android之AppWidget开发实例代码解析

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 import android.app.PendingIntent; 
import android.appwidget.AppWidgetManager; 
import android.appwidget.AppWidgetProvider; 
import android.content.Context; 
import android.content.Intent; 
import android.text.format.Time; 
import android.widget.RemoteViews; 
import android.widget.Toast; 
 
public class ExampleAppWidgetProvider extends AppWidgetProvider{ 
  private String[] mOnths={"一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"}; 
  private String[] days={"星期日","星期一","星期二","星期三","星期四","星期五","星期六"}; 
  @Override 
  public void onUpdate(Context context, AppWidgetManager appWidgetManager, 
      int[] appWidgetIds) { 
    // TODO Auto-generated method stub 
     
    RemoteViews remoteViews=new RemoteViews(context.getPackageName(), R.layout.myappwidget); 
    Time time=new Time(); 
    time.setToNow(); 
    String mOnth=time.year+" "+months[time.month]; 
    remoteViews.setTextViewText(R.id.txtDay, new Integer(time.monthDay).toString()); 
    remoteViews.setTextViewText(R.id.txtMonth, month); 
    remoteViews.setTextViewText(R.id.txtWeekDay, days[time.weekDay]); 
    Intent intent=new Intent("cn.com.karl.widget.click"); 
    PendingIntent pendingIntent=PendingIntent.getBroadcast(context, 0, intent, 0); 
    remoteViews.setOnClickPendingIntent(R.id.layout, pendingIntent); 
    appWidgetManager.updateAppWidget(appWidgetIds, remoteViews); 
     
    super.onUpdate(context, appWidgetManager, appWidgetIds); 
  } 
   
  @Override 
  public void onReceive(Context context, Intent intent) { 
    // TODO Auto-generated method stub 
    super.onReceive(context, intent); 
    if(intent.getAction().equals("cn.com.karl.widget.click")){ 
      Toast.makeText(context, "点击了widget日历", 1).show(); 
    } 
  } 
}