我如何启动一个活动与家庭的Widget

Question

可能重复：
How to launch activity from android home screen widget

请告诉我最简单的代码来启动从应用的主屏幕小部件的活动？

我到目前为止的代码不工作，没有在LogCat中显示.. ??

控件内有一个图像，当图像被点击时，应该启动应用程序。寻找一个片段。

public class MyWidget extends AppWidgetProvider 
{ 
    // Create an Intent to launch activity from ImageView 
    @Override 
    public void onEnabled(Context context) 
    { 
    Intent intent = new Intent(Intent.ACTION_MAIN, null); 
    intent.addCategory(Intent.CATEGORY_LAUNCHER); 

    ComponentName comp = new ComponentName(context.getPackageName(),MyWidget.class.getName()); 
    intent.setComponent(cn); 
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
    PendingIntent myPI = PendingIntent.getActivity(context, 0, intent, 0); 

    RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.content);//<-THE LAYOUT W/I THE MainActivity CLASS?? 

    views.setOnClickPendingIntent(R.id.widgetLauncher, myPI);//<-THE IMAGEVIEW ID?? 

    AppWidgetManager mgr = AppWidgetManager.getInstance(context); 
    mgr.updateAppWidget(comp, views); 
    } 
} 

控件布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 

    <ImageView 
     android:id="@+id/widgetLauncher" 
     android:layout_width="258dp" 
     android:layout_height="54dp" 
     android:layout_centerInParent="true" 
     android:src="@drawable/wgt_logo" > 
    </ImageView> 

</RelativeLayout> 

Answer 1

这最后的工作：

public class MyWidget extends AppWidgetProvider 
{ 
    // Create an Intent to launch activity 
    @Override 
    public void onUpdate(Context context, AppWidgetManager appWidgetManager,int[] appWidgetIds) 
    { 
    super.onUpdate(context, appWidgetManager, appWidgetIds); 

    RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.home_widget); 
    // When we click the widget, we want to open our main activity. 
    Intent launchActivity = new Intent(context, MainActivity.class); 
    PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, launchActivity, 0); 
    remoteViews.setOnClickPendingIntent(R.id.widget, pendingIntent);; 

    ComponentName thisWidget = new ComponentName(context, MyWidget.class); 
    AppWidgetManager manager = AppWidgetManager.getInstance(context); 
    manager.updateAppWidget(thisWidget, remoteViews); 
    } 
}