Question

Xcode Place an Image where the user touches

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
UITouch *touch=[[event allTouches]anyObject];
CGPoint point= [touch locationInView:touch.view];

UIImage *image = [[UIImage alloc]initWithContentsOfFile:@"BluePin.png"];
[image drawAtPoint:point];
}

Basically touch screen image should appear where touched but nothing appears…

Answer 1

1. You should init a UIImage like this:

   UIImage *image = [UIImage imageNamed:@"BluePin"];
   

2. You should use a UIImageView to contain a UIImage, you can not put a UIImage into UIView directly.

update

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    UITouch *touch=[[event allTouches]anyObject];
    CGPoint point= [touch locationInView:touch.view];

    UIImage *image = [UIImage imageNamed:@"BluePin"];
    CGRect rect=CGRectMake(point.x, point.y, image.size.width, image.size.height);
    UIImageView *imageView=[[UIImageView alloc]initWithFrame:rect];
    [imageView setImage:image];
    [self.view addSubview:imageView];
}