Running code in main thread from another thread

Question

In an android service I have created thread(s) for doing some background task.

I have a situation where a thread needs to post certain task on main thread\'s message

Answer 1

Kotlin versions

When you are on an activity, then use

runOnUiThread {
    //code that runs in main
}

When you have activity context, mContext then use

mContext.runOnUiThread {
    //code that runs in main
}

When you are in somewhere where no context available, then use

Handler(Looper.getMainLooper()).post {  
    //code that runs in main
}