XLayout sample

MyViewController.kt

package com.mycompany.myapp

import com.controlj.layout.FrameGroup
import com.controlj.layout.Gravity
import com.controlj.layout.HorizontalGroup
import com.controlj.layout.IosUxHost
import com.controlj.layout.Layout
import com.controlj.layout.VerticalGroup
import com.controlj.layout.VerticalGroup.Companion.verticalGroup
import com.controlj.shim.IosCxFactory
import com.controlj.shim.addView
import org.robovm.apple.uikit.UIViewController
import org.robovm.apple.uikit.UIButton
import org.robovm.apple.uikit.UILabel
import org.robovm.apple.uikit.UIColor
import org.robovm.apple.coregraphics.CGRect
import org.robovm.apple.uikit.UIFont
import org.robovm.apple.uikit.NSTextAlignment
import org.robovm.apple.uikit.UIButtonType
import org.robovm.apple.uikit.UIControlState
import org.robovm.apple.uikit.UIControl
import org.robovm.apple.uikit.UIEvent

class MyViewController : UIViewController() {
    private var clickCount = 0
    private val label: UILabel = UILabel()
    private val button = UIButton(UIButtonType.RoundedRect)

    override fun loadView() {
        // VerticalGroup is like a vertical LinearLayout.
        val group = VerticalGroup().apply {
            layout.widthMode = Layout.Mode.MatchParent
            layout.heightMode = Layout.Mode.MatchParent
            // addView adds a native UI element with a Layout to control its size.
            addView(button, Layout (widthMode= Layout.Mode.MatchParent, gravity = Gravity.Center ))
            addView(label, Layout ( widthMode = Layout.Mode.WrapContent, gravity = Gravity.Center ))
        }
        // IosUxHost is a native container for XLayout groups (FrameGroup, VerticalGroup, HorizontalGroup)
        view = IosUxHost(group)
        view.backgroundColor = UIColor.lightGray()
        // Setup label.
        label.font = UIFont.getSystemFont(24.0)
        label.textAlignment = NSTextAlignment.Center
        label.text = "Testing..."

        // Setup button.
        button.setTitle("Click me!", UIControlState.Normal)
        button.titleLabel.font = UIFont.getBoldSystemFont(22.0)
        button.addOnTouchUpInsideListener { control: UIControl?, event: UIEvent? ->
            label.text = "Click Nr. " + ++clickCount
        }
        button.backgroundColor = UIColor.white()
    }
}