Update app widget on click in android

Question

I am working on Android Widget my widget is like following diagram, [prev] event name [next]

prev, next are the buttons on the widget.So i want to update the event name on click of next and prev button.On start of the service i loaded the data and stored it in array list. Now i want to iterate through the array list by clicking the next and prev buttons on the widget.

So how can i achieve this.Please help me with proper solution. Here is my xml layout

<LinearLayout
    android:id="@+id/lytWidget2"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="5dip"
    android:orientation="horizontal" >

    <Button
        android:id="@+id/btnPreviousView"
        android:layout_width="43dp"
        android:layout_height="fill_parent"
        android:layout_gravity="left|center"
        android:background="@drawable/ic_leftarrow"
        android:padding="5dip" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="52dp"
        android:layout_weight="0.97"
        android:text="Event Name" />

    <Button
        android:id="@+id/btnNextView"
        android:layout_width="43dp"
        android:layout_height="fill_parent"
        android:layout_gravity="right|center_vertical"
        android:background="@drawable/ic_rightarrow"
        android:padding="5dip" />
</LinearLayout>

Answer 1

So, just handle the click events of your buttons in the AppWidgetProvider class like this. See this good tutorial on how to create simple widget. There are click handlers added too.

• Tutorial – Creating a Custom Analog Clock Widget

Sample code

 @Override 
 public void onReceive(Context context, Intent intent) 
 { 
      super.onReceive(context, intent); 

      RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
      // find your TextView here by id here and update it.

      Toast.makeText(context, "Clicked!!", Toast.LENGTH_SHORT).show(); 
 }