prefernce的使用具体使用

<span style="font-size:18px;">package com.example.testpreference;

import java.util.Iterator;
import java.util.Set;

import android.annotation.SuppressLint;
import android.app.Dialog;
import android.content.ComponentName;
import android.content.Intent;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.EditTextPreference;
import android.preference.ListPreference;
import android.preference.MultiSelectListPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.preference.SwitchPreference;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;

public class MainActivity extends PreferenceActivity implements OnPreferenceClickListener , OnPreferenceChangeListener{
	private static final String TAG = null;

	Intent intentTest;
	EditTextPreference editTextPreference ;
	ListPreference listPreference ;
	MultiSelectListPreference multiSelectListPreference;
	CheckBoxPreference boxPreference;
	SwitchPreference preference;

	@SuppressWarnings("deprecation")
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		addPreferencesFromResource(R.xml.text_preference);
		ComponentName componentName = new ComponentName("com.yunos.osupdate",
				"com.yunos.osupdate.front.UpdateActivity11");
		intentTest = new Intent();
		intentTest.setComponent(componentName);
		findPreference();
	}

	@SuppressLint("NewApi")
	@SuppressWarnings("deprecation")
	private void findPreference() {
		editTextPreference = (EditTextPreference) findPreference("edit0");
		if (null != editTextPreference){
			editTextPreference.setOnPreferenceClickListener(this);
			editTextPreference.setOnPreferenceChangeListener(this);
		}

		listPreference = (ListPreference) findPreference("ListPreference");
		if (null != listPreference){
			listPreference.setOnPreferenceClickListener(this);
			listPreference.setOnPreferenceChangeListener(this);
		}

		multiSelectListPreference = (MultiSelectListPreference) findPreference("MultiSelectListPreferencekey");
		if (null != multiSelectListPreference){
			multiSelectListPreference.setOnPreferenceClickListener(this);
			multiSelectListPreference.setOnPreferenceChangeListener(this);
		}

		boxPreference = (CheckBoxPreference) findPreference("CheckBoxPreferenceKey");
		if (null != boxPreference){
			boxPreference.setOnPreferenceClickListener(this);
			boxPreference.setOnPreferenceChangeListener(this);
		}
	}

	@Override
	public boolean onPreferenceClick(Preference preference) {
		String key = preference.getKey();
		if (key.equals("edit0")){
			String contect = ((EditTextPreference)preference).getText();
			Log.i(TAG , "contect = " + contect);
		}else if (key.equals("ListPreference")){
			String entry = (String) listPreference.getEntry();
			String value = (String) listPreference.getValue();
			Log.i(TAG, "entry = " + entry + " value = " + value);
		}else if (key.equals("MultiSelectListPreferencekey")){
			<span style="color:#cc0000;">Set<String> temp = ((MultiSelectListPreference)preference).getValues();
			Iterator<String>  iterator = temp.iterator();
			while(iterator.hasNext()){
				String item = iterator.next();
				Log.i(TAG , "  valuse : " + item);
			}</span>
		}
		return false;
	}

	@Override
	public boolean onPreferenceChange(Preference preference, Object newValue) {
		String key = preference.getKey();
		if (key.equals("edit0")){
			String  temp = (String) newValue;
			((EditTextPreference)preference).setText(temp);
			Log.i(TAG , "onPreferenceChange newValue = " + temp);
		}else if (key.equals("ListPreference")){
			String  temp = (String) newValue;
			((ListPreference)preference).setValue(temp);
			Log.i(TAG , "onPreferenceChange newValue = " + temp);
		}else if (key.equals("MultiSelectListPreferencekey")){
			<span style="color:#990000;">Set<String>  temp = (Set<String>) newValue;

			Iterator<String>  iterator = temp.iterator();
			while(iterator.hasNext()){
				String item = iterator.next();
				Log.i(TAG , "newValue  " + item);
			}</span>

			((MultiSelectListPreference)preference).setValues(temp);
		}

		return false;
	}

}
</span>

<span style="font-size:18px;">XMl ：</span>

<span style="font-size:18px;"></span>

<span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >

    <PreferenceCategory android:title="DialogPreference" >
        <EditTextPreference
            android:key="edit0"
            android:summary="EditTextPreference summary"
            android:title="EditTextPreference" />

        <ListPreference
            android:entries="@array/myentry"
            android:entryValues="@array/myentryvalues"
            android:key="ListPreference"
            android:summary="ListPreference summary"
            android:title="ListPreference" />

        <MultiSelectListPreference
            android:entries="@array/myentry"
            android:entryValues="@array/myentryvalues"
            android:key="MultiSelectListPreferencekey"
            android:summary="MultiSelectListPreference summary"
            android:title="MultiSelectListPreference" />
    </PreferenceCategory>
    <PreferenceCategory android:title="RingtonePreference" >
        <RingtonePreference
            android:key="RingtonePreferencekey"
            android:summary="RingtonePreference "
            android:title="RingtonePreference" />
    </PreferenceCategory>
    <PreferenceCategory android:title="TwoStatePreference" >
        <SwitchPreference
            android:key="SwitchPreferencekey"
            android:summary="SwitchPreference  summary"
            android:summaryOff="SwitchPreference summaryOff"
            android:summaryOn="SwitchPreference summaryOn"
            android:switchTextOff="SwitchPreference switchTextOff"
            android:switchTextOn="SwitchPreference switchTextOn"
            android:title="SwitchPreference" />

        <CheckBoxPreference
            android:key="CheckBoxPreferenceKey"
            android:summary="CheckBoxPreference  summary"
            android:summaryOff="CheckBoxPreference summaryOff"
            android:summaryOn="CheckBoxPreference summaryOn"
            android:title="CheckBoxPreference" />
    </PreferenceCategory>

</PreferenceScreen></span>

<span style="font-size:18px;"><resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">

   <string-array name="myentry">
       <item >enrty0</item>
       <item >enrty1</item>
       <item >enrty2</item>
       <item >enrty3</item>
       <item >enrty4</item>
   </string-array>

   <string-array name="myentryvalues">
       <item >enrty0_v</item>
       <item >enrty1_v</item>
       <item >enrty2_v</item>
       <item >enrty3_v</item>
       <item >enrty4_v</item>
   </string-array>
</resources></span>

注意要手动调用setValue  才可以持久化保存 ，而且一定要设置key