Draw animatable drawable to view.

LoadingView.java

public class LoadingView extends View {
    private CircularProgressDrawable mDrawable;


    public LoadingView(Context pContext) {
        super(pContext);
        init();
    }

    public LoadingView(Context pContext, AttributeSet pAttributeSet) {
        super(pContext, pAttributeSet);
        init();
    }

    public LoadingView(Context pContext, AttributeSet pAttributeSet, int pDefaultStyle) {
        super(pContext, pAttributeSet, pDefaultStyle);
        init();
    }

    private void init() {
        mDrawable = new CircularProgressDrawable(getContext());
        mDrawable.setStyle(CircularProgressDrawable.DEFAULT);
        mDrawable.setCallback(this);
    }

    @Override
    protected void onVisibilityChanged(View changedView, int visibility) {
        super.onVisibilityChanged(changedView, visibility);
        if (visibility == VISIBLE) {
            mDrawable.start();
        } else {
            mDrawable.stop();
        }
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        mDrawable.setBounds(0, 0, w, h);
    }

    @Override
    public void draw(Canvas canvas) {
        super.draw(canvas);
        mDrawable.draw(canvas);
    }

    @Override
    protected boolean verifyDrawable(@NonNull Drawable who) {
        return who == mDrawable || super.verifyDrawable(who);
    }
}