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Mapbox Maps SDKでスマートフォンアプリ開発
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Taro Matsuzawa aka. btm
October 13, 2019
Programming
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Mapbox Maps SDKでスマートフォンアプリ開発
FOSS4G 2019 Kobe KANSAIにて発表したプレゼンテーションを実験的にPDF化したものです
Taro Matsuzawa aka. btm
October 13, 2019
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Transcript
Mapbox Maps SDK Mapbox Maps SDK ͰεϚʔτϑΥϯΞ ͰεϚʔτϑΥϯΞ ϓϦ։ൃ ϓϦ։ൃ
দᖒଠ @ Georepublic slide: https://hackmd.io/@smellman/foss4g-2019- kobe 1
ࣗݾհ ࣗݾհ γχΞΤϯδχΞ @ Georepublic ίϛϡχςΟ͍Ζ͍Ζͬͯ·͢ OSGeoຊࢧ෦ཧࣄ ຊUNIXϢʔβձཧࣄ OpenStreetMap Foundation
Japanϝϯόʔ ϒϨΠΫίΞΫϥελ 2
FOSS4G 2019 NiigataͰYoutube৴୲ΛΓ· ͨ͠ɻ 3
৴෩ܠ ৴෩ܠ 4
Youtube৴֓ཁ Youtube৴֓ཁ ϏσΦΧϝϥ HDMI to USB Thinkpad X220 ffmpeg (৴ιϑτ)
htop (ࢹ) 5
ຊ ຊ 6
MapboxͷεϚʔτϑΥϯ͚ͷϥΠϒϥϦͷհ Ͱ͢ɻ ҙ: ࠓճ mapbox gl js ͷͰ͋Γ·ͤ Μɻ ҙ:
SlideʹऩΊΔͨΊΠϯσϯτ͕গ่͠Ε͍ͯ Δͷ͕͋Γ·͢ɻ 7
Mapbox Maps SDK Mapbox Maps SDK Mapbox͕ग़͍ͯ͠ΔωΠςΟϒ͚SDK Maps SDKͱུ͍ͯ͠Δ ެࣜαΠτͰiOS/Android/UnityʹରԠ
ࠓճiOSͱAndroidʹ͍͓ͭͯ Github্ʹXamarin/ReactNative/Node.jsͳͲ Node.jsαʔόαΠυϨϯμϦϯάʹར༻ ίΞ෦C++Ͱ࡞ 8
Overview Overview Platform Development Languages iOS Swift/Objective-C Android Kotlin/Java Unity
C# Xamarin C# React Native JavaScript Node.js JavaScript 9
Mapbox GL Ecosystem Mapbox GL Ecosystem 10
macOS͚ʹAppleScriptରԠͱ͔Γ͗͢ 11
جຊػೳ جຊػೳ ʹରԠ ͨ·ʹରԠ͍ͯ͠ͳ͍༷͋Δ ϓϥοτϑΥʔϜ͝ͱʹ࣮͞Ε͍ͯΔػೳ͕ ҧ͏ MapboxҎ֎Ͱ͍ͯ͠ΔStyle͑Δ Smartphone͚ʹࣄલμϯϩʔυػೳ͕͋ Δ iOSʹϑΝΠϧͷ্ݶ͕͋ͬͨΓ͢Δ
MapboxͷαʔϏεΛ͏߹AccessToken͕ ඞཁ Mapbox Style Specification 12
ࠓճiOS/Android/React Nativeͷ࣮Λݟ͍ͯ͘ React Nativeؒʹ߹͍·ͤΜͰͨ͠(ޙड़) 13
Mapbox Maps SDK Mapbox Maps SDK for iOS for iOS
Swift/Objective-CʹରԠͨ͠SDK StoryBoardͳͲͷGUI։ൃʹରԠ Πϯετʔϧํ๏͕͍͔ͭ͋͘Δ खಈ CocoaPad Carthage 14
खಈͰߏங खಈͰߏங Mapbox.frameworkΛϓϩδΣΫτʹՃ Build phaseʹshellΛՃ Info.plistʹҎԼΛՃ MGLMapboxAccessToken ϩάΠϯͨ͠ঢ়ଶͰνϡʔτϦΞϧΛݟΔ ͱ͜ΕΛ͑ͬͯग़ͯ͘Δ NSLocationWhenInUseUsageDescription
15
ҙ ҙ MapboxެࣜͷυΩϡϝϯτهड़͕ݹ͘ɺ Mapbox.frameworkͷՃͷํ͕ݹ͍XCodeͷ Γํʹͳ͍ͬͯΔ 16
StoryboardʹՃ StoryboardʹՃ Main.storyboardʹViewΛՃ͢Δ ΫϥεΛUIView͔ΒMGLMapViewʹมߋ͢Δ styleͷURLΛهड़ ͋ͱ࠲ඪͱ͔ೖΕ͓ͯ͘ͱࣗಈతʹͦͷ ॴ 17
18
19
20
Marker(Annotation)ΛՃ Marker(Annotation)ΛՃ AnnotationΛԠͰ͖ΔΑ͏ʹDelegateΛՃ ViewControllerͰself.view.subviews͔Β MGLMapViewΛ୳ͯ͋ͬͨ͠ΒAnnotationΛՃ ͢Δ storyboardΛ͏ͱExampleͱҧ͏ͷʹͳΓ ͕ͪͳͷͰҙ ϢʔςΟϦςΟؔΛ࡞Δͱྑ͍͔ 21
import UIKit import Mapbox class ViewController: UIViewController, MGLMapViewDelegate { ...
} 22
override func viewDidLoad() { super.viewDidLoad() for v in self.view.subviews {
if let item = v as? MGLMapView { item.delegate = self let hello = MGLPointAnnotation() hello.coordinate = CLLocationCoordinate2D(...) hello.title = "..." hello.subtitle = "..." item.addAnnotation(hello) } } } 23
// delegate func mapView(_ mapView: MGLMapView, viewFor annotation: MGLAnnotation) ->
MGLAnnotationView? { return nil } func mapView(_ mapView: MGLMapView, annotationCanShowCallout annotation: MGLAnnotation) -> Bool { return true } 24
25
Mapbox Maps SDK Mapbox Maps SDK for Android for Android
Java/KotlinʹରԠ جຊతʹίʔυΛॻ͘ελΠϧ ΠϯετʔϧGradleͰΔͷͰָ 26
ڥߏங ڥߏங GradleͷઃఆΛapp/build.gradleʹॻ͖ࠐΉ build.gradle͕̎ͭ͋ΔͷͰҙ permissionͷઃఆΛAndroidManifest.xmlʹՃ ίʔυΛॻ͍࣮ͯΛ͢Δ 27
28
29
30
SymbolLayerΛՃ SymbolLayerΛՃ 8.x͔ΒMapView.addMarker͕depricatedʹ SymbolLayerͰ༻͢Δ MapboxMap.OnMapClickListenerͰΫϦοΫΠϕ ϯτΛϋϯυϦϯά͢Δ Ҏલͷmarkerͱ͔ͳΓҧ͏ߟ͑ํ 31
ิ ิ LayerΛ͏ΓํࣗମϕʔεϚοϓͱॲཧΛ ڞ௨Խ͢Δͱ͍͏ߟ͑ํͱࢥΘΕΔ Mapboxతʹਖ਼͍͠Γํ iOSAndroidͱಉ࣮͕͡Ͱ͖Δ͕ͬͪ͜· ͩmarkerͷॲཧdepricatedʹͳ͍ͬͯͳ͍ ͍ͣΕͳΔͱࢥΘΕΔ ͜ͷ༷ΛௐΔͨΊʹReact Nativeͷ࣮ௐ
͖Ε·ͤΜͰͨ͠ 32
public void onMapReady(@NonNull final MapboxMap mapboxMap) { this.mapboxMap = mapboxMap;
this.features = new ArrayList<>(); Feature f = Feature.fromGeometry( Point.fromLngLat(135.19890, 34.68505)); f.addStringProperty(TITLE_PROP, "KITTO"); f.addStringProperty(DESCRIPTION_PROP, "Welcome to FOSS4G 2019 Kansai/Kobe"); this.features.add(f); ... 1 2 3 4 5 6 7 8 9 10 11 33
mapboxMap.setStyle( new Style.Builder().fromUri("...") .withImage(ICON_ID, BitmapFactory.decodeResource( MainActivity.this.getResources(), R.drawable.red_marker)) .withSource(new GeoJsonSource(SOURCE_ID, FeatureCollection.fromFeatures(this.features)))
.withLayer(new SymbolLayer(LAYER_ID, SOURCE_ID) .withProperties(PropertyFactory.iconImage(ICON_ID), PropertyFactory.iconAllowOverlap(true), PropertyFactory.iconOffset(new Float[]{0f, -9f})) ), new Style.OnStyleLoaded() {...}); mapboxMap.addOnMapClickListener(this); 1 2 3 4 5 6 7 8 9 10 11 12 13 14 34
ߟ͑ํͱͯ͠Mapbox StudioͰSymbolLayerΛ ొ͢ΔྲྀΕʹ͍ۙ a. ΞΠίϯΛొ b. ιʔεΛొ c. SymbolLayerΛొͯ͠ɺͦͷଐੑʹ iconImageΛ͚ͭΔ
ݩͷΞΠίϯը૾͕ແ͍ͷͰࣗͰ༻ҙ͢Δඞ ཁ͕͋Δ 35
@Override public boolean onMapClick(@NonNull LatLng point) { PointF screenPoint =
mapboxMap.getProjection() .toScreenLocation(point); List<Feature> features = mapboxMap .queryRenderedFeatures(screenPoint, LAYER_ID); if (!features.isEmpty()) { // ͜͜ʹ۩ମతͳॲཧΛॻ͘ return true; } return false; } 1 2 3 4 5 6 7 8 9 10 11 12 36
ॲཧͷதͷྫ Feature f = features.get(0); AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder .setMessage(f.getStringProperty(DESCRIPTION_PROP)) .setTitle(f.getStringProperty(TITLE_PROP)); AlertDialog dialog = builder.create(); dialog.show(); 1 2 3 4 5 6 7 8 37
38
39
ͰiOSͰ͜ͷॻ͖ํͲ͏͢Δͷʁ 40
func mapView(_ mapView: MGLMapView, didFinishLoading style: MGLStyle) { let markerImage
= #imageLiteral(resourceName: "marker") mapView.style?.setImage(markerImage, forName: "marker-icon") let coordinate = CLLocationCoordinate2D(latitude: 34.68505, longitude: 135.19890) 41
let hello = MGLPointFeature() hello.coordinate = coordinate hello.attributes = [
"name": "KITTO", "description": "Welcome to FOSS4G 2019 Kansai/Kobe" ] let source = MGLShapeSource( identifier: "kobe_source", features: [hello], options: nil) mapView.style?.addSource(source) 42
let symbols = MGLSymbolStyleLayer( identifier: "kobe_layer", source: source) symbols.iconImageName =
NSExpression( forConstantValue: "marker-icon") symbols.iconAllowsOverlap = NSExpression( forConstantValue: true) symbols.iconOffset = NSExpression( forConstantValue: CGVector(dx: 0, dy: -9)) mapView.style?.addLayer(symbols) } 43
if let item = v as? MGLMapView { item.delegate =
self mapView = item let singleTap = UITapGestureRecognizer( target: self, action: #selector(handleMapTap(sender:))) for recognizer in mapView.gestureRecognizers! where recognizer is UITapGestureRecognizer { singleTap.require(toFail: recognizer) } mapView.addGestureRecognizer(singleTap) } 44
@objc @IBAction func handleMapTap( sender: UITapGestureRecognizer) { if sender.state ==
.ended { let point = sender.location(in: sender.view!) let layerIdentifiers: Set = ["kobe_layer"] 45
for feature in mapView.visibleFeatures( at: point, styleLayerIdentifiers: layerIdentifiers) where feature
is MGLPointFeature { guard let selectedFeature = feature as? MGLPointFeature else { fatalError("...") } showCallout(feature: selectedFeature) return } } } 46
func showCallout(feature: MGLPointFeature) { let dialog: UIAlertController = UIAlertController( title:
feature.attributes["name"] as? String, message: feature.attributes["description"] as? String, preferredStyle: UIAlertController.Style.alert) let action = UIAlertAction(title: "ด͡Δ", style: UIAlertAction.Style.default, handler: nil) dialog.addAction(action) self.present(dialog, animated: true, completion: nil) } 47
48
49
·ͱΊ ·ͱΊ AndroidͷMapbox Maps SDK 8.x͔ΒmarkerΛ Ճ͢Δͷ͕͑ͳ͘ͳͬͨ LayerΛ͓͏ͱ͍͏ํੑ iOS·ͩଘࡏ͢Δ͕ɺLayerΛ͏ํ๏͋Δ ࠓޙLayerΛҙࣝͨ͠ϓϩάϥϛϯά͕ඞཁ
ReactNativeͰਪ͞Ε͍ͯΔ 50
͓ΘΓ ͓ΘΓ GitHub Twitter 51