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当我查看Android的Bitmap类的实现时,我发现它内部使用了SkBitmap。
Android 的 Bitmap 类分别为位图本身和后备缓冲区分配一个本机堆和一个 jbyte 数组。
什么是后备缓冲区及其目标?(后备缓冲区在 Android 的 Bitmap 类中被声明为“mBuffer”)