Draw on UIImageView

Question

I have a following image on uiimageview and i want to draw a small dot on that image can somebody tell me how i can do that

enter image description here

i want to create a radar kind a view so i need to easily add a small circle and remove it after a some time i have try drawing on uiimage view but it always create a new uiimage and apply it to uiimageview is there a way to do this ?

Of course you can. Just set its center property or change the frame directly (x and y coordinates). — Dominik Hadl, Jan 06 '15 at 10:27

Mrunal · Answer 1 · 2015-01-06T14:18:24.533

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Hope this helps:

UIImageView *smallCircle = //alloc init assign your image

[smallCircle setCenter: CGPointMake (x value, y value)]

[bigCircleImageView.superview addSubview: smallCircle];
[bigCircleImageView.superview bringSubviewToFront: smallCircle];

edited Jan 06 '15 at 14:18

answered Jan 06 '15 at 10:33

Mrunal

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how can i add this on my current imageview i try to add this on my imageview but it dosent show this is what i do UIImage *myScreenShot = [UIImage imageNamed:@"point.png"]; UIImageView *smallCircle = [[UIImageView alloc] initWithImage:myScreenShot]; [smallCircle setCenter: CGPointMake (self.imageView.frame.origin.x,self.imageView.frame.origin.y)]; – Kamal Upasena Jan 06 '15 at 11:41
You require to add this as subview along with big circle image. And then bring this view on top. – Mrunal Jan 06 '15 at 14:19

score 0 · Answer 2 · edited May 23 '17 at 10:32

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Annoyingly you are unable to add subviews to UIImageView see here You could add both the UIImageViews to an empty view and position them correctly though.

edited May 23 '17 at 10:32

Community

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answered Jan 06 '15 at 14:36

Cocoadelica

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Draw on UIImageView

2 Answers2