Animate a view by scaling in it. Such dialer in Lollipop.Requires API level 21. Credit AOSP.

ScaleInAnimation.java

    /**
     * * Scales in the view from scale of 0 to actual dimensions.
     * * @param view The view to scale.
     * * @param durationMs The duration of the scaling in milliseconds.
     * * @param startDelayMs The delay to applying the scaling in milliseconds.
     */
    public static void scaleIn(final View view, int durationMs, int startDelayMs) {
        AnimatorListenerAdapter listener = (new AnimatorListenerAdapter() {
            @Override
            public void onAnimationStart(Animator animation) {
                view.setVisibility(View.VISIBLE);
            }

            @Override
            public void onAnimationCancel(Animator animation) {
                view.setScaleX(1);
                view.setScaleY(1);
            }
        });
        scaleInternal(view, 0 /* startScaleValue */, 1 /* endScaleValue */, durationMs,
                startDelayMs, listener, new PathInterpolator(0.0f, 0.0f, 0.2f, 1.0f));
    }

    private static void scaleInternal(final View view, int startScaleValue, int endScaleValue,
                                      int durationMs, int startDelay, AnimatorListenerAdapter listener,
                                      Interpolator interpolator) {
        view.setScaleX(startScaleValue);
        view.setScaleY(startScaleValue);

        final ViewPropertyAnimator animator = view.animate();
        animator.cancel();

        animator.setInterpolator(interpolator)
                .scaleX(endScaleValue)
                .scaleY(endScaleValue)
                .setListener(listener)
                .withLayer();

        animator.setDuration(durationMs);

        animator.setStartDelay(startDelay);

        animator.start();
    }