Pop in button

  ivAdd.setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View view, MotionEvent motionEvent) {
                    switch (motionEvent.getAction()) {
                        case MotionEvent.ACTION_DOWN:
                            if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT)
                                ivAdd.setElevation(0);
                            break;
                        case MotionEvent.ACTION_UP:
                        case MotionEvent.ACTION_CANCEL:
                        case MotionEvent.ACTION_OUTSIDE:
                            if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT)
                                ivAdd.setElevation(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 5, getResources().getDisplayMetrics()));

                    }
                    return false;
                }
            });