bitmap转化base64

/**
 * bitmap转化base64
 */
public static String bitmapToBase64(Bitmap bitmap) {

    String result = null;
    ByteArrayOutputStream baos = null;
    try {
        if (bitmap != null) {
            baos = new ByteArrayOutputStream();
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);

            try {
                baos.flush();
                baos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }

            byte[] bitmapBytes = baos.toByteArray();
            result = Base64.encodeToString(bitmapBytes, Base64.DEFAULT);
        }
    } finally {
        try {
            if (baos != null) {
                baos.flush();
                baos.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return result;
}