1、Drawable → Bitmap
- public static Bitmap drawableToBitmap(Drawable drawable) {
-
- Bitmap bitmap = Bitmap
- .createBitmap(
- drawable.getIntrinsicWidth(),
- drawable.getIntrinsicHeight(),
- drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
- : Bitmap.Config.RGB_565);
- Canvas canvas = new Canvas(bitmap);
-
- drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
- drawable.draw(canvas);
- return bitmap;
- }
2、从资源中获取Bitmap
- Resources res=getResources();
-
- Bitmap bmp=BitmapFactory.decodeResource(res, R.drawable.pic);
3、Bitmap → byte[]
- private byte[] Bitmap2Bytes(Bitmap bm){
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
- return baos.toByteArray();
- }
4、 byte[] → Bitmap
- private Bitmap Bytes2Bimap(byte[] b){
- if(b.length!=0){
- return BitmapFactory.decodeByteArray(b, 0, b.length);
- }
- else {
- return null;
- }
- }
原文：http://bingtian.iteye.com/blog/642128
Drawable、Bitmap、byte[]之间的转换,布布扣,bubuko.com
Drawable、Bitmap、byte[]之间的转换
原文：http://www.cnblogs.com/veins/p/3863796.html
