王立平-Android中对图像进行Base64编码

 // ------------------base64-------------------//
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;


}


// --------------base64-----------------//
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;


}