Android：可以在使用 LAN 下载 mp4 视频文件的同时播放它吗？

Question

我的客户希望仅使用 LAN 连接将视频文件从他的相机存储传输到他的 Android 手机。这可能吗？目前，我唯一能做的就是从手机存储中播放视频并流式传输 HTTP 或 RTSP 流视频，但是可以在通过 LAN 发送视频文件的同时流式传输吗？

public class Client extends Activity {

    private Socket client;
     private FileInputStream fileInputStream;
     private BufferedInputStream bufferedInputStream;
     private OutputStream outputStream;
     private Button button;
     private TextView text;
     
     @Override
     public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
     
      button = (Button) findViewById(R.id.button1);   
      text = (TextView) findViewById(R.id.textView1);   
     
      //Button press event listener
      button.setOnClickListener(new View.OnClickListener() {
     
       public void onClick(View v) {
     
         

     
    File file = new File("/storage/emulated/BaseAhri.jpg"); 
     
    try {
      
     client = new Socket("10.0.2.2", 4444);
      
     byte[] mybytearray = new byte[(int) file.length()]; 
 
     fileInputStream = new FileInputStream(file);
     bufferedInputStream = new BufferedInputStream(fileInputStream); 
 
     bufferedInputStream.read(mybytearray, 0, mybytearray.length); 
 
     outputStream = client.getOutputStream();
 
     outputStream.write(mybytearray, 0, mybytearray.length);
     outputStream.flush();
     bufferedInputStream.close();
     outputStream.close();
           client.close();
            
           text.setText("File Sent");
      
      
    } catch (UnknownHostException e) {
     e.printStackTrace();
    } catch (IOException e) {
     e.printStackTrace();
    }

服务器端

    private static ServerSocket serverSocket;
    private static Socket clientSocket;
    private static InputStream inputStream;
    private static FileOutputStream fileOutputStream;
    private static BufferedOutputStream bufferedOutputStream;
    private static int filesize = 10000000; 
    private static int bytesRead;
    private static int current = 0;
 
    public static void main(String[] args) throws IOException {
 
 
        serverSocket = new ServerSocket(4444); 
 
        System.out.println("Server started. Listening to the port 4444");
 
 
        clientSocket = serverSocket.accept();
 
 
        byte[] mybytearray = new byte[filesize];  
 
        inputStream = clientSocket.getInputStream();
        fileOutputStream = new FileOutputStream("/sdcard/DCIM/Camera/BaseAhri.jpg");
        bufferedOutputStream = new BufferedOutputStream(fileOutputStream);});
       System.out.println("Receiving...");
 
        
        bytesRead = inputStream.read(mybytearray, 0, mybytearray.length);
        current = bytesRead;
 
        do {
            bytesRead = inputStream.read(mybytearray, current, (mybytearray.length - current));
            if (bytesRead >= 0) {
                current += bytesRead;
            }
        } while (bytesRead > -1);
 
 
        bufferedOutputStream.write(mybytearray, 0, current);
        bufferedOutputStream.flush();
        bufferedOutputStream.close();
        inputStream.close();
        clientSocket.close();
        serverSocket.close();
 
        System.out.println("Sever recieved the file");
 
    }

服务器端错误

[2014-01-22 15:20:15 - AndroidSocketSERVER] ActivityManager: 启动: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.javacodegeeks.android.androidsocketserver /.服务器}

[2014-01-22 15:20:15 - AndroidSocketSERVER] ActivityManager：错误类型 3

[2014-01-22 15:20:15 - AndroidSocketSERVER] ActivityManager：错误：活动类 {com.javacodegeeks.android.androidsocketserver/com.javacodegeeks.android.androidsocketserver.Server} 不存在。

在客户端发送后它崩溃了。不确定这是否是一个错误，因为我的服务器有问题。

Answer 1

确实如此。您需要在应用程序中构建自己的套接字服务器并从中播放视频。然后您将可以控制字节输入流并将下载的部分保存到文件，而相同的部分将转到媒体播放器