android中bitmap和drawable互相转换

1.Android中Drawable和Bitmap 之间转换

/**

* Drawable转化为Bitmap

*/

public static Bitmap drawableToBitmap(Drawable drawable) {

int width = drawable.getIntrinsicWidth();

int height = drawable.getIntrinsicHeight();

Bitmap bitmap = Bitmap.createBitmap(width, height, drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565);

Canvas canvas = new Canvas(bitmap);

drawable.setBounds(0, 0, width, height);

drawable.draw(canvas);

return bitmap;



}

/**

* Bitmap to Drawable

* @param bitmap

* @param mcontext

* @return

*/

public static Drawable bitmapToDrawble(Bitmap bitmap,Context mcontext){

Drawable drawable = new BitmapDrawable(mcontext.getResources(), bitmap);

return drawable;

}