Android :: Firing An Event By Code?

Is any way to build and fire an event (e.g. on click event) in android applications programmatically.

I have an Activity (lets call it A) with multiple views (5 ImageView for example). And a normal Java class (lets call it B) which is used by my Activity. here is an instance of B in my Activity. If user click on a View (Image View) the view OnClickListener calls a method in B In B, if operation is successful, it will call back a method in activity again. in activity method, It will change image or state for clicked ImageView.

I the other hand: click on view (x) in Activity -------> B.doSomething() --------> A.bIsDone() -----> change image for view (x) with normal execution, its working and there is no problem. the problem is that I want to simulate this process to be automatic, my code looks like this:

CODE:.............

The issue is that, it won't render anything, until the end of the loop.

I tried to put the loop in another Thread, but its throwing exception: android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.

What can i do for this issue? i was think generate an click event on view (by code), to see it can help or not.