Why use Interaction Manager ?

Interaction Manager is very important because of React Native threads. There are two threads available in React Native, one is a Javascript UI thread that handles drawing updates to the screen, and another thread is used for all tasks not on the UI thread.

Since there is only one thread for making UI updates, it causes overload and drops frames, especially during the execution of navigation screen animations. We have to use the Interaction Manager to ensure that our function is executed after these animations occur so that we do not drop frames on the UI thread. It is very difficult to draw a new screen while it is being animated and is often too much for the thread to handle.

The Interaction Manager is the native module that allows long-running work to be scheduled until an “interaction” has finished. We can call the runAfterInteractions() => {} to be continued interaction. We can also define our own interactions. It is used to run JavaScript smoothly: