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>