Android studio layout design issue : I have a problem in the layout design in android studio, in android studio I set 720x1280 in the design preview option. Its the first image. But when i build the apk and install it in the device, the same activity looks like the second image. Its like it's cut. 

I need that in the first image, the blank space "expands" because i need to put the title long across in the second screen. The sentence is "Ingrese fecha de vencimiento" but only shows "Ingrese fecha de" .

How can i fix this?

[![enter image description here][1]][1]
  [1]: https://i.stack.imgur.com/hRluY.png