莆田系医院作的恶已经人尽皆知，为了让家人远离附近的莆田系医院，我特意开发了一款APP供大家使用，现已上架AppStore，地址在这里，而因为实现简单又不涉及许多隐私，所以把这个app开源了，地址在这。
这是我首个个人作品，也是首个全用swift完成的作品。当然使用swift进行开发早在14年就开始了，不过因为版本更新太快，不得不放弃了后续维护，改用OC继续实现。如今swift的稳定性已经相当可观，第三方库的支持也比较到位了，是时候全面转向swift的怀抱了。今后的开源项目也将尽量都用swift来实现。
黑心医院的实现非常简单:
- 从凤凰网获取名单，然后到高德地图上获取地理位置数据，并保存下来。
- 使用SwiftyJSON进行解析，使用Realm进行存储
func loadData() -> Void {
let realm = try! Realm()
hospitals = realm.objects(Hospital)
print("count = \(hospitals.count)")
if hospitals.count == 0 {
let path = NSBundle.mainBundle().pathForResource("hospital", ofType: "geojson")
let data = NSFileManager.defaultManager().contentsAtPath(path!)
let dic = try! NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.AllowFragments) as? NSDictionary
let json = JSON(dic!)
print(json)
let array = json["features"]
for hos in array.array! {
let name = hos["properties"]["name"].string
let lng = hos["geometry"]["coordinates"][0].double
let lat = hos["geometry"]["coordinates"][1].double
let hospital: Hospital = Hospital()
hospital.name = name!
hospital.lat = lat!
hospital.lng = lng!
try! realm.write {
realm.add(hospital)
}
}
hospitals = realm.objects(Hospital)
}
print("count = \(hospitals.count)")
}
这里我曾经想把做好的realm数据库直接放进bundle并设为只读，然后直接读取bundle中的数据库，但是无奈并没有这个权限，只好放弃了。
- 使用MapKit进行地图绘制
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
mapView.showsUserLocation = true
for hospital in hospitals {
let ann = MKPointAnnotation()
ann.title = hospital.name
let coordinate = CLLocation(latitude: hospital.lat, longitude: hospital.lng).coordinate
ann.coordinate = coordinate
mapView.addAnnotation(ann)
}
}
//MARK: mapview delegate
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
//return nil so map view draws "blue dot" for standard user location
return nil
}
let reuseId = "pin"
var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView
if pinView == nil {
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView!.canShowCallout = true
pinView!.animatesDrop = true
// pinView!.pinTintColor = UIColor.purpleColor()
pinView!.rightCalloutAccessoryView = UIButton(type: .DetailDisclosure)
}
else {
pinView!.annotation = annotation
}
return pinView
}
var locationUpdated = false
func mapView(mapView: MKMapView, didUpdateUserLocation userLocation: MKUserLocation) {
if locationUpdated == false {
//创建一个MKCoordinateSpan对象，设置地图的范围（越小越精确）
let latDelta = 0.5
let longDelta = 0.5
let currentLocationSpan:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, longDelta)
//定义地图区域和中心坐标（
//使用自定义位置
let center:CLLocation = userLocation.location!
let currentRegion:MKCoordinateRegion = MKCoordinateRegion(center: center.coordinate,
span: currentLocationSpan)
//设置显示区域
mapView.setRegion(currentRegion, animated: true)
locationUpdated = true
}
}
- 使用UISearchController进行检索
本来检索想用UISearchDIsplayController做的，由于只支持最新版本，才发现这玩意已经被弃用了。从后面的版本开始需要使用UISearchController了。
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
searchController = UISearchController(searchResultsController: nil)
searchController.delegate = self
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation = false
searchController.obscuresBackgroundDuringPresentation = false
searchController.hidesNavigationBarDuringPresentation = false
self.tableView.tableHeaderView = searchController.searchBar
}
func updateSearchResultsForSearchController(searchController: UISearchController) {
let searchText = searchController.searchBar.text
var arr = Array<Hospital>()
for hospital in self.hospitals {
if (hospital.name as NSString).containsString(searchText!) {
arr.append(hospital)
}
}
searchResults = arr
self.tableView.reloadData()
}
- 使用UIActivityController 来分享
func mapView(mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
let image = UIImage(named: "60")
let url = NSURL(string: "http://finance.ifeng.com/a/20160504/14362042_0.shtml")
let string = (view.annotation?.title!)!+"属于莆田系医院，小伙伴们千万不要去！"
let activityController = UIActivityViewController(activityItems: [image! ,url!,string], applicationActivities: nil)
self.presentViewController(activityController, animated: true, completion: nil)
}
原本想使用微信分享的，但一来微信分享需要引入微信库，二来还要各种依赖，集成好了之后又被我删掉了。反正自带的分享也可以支持微信的，而且代码相当简单。
我也知道github上有些开源项目正在收集莆田系医院的数据，不过一来没提供获取数据与提交数据的接口，仍然是本地数据的模式，二来没有地理位置的信息，我觉得相比什么电话网址这些数据，地理位置更有用一些。所以目前我还是会维持使用本地数据的方式，直到有可用的接口为止。
