I have some code that can mostly run on a worker thread but one single line must run on the UI thread.

So I used to have this code that gave a lot of ANRs.

methodOnWorkerThread(){
    ..some calls...
    runOnUIThread{
        ..some more calls...
        callThatRequiresTheUIThreadAndGivesANRs()
    }
}

I changed that code to be:

methodOnWorkerThread(){
    ..some calls...
    ..some more calls...
    runBlocking(Dispatchers.Main) {
        callThatRequiresTheUIThreadAndGivesANRs()
    }
}

And with that all my ANRs went away.

I realize ..some more calls... could be the culprit but all the ANR stack traces had callThatRequiresTheUIThreadAndGivesANRs().

So is there a difference as far as ANRs are concerned between runOnUIThread and runBlocking(Dispatchers.Main)?