PreferenceActivity使用方法

         

 public class MainActivity extends Activity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {

             @Override
             public void onClick(View v) {
                 // TODO Auto-generated method stub
                 startActivity(new Intent(getApplicationContext(), MyPreferenceActivity.class));
             }
         });
     }
 }

 package com.example.preferenceactivity;

 import android.os.Bundle;
 import android.preference.CheckBoxPreference;
 import android.preference.EditTextPreference;
 import android.preference.ListPreference;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceManager;
 import android.widget.Toast;

 /**
  * 1. CheckBoxPreference.
  * 2. ListPreference.
  * 3. editTextPreference.
  *
  * @author dr
  */
 public class MyPreferenceActivity extends PreferenceActivity {

     PreferenceManager manager;
     CheckBoxPreference checkBoxPreference;
     ListPreference listPreference;
     EditTextPreference editTextPreference;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         // TODO Auto-generated method stub
         super.onCreate(savedInstanceState);

         addPreferencesFromResource(R.xml.mypreferenc);

         manager = getPreferenceManager();
         checkBoxPreference = (CheckBoxPreference) manager
                 .findPreference("checkbox");
         Toast.makeText(getApplicationContext(),
                 "当前的状态为:" + checkBoxPreference.isChecked(), Toast.LENGTH_SHORT)
                 .show();

         listPreference = (ListPreference) manager.findPreference("list");
         Toast.makeText(
                 getApplicationContext(),
                 listPreference.getEntry() + "的开发环境为:"
                         + listPreference.getValue(), Toast.LENGTH_SHORT).show();

         editTextPreference = (EditTextPreference) manager
                 .findPreference("text");
         Toast.makeText(getApplicationContext(),
                 "您输入的内容为:" + editTextPreference.getText(), Toast.LENGTH_SHORT)
                 .show();

     }
 }

在res目录下面，新建一个xml文件，里面 mypreferenc.xml。

 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
     <CheckBoxPreference
         android:key="checkbox"
         android:title="是否开启"
         android:summaryOn="已经开启"
         android:summaryOff="已经关闭" />

     <ListPreference
         android:key="list"
         android:title="选择第一个选项"
         android:summary="请点击选择"
         android:entries="@array/entries"
         android:entryValues="@array/values" />

     <EditTextPreference
         android:key="text"
         android:dialogTitle="请输入你的名字"
         android:dialogMessage="有劳了"
         android:summary="请在此输入"
         android:title="请输入" />

 </PreferenceScreen>

在res/values，里面 mylistpreference.xml。

 <?xml version="1.0" encoding="utf-8"?>
 <resources>

     <string-array name="entries">
         <item>Java</item>
         <item>Swift</item>
         <item>C#</item>
     </string-array>

     <string-array name="values">
         <item>Eclips</item>
         <item>Xcode</item>
         <item>Visual Studio</item>
     </string-array>

 </resources>