android bitmap 获取像素

android bitmap 获取像素并可以重新创建bitmap

Bitmap b = Bitmap.createBitmap(100, 100, Config.ARGB_4444);

b.setPixel(99, 99, Color.WHITE);

int[] buf = new int[b.getRowBytes()/2*b.getHeight()];

try

{

b.getPixels(buf, 0, b.getWidth(), 0, 0,100, 100);

}

catch(Throwable th)

{

th.printStackTrace();

}

Bitmap d = Bitmap.createBitmap(buf, 100, 100, Config.ARGB_4444);

int c = b.getPixel(99, 99);

int count = d.getByteCount();

Log.e("est", Integer.valueOf(count).toString());