Android---PreferenceManager（偏好设置）

一，PreferenceManager详情

这里使用的是SharedPreference的轻量级存储方式

二，读取

1，创建xml目录

2,创建默认配置文件

代码：

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <PreferenceCategory
        android:title="@string/perference_title">

        <!--判断选中-->
        <CheckBoxPreference
            android:key = "silent_mode"
            android:defaultValue="false"
            android:title="Silent Mode"
            android:summary="Mute all sounds from this app" />

        <!--选择-->
        <SwitchPreference
            android:key="awesome_mode"
            android:defaultValue="false"
            android:switchTextOn="Yes"
            android:switchTextOff="No"
            android:title="Awesome mode™"
            android:summary="Enable the Awesome Mode™ feature"/>

        <!--输入保存-->
        <EditTextPreference
            android:key="custom_storage"
            android:defaultValue="/sdcard/data/"
            android:title="Custom storage location"
            android:summary="Enter the directory path where you want data to be saved. If it does not exist, it will be created."
            android:dialogTitle="Enter directory path (eg. /sdcard/data/ )"/>

    </PreferenceCategory>

</PreferenceScreen>

调用方法

public class CameraActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_camera);
        //获取配置值
        PreferenceManager.setDefaultValues(this , R.xml.preference , false);
         SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
         boolean silentMode = preferences.getBoolean("silent_mode" , false);
         boolean awesomeMode = preferences.getBoolean("awesome_mode", false);
         String string = preferences.getString("custom_storage", "");

    }

    /**
     * 跳转配置页面
     * @param view
     */
    public void onSetting(View view){
        this.getFragmentManager().beginTransaction()
                .replace(android.R.id.content, new SettingFragment())
                .commit();
    }

}

配置页面

/**
 *配置页面
 */
public class SettingFragment extends PreferenceFragment {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.addPreferencesFromResource(R.xml.preference);
    }




}

显示如下图