Drawing 2 circles on canvas

Question

I am trying to make two circles:

Here is how I do it:

Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_4444); Canvas c = new Canvas(bmp); RectF rect = new RectF(0,0,width,width); Paint paint = new Paint(); drawCircles(paint, c, width, height, width); ImageView img = (ImageView) findViewById(R.id.imageView1); img.setImageBitmap(bmp); img.setScaleType(ScaleType.FIT_CENTER); 

And here is my drawCircles() method:

 private void drawCircles(Paint paint, Canvas c, int width, int height, int radius) { paint.setARGB(255, 255 , 10, 21); paint.setStrokeWidth(10); paint.setAntiAlias(true); paint.setStrokeCap(Paint.Cap.BUTT); paint.setStyle(Paint.Style.STROKE); if(width < height && radius == 0){ radius = width/2; height = width; } else if (radius == 0){ radius = height/2; width = height; } Paint paint2 = new Paint(); paint2.setARGB(255, 255 , 10, 21); paint2.setStrokeWidth(10); paint2.setAntiAlias(true); paint2.setStrokeCap(Paint.Cap.BUTT); paint2.setStyle(Paint.Style.STROKE); c.drawCircle(width/2, height/2, radius-10, paint); c.drawCircle(width/2, height/2, 50, paint2); } 

I don’t know why, but I get only one circle, a small one (the one drawn with paint2 ). What could be the reason?

Answer 1

Try this code. Hope this helps :)

 public class SimpleCircleActivity extends Activity { private CircleDemoView circledemoView ; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); circledemoView =new CircleDemoView(this); setContentView(circledemoView); } private class CircleDemoView extends View { public CircleDemoView(Context context) { super(context); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); Paint p = new Paint(); p.setColor(Color.RED); DashPathEffect dashPath = new DashPathEffect(new float[]{5,5}, (float)1.0); p.setPathEffect(dashPath); p.setStyle(Style.STROKE); for (int i = 0; i < 2; i ++) { canvas.drawCircle(200, 200, 50+(i*40), p); } invalidate(); } } }