Android widget onclick listener for several buttons

Question

I am trying to create a widget for my application. From my reading an android developer site your onclick listeners all need to have an Intent. But what if I just want my button to update data in the widget itself and I don't want to start a new activity? Here is some Android demo code: ``` 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); ``` I want a button that when I click makes a http web call and then displays the results in the widget. How do I go about doing this if I have to use intents? Also I need to be able to differentiate between which buttons where clicked. Why do widgets use intents and not the normal onclick listener where it calls a functi…

Accepted Answer

It is possible to make an onClick event for Views in Widgets. You can create as many onClick events as you want.

On top of your Widget class, create a static variable, which will be your onClick name tag:

```
private static final String MyOnClick = "myOnClickTag";
```

Define a helper method to automate the creation of each `PendingIntent`:

```
protected PendingIntent getPendingSelfIntent(Context context, String action) {
    Intent intent = new Intent(context, getClass());
    intent.setAction(action);
    return PendingIntent.getBroadcast(context, 0, intent, 0);
}
```

Set this onClick tag to your view as below:

```
    remoteViews.setOnClickPendingIntent(R.id.button, 
                      getPendingSelfIntent(context, MyOnClick));
```

create an onReceive method in your Widget class and set this onClick event inside it:

```
public void onReceive(Context context, Intent intent) {

if (MyOnClick.equals(intent.getAction())){
        //your onClick action is here
    }
};
```

Whenever the view that you set the tag is pressed, onReceive will capture that and will do the action just the same as our everyday, standard onClick event.

Edit: According to your answer, can you replace your onUpdate content with following lines and try again:

```
    RemoteViews remoteViews = new RemoteViews(context.getPackageName(),R.layout.widget_det);
    thisWidget = new ComponentName(context, MyWidgetProvider.class);    
    remoteViews.setOnClickPendingIntent(R.id.widget_button_stayarm, getPendingSelfIntent(context, MyOnClick1));
    remoteViews.setOnClickPendingIntent(R.id.widget_button_awayarm, getPendingSelfIntent(context, MyOnClick2));
    remoteViews.setOnClickPendingIntent(R.id.widget_button_dissarm, getPendingSelfIntent(context, MyOnClick3));
    remoteViews.setTextViewText(R.id.widget_textview_gpscoords, "gps cords");
    appWidgetManager.updateAppWidget(thisWidget, remoteViews);
```

Android widget onclick listener for several buttons

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