安卓:使图像不透明/透明不透明、图像、透明

2023-09-05 00:34:49 作者:24K纯傻

问候,

我想放置图像在一个surfaceview。不过,我想图像是透明的,所以你可以看到图像,也是undlying surfaceview。任何人都可以建议我怎么能做到这一点?

I would like to place an image over a surfaceview. However I would like the image to be transparent so you can see the image and also the undlying surfaceview. Can anyone suggest how I could do this?

推荐答案

这是我画的形状之前,我是怎么做的。

This is how I do it before drawing my shapes.

Bitmap buffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_4444);
buffer.eraseColor(Color.TRANSPARENT);