【安卓笔记】Widget

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package com.example.widget;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
public class MyWidgetProvider extends AppWidgetProvider
{
	@Override
	public void onEnabled(Context context)
	{
		super.onEnabled(context);
	}
	@Override
	public void onUpdate(Context context, AppWidgetManager appWidgetManager,
			int[] appWidgetIds)
	{
		super.onUpdate(context, appWidgetManager, appWidgetIds);
	}
	@Override
	public void onDisabled(Context context)
	{
		super.onDisabled(context);
	}
}

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="2dp"
     >
    <LinearLayout 
        android:layout_width="match_parent"
        android:layout_height="match_parent"
		android:orientation="horizontal"        
        >
        <Button 
            android:id="@+id/btn"  
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="打开软件"
            android:textColor="@android:color/black"
            />
        <TextView 
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="这是一个widget"
            />
    </LinearLayout>
</FrameLayout>

<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:initialLayout="@layout/widget_layout"
    android:minHeight="50dp"
    android:minWidth="290dp"
    android:updatePeriodMillis="86400000" >
</appwidget-provider>

<receiver android:name="com.example.widget.MyWidgetProvider" >
            <intent-filter><!--action name是固定的-->
                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
            </intent-filter>
            <meta-data
                android:name="android.appwidget.provider"
                android:resource="@xml/app_widget_info" />
</receiver>

@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,int[] appWidgetIds)
	{
		Log.d(TAG,"onUpdate...");
		RemoteViews views = new RemoteViews(context.getPackageName(),R.layout.widget_layout);
		PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, new Intent(context,MainActivity.class),0);
		views.setOnClickPendingIntent(R.id.btn, pendingIntent);
		appWidgetManager.updateAppWidget(appWidgetIds, views);
	}

AppWidgetManager.getInstance(context);

【安卓笔记】Widget

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原文地址：http://blog.csdn.net/chdjj/article/details/42293793