"Little essay" Creation of message in Android--new message with Handle#obtainmessage ()

private void Testhandlermessage () {Message msg = new Message ();　　Msg.what = 1; Handler.sendmessage (msg);}

In many Android reference books, there is often a fragment similar to the above code.

And when it comes to real-contact projects, you need to have a better grasp of the performance when you can see this code snippet:

private void Obtainmessagetest () {Message msg = Handler.obtainmessage ();　　Msg.what = 1;  Handler.sendmessage (msg);} Conclusion: Two methods of creating a message have a certain user base, but it is better to use Handler#obtainmessage () in a project that needs to consider performance. Because the Obtainmessage () method does not create a new message, it removes a free message from the Messagepool for developers to use.