Dispatch-queue Questions

I fetch data and display in a tableview, the problem is the data is not executing in the correct order. i have tried:

I have write a class to handle dispatchqueues. i have write a static method to invoke main thread. i pass a

Problem want to perform operation bitwiseand(uiimage1, uiimage2) this is function of opencv framework. uiimage1 is already

I want to use below code in objective c. var recordingqueue = dispatchqueue(label: "recordingqueue", qos:

I am struggling to trigger the logic responsible for changing the view at the right time. let me explain. i have a view model that contains

Here in myapicall() method am calling another method i.e., costatusapi() for every 5 seconds upto 90 seconds.