# Android 自定义饱和度 实现黑白imageview
@Auther: David
@email ：david.forever.god@gmail.com
Learn from yesterday, live for today, hope for tomorrow.
start
step 1:得到Imageview，并附上图片：
Resources res = getResources();Bitmap bmp= BitmapFactory.decodeResource(res, R.drawable.h1);imageview.setImageBitmap(bmp);
step 2:转换颜色饱和度，实现黑白效果：
ColorMatrix cm = new ColorMatrix();cm.setSaturation(0f); // 设置饱和度:0为纯黑白，饱和度为0；1为饱和度为100，即原图；ColorMatrixColorFilter grayColorFilter = new ColorMatrixColorFilter(cm);imageview.setColorFilter(grayColorFilter);
end
@Auther: David
@email ：david.forever.god@gmail.com
Learn from yesterday, live for today, hope for tomorrow.
本文链接：https://my.lmcjl.com/post/963.html
展开阅读全文
4 评论