get layout height and width at run time android

Question

How can I get width and height of a linear layout which is defined in xml as fill_parent both in height and width? I have tried onmeasure method but I dont know why it is no

Answer 1

A generic approach using Kotlin based on MGDroid's answer for API 16+.

/**
 * Align height of a container from wrap-content to actual height at runtime.
 * */
private fun  alignContainerHeight(container: T) {
    container.viewTreeObserver.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlobalLayoutListener {
        override fun onGlobalLayout() {

            // Obtain runtime height
            val availableHeight = container.measuredHeight

            if (availableHeight > 0) {
                container.viewTreeObserver.removeOnGlobalLayoutListener(this)
                setContainerHeight(container, availableHeight)
            }
        }
    })
}

/**
 * Note: Assumes that the parent is a LinearLayout.
 * */
private fun  setContainerHeight(container: T, availableHeight: Int) {
    val availableWidth = container.measuredWidth
    val params = LinearLayout.LayoutParams(availableWidth, availableHeight)

    // Note: getLayoutParams() returns null if no parent exists
    if (container.layoutParams != null) {
        container.layoutParams = params
    }
}