How to use refresh button and chart in the same view

[kpt]

Please Help with code. Thanks

[gaetan]

Given the following activity:

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

	<LinearLayout
		android:id="@+id/mainLayout"
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:orientation="vertical"
		app:layout_constraintBottom_toBottomOf="parent"
		app:layout_constraintTop_toTopOf="parent"
		tools:layout_editor_absoluteX="1dp">

		<Button
			android:id="@+id/button1"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_weight="0"
			android:text="Reload data" />

	</LinearLayout>


</androidx.constraintlayout.widget.ConstraintLayout>

We can update the view in the layout:

class MainActivity : AppCompatActivity() {

	var chartView:ChartView? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
		val layout = findViewById<LinearLayout>(R.id.mainLayout)

		buildChartView(layout, listOf(1, 2, 3))

		val button = findViewById<Button>(R.id.button1)
		button.setOnClickListener {
			buildChartView(layout, listOf(1, 2, 3, 4))
		}
	}

	private fun buildChartView(layout: LinearLayout, list: List<Int>) {
		chartView?.let { layout.removeView(it) }
		val newView = ChartView(this, list)
		newView.layoutParams =
			LinearLayout.LayoutParams(
				LinearLayout.LayoutParams.MATCH_PARENT,
				LinearLayout.LayoutParams.MATCH_PARENT, 1f
			)
		layout.addView(newView)
		chartView = newView
	}

}

class ChartView(context: Context, data: List<Int>) : VizContainerView(context) {
	init {
		chart(data) {
			val xDimension = quantitative({ domain.toDouble() })
			val yDimension = quantitative({ domain.toDouble() })
			line(xDimension, yDimension)
		}
	}
}

[kpt]

Thank You So much again for the help.