我正在传递地图选项,但这似乎与缩放级别没有任何关系？它保持相同的低缩放级别.
我错过了什么？
我错过了什么？
func openMapForPlace() {
let regionDistance:CLLocationDistance = 10000
var coordinates = CLLocationCoordinate2DMake(detailItem!.geoLatitude,detailItem!.geoLongitude)
let regionSpan = MKCoordinateRegionMakeWithDistance(coordinates,regionDistance,regionDistance)
var options = [
MKLaunchOptionsMapCenterKey: NSValue(MKCoordinate: regionSpan.center),MKLaunchOptionsMapSpanKey: NSValue(MKCoordinateSpan: regionSpan.span)
]
var placemark = MKPlacemark(coordinate: coordinates,addressDictionary: nil)
var mapItem = MKMapItem(placemark: placemark)
mapItem.name = detailItem!.cityName
mapItem.openInMapsWithLaunchOptions(options)
}
Apple的文档没有提及它,但是从测试来看,如果将一个或多个MKMapItem添加到地图中,似乎openInMapsWithLaunchOptions()似乎忽略了MKLaunchOptionsMapSpanKey选项.
以下代码按预期工作,修改距离参数时正确调整地图缩放(尝试使用1000和10000000,以查看差异)：
func openMapForPlace() {
let regionDistance: CLLocationDistance = 10000000
let coordinates = CLLocationCoordinate2DMake(40,0)
let regionSpan = MKCoordinateRegionMakeWithDistance(coordinates,regionDistance)
let options = [
MKLaunchOptionsMapCenterKey: NSValue(MKCoordinate: regionSpan.center),MKLaunchOptionsMapSpanKey: NSValue(MKCoordinateSpan: regionSpan.span)
]
MKMapItem.openMapsWithItems([],launchOptions: options)
}
但是,只要将一个MKMapItem添加到地图中,缩放就会停止工作.
func openMapForPlace() {
let regionDistance: CLLocationDistance = 10000000
let coordinates = CLLocationCoordinate2DMake(40,MKLaunchOptionsMapSpanKey: NSValue(MKCoordinateSpan: regionSpan.span)
]
let placemark = MKPlacemark(coordinate: coordinates,addressDictionary: nil)
let mapItem = MKMapItem(placemark: placemark)
mapItem.name = "Test"
MKMapItem.openMapsWithItems([mapItem],launchOptions: options)
}
