IssueTracker

ConstraintLayout version: Beta1

I spend the entire to figure out why my custom viewgroups broken as soon as i upgraded to beta1 from alpha2 version of the constraintlayout.

I created a very simple project and found constraints from kotlin class are not respected anymore in beta1.


class CustomView @JvmOverloads constructor(
    context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
) : ConstraintLayout(context, attrs, defStyleAttr) {

    init {
        initialize()
    }

    private fun initialize() {
        if (id == NO_ID) {
            id = View.generateViewId()
        }
        val tv = TextView(context)
        val layoutParams = LayoutParams(LayoutParams.MATCH_CONSTRAINT, LayoutParams.MATCH_CONSTRAINT)
        tv.text = "Something"
        tv.id = View.generateViewId()
        layoutParams.startToStart = id
        layoutParams.endToEnd = id
        layoutParams.topToTop = id
        layoutParams.bottomToBottom = id
        tv.layoutParams = layoutParams
        addView(tv)

      I tried this way too same result
       /*  val set = ConstraintSet()
        set.clone(this)
        set.connect(tv.id, ConstraintSet.LEFT, id, ConstraintSet.LEFT)
        set.connect(tv.id, ConstraintSet.RIGHT, id, ConstraintSet.RIGHT)
        set.connect(tv.id, ConstraintSet.TOP, id, ConstraintSet.TOP)
        set.connect(tv.id, ConstraintSet.BOTTOM, id, ConstraintSet.BOTTOM)
        set.applyTo(this)*/
    }
}

add this view to any xml and the results will be different in beta1 vs alpha2 release. It works perfectly fine in alpha2 but nothing shown on screen on beta1