Update activity in child threads

============ Problem Description ============

The problem is this:
There is a mainactivity class in Mainactivity.java, there is a Service class in Service.java, and there is a MyThread class in Mythread.java.
Mainactivity opens the service in service, the thread in the Mythread is turned on, and because the GPS service is used, the

Locationmanager = Locmanager;context.getmainlooper ()

So now I want to ask: 1.mainactivity can finally pass the context to mythread and how to get the object in the thread, such as button
Thank you!

============ Solution 1============

As you said, it's okay to pass the context in.

Update activity in child threads