Android Layout editor ConstraintLayout

Question

I am running Android Studio (put on latest stabel upgrade the other day. When I use the Layout editor it seems to prefer ConstraintLayout. When I move two widgets (one TextV

Answer 1

Please check ConstraintLayout here:

https://developer.android.com/training/constraint-layout/index.html

When you drop a view into the Layout Editor, it stays where you leave it even if it has no constraints. However, this is only to make editing easier; if a view has no constraints when you run your layout on a device, it is drawn at position [0,0] (the top-left corner).

In other words, it means you must add at least one horizontal and one vertical constraint for the view