Android AppWidgetProvider 定时刷新问题

今天按照相关教材学习AppWidgetProvider，但是不知道为什么程序无法自动刷新，相关程序如下：

appwidgetTest.java

import java.text.SimpleDateFormat;

import java.util.Date;

import Android.app.Service;

import Android.appwidget.AppWidgetManager;

import Android.appwidget.AppWidgetProvider;

import Android.content.ComponentName;

import Android.content.Context;

import Android.content.Intent;

import Android.os.IBinder;

import Android.widget.RemoteViews;

public class appwidgetTest extends AppWidgetProvider {

/** Called when the activity is first created. */

public void onUpdate(Context context,AppWidgetManager appWidgetManager, int[] appWidgetIds){

Intent intent = new Intent(context,UpdateService.class);

context.startService(intent);

super.onUpdate(context, appWidgetManager, appWidgetIds);

}

public static class UpdateService extends Service{
public void onStart(Intent intent,int startId){

super.onStart(intent,startId);

RemoteViews updateViews = new RemoteViews(this.getPackageName(),R.layout.main);

SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss");

updateViews.setTextViewText(R.id.TextView01,""+sdf.format(new Date()));



ComponentName thisWidget = new ComponentName(this,appwidgetTest.class);

AppWidgetManager manager = AppWidgetManager.getInstance(this);

manager.updateAppWidget(thisWidget, updateViews);

}

@Override

public IBinder onBind(Intent arg0) {

// TODO Auto-generated method stub

return null;

}

}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:Android="http://schemas.android.com/apk/res/android"

package="com.hyz"

Android:versionCode="1"

Android:versionName="1.0">

<application
Android:icon="@drawable/icon" android:label="@string/app_name">

<receiver
Android:label="@string/app_name"


Android:name=".appwidgetTest">

<intent-filter>

<action
Android:name="android.appwidget.action.APPWIDGET_UPDATE"></action>

</intent-filter>

<meta-data
Android:name="android.appwidget.provider" android:resource="@xml/my_provider"></meta-data>

</receiver>

<service
Android:name=".appwidgetTest$UpdateService"/>

</application>

</manifest>

my_provider.xml

<?xml version="1.0" encoding="utf-8"?>

<appwidget-provider

xmlns:Android="http://schemas.android.com/apk/res/android"

Android:minWidth="72dip"

Android:minHeight="72dip"

Android:updatePeriodMillis="1000"

Android:initialLayout="@layout/main"

>

</appwidget-provider>

完全无视我设置的Android:updatePeriodMillis="1000"，请教是哪里出错了？完全是按照相关教材来的。

解决方法：

网上找了资料，发现原来1.5以后的版本就不支持刷新了，要自己手写一个timer来刷新程序，具体如下：

appwidgetTest .class

public class appwidgetTest extends AppWidgetProvider {

/** Called when the activity is first created. */

public void onUpdate(Context context,AppWidgetManager appWidgetManager, int[] appWidgetIds){

Timer timer = new Timer();

timer.scheduleAtFixedRate(new MyTime(context,appWidgetManager), 1, 1000);

}

}

MyTime.class

public class MyTime extends TimerTask{



RemoteViews remoteViews;

AppWidgetManager appWidgetManager;

ComponentName thisWidget;

SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss");

public MyTime(Context context,AppWidgetManager appWidgetManager){

this.appWidgetManager = appWidgetManager;

remoteViews = new RemoteViews(context.getPackageName(),R.layout.main);

thisWidget = new ComponentName(context,appwidgetTest.class);

}

@Override

public void run() {

// TODO Auto-generated method stub

remoteViews.setTextViewText(R.id.TextView01,""+sdf.format(new Date()));

appWidgetManager.updateAppWidget(thisWidget, remoteViews);

}



}

其它配置不变