Android customized surfaceview to realize Sketchpad function

After having been in contact with view for so long, we can't stay in view all the time. From now on, we need to learn a new knowledge point: surfaceview. In fact, the principles of surfaceview and view are similar, but in terms of efficiency and rendering method, surfaceview is better than view, which is the reason why we write this. Let's take a look at this surfaceview today. OK, here's the effect to be said today.

The interface is very simple, just a button and a drawing board. Let's look at the interface code first

Right? The interface is not very complex. Let's see how the secondsurfaceview is implemented;

Then there is mainactivity java

Source code download: http://xiazai.jb51.net/201607/yuanma/SurfaceView (jb51.net). rar

The above is the whole content of this article. I hope it will be helpful to your study, and I hope you can support programming tips.