theminimaldev

val inflater: LayoutInflater = LayoutInflater.from(this)
val newView = inflater.inflate(R.layout.new_view, rootView, attachToRoot)

theminimaldev

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val rootView: ViewGroup = findViewById(R.id.activity_main)

        val inflater = LayoutInflater.from(this)
        val red = inflater.inflate(R.layout.rectangle, rootView, true)

theminimaldev

val lime = inflater.inflate(R.layout.rectangle, rootView, false)
lime.setBackgroundColor(ContextCompat.getColor(this, R.color.lime))
rootView.addView(lime)

theminimaldev

rootView.removeViewInLayout(red)
rootView.removeViewInLayout(lime)

theminimaldev

CustomPaint(
  painter: DrawCircle(getRandomColor(), 80.0),
);

theminimaldev

class DrawCircle extends CustomPainter {
  Paint circlePaint;
  final radius;
  DrawCircle(Color color, this.radius) {
    this.circlePaint = Paint()
      ..color = color
      ..style = PaintingStyle.fill;
  }
  @override
  void paint(Canvas canvas, Size size) {

theminimaldev

GestureDetector(
  child: Circle(getRandomColor(), circleState),
  onTap: onCircleTap,
  )
);

void onCircleTap() {
    circleState.currentState.setColor(getRandomColor());
}

theminimaldev

CustomPaint(
    size: Size(CIRCLE_RADIUS * 2, CIRCLE_RADIUS * 2),
    painter: DrawCircle(color, CIRCLE_RADIUS),
);

theminimaldev

CustomPaint(
    size: Size(CIRCLE_RADIUS, CIRCLE_RADIUS),
    painter: DrawCircle(color, CIRCLE_RADIUS)
);

theminimaldev

ClipRect(
  child: CustomPaint(
    size: Size(CIRCLE_RADIUS, CIRCLE_RADIUS),
    painter: DrawCircle(color, CIRCLE_RADIUS)
  )
);