android bitmap和base64之間的轉換

標籤：bitmap

實現手寫圖片，將圖片轉化為字串以及字串轉化為圖片，減小發送內容大小

<pre name="code" class="java">/** * bitmap轉為base64 * @param bitmap * @return */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);baos.flush();baos.close();byte[] bitmapBytes = baos.toByteArray();result = Base64.encodeToString(bitmapBytes, Base64.DEFAULT);}} catch (IOException e) {e.printStackTrace();} finally {try {if (baos != null) {baos.flush();baos.close();}} catch (IOException e) {e.printStackTrace();}}return result;}/** * base64轉為bitmap * @param base64Data * @return */public static Bitmap base64ToBitmap(String base64Data) {byte[] bytes = Base64.decode(base64Data, Base64.DEFAULT);return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);}

android bitmap和base64之間的轉換