How to perform operations with Imagebuttons widget in android

Question

I have created a simple application in which I have 3 Imagebuttons in an activity. These buttons are performing some operations. Further I want to create a widget on home screen having the 3 Buttons which is performing same operations like the imageButtons in the activity. I have read many tutorials but cannot find a suitable one.

The widget looks like this:

XML code:

<?xml version="1.0" encoding="utf-8"?>
  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:orientation="horizontal"
  android:background="@drawable/my_shape"
  android:layout_gravity="center"
  android:layout_height="wrap_content">

  <ImageButton
   android:id="@+id/imageButton1"
   android:layout_width="52dip"
   android:layout_height="50dip"
   android:layout_gravity="center_horizontal|center"
   android:src="@drawable/ic_launcher" />

  <ImageButton
   android:id="@+id/imageButton2"
   android:layout_width="52dip"
   android:layout_height="50dip"
   android:layout_gravity="center_horizontal|center"
   android:src="@drawable/ic_launcher" />

  <ImageButton
   android:id="@+id/imageButton3"
   android:layout_width="52dip"
   android:layout_height="50dip"
   android:layout_gravity="center_horizontal|center"
   android:src="@drawable/ic_launcher" />

  <ImageButton
   android:id="@+id/imageButton3"
   android:layout_width="52dip"
   android:layout_height="50dip"
   android:layout_gravity="center_horizontal|center"
   android:src="@drawable/ic_launcher" />

   </LinearLayout>

Widget_info.xml in res/xml:

 <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
 android:minWidth="146dip"
 android:minHeight="72dip"
 android:updatePeriodMillis="0"
 android:initialLayout="@layout/widget_layout"/>

I also have widgets details in manifestfile.

I have not included activity code here. In the activity there are 3 imageButton onclick methods and I want the widgets buttons (3 button) to do exactly these operations.

Please can anyone guide me on this. Thanks in advance

Answer 1

In my HomeActivity :

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);


    imgbtn1=(ImageButton)findViewById(R.id.imageCallButton1);
    imgbtn2=(ImageButton)findViewById(R.id.imageFBButton1);
    imgbtn3=(ImageButton)findViewById(R.id.imageSmsButton1);

    imgbtn1.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            Toast.makeText(getApplicationContext(), "U clicked on Call Button", Toast.LENGTH_LONG).show();
        }
    });
  imgbtn2.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            Toast.makeText(getApplicationContext(), "U clicked on FB Button", Toast.LENGTH_LONG).show();
        }
    });
   imgbtn3.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View arg0) {
        // TODO Auto-generated method stub
        Toast.makeText(getApplicationContext(), "U clicked on SMS Button", Toast.LENGTH_LONG).show();
    }
});
    }

In my MyWidgetProvider activity:

public class MyWidgetProvider extends AppWidgetProvider {

@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
        int[] appWidgetIds) {
    // TODO Auto-generated method stub
       //what should be added here
    super.onUpdate(context, appWidgetManager, appWidgetIds);
  }
         }

Answer 2

You can achieve this with the help of setOnClickPendingIntent.

public class Widget extends AppWidgetProvider {

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager,
            int[] appWidgetIds) {
        super.onUpdate(context, appWidgetManager, appWidgetIds);
        final int N = appWidgetIds.length;
        for (int i = 0; i < N; i++) {
            int appWidgetId = appWidgetIds[i];
                    // For first image
            Intent intent = new Intent(context, SplashActivity.class);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,
                    intent, 0);
            RemoteViews views = new RemoteViews(context.getPackageName(),
                    R.layout.appwidget);
            views.setOnClickPendingIntent(R.id.imageButton1, pendingIntent);
                    //For second Image
            Intent intent1 = new Intent(context, HomeActivity.class);
            PendingIntent pendingIntent1 = PendingIntent.getActivity(context, 0,
                    intent1, 0);
            views.setOnClickPendingIntent(R.id.imageButton2, pendingIntent1);

                    // like wise you can add your consecutive classes.

            appWidgetManager.updateAppWidget(appWidgetId, views);
        }

    }
}

I hope this will help you.