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Merge pull request react-native-maps#675 from opendoor-labs/zindex_pr
[zIndex] Add support for setting zIndex on markers
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,100 @@ | ||
import React from 'react'; | ||
import { | ||
Dimensions, | ||
StyleSheet, | ||
Text, | ||
View, | ||
} from 'react-native'; | ||
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import MapView from 'react-native-maps'; | ||
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const { width, height } = Dimensions.get('window'); | ||
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const ASPECT_RATIO = width / height; | ||
const LATITUDE = 37.733858; | ||
const LONGITUDE = -122.446549; | ||
const MARKERS_LATITUDE_DELTA = 0.03; | ||
const MARKERS_LONGITUDE_DELTA = MARKERS_LATITUDE_DELTA * ASPECT_RATIO; | ||
const MAP_LATITUDE_DELTA = 0.3; | ||
const MAP_LONGITUDE_DELTA = MAP_LATITUDE_DELTA * ASPECT_RATIO; | ||
const NUM_MARKERS = 100; | ||
const PERCENT_SPECIAL_MARKERS = 0.1; | ||
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class ZIndexMarkers extends React.Component { | ||
constructor(props) { | ||
super(props); | ||
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const markerInfo = []; | ||
for (let i = 1; i < NUM_MARKERS; i++) { | ||
markerInfo.push({ | ||
latitude: (((Math.random() * 2) - 1) * MARKERS_LATITUDE_DELTA) + LATITUDE, | ||
longitude: (((Math.random() * 2) - 1) * MARKERS_LONGITUDE_DELTA) + LONGITUDE, | ||
isSpecial: Math.random() < PERCENT_SPECIAL_MARKERS, | ||
id: i, | ||
}); | ||
} | ||
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this.state = { | ||
markerInfo, | ||
}; | ||
} | ||
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render() { | ||
const markers = this.state.markerInfo.map((markerInfo) => | ||
<MapView.Marker | ||
coordinate={markerInfo} | ||
key={markerInfo.id} | ||
pinColor={markerInfo.isSpecial ? '#c5a620' : null} | ||
style={markerInfo.isSpecial ? styles.specialMarker : null} | ||
/> | ||
); | ||
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return ( | ||
<View style={styles.container}> | ||
<MapView | ||
provider={this.props.provider} | ||
ref={ref => { this.map = ref; }} | ||
style={styles.map} | ||
initialRegion={{ | ||
latitude: LATITUDE, | ||
longitude: LONGITUDE, | ||
latitudeDelta: MAP_LATITUDE_DELTA, | ||
longitudeDelta: MAP_LONGITUDE_DELTA, | ||
}} | ||
> | ||
{markers} | ||
</MapView> | ||
<View style={styles.textContainer}> | ||
<Text>The yellow markers have a higher zIndex and appear above other markers.</Text> | ||
</View> | ||
</View> | ||
); | ||
} | ||
} | ||
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ZIndexMarkers.propTypes = { | ||
provider: MapView.ProviderPropType, | ||
}; | ||
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const styles = StyleSheet.create({ | ||
container: { | ||
...StyleSheet.absoluteFillObject, | ||
justifyContent: 'flex-end', | ||
alignItems: 'center', | ||
}, | ||
map: { | ||
...StyleSheet.absoluteFillObject, | ||
}, | ||
textContainer: { | ||
backgroundColor: 'white', | ||
borderRadius: 4, | ||
marginHorizontal: 40, | ||
marginVertical: 20, | ||
padding: 10, | ||
}, | ||
specialMarker: { | ||
zIndex: 1, | ||
}, | ||
}); | ||
|
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module.exports = ZIndexMarkers; |
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