Android：单击小部件时不会启动活动

Question

我有一个小部件，其布局有两个按钮。我的代码如下：

public void onReceive(Context context, Intent i) { 

    AppWidgetManager mgr = AppWidgetManager.getInstance(context); 

    Intent intent = new Intent(context, Activity1.class); 
    PendingIntent pendingLayout = PendingIntent.getActivity(context, 0, intent, 0); 


    Intent searchIntent = new Intent(context, Activity2.class); 
    PendingIntent searchPendingLayout = PendingIntent.getActivity(context, 0, searchIntent, 0); 

    RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.searchwidget); 

    views.setOnClickPendingIntent(R.id.widgetbutton, pendingLayout); 
    views.setOnClickPendingIntent(R.id.widgetsearch, searchPendingLayout); 

    ComponentName comp = new ComponentName(context, 
      RecentTaskWidget.class.getName()); 

    mgr.updateAppWidget(comp, views); 
} 

widgetbutton和widgetsearch是布局中的两个视图。我从remoteviews对象中获取相应的视图，并将挂起的布局添加到它们中的每一个。但是，这些活动并未开始。代码有什么问题吗？

Thx！

Answer 1

覆盖你AppWidgetProvider的onUpdate()方法，并且此代码添加到它的身上：

@Override 
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { 
    AppWidgetManager mgr = AppWidgetManager.getInstance(context); 
    Intent intent = new Intent(context, Activity1.class); 
    PendingIntent pendingLayout = PendingIntent.getActivity(context, 0, intent, 0); 
    Intent searchIntent = new Intent(context, Activity2.class); 
    PendingIntent searchPendingLayout = PendingIntent.getActivity(context, 0, searchIntent, 0); 
    RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.searchwidget); 
    views.setOnClickPendingIntent(R.id.widgetbutton, pendingLayout); 
    views.setOnClickPendingIntent(R.id.widgetsearch, searchPendingLayout); 
    ... 
    appWidgetManager.updateAppWidget(appWidgetIds, views); 
}  

你可以看到this page了解更多详情。