Awesome native OpenGL-powered maps - by Mapbox
Note that version 1.5.0 requires NativeScript 2.3.0.
- you want full map styling capability to match the uses of your app (example: downplaying highways for a running app),
- you want a platform independent map implementation,
- you care about performance so you don't want a web based solution,
- you want an open source map implementation that you can tweak yourself,
- you want to leverage Mapbox's backend to visualize massive geo data sets,
- you want advanced analytics about your app's users,
- NEW: You need offline maps and custom markers.
You need a Mapbox API access token (they have a free Starter plan!), so sign up with Mapbox. Once you've registered go to your Account > Apps > New token. The 'Default Secret Token' is what you'll need.
From the command prompt go to your app's root folder and execute:
tns plugin add nativescript-mapbox
If you get an error during iOS build related to Podspec versions, probably the easiest fix is:
tns platform remove ios and tns platform add ios.
On Android make sure you add this to the <application> node of app/App_Resources/Android/AndroidManifest.xml (the plugin already attempts to do so):
<service android:name="com.mapbox.mapboxsdk.telemetry.TelemetryService" />If you want a quickstart, clone our demo app. And here's the comprehensive list of supported functions:
var mapbox = require("nativescript-mapbox");
var platform = require("platform");
var isIOS = platform.device.os === platform.platformNames.ios;
mapbox.show({
accessToken: 'YOUR_API_ACCESS_TOKEN', // see 'Prerequisites' above
style: mapbox.MapStyle.DARK, // see the mapbox.MapStyle enum for other options, default mapbox.MapStyle.STREETS
margins: {
left: 40, // default 0
right: 40, // default 0
top: 450, // default 0
bottom: isIOS ? 50: 0 // default 0, this shows how to override the style for iOS
},
center: { // optional without a default
lat: 52.3702160,
lng: 4.8951680
},
zoomLevel: 9.25, // 0-20, default 0
showUserLocation: true, // default false - requires location permissions on Android which you can remove from AndroidManifest.xml if you don't need them
hideAttribution: false, // default false, Mapbox requires this default if you're on a free plan
hideLogo: false, // default false, Mapbox requires this default if you're on a free plan
hideCompass: false, // default false
disableRotation: false, // default false
disableScroll: false, // default false
disableZoom: false, // default false
markers: [ // optional without a default
{
id: 1, // can be user in 'removeMarkers()'
lat: 52.3732160, // mandatory
lng: 4.8941680, // mandatory
title: 'Nice location', // recommended to pass in
subtitle: 'Really really nice location', // one line is available on iOS, multiple on Android
iconPath: 'res/markers/green_pin_marker.png', // anywhere in your app folder
onTap: function(marker) { console.log("This marker was tapped"); },
onCalloutTap: function(marker) { console.log("The callout of this marker was tapped"); }
}
]
}).then(
function(result) {
console.log("Mapbox show done");
},
function(error) {
console.log("mapbox show error: " + error);
}
)All further examples assume mapbox has been required.
Also, all functions support promises, but we're leaving out the .then() stuff for brevity where it doesn't add value.
mapbox.hide();If you previously called hide() you can quickly unhide the map,
instead of redrawing it (which is a lot slower and you loose the viewport position, etc).
mapbox.unhide(); var onTap = function(marker) {
console.log("Marker tapped with title: '" + marker.title + "'");
};
var onCalloutTap = function(marker) {
alert("Marker callout tapped with title: '" + marker.title + "'");
};
mapbox.addMarkers([
{
id: 2, // can be user in 'removeMarkers()'
lat: 52.3602160, // mandatory
lng: 4.8891680, // mandatory
title: 'One-line title here', // no popup unless set
subtitle: 'Infamous subtitle!',
iconPath: 'res/markers/home_marker.png',
onTap: onTap,
onCalloutTap: onCalloutTap
},
{
..
}
])You can either remove all markers by not passing in an argument, or remove specific marker id's (which you specified previously).
// remove all markers
mapbox.removeMarkers();
// remove specific markers by id
mapbox.removeMarkers([1, 2]); mapbox.setCenter(
{
lat: 52.3602160, // mandatory
lng: 4.8891680, // mandatory
animated: false // default true
}
)Here the promise callback makes sense, so adding it to the example:
mapbox.getCenter().then(
function(result) {
console.log("Mapbox getCenter done, result: " + JSON.stringify(result));
},
function(error) {
console.log("mapbox getCenter error: " + error);
}
) mapbox.setZoomLevel(
{
level: 6.5, // mandatory, 0-20
animated: true // default true
}
) mapbox.getZoomLevel().then(
function(result) {
console.log("Mapbox getZoomLevel done, result: " + JSON.stringify(result));
},
function(error) {
console.log("mapbox getZoomLevel error: " + error);
}
) // this is a boring triangle drawn near Amsterdam Central Station
mapbox.animateCamera({
// this is where we animate to
target: {
lat: 52.3732160,
lng: 4.8941680,
},
zoomLevel: 17, // Android
altitude: 2000, // iOS (meters from the ground)
bearing: 270, // Where the camera is pointing, 0-360 (degrees)
tilt: 50,
duration: 10000 // in milliseconds
}) mapbox.setTilt(
{
tilt: 40, // default 30 (degrees angle)
duration: 4000 // default 5000 (milliseconds)
}
) mapbox.getTilt().then(
function(tilt) {
console.log("Current map tilt: " + tilt);
}
)Draw a shape (like a line/route, or star). Just connect the dots like we did as a child. The first person to tweet a snowman drawn with this function gets a T-shirt.
// this is a boring triangle drawn near Amsterdam Central Station
mapbox.addPolygon({
points: [
{
'lat': 52.3832160, // mandatory
'lng': 4.8991680 // mandatory
},
{
'lat': 52.3632160,
'lng': 4.9011680
},
{
'lat': 52.3932160,
'lng': 4.8911680
}
]
})Draw a polyline. Connect the points given as parameters.
// Draw a two segment line near Amsterdam Central Station
mapbox.addPolyline({
color: 0xff29a025, //Set the color of the line (default black)
width: 7, //Set the width of the line (default 5)
points: [
{
'lat': 52.3833160, // mandatory
'lng': 4.8991780 // mandatory
},
{
'lat': 52.3834160,
'lng': 4.8991880
},
{
'lat': 52.3835160,
'lng': 4.8991980
}
]
});For situations where you want the user to pre-load certain regions you can use these methods to create and remove offline regions.
Important read: the offline maps documentation by Mapbox.
This example downloads the region 'Amsterdam' on zoom levels 9, 10 and 11 for map style 'outdoors'.
mapbox.downloadOfflineRegion(
{
accessToken: accessToken, // required for Android in case no map has been shown yet
name: "Amsterdam", // this name can be used to delete the region later
style: mapbox.MapStyle.OUTDOORS,
minZoom: 9,
maxZoom: 11,
bounds: {
north: 52.4820,
east: 5.1087,
south: 52.2581,
west: 4.6816
},
// this function is called many times during a download, so
// use it to show an awesome progress bar!
onProgress: function (progress) {
console.log("Download progress: " + JSON.stringify(progress));
}
}
).then(
function() {
console.log("Offline region downloaded");
},
function(error) {
console.log("Download error: " + error);
}
);Grab the viewport with the mapbox.getViewport() function and download it at various zoom levels:
// I spare you the error handling on this one..
mapbox.getViewport().then(function(viewport) {
mapbox.downloadOfflineRegion(
{
name: "LastViewport", // anything you like really
style: mapbox.MapStyle.OUTDOORS,
minZoom: viewport.zoomLevel,
maxZoom: viewport.zoomLevel + 2, // higher zoom level is lower to the ground
bounds: viewport.bounds,
onProgress: function (progress) {
console.log("Download %: " + progress.percentage);
}
}
);
});To help you manage offline regions there's a listOfflineRegions function you can use. You can then fi. call deleteOfflineRegion (see below) and pass in the name to remove any cached region(s) you like.
mapbox.listOfflineRegions({
// required for Android in case no map has been shown yet
accessToken: accessToken,
}).then(
function(regions) {
console.log(JSON.stringify(JSON.stringify(regions));
},
function(error) {
console.log("Error while listing offline regions: " + error);
}
);You can remove regions you've previously downloaded. Any region(s) matching the name param will be removed locally.
mapbox.deleteOfflineRegion({
name: "Amsterdam"
}).then(
function() {
console.log("Offline region deleted");
},
function(error) {
console.log("Error while deleting an offline region: " + error);
}
);On Android 6 you need to request permission to be able to show the user's position on the map at runtime when targeting API level 23+.
Even if the uses-permission tag for ACCESS_FINE_LOCATION is present in AndroidManifest.xml.
Note that hasFineLocationPermission will return true when:
- You're running this on iOS, or
- You're targeting an API level lower than 23, or
- You're using Android < 6, or
- You've already granted permission.
mapbox.hasFineLocationPermission().then(
function(granted) {
// if this is 'false' you probably want to call 'requestFineLocationPermission' now
console.log("Has Location Permission? " + granted);
}
);
// if no permission was granted previously this will open a user consent screen
mapbox.requestFineLocationPermission().then(
function() {
console.log("Location permission requested");
}
);Note that the show function will also check for permission if you passed in showUserLocation : true.
If you didn't request permission before showing the map, and permission was needed, then
the location is not drawn on the map and the plugin will log an error to the console.
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