Android中对图像进行Base64编码

        public String bitmaptoString(Bitmap bitmap) {



                // 将Bitmap转换成字符串

                String string = null;

                ByteArrayOutputStream bStream = new ByteArrayOutputStream();

                bitmap.compress(CompressFormat.PNG, 100, bStream);

                byte[] bytes = bStream.toByteArray();

                string = Base64.encodeToString(bytes, Base64.DEFAULT);

                return string;

        }

 

这就是获取位图Base64编码的代码，同理也可以将Base64编码字符串转化为Bitmap对象

public Bitmap stringtoBitmap(String string) {

                // 将字符串转换成Bitmap类型

                Bitmap bitmap = null;

                try {

                        byte[] bitmapArray;

                        bitmapArray = Base64.decode(string, Base64.DEFAULT);

                        bitmap = BitmapFactory.decodeByteArray(bitmapArray, 0,

                                        bitmapArray.length);

                } catch (Exception e) {

                        e.printStackTrace();

                }



                return bitmap;

        }