获取Blob图像并将该图像转换为位图图像

Question

我从blob格式的数据库中获取图像.我想将它转换为Bitmap image.the我用来将位图转换为Blob的代码放在下面.但请告诉我如何反转它.???

ByteArrayOutputStream boas = new ByteArrayOutputStream();  
btmap.compress(Bitmap.CompressFormat.JPEG, 100, boas ); //bm is the bitmap object   
byte[] byteArrayImage = boas .toByteArray(); 
String encodedImage = Base64.encodeToString(byteArrayImage, Base64.DEFAULT);

Answer 1

这会奏效

byte[] byteArray = DBcursor.getBlob(columnIndex);  

Bitmap bm = BitmapFactory.decodeByteArray(byteArray, 0 ,byteArray.length);