Preference使用总结

注释:部分代码引用http://blog.csdn.net/qinjuning 单一控件： Preference// TextView 文本框 CheckPreference // CheckBox 单选框 EditTextPreference// EditText 输入文本框 ListPreference// ListView 列表框 RingtonePreference// —— 铃声 组合控件： PreferenceCategory : 类似于LinearLayou、RelativeLayout，用于组合一组Preference，使布局更具备层次感 。 PreferenceScreen : 所有Preference元素的根节点。 **android 3.0以前使用方法** 使我们的Activity继承PreferenceActivity，然后在onCreate()方法中通过 addPreferencesFromResource(R.xml.custom_preference) (我们自定义的Preference 布局)。 3.0以后已经不建议使用了 推荐使用PreferenceFragment 在onCreate()方法中 addPreferencesFromResource(R.xml.preference); 在Activity中引入Freagment 代码如下 : 在res目录下新建xml文件夹 新建preference.xml文件 <?xml version="1.0" encoding="utf-8"?> <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"> <PreferenceCategory android:key="set_local"//唯一标示 android:title="我的位置" /> <CheckBoxPreference android:defaultValue="true" android:key="apply_wireless" android:summary="使用无线网络在应用程序（例如Google地图）中查看位置"//副标题 android:title="使用无线网络"></CheckBoxPreference> <CheckBoxPreference android:key="apply_gps" android:summary="定位到街道级别（需要消耗更多的电量以及天气允许）" android:title="使用GPS"></CheckBoxPreference> <PreferenceCategory android:title="无线和网络设置"></PreferenceCategory> <CheckBoxPreference android:key="apply_fly" android:summary="禁用所有无线连接" android:title="飞行模式"></CheckBoxPreference> <CheckBoxPreference android:key="apply_internet" android:summary="禁用通过USB共享Internet连接" android:title="Internet共享"></CheckBoxPreference> <CheckBoxPreference android:key="apply_wifi" android:summary="打开Wi-Fi" android:title="Wi-Fi"></CheckBoxPreference> <Preference android:dependency="apply_wifi"//依赖wifi打开开关 android:key="wifi_setting" android:summary="设置和管理无线接入点" android:title="Wi-Fi设置"> <!-- 对应textView 点击时 自定义一个默认跳转Intent action指定隐式Intent --> <!-- action指定隐式Intent ; targetPackage和targetClass指定显示Intent--> <intent android:action="com.feixun.action.seemAction" android:targetClass="com.example.preference.SecondActivity" android:targetPackage="com.example.preference" /> </Preference> <CheckBoxPreference android:key="apply_bluetooth" android:summary="启用蓝牙" android:title="蓝牙"></CheckBoxPreference> <Preference android:dependency="apply_bluetooth" android:key="bluetooth_setting" android:summary="管理连接、设备设备名称和可检测性" android:title="蓝牙设置"></Preference> <EditTextPreference android:defaultValue="123" android:key="number_edit" android:title="输入电话号码"></EditTextPreference> <ListPreference android:dialogTitle="选择部门" android:entries="@array/ceshi1"//显示的值 android:entryValues="@array/ceshi1_value"//存储的值 以key-value形式 android:key="depart_value" android:title="部门设置"></ListPreference> <RingtonePreference android:key="ring_key" android:ringtoneType="all"//铃声类型 android:showDefault="true"//使用系统默认的铃声 android:showSilent="true"//是否静音 android:title="铃声"></RingtonePreference> </PreferenceScreen> **frengment中代码** public class SpFrengment extends PreferenceFragment implements Preference.OnPreferenceChangeListener { private CheckBoxPreference mapply_wifiPreference; //打开wifi private CheckBoxPreference mapply_internetPreference; //Internet共享 private ListPreference depart_valuePreference; //部门设置 private EditTextPreference number_editPreference; //输入电话号码 private Preference mwifi_settingPreference; //wifi设置 对应textview 设置对应的OnpreferenceClickListener private CheckBoxPreference apply_wireless; //使用无线网络 private CheckBoxPreference apply_gps; //gps private CheckBoxPreference apply_bluetooth; //蓝牙 private Preference bluetooth_setting; //蓝牙设置 private RingtonePreference ring_key; //蓝牙设置 private String oldDeptId; // 旧部门的名称 public SpFrengment() { } @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.preference); **//根据key值找到控件** mapply_wifiPreference = (CheckBoxPreference) findPreference("apply_wifi");//打开Wi-Fi mapply_internetPreference = (CheckBoxPreference) findPreference("apply_internet");//Internet共享 depart_valuePreference = (ListPreference) findPreference("depart_value");//部门 number_editPreference = (EditTextPreference) findPreference("number_edit");//输入号码 mwifi_settingPreference = (Preference) findPreference("wifi_setting");//Wi-Fi设置 apply_wireless = (CheckBoxPreference) findPreference("apply_wireless");//使用无线网络 apply_gps = (CheckBoxPreference) findPreference("apply_gps");//gps设置 apply_bluetooth = (CheckBoxPreference) findPreference("apply_bluetooth");//蓝牙 bluetooth_setting = (Preference) findPreference("bluetooth_setting");//蓝牙设置 ring_key = (RingtonePreference) findPreference("ring_key");//响铃设置 **// 设置监听器** mapply_internetPreference.setOnPreferenceChangeListener(this); mapply_internetPreference.setOnPreferenceChangeListener(this); depart_valuePreference.setOnPreferenceChangeListener(this); number_editPreference.setOnPreferenceChangeListener(this); mwifi_settingPreference.setOnPreferenceChangeListener(this); apply_wireless.setOnPreferenceChangeListener(this); apply_gps.setOnPreferenceChangeListener(this); apply_bluetooth.setOnPreferenceChangeListener(this); bluetooth_setting.setOnPreferenceChangeListener(this); ring_key.setOnPreferenceChangeListener(this); mapply_wifiPreference.setOnPreferenceChangeListener(this); **得到我们的存储Preferences值的对象，然后对其进行相应操作** SharedPreferences shp = PreferenceManager.getDefaultSharedPreferences(getActivity()); boolean apply_wifiChecked = shp.getBoolean("apply_wifi", false); } // 当Preference的值发生改变时触发该事件，true则以新值更新控件的状态，false则do noting @Override public boolean onPreferenceChange(Preference preference, Object objValue) { if (preference == mapply_wifiPreference) { Toast.makeText(getActivity(), "mapply_wifiPreference", Toast.LENGTH_SHORT).show(); } else if (preference.getKey().equals("apply_internet")) { Toast.makeText(getActivity(), "apply_internet", Toast.LENGTH_SHORT).show(); } else if (preference == mapply_internetPreference) { Toast.makeText(getActivity(), "mapply_internetPreference", Toast.LENGTH_SHORT).show(); } else if (preference.getKey().equals("wifi_setting")) { Toast.makeText(getActivity(), "wifi_setting", Toast.LENGTH_SHORT).show(); } else if (preference == depart_valuePreference) { Toast.makeText(getActivity(), "depart_valuePreference", Toast.LENGTH_SHORT).show(); } else if (preference == number_editPreference) { Toast.makeText(getActivity(), "number_editPreference", Toast.LENGTH_SHORT).show(); } else if (preference == mwifi_settingPreference) { Toast.makeText(getActivity(), "mwifi_settingPreference", Toast.LENGTH_SHORT).show(); } else if (preference == apply_wireless) {//无线网络 Toast.makeText(getActivity(), "apply_wireless", Toast.LENGTH_SHORT).show(); } else if (preference == apply_gps) { Toast.makeText(getActivity(), "apply_gps", Toast.LENGTH_SHORT).show(); } else if (preference == apply_bluetooth) { Toast.makeText(getActivity(), "apply_bluetooth", Toast.LENGTH_SHORT).show(); } else if (preference == bluetooth_setting) { Toast.makeText(getActivity(), "bluetooth_setting", Toast.LENGTH_SHORT).show(); } else if (preference == ring_key) { Toast.makeText(getActivity(), "ring_key", Toast.LENGTH_SHORT).show(); } return true; //保存更新后的值 } } **Activity中** public class SpActivity extends AppCompatActivity{ @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.layout_spactivity); getFragmentManager().beginTransaction().replace(R.id.frent,new SpFrengment()).commit(); } }