @Override 24     public void onCreate(Bundle savedInstanceState) { 25         super.onCreate(savedInstanceState); 26         // 讀取值的通用方法 27         SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(getActivity()); 28  29         // 添加設定選項 30         addPreferencesFromResource(R.xml.preferences); 31         // 找到各個控制項按鈕 32         mEditTextPreference = (EditTextPreference) findPreference("edit_text_key_1"); 33  34         mListPreference = (ListPreference) findPreference("listpreference"); 35  36         mCheckBoxPreference = (CheckBoxPreference) findPreference("checkbox_key_xuanzhuan"); 37  38         mSwitchPreference1 = (SwitchPreference) findPreference("wifi"); 39         mSwitchPreference2 = (SwitchPreference) findPreference("lanya"); 40         // 根據實際情況設定提示框的初始狀態 41         boolean s1 = sharedpreferences.getBoolean("wifi", false); 42         if (!s1) 43             mSwitchPreference1.setSummary("wifi關閉"); 44         else if (s1) 45             mSwitchPreference1.setSummary("wifi開啟"); 46  47         boolean s2 = sharedpreferences.getBoolean("lanya", false); 48         if (!s2) 49             mSwitchPreference2.setSummary("藍芽關閉"); 50         else if (s2) 51             mSwitchPreference2.setSummary("藍芽開啟"); 52  53         boolean s = sharedpreferences.getBoolean("checkbox_key_xuanzhuan", false); 54         if (!s) 55             mCheckBoxPreference.setSummary("旋轉關閉"); 56         else if (s) 57             mCheckBoxPreference.setSummary("旋轉開啟"); 58  59         // 添加項目資料發生變化時候的監聽 60         sharedpreferences.unregisterOnSharedPreferenceChangeListener(mMyListener); 61     } 62  63     // 程式暫停時取消註冊監聽事件，使得代碼更加完整。 64     @Override 65     public void onPause() { 66         super.onPause(); 67         getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(mMyListener); 68     } 69  70     // 程式運行時註冊 71     @Override 72     public void onResume() { 73         super.onResume(); 74         getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(mMyListener); 75     } 76  77     private class MyListener implements OnSharedPreferenceChangeListener { 78  79         @Override 80         public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { 81  82             switch (key) { 83             case "edit_text_key_1": 84                 String str1 = sharedPreferences.getString("edit_text_key_1", "null"); 85                 mEditTextPreference.setSummary(str1); 86  87                 break; 88             case "listpreference": 89                 String city = mListPreference.getValue(); 90                 String city_num = mListPreference.getEntry() + ""; 91                 mListPreference.setSummary(city + " " + city_num); 92  93                 break; 94             case "checkbox_key_xuanzhuan": 95                 boolean s = sharedPreferences.getBoolean("checkbox_key_xuanzhuan", false); 96                 if (!s) 97                     mCheckBoxPreference.setSummary("旋轉關閉"); 98                 else if (s) 99                     mCheckBoxPreference.setSummary("旋轉開啟");100 101                 break;102             case "wifi":103                 boolean s1 = sharedPreferences.getBoolean("wifi", false);104                 if (!s1)105                     mSwitchPreference1.setSummary("wifi關閉");106                 else if (s1)107                     mSwitchPreference1.setSummary("wifi開啟");108 109                 break;110             case "lanya":111 112                 boolean s2 = sharedPreferences.getBoolean("lanya", false);113                 if (!s2)114                     mSwitchPreference2.setSummary("藍芽關閉");115                 else if (s2)116                     mSwitchPreference2.setSummary("藍芽開啟");117 118                 break;119 120             default:121                 break;122             }123         }124     }125 126 }

 1 <?xml version="1.0" encoding="utf-8"?> 2 <resources> 3  4     <string-array name="city"> 5         <item>成都</item> 6         <item>北京</item> 7         <item>上海</item> 8     </string-array> 9     <string-array name="city_quhao">10         <item>028</item>11         <item>010</item>12         <item>021</item>13     </string-array>14 15 </resources>

運行：