CMyae

<?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"
    android:id="@+id/constraint_layout"
    android:background="?android:attr/colorBackground"
    tools:context=".ui.login.LoginActivity"

CMyae

override fun onDraw(canvas: Canvas?) {
    super.onDraw(canvas)
    try {
    ...
    borderPath.set(path)
    path.lineTo(width.toFloat(), height.toFloat())
    path.lineTo(0f, height.toFloat())
    canvas?.drawPath(path, pathPaint)
    canvas?.drawPath(borderPath, borderPathPaint)
    } catch (e: Exception) {

CMyae

    pathPaint.apply {
      isAntiAlias = true
      style = Paint.Style.FILL
      color = fillColor
    }

CMyae

    borderPathPaint.apply {
      isAntiAlias = true
      strokeWidth = 8f
      style = Paint.Style.STROKE
      color = Color.parseColor("#FFFC4F47")
    }

CMyae

private fun drawBezierCurve(canvas: Canvas?) {

    try {

      if (points.isEmpty() && conPoint1.isEmpty() && conPoint2.isEmpty()) return

      path.reset()
      path.moveTo(points.first().x, points.first().y)

      for (i in 1 until points.size) {

CMyae

private fun calculateConnectionPointsForBezierCurve() {
    try {
      for (i in 1 until points.size) {
        conPoint1.add(PointF((points[i].x + points[i - 1].x) / 2, points[i - 1].y))
        conPoint2.add(PointF((points[i].x + points[i - 1].x) / 2, points[i].y))
      }
    } catch (e: Exception) {
    }
  }

CMyae

  //Sample Data points -> 50,25,100,80,...(your data to be represented in graph)
  private fun calculatePointsForData() {

    val bottomY = getLargeBarHeight() - CURVE_BOTTOM_MARGIN
    val xDiff = width.toFloat() / data.size

    val maxData = data.maxBy { it.amount }!!.amount

    for (i in 0 until data.size) {
      val y = bottomY - (data[i].amount / maxData * bottomY)