主要事件方法:/**

* Implementation of App Widget functionality.

*/

public class NewAppWidget extends AppWidgetProvider

{

/**

* 到達指定的更新時間或者當用戶向桌面添加AppWidget時被調用

* */

@Override

public void onUpdate(Context context, AppWidgetManager appWidgetManager,

int[] appWidgetIds)

{

// There may be multiple widgets active, so update all of them

final int N = appWidgetIds.length;

for (int i = 0; i < N; i++)

{

updateAppWidget(context, appWidgetManager, appWidgetIds[i]);

}

}

/**

* AppWidget的實例第一次被創建時調用

* */

@Override

public void onEnabled(Context context)

{

// Enter relevant functionality for when the first widget is created

}

/**

* 最后一個appWidget被刪除時調用

* */

@Override

public void onDisabled(Context context)

{

// Enter relevant functionality for when the last widget is disabled

}

/**

* 接受廣播事件

* */

@Override

public void onReceive(Context context, Intent intent)

{

// TODO Auto-generated method stub

super.onReceive(context, intent);

}

/**

* 刪除一個AppWidget時調用

* */

@Override

public void onDeleted(Context context, int[] appWidgetIds)

{

// TODO Auto-generated method stub

super.onDeleted(context, appWidgetIds);

}

static void updateAppWidget(Context context,

AppWidgetManager appWidgetManager, int appWidgetId)

{

CharSequence widgetText = context.getString(R.string.appwidget_text);

// Construct the RemoteViews object

RemoteViews views = new RemoteViews(context.getPackageName(),

R.layout.new_app_widget);

views.setTextViewText(R.id.appwidget_text, widgetText);

// Instruct the widget manager to update the widget

appWidgetManager.updateAppWidget(appWidgetId, views);

}

}

參考資料：http://www.cnblogs.com/qianlifeng/archive/2011/03/26/1996407.html

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