How to make CheckToken automatically?

Question

Android

Hello!
I'm interested in this question, how to make it so that when I start the activity, I automatically send a token to the server? The token is stored in SharedPreferences, and accordingly, if it is there, then we check it on the server, if it is not there, then we drive the user to the authorization screen. What is better to use for this?

Answer 1

Use programming to automate. Write a series of instructions that will send a token to the server when the activity is launched. For example:

if(preferencess.getString("token", null) != null)
    sendTokenToServer(token);