Android-压缩位图以上传到MySQL数据库

Question

When I take a photo with the camera it should be compressed and uploaded to mysql db.

I checked the function Bitmap.compress() and the output is in a ByteArrayOutputStream but I need the output in File or FileInputStream. Is it poossible to convert ByteArrayOutputStream into File?

Answer 1

Yes, it is :

OutputStream outStream = null;
ByteArrayOutputStream byteOutStream = null;
try {  
    File file = new File(Environment.getExternalStorageDirectory() + "/myimage.png");
    outStream = new FileOutputStream(file);
    byteOutStream = new ByteArrayOutputStream();
    byteOutStream.write(bytes);
    byteOutStream.writeTo(outStream);  
} catch (IOException e) {  
    e.printStackTrace();  
} finally {  
    outStream.close();  
}