Question

我正在使用RemoteViewsService.RemoteViewsFactory（link）

在主屏幕小部件中显示列表视图。一切正常，我可以捕获listview项目的点击。现在我想在listview上方添加一个按钮，以允许用户跳转到配置活动：

这是我的小部件布局xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="8dip"
    android:background="@drawable/widget_frame"
    android:orientation="vertical" >

 <Button
        android:id="@+id/button1"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button" />

<ListView android:id="@+id/listview"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:layout_marginTop="0dp"
  android:layout_marginLeft="0dp"/>


</LinearLayout>

这是我在WidgetProvider.java类中的onUpdate方法：

public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {

  Log.w(LOG, "onUpdate method called");


  for (int i=0; i<appWidgetIds.length; i++) {

      Intent svcIntent=new Intent(context, WidgetService.class);
      svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
      // http://stackoverflow.com/questions/13199904/android-home-screen-widget-remoteviews-setremoteadapter-method-not-working
      Random generator = new Random();
      int randomNumber = generator.nextInt(1000);
      svcIntent.putExtra("random", randomNumber);
      svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));

      RemoteViews remoteviews=new RemoteViews(context.getPackageName(), R.layout.widget_layout);

      //------------------------------------------------------------------------------------
      // trying to capture the button click ... ?
      RemoteViews btn_remoteviews=new RemoteViews(context.getPackageName(), R.id.button1);      

      Intent btn_clickIntent = new Intent(context, Config.class);
      btn_clickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
      //PendingIntent btn_pendingIntent = PendingIntent.getBroadcast(context, appWidgetIds[i], btn_clickIntent, 0);
      PendingIntent btn_pendingIntent = PendingIntent.getActivity(context, 0, btn_clickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
      btn_remoteviews.setPendingIntentTemplate(R.id.button1, btn_pendingIntent);        
      appWidgetManager.updateAppWidget(appWidgetIds[i], btn_remoteviews);
      //------------------------------------------------------------------------------------




      remoteviews.setRemoteAdapter(appWidgetIds[i], R.id.listview, svcIntent);

      Intent clickIntent=new Intent(context, LoremActivity.class);
      clickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
      PendingIntent clickPI=PendingIntent.getActivity(context, 0, clickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
      remoteviews.setPendingIntentTemplate(R.id.listview, clickPI);       

      appWidgetManager.updateAppWidget(appWidgetIds[i], remoteviews);

  }

super.onUpdate(context, appWidgetManager, appWidgetIds);

}

如何捕捉按钮???

我的列表视图上的所有点击都被捕获但我无法捕获列表视图上方按钮的点击???

非常感谢你的帮助！

Answer 1

如您提供的页面所述：

此AppWidgetProvider仅定义onUpdate（）方法定义启动Activity和的PendingIntent的目的用它将它附加到App Widget的按钮 setOnClickPendingIntent（int，PendingIntent）。请注意，它包含一个循环遍历appWidgetIds中的每个条目，这是一个 ide
的ID数组

此外：

如使用AppWidgetProvider类中所述，通常使用 setOnClickPendingIntent（）设置对象的单击行为 - 例如to 导致按钮启动活动。但这种方法是不允许的对于个人收集项目中的子视图（澄清，您可以使用setOnClickPendingIntent（）来设置全局按钮例如，启动应用的Gmail应用小部件，但不在个别清单项目）。相反，要向个人添加点击行为集合中的项目，您使用setOnClickFillInIntent（）。这需要为您的集合视图设置待定的意图模板，以及然后通过你的设置为集合中的每个项目设置一个填充意图 RemoteViewsFactory。

您提供的链接中的示例怎么样？我没有仔细阅读那个页面（你肯定应该），但是你不应该setOnClickPendingIntent（）或setOnClickFillInIntent（）？：

public class ExampleAppWidgetProvider extends AppWidgetProvider {

    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        final int N = appWidgetIds.length;

        // Perform this loop procedure for each App Widget that belongs to this provider
        for (int i=0; i<N; i++) {
            int appWidgetId = appWidgetIds[i];

            // Create an Intent to launch ExampleActivity
            Intent intent = new Intent(context, ExampleActivity.class);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);

            // Get the layout for the App Widget and attach an on-click listener
            // to the button
            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidget_provider_layout);
            views.setOnClickPendingIntent(R.id.button, pendingIntent);

            // Tell the AppWidgetManager to perform an update on the current app widget
            appWidgetManager.updateAppWidget(appWidgetId, views);
        }
    }
}

Answer 2

这就是我最终做的......

for (int i=0; i<appWidgetIds.length; i++) {

      Intent svcIntent=new Intent(context, WidgetService.class);
      svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
      // http://stackoverflow.com/questions/13199904/android-home-screen-widget-remoteviews-setremoteadapter-method-not-working
      Random generator = new Random();
      int randomNumber = generator.nextInt(1000);
      svcIntent.putExtra("random", randomNumber);
      svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));

      RemoteViews remoteviews=new RemoteViews(context.getPackageName(), R.layout.widget_layout);

      //------------------------------------------------------------------------------------
      // trying to capture the button click ... ?   

      Intent btn_clickIntent = new Intent(context, Config.class);
      btn_clickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
      PendingIntent btn_pendingIntent = PendingIntent.getActivity(context, 0, btn_clickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
      remoteviews.setOnClickPendingIntent(R.id.button1, btn_pendingIntent);     

      Intent btn2_clickIntent = new Intent(context, Config2.class);
      btn2_clickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
      PendingIntent btn2_pendingIntent = PendingIntent.getActivity(context, 0, btn2_clickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
      remoteviews.setOnClickPendingIntent(R.id.button2, btn2_pendingIntent);        

      remoteviews.setRemoteAdapter(appWidgetIds[i], R.id.listview, svcIntent);

      Intent clickIntent=new Intent(context, LoremActivity.class);
      clickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
      PendingIntent clickPI=PendingIntent.getActivity(context, 0, clickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
      remoteviews.setPendingIntentTemplate(R.id.listview, clickPI);       

      appWidgetManager.updateAppWidget(appWidgetIds[i], remoteviews);  
}

在Homescreen小部件的listview上方添加一个按钮 - 如何捕获单击此按钮？

2 个答案: