react-native-maps-benestudio
v0.13.0
Published
React Native Mapview component for iOS + Android
Downloads
2
Maintainers
Readme
react-native-maps
React Native Map components for iOS + Android
Installation
See Installation Instructions.
See Setup Instructions for the Included Example Project.
Compatibility
Due to the rapid changes being made in the React Native ecosystem, we are not officially going to
support this module on anything but the latest version of React Native. With that said, we will do
our best to stay compatible with older versions as much that is practical, and the peer dependency
of this requirement is set to "react-native": "*"
explicitly for this reason. If you are using
an older version of React Native with this module though, some features may be buggy.
Note about React requires
Since react-native 0.25.0, React
should be required from node_modules
.
React Native versions from 0.18 should be working out of the box, for lower
versions you should add react
as a dependency in your package.json
.
Component API
<MapView.Marker />
Component API
<MapView.Callout />
Component API
<MapView.Polygon />
Component API
<MapView.Polyline />
Component API
<MapView.Circle />
Component API
General Usage
import MapView from 'react-native-maps';
or
var MapView = require('react-native-maps');
This MapView component is built so that features on the map (such as Markers, Polygons, etc.) are specified as children of the MapView itself. This provides an intuitive and react-like API for declaratively controlling features on the map.
Rendering a Map with an initial region
MapView
<MapView
initialRegion={{
latitude: 37.78825,
longitude: -122.4324,
latitudeDelta: 0.0922,
longitudeDelta: 0.0421,
}}
/>
Using a MapView while controlling the region as state
getInitialState() {
return {
region: {
latitude: 37.78825,
longitude: -122.4324,
latitudeDelta: 0.0922,
longitudeDelta: 0.0421,
},
};
}
onRegionChange(region) {
this.setState({ region });
}
render() {
return (
<MapView
region={this.state.region}
onRegionChange={this.onRegionChange}
/>
);
}
Rendering a list of markers on a map
<MapView
region={this.state.region}
onRegionChange={this.onRegionChange}
>
{this.state.markers.map(marker => (
<MapView.Marker
coordinate={marker.latlng}
title={marker.title}
description={marker.description}
/>
))}
</MapView>
Rendering a Marker with a custom view
<MapView.Marker coordinate={marker.latlng}>
<MyCustomMarkerView {...marker} />
</MapView.Marker>
Rendering a Marker with a custom image
<MapView.Marker
coordinate={marker.latlng}
image={require('../assets/pin.png')}
/>
Rendering a custom Marker with a custom Callout
<MapView.Marker coordinate={marker.latlng}>
<MyCustomMarkerView {...marker} />
<MapView.Callout>
<MyCustomCalloutView {...marker} />
</MapView.Callout>
</MapView.Marker>
Draggable Markers
<MapView initialRegion={...}>
<MapView.Marker draggable
coordinate={this.state.x}
onDragEnd={(e) => this.setState({ x: e.nativeEvent.coordinate })}
/>
</MapView>
Using a custom Tile Overlay
<MapView
region={this.state.region}
onRegionChange={this.onRegionChange}
>
<MapView.UrlTile
/**
* The url template of the tile server. The patterns {x} {y} {z} will be replaced at runtime
* For example, http://c.tile.openstreetmap.org/{z}/{x}/{y}.png
*/
urlTemplate={this.state.urlTemplate}
/>
</MapView>
For Android: add the following line in your AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" />
For IOS: configure App Transport Security in your app
Customizing the map style
Create the json object, or download a generated one from the google style generator.
// The generated json object
mapStyle = [ ... ]
render() {
return (
<MapView
region={this.state.region}
onRegionChange={this.onRegionChange}
customMapStyle={mapStyle}
/>
);
}
Examples
MapView Events
The <MapView />
component and its child components have several events that you can subscribe to.
This example displays some of them in a log as a demonstration.
Tracking Region / Location
Programmatically Changing Region
One can change the mapview's position using refs and component methods, or by passing in an updated
region
prop. The component methods will allow one to animate to a given position like the native
API could.
Changing the style of the map
Arbitrary React Views as Markers
Using the MapView with the Animated API
The <MapView />
component can be made to work with the Animated API, having the entire region
prop
be declared as an animated value. This allows one to animate the zoom and position of the MapView along
with other gestures, giving a nice feel.
Further, Marker views can use the animated API to enhance the effect.
Issue: Since android needs to render its marker views as a bitmap, the animations APIs may not be compatible with the Marker views. Not sure if this can be worked around yet or not.
Markers' coordinates can also be animated, as shown in this example:
Polygon Creator
Other Overlays
So far, <Circle />
, <Polygon />
, and <Polyline />
are available to pass in as children to the
<MapView />
component.
Default Markers
Default markers will be rendered unless a custom marker is specified. One can optionally adjust the
color of the default marker by using the pinColor
prop.
Custom Callouts
Callouts to markers can be completely arbitrary react views, similar to markers. As a result, they can be interacted with like any other view.
Additionally, you can fall back to the standard behavior of just having a title/description through
the <Marker />
's title
and description
props.
Custom callout views can be the entire tooltip bubble, or just the content inside of the system default bubble.
Image-based Markers
Markers can be customized by just using images, and specified using the image
prop.
Draggable Markers
Markers are draggable, and emit continuous drag events to update other UI during drags.
Lite Mode ( Android )
Enable lite mode on Android with liteMode
prop. Ideal when having multiple maps in a View or ScrollView.
Animated Region
The MapView can accept an MapView.AnimatedRegion
value as its region
prop. This allows you to utilize the Animated API to control the map's center and zoom.
import MapView from 'react-native-maps';
getInitialState() {
return {
region: new MapView.AnimatedRegion({
latitude: LATITUDE,
longitude: LONGITUDE,
latitudeDelta: LATITUDE_DELTA,
longitudeDelta: LONGITUDE_DELTA,
}),
};
}
onRegionChange(region) {
this.state.region.setValue(region);
}
render() {
return (
<MapView.Animated
region={this.state.region}
onRegionChange={this.onRegionChange}
/>
);
}
Animated Marker Position
Markers can also accept an AnimatedRegion
value as a coordinate.
getInitialState() {
return {
coordinate: new MapView.AnimatedRegion({
latitude: LATITUDE,
longitude: LONGITUDE,
}),
};
}
componentWillReceiveProps(nextProps) {
if (this.props.coordinate !== nextProps.coordinate) {
this.state.coordinate.timing({
...nextProps.coordinate,
duration: 500
}).start();
}
}
render() {
return (
<MapView initialRegion={...}>
<MapView.Marker.Animated coordinate={this.state.coordinate} />
</MapView>
);
}
Take Snapshot of map
getInitialState() {
return {
coordinate: {
latitude: LATITUDE,
longitude: LONGITUDE,
},
};
}
takeSnapshot () {
// 'takeSnapshot' takes a config object with the
// following options
const snapshot = this.refs.map.takeSnapshot({
width: 300, // optional, when omitted the view-width is used
height: 300, // optional, when omitted the view-height is used
region: {..}, // iOS only, optional region to render
format: 'png', // image formats: 'png', 'jpg' (default: 'png')
quality: 0.8, // image quality: 0..1 (only relevant for jpg, default: 1)
result: 'file' // result types: 'file', 'base64' (default: 'file')
});
snapshot.then((uri) => {
this.setState({ mapSnapshot: uri });
});
}
render() {
return (
<View>
<MapView initialRegion={...} ref="map">
<MapView.Marker coordinate={this.state.coordinate} />
</MapView>
<Image source={{ uri: this.state.mapSnapshot.uri }} />
<TouchableOpacity onPress={this.takeSnapshot}>
Take Snapshot
</TouchableOpacity>
</View>
);
}
Zoom to Specified Markers
Pass an array of marker identifiers to have the map re-focus.
Zoom to Specified Coordinates
Pass an array of coordinates to focus a map region on said coordinates.
Troubleshooting
My map is blank
- Make sure that you have properly installed react-native-maps.
- Check in the logs if there is more informations about the issue.
- Try setting the style of the MapView to an absolute position with top, left, right and bottom values set.
const styles = StyleSheet.create({
map: {
...StyleSheet.absoluteFillObject,
},
});
<MapView
style={styles.map}
// other props
/>
Inputs don't focus
- When inputs don't focus or elements don't respond to tap, look at the order of the view hierarchy, sometimes the issue could be due to ordering of rendered components, prefer putting MapView as the first component.
Bad:
<View>
<TextInput/>
<MapView/>
</View>
Good:
<View>
<MapView/>
<TextInput/>
</View>
License
Copyright (c) 2015 Airbnb
Licensed under the The MIT License (MIT) (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
https://raw.githubusercontent.com/airbnb/react-native-maps/master/LICENSE
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.