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udemy ios10

L12 mapView

override func viewDidLoad() {
super.viewDidLoad()

mapView.delegate = self
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
}

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

let location = CLLocationCoordinate2DMake(locations[0].coordinate.latitude, locations[0].coordinate.longitude)
let span = MKCoordinateSpan(latitudeDelta: 0.05, longitudeDelta: 0.05)
let region = MKCoordinateRegion(center: location, span: span)
self.mapView.setRegion(region, animated: true)
}

導航模式 ViewController
    func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
        if transmittedLatitude != 0{
            if transmittedLongitude != 0{
                self.requestCLLocation = CLLocation(latitude: transmittedLatitude, longitude: transmittedLongitude)
            }
        }
        CLGeocoder().reverseGeocodeLocation(requestCLLocation) { (placemarks, error) in
            if let placemark = placemarks{
                if placemark .count > 0 {
                    let newPlaceMark = MKPlacemark(placemark: placemark[0])
                    let item = MKMapItem(placemark: newPlaceMark)
                    item.name = self.transmittedTitle
                    //選擇啟用導航時的選項
                    let lanuchOptions = [MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeWalking]
                    item.openInMaps(launchOptions: lanuchOptions)
                }
            }
        }

    }

 L110 客製化鍵盤

 L113 JSON Fetch
新課程，但error handling還沒有做好，有反應，待最佳解 

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collection view part6 swift

preselect collectionview https://stackoverflow.com/questions/45610785/how-to-preselect-and-highlight-a-cell-from-a-uicollectionview https://hackernoon.com/uicollectionviewcell-selection-made-easy-41dae148379d if collectionview allow multiple selection remeber add this, cell item could be Deselect collectionView. selectItem (at: indexPath, animated: true , scrollPosition: . top ) https://stackoverflow.com/questions/15330844/uicollectionview-select-and-deselect-issue save indexpath userdefault https://stackoverflow.com/questions/34804294/how-to-save-nsindexpath-locally https://stackoverflow.com/questions/37001643/how-to-add-nsindexpath-to-nsuserdefaults-in-swift navigation presneted viewcontroller dismiss https://stackoverflow.com/questions/31205002/why-is-it-bad-practice-to-have-a-viewcontroller-dismiss-itself indexpath comparison         if selectIndexPath . contains (indexPath) {             cell. isSelect...
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android java 小數點的坑

如果temp  = 12.5                         val newTemp = "%.1f".format(Tempvalue) 原本的寫法是這樣 在法語區 將newTemp.toFloat() 後會掛，因為法語地區的小數點是 , 逗號 所以沒法轉成 12.5  會變成 12,5 後來的解法 將拿到的數字硬轉成 12.5  其他就不管了 val newTemp = "%.1f" . format ( Locale . US , Tempvalue)
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collection view part 5 swift

load plist data https://www.cnblogs.com/gongyuhonglou/p/6029340.html https://blog.csdn.net/sophieDJF/article/details/88247388 https://stackoverflow.com/questions/24045570/how-do-i-get-a-plist-as-a-dictionary-in-swift https://stackoverflow.com/questions/40436895/how-to-read-plist-without-using-nsdictionary-in-swift get specifig key in dictionary https://stackoverflow.com/questions/24640990/how-do-i-get-the-key-at-a-specific-index-from-a-dictionary-in-swift get specifig key with index https://stackoverflow.com/questions/31775724/swift-dictionary-access-via-index get collectionview selection https://stackoverflow.com/questions/21639394/how-to-select-item-in-collectionview-programmatically add button in uinavigationbar https://www.hackingwithswift.com/example-code/uikit/how-to-add-a-bar-button-to-a-navigation-bar child viewcontroller pass data to parent viewcontroller https://stackoverflow.com/questions/39285588/how-to-pass-data-from-child-to-parent-view-controller-in-sw...
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