基于套接字连接的应用程序在Android 2.3中效果很好，但在Android 4.2中效果不佳

Question

I have developed an android app, which works well in android 2.3 but not in android 4.2.

The app creates a socket connection and sends data to the server. The problem is with socket connection. Please help me.

The code for socket connection is:

Socket socket = new Socket();
int timeout=30000;
socket.connect(sockaddr, timeout);
//sockaddr is user defined.
//sockaddr address has server ip address and port

Answer 1

since Android Version 3.0 (API 11) it is not allowed to make network activity on the main thread of your app.

Here a Link to the Exception that (i think) is thrown by your app (look at your logcat for more information). NetworkOnMainThreadException

Try to do all your network activities with an AsyncTask .

I hope this will help you. =)

Answer 2

从Android 3.0开始，您需要异步执行Socket连接，主线程不允许这样做。