Custom Layout

CurvedContainer.kt

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

    /* paint object for coloring the canvas */
    private val mPaint = Paint()
    /* path that will be drawn to achieve the shape */
    private val path = Path()
    /* arcs will create the effect of curved corners */
    private val leftArc = RectF()
    private val rightArc = RectF()
    /* offset values for our curved corners */
    private val xAxisOffset = 100f
    private val yAxisOffset = 100f

    init {
        /* setting the background as transparent as we're drawing the view ourself */
        setBackgroundColor(Color.TRANSPARENT)
        setLayerType(View.LAYER_TYPE_HARDWARE, null)
        mPaint.apply {
            style = Paint.Style.FILL
            color = Color.WHITE
            isAntiAlias = true
            clipChildren = true
        }
    }

    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
        super.onSizeChanged(w, h, oldw, oldh)
    }

    override fun onDraw(canvas: Canvas?) {
        super.onDraw(canvas)
    }

}