本文介绍了在MapView中搜索注释的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我遵循了 how -to-search-for-location-using-apples-mapkit 有关在mapView中搜索annotations的信息并使用MKLocalSearch在世界范围内进行搜索.
I followed a how-to-search-for-location-using-apples-mapkit about searching annotations in mapViewand its searching around the world with MKLocalSearch.
但是，我不想使用MKLocalSearch进行搜索，而是搜索自己的annotations，例如，我这样添加自己:
However, I don't want to to search with MKLocalSearch but search my own annotations i added myself like these for example:
let LitzmanLocation = CLLocationCoordinate2DMake(32.100668,34.775192)
// Drop a pin
let Litzman = MKPointAnnotation()
Litzman.coordinate = LitzmanLocation
Litzman.title = "Litzman Bar"
Litzman.subtitle = "נמל תל אביב 18,תל אביב"
mapView.addAnnotation(Litzman)
let ShalvataLocation = CLLocationCoordinate2DMake(32.101145,34.775163)
// Drop a pin
let Shalvata = MKPointAnnotation()
Shalvata.coordinate = ShalvataLocation
Shalvata.title = "Shalvata"
Shalvata.subtitle = "האנגר 28,נמל תל אביב"
mapView.addAnnotation(Shalvata)
let MarkidLocation = CLLocationCoordinate2DMake(32.074961,34.781679)
// Drop a pin
let Markid = MKPointAnnotation()
Markid.coordinate = MarkidLocation
Markid.title = "Markid"
Markid.subtitle = "אבן גבירול 30,תל אביב"
mapView.addAnnotation(Markid)
这是我的代码:
import UIKit
import MapKit
import CoreLocation
protocol HandleMapSearch {
func dropPinZoomIn(placemark:MKPlacemark)
}
class MapViewController: UIViewController,MKMapViewDelegate, CLLocationManagerDelegate,UISearchBarDelegate{
@IBOutlet var mapView: MKMapView!
var resultSearchController:UISearchController? = nil
var selectedPin:MKPlacemark? = nil
@IBAction func MapSearchController(sender: AnyObject) {
resultSearchController!.hidesNavigationBarDuringPresentation = false
self.resultSearchController!.searchBar.delegate = self
presentViewController(resultSearchController!, animated: true, completion: nil)
self.resultSearchController!.searchBar.barTintColor = UIColor.blackColor()
self.resultSearchController!.searchBar.placeholder = "חפש ברים"
self.resultSearchController!.dimsBackgroundDuringPresentation = true
self.resultSearchController!.searchBar.sizeToFit()
}
override func viewDidLoad() {
super.viewDidLoad()
let locationSearchTable = storyboard!.instantiateViewControllerWithIdentifier("LocationSearchTable") as! LocationSearchTable
resultSearchController = UISearchController(searchResultsController: locationSearchTable)
resultSearchController?.searchResultsUpdater = locationSearchTable
locationSearchTable.mapView = mapView
locationSearchTable.handleMapSearchDelegate = self
}
}
}
extension MapViewController: HandleMapSearch {
func dropPinZoomIn(placemark:MKPlacemark){
// cache the pin
selectedPin = placemark
// clear existing pins
mapView.removeAnnotations(mapView.annotations)
let annotation = MKPointAnnotation()
annotation.coordinate = placemark.coordinate
annotation.title = placemark.name
if let city = placemark.locality,
let state = placemark.administrativeArea {
annotation.subtitle = "(city) (state)"
}
mapView.addAnnotation(annotation)
let span = MKCoordinateSpanMake(0.05, 0.05)
let region = MKCoordinateRegionMake(placemark.coordinate, span)
mapView.setRegion(region, animated: true)
}
}
LocalSearchTable.Swift:
import UIKit
import MapKit
class LocationSearchTable : UITableViewController {
var matchingItems:[MKMapItem] = []
var mapView: MKMapView? = nil
var handleMapSearchDelegate:HandleMapSearch? = nil
func parseAddress(selectedItem:MKPlacemark) -> String {
// put a space between "4" and "Melrose Place"
let firstSpace = (selectedItem.subThoroughfare != nil && selectedItem.thoroughfare != nil) ? " " : ""
// put a comma between street and city/state
let comma = (selectedItem.subThoroughfare != nil || selectedItem.thoroughfare != nil) && (selectedItem.subAdministrativeArea != nil || selectedItem.administrativeArea != nil) ? ", " : ""
// put a space between "Washington" and "DC"
let secondSpace = (selectedItem.subAdministrativeArea != nil && selectedItem.administrativeArea != nil) ? " " : ""
let addressLine = String(
format:"%@%@%@%@%@%@%@",
// street number
selectedItem.subThoroughfare ?? "",
firstSpace,
// street name
selectedItem.thoroughfare ?? "",
comma,
// city
selectedItem.locality ?? "",
secondSpace,
// state
selectedItem.administrativeArea ?? ""
)
return addressLine
}
}
extension LocationSearchTable : UISearchResultsUpdating {
func updateSearchResultsForSearchController(searchController: UISearchController) {
guard let mapView = mapView,
let searchBarText = searchController.searchBar.text else { return }
let request = MKLocalSearchRequest()
request.naturalLanguageQuery = searchBarText
request.region = mapView.region
let search = MKLocalSearch(request: request)
search.startWithCompletionHandler { response, _ in
guard let response = response else {
return
}
self.matchingItems = response.mapItems
self.tableView.reloadData()
}
}
}
extension LocationSearchTable {
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return matchingItems.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("MapSearchCell")!
let selectedItem = matchingItems[indexPath.row].placemark
cell.textLabel?.text = selectedItem.name
cell.detailTextLabel?.text = parseAddress(selectedItem)
return cell
}
}
extension LocationSearchTable {
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let selectedItem = matchingItems[indexPath.row].placemark
handleMapSearchDelegate?.dropPinZoomIn(selectedItem)
dismissViewControllerAnimated(true, completion: nil)
}
}
推荐答案
您将了解以下主题
- 在地图中显示注释.
- 在地图中显示自定义注释.
- 在地图中使用自定义"按钮显示自定义注释.
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