mkmapview

来源： https://stackoverflow.com/questions/64471948/remove-annotation-when-slider-moves-swift

来源： https://stackoverflow.com/questions/64471948/remove-annotation-when-slider-moves-swift

来源： https://stackoverflow.com/questions/63020138/how-to-custom-the-image-of-mkannotation-pin

来源： https://stackoverflow.com/questions/7780981/how-to-validate-latitude-and-longitude

来源： https://stackoverflow.com/questions/7780981/how-to-validate-latitude-and-longitude

来源： https://stackoverflow.com/questions/7780981/how-to-validate-latitude-and-longitude

来源： https://stackoverflow.com/questions/7780981/how-to-validate-latitude-and-longitude

来源： https://stackoverflow.com/questions/63471091/tracking-user-location-mkpolyline-getting-drawn-from-utc-coordinates-0-0-to

来源： https://stackoverflow.com/questions/63406320/how-to-stop-autofilling-address-in-textfields-in-swift

问题 It looks like I'm running into an issue where I can reliably cause my MKMapView to crash if I'm adding annotations while the map's visible region is being changed. I've boiled the code that is causing it down to a pretty simple implementation, and I'm reproducing it here: NSMutableArray *pointAnnotationArray = [[NSMutableArray alloc] init]; MKCoordinateRegion coordRegion = [mapViewOutlet region]; float randMax = 0.1; for (int i = 0; i < 100; i++){ float randomDeviation1 = (((float)