尝试在MKAnnotation中使用UIImage

Question

I try to have a UIImage in a MKAnnotation:

UIView *leftCAV = [[UIView alloc] initWithFrame:CGRectMake(0,0,32,32)];
    leftCAV.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"..."]];
pin.leftCalloutAccessoryView = leftCAV;

The code is run, but I don't have a transparent background

See that:

http://img19.imageshack.us/f/1234wr.png/

Have an idea?

thanks :)

Answer 1

Any reason not just using an imageView?

UIImageView *iconView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Location.png"]];
annotationView.leftCalloutAccessoryView = iconView;

Answer 2

Did you try:

leftCAV.backgroundColor = [UIColor clearColor];

?

I'll assume your image is 32x32. Does it have a transparent background? (I could not tell if what I was looking at at the link you provided was what you intended. There's too much going on on that site! :-)

Answer 3

Add this leftCAV.opaque=NO; .