Canvas Custom Drawing in Compose — drawCircle, Path, Charts, and Touch Drawing

Canvas provides low-level drawing primitives for custom graphics. Master drawCircle, Path, and implement line charts and touch-responsive drawings. Drawing Circles and Shapes Use Canvas with drawCircle and drawRect: Canvas ( modifier = Modifier . fillMaxSize ()) { val radius = 50 . dp . toPx () // Draw circle drawCircle ( color = Color . Blue , radius = radius , center = Offset ( size . width / 2 , size . height / 2 ) ) // Draw rectangle drawRect ( color = Color . Red , topLeft = Offset ( 100f , 100f ), size = Size ( 200f , 200f ) ) } Creating Complex Paths Build custom shapes with Path: Canvas ( modifier = Modifier . fillMaxSize ()) { val path = Path (). apply { moveTo ( size . width / 2 , 50f ) lineTo ( size . width - 50f , size . height - 50f ) lineTo ( 50f , size . height - 50f ) close () } drawPath ( path , color = Color . Green , style = Stroke ( width = 3f )) } Drawing Line Charts Visualize data with canvas-based charts: @Composable fun LineChart ( data : List < Float >, modifie