1、Drawable --> Bitmap
- Bitmap drawable2Bitmap(Drawable drawable) {
- if (drawable instanceof BitmapDrawable) {
- return ((BitmapDrawable) drawable).getBitmap();
- } else if (drawable instanceof NinePatchDrawable) {
- 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;
- } else {
- return null;
- }
- }
2、从资源中获取的Drawable --> Bitmap
- Resources res = getResources();
- Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.pic);
3、Bitmap --> Drawable
- Drawable bitmap2Drawable(Bitmap bitmap) {
- return new BitmapDrawable(bitmap);
- }
4、Bitmap --> byte[]
- byte[] Bitmap2Bytes(Bitmap bm) {
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
- return baos.toByteArray();
- }
5、 byte[] --> Bitmap
-
- Bitmap Bytes2Bimap(byte[] b) {
- if (b.length != 0) {
- return BitmapFactory.decodeByteArray(b, 0, b.length);
- } else {
- return null;
- }
- }
本文转自 一点点征服 博客园博客，原文链接：
http://www.cnblogs.com/ldq2016/p/7058127.html
，如需转载请自行联系原作者
