Android image reversal effect

Some students may not understand why we need picture inversion (not rotation). In order to save picture resources (space) in game development, we may use picture inversion. For example, a character picture faces left or right. If picture inversion cannot be realized, we need two pictures. Less nonsense and look at the effect Code:

In the above figure, the actual two characters use one picture, but only one picture is processed. Detailed code:

The above is the key code for Android to realize image inversion. I hope it will be helpful to everyone's learning.