Multiple activity on one button click

I have a problem with creating 2 activities for 1 button. I created a button and I managed to connect that button with one activity but I dont know how to add another activity to the same button.. What am I trying to do is that when we press on that button it will start playing animation (I managed to do that) but I also want it to send SMS to a specific number. I have code for that, but I dont know how to include / connect everything together.

Code from a button:

<Button
    android:id="@+id/button"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/transparent" />

Code from a imageview (animation):

<ImageView

    android:id="@+id/imageView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_centerHorizontal="true"
    android:layout_centerVertical="true"
    android:layout_gravity="center"
    android:scaleType="centerInside"
    android:src="@drawable/keers" />

Code from main activity, for animation:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_main);

    imageView = (ImageView) findViewById(R.id.imageView);

    button = (Button) findViewById(R.id.button);

    running = false;

    button.setOnClickListener(new View.OnClickListener() {

        public void onClick(View view) {
            if(!running){
            ((AnimationDrawable) imageView.getDrawable()).start();
            running = true;}
        }
    }
    );
}

}

Now what I want to add for the same button is this :

public void sendText(View paramView)
{
    Toast.makeText(this, "SENT",Toast.LENGTH_SHORT).show();
    SmsManager.getDefault().sendTextMessage("+3564245237",null,"1", null, null);

Im not that expirienced in programming, so it might be pretty easy for you guys. Thanks for all your advices!