androidrepublic_android develop

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <fragment
        android:id="@+id/fragment1"
        android:name="com.example.preferencefragment.prefe"//自己的包名和java文件
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
         />

</RelativeLayout>

package com.example.preferencefragment;

import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.PreferenceScreen;

public class prefe extends PreferenceFragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        // TODO 自动生成的方法存根
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.preferences);
        
    }

}

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >

    <PreferenceCategory android:title="In-line preferences" >
        <CheckBoxPreference
            android:key="checkbox_preference"
            android:summary="这是一个复选框"
            android:title="复选框设置" />
    </PreferenceCategory>
    <PreferenceCategory android:title="Dialog-based preferences" >
        <EditTextPreference
            android:dialogTitle="请输入你最喜欢的种族"
            android:key="edittext_preference"
            android:summary="一个使用了编辑文本对话框的例子"
            android:title="请输入你最喜欢的种族" />

        <ListPreference
            android:dialogTitle="请选择一项"
            android:entries="@array/cities"
            android:entryValues="@array/cities"
            android:key="list_preferenc"
            android:summary="一个使用了列表对话框的例子"
            android:title="请选择一项" />
    </PreferenceCategory>
    <PreferenceCategory android:title="Launch preferences" > 
        <!-- This PreferenceScreen tag serves as a screen break (similar to page break in word processing). Like for other preference types, we assign a key here so it is able to save and restore its instance state. -->
        <PreferenceScreen
            android:key="screen_preference"
            android:summary="展示另一个首选项配置页面"
            android:title="页面首选项" > 
            <!-- 你可以在这里放置更多的首选项内容，将被在下一个页面呈现出来 -->
            <CheckBoxPreference
                android:key="next_screen_checkbox_preference"
                android:summary="在另一个页面展示但出于同一个层级的首选项配置"
                android:title="复选框设置" />
        </PreferenceScreen>
        <PreferenceScreen
            android:summary="从一个意图中启动一个activity"
            android:title="意图首选项" >
            <intent
                android:action="android.intent.action.VIEW"
                android:data="http://www.baidu.com" />
        </PreferenceScreen>
    </PreferenceCategory>
    <PreferenceCategory android:title="Preference attributes" >
        <CheckBoxPreference
            android:key="parent_checkbox_preference"
            android:summary="这是一个可见的父类"
            android:title="父类复选框首选项" />
        <!-- 子类的可见类型是由样式属性定义的 -->
        <CheckBoxPreference
            android:dependency="parent_checkbox_preference"
            android:key="child_checkbox_preference"
            android:layout="?android:attr/preferenceLayoutChild"
            android:summary="这是一个可见的子类"
            android:title="子类复选框首选项" />
    </PreferenceCategory>

</PreferenceScreen>

package com.example.preferencefragment;

import android.os.Bundle;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.app.Activity;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.SharedPreferences;
import android.view.Menu;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO 自动生成的方法存根
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //加载PrefFragment
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction transaction = fragmentManager.beginTransaction();
        prefe prefFragment = new prefe();
        transaction.add(R.id.fragment1, prefFragment);
        transaction.commit();
        
        //SharedPreferences sp=PreferenceManager.getDefaultSharedPreferences(this);
        //String name=sp.getString("key", "");
    }
}