Android draw point

Question

how to draw full circle or point with canvas? I using canvas and path + paint classes

my code:

@Override
public boolean onTouchEvent(MotionEvent event) {
    float eventX = event.getX();
    float eventY = event.getY();
    System.out.println(event.getAction());
    switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:
        path.moveTo(eventX, eventY);
        return true;
    case MotionEvent.ACTION_MOVE:
        path.lineTo(eventX, eventY);
        break;
    case MotionEvent.ACTION_UP:
        path.addCircle(eventX, eventY, .1F, Path.Direction.CW);
        break;
    default:
        return false;
    }

    // Schedules a repaint.
    invalidate();
    return true;
}

And are you actually drawing your `path` object in `onDraw` method? — Andrei Mankevich, Jun 04 '14 at 13:29
yes. @Override protected void onDraw(Canvas canvas) { canvas.drawPath(path, paint); } — BenG, Jun 04 '14 at 13:29

score 4 · Answer 1 · edited May 23 '17 at 10:26

4

You can draw Circle by overriding onDraw() of your custom view. Check following link for drawing basics - http://developer.android.com/training/custom-views/custom-drawing.html

protected void onDraw(Canvas canvas) {
 super.onDraw(canvas);
 canvas.drawCircle(x, y, radius, paint);
}

Also, similar replies are here - How to draw circle by canvas in Android?

edited May 23 '17 at 10:26

Community

1
1

answered Jun 04 '14 at 13:33

Kanak Sony

1,937
1
23
37

I want solid circle not with white space inside – BenG Jun 04 '14 at 13:36
Check PaintStyle API, for different available styles http://developer.android.com/reference/android/graphics/Paint.Style.html You should try here FILL and FILL_AND_STROKE. – Kanak Sony Jun 04 '14 at 13:39

score 1 · Answer 2 · answered Nov 21 '17 at 10:48

1

Your paint must be "full", for that you must write this

paint.setStyle(Paint.Style.FILL);

then just draw your circle

canvas.drawCircle(x, y, radius, paint);

I hope it will be helpfull

answered Nov 21 '17 at 10:48

Arman Manucharyan

227
1
4
18

Android draw point

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