Когда открывается клавиатура, скроллить макет диалога в самый низ

example.java

        View vDialogContent = inflateView(getActivity(), R.layout.w_dialog);
        ScrollView vScrollableContainer = vDialogContent.findViewById(R.id.vScrollableContainer);
        View view = ResizableFrameLayout.wrap(vDialogContent, () ->
                vScrollableContainer.post(() -> {
                    View vContent = vScrollableContainer.getChildAt(0);
                    vScrollableContainer.scrollTo(0, vContent.getMeasuredHeight());
                }),
                null);

ResizableFrameLayout.kt

import android.annotation.TargetApi
import android.content.Context
import android.os.Build
import android.util.AttributeSet
import android.view.View
import android.widget.FrameLayout

open class ResizableFrameLayout : FrameLayout {

    companion object {
        @JvmStatic
        fun wrap(view: View,
                 onIncreaseHeight: Runnable? = null,
                 onDecreaseHeight: Runnable? = null): View {

            val vResizableContainer = object : ResizableFrameLayout(view.context) {
                override fun onIncreaseHeight() {
                    onIncreaseHeight?.run()
                }

                override fun onDecreaseHeight() {
                    onDecreaseHeight?.run()
                }
            }
            vResizableContainer.addView(view)
            return vResizableContainer
        }
    }

    @JvmOverloads
    constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) :
            super(context, attrs, defStyleAttr)

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int, defStyleRes: Int) :
            super(context, attrs, defStyleAttr, defStyleRes)

    open fun onDecreaseHeight() {}

    open fun onIncreaseHeight() {}

    override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
        val proposedHeight = View.MeasureSpec.getSize(heightMeasureSpec)
        val actualHeight = height

        if (actualHeight > proposedHeight) {
            onDecreaseHeight()
        } else if (actualHeight < proposedHeight) {
            onIncreaseHeight()
        }
        super.onMeasure(widthMeasureSpec, heightMeasureSpec)
    }
}