Socket send file from android to server and vice versa

Question

I want to send a file (video) from android to server and vice versa. And I want the setup to work for N number of devices (more than 1). I assume we can use socket, yet I am not sure if using Socket for this requirement is the best way. Thanks in advance.

Answer 1

Sending a file in Socket is same as sending any string or integer data. The only difference is that you will send the bytes of the file instead of string/int. To do so,

File file = new File (FILE_TO_SEND); // get your file here
byte[] bytes  = new byte [(int)file.length()]; // create byte array
FileInputStream fis = new FileInputStream(file);
BufferedInputStream bis = new BufferedInputStream(fis);
bis.read(bytes,0,bytes.length); // Read bytes from file.
OutputStream os = socket.getOutputStream(); // Get output stream from socket
os.write(bytes,0,bytes.length);

Note: this will work only if the file.length is within integer range. If the file is huge, then you have to repeat the process with new set of bytes until the full file is uploaded.

Hope this helps!