How to check when two object collisions

Question

I have two moving image views in a little game I'm making, anyway they are always in the same Y so im just want to check when they are in the same x any help?

Answer 1

int [] object1Position = new int[2];  // declare int array for x,y object position
int [] object2Position = new int[2];  // the same

imageView1.getLocationOnScreen(object1Position); // get imageView1 position
imageView2.getLocationOnScreen(object2Position); // get imageView2 position

public boolean checkColisionOnXAxis()
{
    if (object1Position[0] == object2Position[0] )
       return true;
    return false;
}

just an idea.. but you need to get at each time the current location of the objects.. so you need timer or something like that to get the current position