android - how to add animation to textView drawable

Question

I have used this line too add image in my textView : android:drawableLeft="@drawable/ic_launcher" in my xml file.

   <TextView
    android:id="@+id/textView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:drawablePadding="5dp"
    android:gravity="center_vertical"
    android:text="@string/hello_world"
    android:textSize="14sp"
    android:textStyle="bold"
    android:drawableLeft="@drawable/ic_launcher"
    >

</TextView>

Now I want to add animation to this drawable. I dont know how can I access this image.

Any help? thanks in advance

Answer 1

if you set the drawable in the XML, you won't be able to access it like you can with an ImageView's getDrawable(). Instead, omit it from your XML and do it in your Activity/Fragment:

TextView tv = (TextView) view.findViewById(R.id.textView1);
AnimationDrawable d = (AnimationDrawable) getResources().getDrawable(R.drawable.ic_launcher);
tv.setCompoundDrawables(d, null, null, null);
d.start();

Provided your drawable ic_launcher can be animated like an AnimationDrawable, this should start the animation. Call d.stop() to cease animation.