如何从Android中的小部件上的按钮运行活动？

Question

我正在研究一个由按钮组成的切换小部件.按下时,我希望它能在不打开任何东西的情况下运行一个活动(就像平时一样在桌面上说).有没有办法通过桌面小部件上的按钮直接运行活动？谢谢!更新:现在我正在尝试从代码中切换静默模式而不运行新活动.这是我当前的代码(当我因某些原因点击它们时按钮什么都不做)

package toggleHD.widget;

import android.app.Activity;
import android.app.IntentService;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.media.AudioManager;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.RemoteViews;
import android.widget.Toast;


    public class ButtonWidget extends AppWidgetProvider {

        public static String ACTION_WIDGET_CLICK_RECEIVER = "ActionReceiverWidget";

        public static int appid[];
        public static RemoteViews rview;
        @Override
        public void onUpdate(Context context, AppWidgetManager appWidgetManager, 
                int[] appWidgetIds){
            updateWidgetState(context, ""); 
        }
        @Override
        public void onReceive(Context paramContext, Intent paramIntent)
          {
             String str = paramIntent.getAction();
            if (paramIntent.getAction().equals(ACTION_WIDGET_CLICK_RECEIVER)) {
                updateWidgetState(paramContext, str);   
            }
            else
            {
                    if ("android.appwidget.action.APPWIDGET_DELETED".equals(str))
                      {
                        int i = paramIntent.getExtras().getInt("appWidgetId", 0);
                        if (i == 0)
                        {

                        }
                        else
                        {
                            int[] arrayOfInt = new int[1];
                            arrayOfInt[0] = i;
                            onDeleted(paramContext, arrayOfInt);
                        }
                      }
              super.onReceive(paramContext, paramIntent);
            }
          }
         static void updateWidgetState(Context paramContext, String paramString)
          {
            RemoteViews localRemoteViews = buildUpdate(paramContext, paramString);
            ComponentName localComponentName = new ComponentName(paramContext, ButtonWidget.class);
            AppWidgetManager.getInstance(paramContext).updateAppWidget(localComponentName, localRemoteViews);
          }
         private static RemoteViews buildUpdate(Context paramContext, String paramString)
          {
            // Toast.makeText(paramContext, "buildUpdate() ::"+paramString, Toast.LENGTH_SHORT).show();
            rview = new RemoteViews(paramContext.getPackageName(), R.layout.main);
            Intent active = new Intent(paramContext, ButtonWidget.class);
            active.setAction(ACTION_WIDGET_CLICK_RECEIVER);

           // PendingIntent configPendingIntent = PendingIntent.getActivity(paramContext, 0, active, 0);

// upadte this R.id.buttonus1 with your layout or image id on which click you want to start Activity

Intent configIntent = new Intent(paramContext, TestReceiver.class);
configIntent.setAction(ACTION_WIDGET_CLICK_RECEIVER);
PendingIntent configPendingIntent = PendingIntent.getActivity(paramContext, 0, configIntent, 0);
            if(paramString.equals(ACTION_WIDGET_CLICK_RECEIVER))
            {

               //open Activity here..
             //your code for update and what you want on button click
//
         rview.setOnClickPendingIntent(R.id.button_one, configPendingIntent);
            }  
             return rview; 
          }
        @Override
        public void onEnabled(Context context){
            super.onEnabled(context);
           // Toast.makeText(context, "onEnabled()  ", Toast.LENGTH_SHORT).show();
        }
        // Called each time an instance of the App Widget is removed from the host
        @Override
        public void onDeleted(Context context, int [] appWidgetId){
            super.onDeleted(context, appWidgetId);
           // Toast.makeText(context, "onDeleted()  ", Toast.LENGTH_SHORT).show();
        }
        // Called when last instance of App Widget is deleted from the App Widget host.
        @Override
        public void onDisabled(Context context) {
            super.onDisabled(context);
           // Toast.makeText(context, "onDisabled()  ", Toast.LENGTH_SHORT).show();
        }

    }

Answer 1

在Home Screen Widget上启动活动点击:

方法1:在 onReceive

Intent intentClick =   the new Intent to (context, update, class);
PendingIntent pendingIntent = PendingIntent.getActivity (context, 0,
intentClick, 0);
rv.setOnClickPendingIntent (R.id.layout, pendingIntent);

方法2:在 onReceive

Intent intn = new Intent (context, update. Class);
intn.setFlags (Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity (intn);

但您必须为小部件点击注册广播