PreferenceActivity使用方法

 1 public class MainActivity extends Activity {
 2     @Override
 3     protected void onCreate(Bundle savedInstanceState) {
 4         super.onCreate(savedInstanceState);
 5         setContentView(R.layout.activity_main);
 6         
 7         findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
 8             
 9             @Override
10             public void onClick(View v) {
11                 // TODO Auto-generated method stub
12                 startActivity(new Intent(getApplicationContext(), MyPreferenceActivity.class));
13             }
14         });
15     }
16 }

 1 package com.example.preferenceactivity;
 2 
 3 import android.os.Bundle;
 4 import android.preference.CheckBoxPreference;
 5 import android.preference.EditTextPreference;
 6 import android.preference.ListPreference;
 7 import android.preference.PreferenceActivity;
 8 import android.preference.PreferenceManager;
 9 import android.widget.Toast;
10 
11 /**
12  * 1. CheckBoxPreference. 
13  * 2. ListPreference. 
14  * 3. editTextPreference.
15  * 
16  * @author dr
17  */
18 public class MyPreferenceActivity extends PreferenceActivity {
19 
20     PreferenceManager manager;
21     CheckBoxPreference checkBoxPreference;
22     ListPreference listPreference;
23     EditTextPreference editTextPreference;
24 
25     @Override
26     protected void onCreate(Bundle savedInstanceState) {
27         // TODO Auto-generated method stub
28         super.onCreate(savedInstanceState);
29 
30         addPreferencesFromResource(R.xml.mypreferenc);
31 
32         manager = getPreferenceManager();
33         checkBoxPreference = (CheckBoxPreference) manager
34                 .findPreference("checkbox");
35         Toast.makeText(getApplicationContext(),
36                 "当前的状态为:" + checkBoxPreference.isChecked(), Toast.LENGTH_SHORT)
37                 .show();
38 
39         listPreference = (ListPreference) manager.findPreference("list");
40         Toast.makeText(
41                 getApplicationContext(),
42                 listPreference.getEntry() + "的开发环境为:"
43                         + listPreference.getValue(), Toast.LENGTH_SHORT).show();
44         
45         editTextPreference = (EditTextPreference) manager
46                 .findPreference("text");
47         Toast.makeText(getApplicationContext(),
48                 "您输入的内容为:" + editTextPreference.getText(), Toast.LENGTH_SHORT)
49                 .show();
50 
51     }
52 }

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

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
 3     <CheckBoxPreference
 4         android:key="checkbox"
 5         android:title="是否开启"
 6         android:summaryOn="已经开启"
 7         android:summaryOff="已经关闭" />
 8     
 9     <ListPreference
10         android:key="list"
11         android:title="选择第一个选项"
12         android:summary="请点击选择"
13         android:entries="@array/entries"
14         android:entryValues="@array/values" />
15     
16     <EditTextPreference
17         android:key="text"
18         android:dialogTitle="请输入你的名字"
19         android:dialogMessage="有劳了"
20         android:summary="请在此输入"
21         android:title="请输入" />
22 
23 </PreferenceScreen>

在res/values，里面 mylistpreference.xml。

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <resources>
 3 
 4     <string-array name="entries">
 5         <item>Java</item>
 6         <item>Swift</item>
 7         <item>C#</item>
 8     </string-array>
 9     
10     <string-array name="values">
11         <item>Eclips</item>
12         <item>Xcode</item>
13         <item>Visual Studio</item>
14     </string-array>
15 
16 </resources>