原来，从ImageView里读取的Bitmap，或者加载drawable里的图片资源，返回的都是一个immutalbe的bitmap，所以不能用setpixels
必须采取类似Bitmap bmp = Bitmap.createBitmap(2, 2, Bitmap.Config.ARGB_8888);的方式，返回的才是一个mutable的bitmap，可以修改像素
setPixel抛出java.lang.IllegalStateException
相关文章
- 解决okHttp使用https抛出stream was reset: PROTOCOL_ERROR的问题
- Maven打包时抛出should not point at files within the project directory …异常
- druid设置数据源报错类型不支持Cause: java.lang.IllegalStateException: dbType not support
- Tomcat部署项目时出错java.lang.IllegalStateException: ContainerBase.addChild: start:org.apache.catalina.Life
- SpringCloud config client报错：java.lang.IllegalStateException: No instances found of configserver
- java.lang.IllegalStateException: Form too many key解决方法
- idea中springboot实现canal同步报错：java.lang.IllegalStateException: Failed to execute CommandLineRunner
- 执行iterator.remove()方法时出现java.lang.IllegalStateException
- java.lang.IllegalStateException: Failed to load ApplicationContext
- sprintBoot上传图片报错：Maximum upload size exceeded; nested exception is java.lang.IllegalStateException: