小部件双击

Question

我有一个小部件(AppWidgetProvider),我想知道是否有一种方法来支持多次点击.例如:

1)如果是第一次单击窗口小部件,则窗口小部件的ImageButton会更改(例如,更改颜色).

2)如果是第二次,则打开一个活动.

- 有一些方法可以处理AppWidgetProvider中的点击事件吗？

我的代码:

public class MyWidgetProvider extends AppWidgetProvider
{


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

        for (int i=0; i<N; i++) {
            int appWidgetId = appWidgetIds[i];    

            Intent intent = new Intent(context, MyActivity.class);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);


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

            views.setOnClickPendingIntent(R.id.asdf, pendingIntent);

             appWidgetManager.updateAppWidget(appWidgetId, views);
        }    
    }
}

我的小部件工作正常.当我单击ImageButton(R.id.asdf)时,它将转到活动MyActivity.

我想知道如何处理我的小部件上的点击事件以进行不同的操作(例如:更改ImageButton的颜色)而不是去某些活动.除了setOnClickPendingIntent()之外还有其他一些点击句柄吗？

Answer 1

也许这可能有所帮助.这个对我有用:

public class WidgetProvider extends AppWidgetProvider {

private static final int DOUBLE_CLICK_DELAY = 500;

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


    RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
    Intent intent = new Intent(context, getClass());
    intent.setAction("Click");
    PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
    views.setOnClickPendingIntent(R.id.image, pendingIntent);
    appWidgetManager.updateAppWidget(appWidgetIds, views);
    context.getSharedPreferences("widget", 0).edit().putInt("clicks", 0).commit();

}

@Override
public void onReceive(final Context context, Intent intent) {

    if (intent.getAction().equals("Click")) {

        int clickCount = context.getSharedPreferences("widget", Context.MODE_PRIVATE).getInt("clicks", 0);
        context.getSharedPreferences("widget", Context.MODE_PRIVATE).edit().putInt("clicks", ++clickCount).commit();

        final Handler handler = new Handler() {
            public void handleMessage(Message msg) {

                int clickCount = context.getSharedPreferences("widget", Context.MODE_PRIVATE).getInt("clicks", 0);

                if (clickCount > 1) Toast.makeText(context, "doubleClick", Toast.LENGTH_SHORT).show();
                else Toast.makeText(context, "singleClick", Toast.LENGTH_SHORT).show();

                context.getSharedPreferences("widget", Context.MODE_PRIVATE).edit().putInt("clicks", 0).commit();
            }
        };

        if (clickCount == 1) new Thread() {
            @Override
            public void run(){
                try {
                    synchronized(this) { wait(DOUBLE_CLICK_DELAY); }
                    handler.sendEmptyMessage(0);
                } catch(InterruptedException ex) {}
            }
        }.start();
    }

    super.onReceive(context, intent);

}

}