android 设置类PreferenceActivity

       PreferenceActivity是android提供的对系统信息和配置进行自动保存的Activity,它通过SharedPreference方式将信息保存在XML 文件当中。使用PreferenceActivity不需要我们对SharedPreference进行信息保存读取操作，系统会自动对Activity 的各种View上的改变进行保存（）。

    可以自己实现一个，但是那样又会使Activity中的逻辑代码和xml布局文件过于复杂，远远不及PreferenceActivity来的方便快捷。

     用他来自定义设置，省去了我们通过对SharedPreference设置的保存读取，很方便。PreferenceActivity在每次退出后都会自动记录下当前页面的设置，下次启动时会自动加载

这是根据hack004修改来的

一、效果图：

二、部分自定义实现类

自定义Prefeference

 把view的点击事件传递给ImagePreference

package com.manning.androidhacks.hack004.preference;import com.manning.androidhacks.hack004.R;import android.content.Context;import android.preference.Preference;import android.view.View;import android.view.View.OnClickListener;import android.widget.ImageView;public class ImagePreference extends Preference {private ImageView iv_perference_icon;private int _id;// 声明监听器private OnClickListener mOnClickListener;public ImagePreference(Context context, int id) {super(context);// TODO Auto-generated constructor stubthis._id = id;setLayoutResource(R.layout.preference_list_item_layout);}@Overrideprotected void onBindView(View view) {// TODO Auto-generated method stubsuper.onBindView(view);if (iv_perference_icon == null) {iv_perference_icon = (ImageView) view.findViewById(R.id.iv_perference_icon);iv_perference_icon.setImageResource(_id);view.setClickable(true);view.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View view) {if (mOnClickListener != null)// 把view的点击事件传递给ImagePreferencemOnClickListener.onClick(view);elsereturn;}});}}// 设置ImagePreference的监听方法public void setOnClickListener(OnClickListener mOnClickListener) {this.mOnClickListener = mOnClickListener;}}

三、主类;

import com.manning.androidhacks.hack004.preference.ImagePreference;import android.content.Intent;import android.content.SharedPreferences;import android.content.SharedPreferences.OnSharedPreferenceChangeListener;import android.net.Uri;import android.os.Bundle;import android.preference.EditTextPreference;import android.preference.Preference;import android.preference.PreferenceActivity;import android.view.View;import android.view.View.OnClickListener;import android.widget.Toast;//MainActivit继承PreferenceActivity，其是ListActivity的子类public class MainActivity extends PreferenceActivity implements OnSharedPreferenceChangeListener {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);//设置背景this.getListView().setBackgroundResource(R.drawable.backgroud);addPreferencesFromResource(R.xml.prefs);initImagePreference();Preference sharePref = findPreference("pref_share");Intent shareIntent = new Intent();shareIntent.setAction(Intent.ACTION_SEND);shareIntent.setType("text/plain");shareIntent.putExtra(Intent.EXTRA_SUBJECT, "Check this app!");shareIntent.putExtra(Intent.EXTRA_TEXT, "Check this awesome app at: ...");sharePref.setIntent(shareIntent);Preference ratePref = findPreference("pref_rate");Uri uri = Uri.parse("market://details?id=" + getPackageName());Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri);ratePref.setIntent(goToMarket);updateUserText();}private void initImagePreference() {getPreferenceScreen().setOrderingAsAdded(true);ImagePreference pre_update = new ImagePreference(this, R.drawable.update);// pre_update.setKey(Intents.KEY_UPDATE);pre_update.setTitle("更新");pre_update.setOrder(4);pre_update.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub// You can do something here when somebady click this view.Toast.makeText(MainActivity.this, "版本升级", 1).show();}});getPreferenceScreen().addPreference(pre_update);}@Overrideprotected void onResume() {super.onResume();getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);}@Overrideprotected void onPause() {super.onPause();getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);}@Overridepublic void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {if (key.equals("pref_username")) {updateUserText();}}private void updateUserText() {EditTextPreference pref;pref = (EditTextPreference) findPreference("pref_username");String user = pref.getText();if (user == null) {user = "请填写你的用户名";}pref.setSummary(String.format("Username: %s", user));}}

五、布局文件：

<?xml version="1.0" encoding="utf-8"?><PreferenceScreen    xmlns:android="http://schemas.android.com/apk/res/android"    android:key="pref_first_preferencescreen_key"       android:title="设置界面">    <PreferenceCategory        android:title="User">        <EditTextPreference            android:key="pref_username"            android:summary="Username:"            android:title="用户名"/>    </PreferenceCategory>    <PreferenceCategory        android:title="Application">        <Preference            android:key="pref_rate"            android:summary="Rate the app in the store!"            android:title="在市场下载率"/>        <Preference            android:key="pref_share"            android:summary="Share the app with your friends"            android:title="分享"/>        <com.manning.androidhacks.hack004.preference.EmailDialog            android:dialogIcon="@drawable/ic_launcher"            android:dialogTitle="Send Feedback"            android:dialogMessage="Do you want to send an email with feedback?"            android:key="pref_sendemail_key"            android:negativeButtonText="Cancel"            android:positiveButtonText="OK"            android:summary="Send your feedback by e-mail"            android:title="发送邮件"/>        <com.manning.androidhacks.hack004.preference.AboutDialog            android:dialogIcon="@drawable/ic_launcher"            android:dialogTitle="About"            android:key="pref_about_key"            android:negativeButtonText="@null"            android:title="关于"/>    </PreferenceCategory></PreferenceScreen>

AboutDialog，EmailDialog为自定义控件

六、源码：

http://download.csdn.net/detail/xiaobijia/8197103