Android Constraint Layout Programmatically?

Question

In iOS I\'m a big fan of deleting the storyboard and using the Cartography framework to lay everything out in code. This is stolen from Cartography\'s github:

Answer 1

I ran into the exact same dilemma coming from iOS where I feel like building views programatically is a more common practice.

I am actually porting the Stevia library to android with Kotlin here, since the new ConstraintLayout is quite similar to our beloved Autolayout.

Here is how you define a simple view

class MyView(context: Context): ConstraintLayout(context) {

  val label = TextView(context)

  init {

      // View Hierarchy
      subviews(
          label
      )

      // Layout
      label.centerInParent()

      // Style
      label.style {
          textSize = 12F
      }
  }}

Be aware that this is Pure native Constraint layout under the hood, as explained by Martin's answer.

It's only the beginning but it has proven to be a delightful way to write android views in Kotlin so far so I thought I'd share. Hope this helps :)