如何使用Mapbox以编程方式添加标记/注释并进行本机反应

Question

我是本机的新手，无法找到有关如何使用mapbox以编程方式向地图添加标记/注释的任何文档。

我们正在使用geofire查询，该查询会在兴趣点处于范围内时触发。

在触发器内，我想插入标记。

我发现的所有文档都是这样的：https : //www.mapbox.com/help/first-steps-react-native-sdk/ 在初始化和渲染期间添加标记。

到目前为止，这是我的代码

    render () {
        const {navigate} = this.props.navigation;
        return (
          <View style ={{flex: 1, position: 'relative'}}>
            <Mapbox.MapView
                styleURL={Mapbox.StyleURL.Dark}
                zoomLevel={15}
                centerCoordinate={[11.256, 43.770]}
                ref={map => { this.map = map; }}
                style={{flex: 1}}>
                {this.renderAnnotations([11.256, 43.770])}
            </Mapbox.MapView>


            <View style={styles.menuMainContainer}>

                {this.state.menuStatus ? <Animatable.View style={styles.menuSubcontainer}  animation={"bounceIn"}>
                    <View style={{justifyContent: 'space-between', justifyContent: 'center', flex: 1, marginBottom: 50}}>
                      <View style={{flexDirection: 'row', justifyContent: 'space-around'}}>
                        <MenuOptions imageSource={Images.lightIcon} menuTag="trash" name="Basureros"/>
                        <MenuOptions imageSource={Images.lightIcon} menuTag="holes" name="Huecos"/>
                      </View>
                      <View style={{flexDirection: 'row', justifyContent: 'space-around'}}>
                        <MenuOptions imageSource={Images.lightIcon} menuTag="hydrants" name="Hidrantes"/>
                        <MenuOptions imageSource={Images.lightIcon} menuTag="parking" name="Estacionamiento"/>
                      </View>
                      <View style={{flexDirection: 'row', justifyContent: 'space-around'}}>
                        <MenuOptions imageSource={Images.lightIcon} menuTag="others" name="Otros"/>
                      </View>
                    </View>
                  </Animatable.View> : null
                }
            </View>

            <View style ={styles.bottomContainer}>

              <TouchableOpacity  style={styles.buttons}>
                <Text style={styles.buttonText}>Boton_1</Text>
              </TouchableOpacity>
              <TouchableOpacity onPress ={this._takePhotofromCamera} style={styles.buttons}>
                <Text style={styles.buttonText}>Agregar Reportes</Text>
              </TouchableOpacity>
              <TouchableOpacity style={styles.buttons} onPress = {() => this.toggleMenuStatus()}>
                <Text style={styles.buttonText}>Boton_3</Text>
              </TouchableOpacity>
            </View>

      </View>

        )
      }
    }


    renderAnnotations = (location) =>{
        console.log('entro renderan2')
        return(
          <Mapbox.PointAnnotation
            key='pointAnnotation'
            id='pointAnnotation'
            coordinate={location}>

            <View style={styles.annotationContainer}>
              <View style={styles.annotationFill} />
            </View>
            <Mapbox.Callout title='Look! An annotation!' />
          </Mapbox.PointAnnotation>


      )
      }

    this.state.geoQuery.on("key_entered", function(key, location, distance) {
           console.log(key + " is located at [" + location + "] which is within the query (" + distance.toFixed(2) + " km from center)");
this.renderAnnotations();
})

我得到：错误：this.renderAnnotations不是一个函数

我也尝试将整个函数复制到this.state.geoQuery中，没有错误，但是标记也没有显示。

this.state.geoQuery.on("key_entered", function(key, location, distance) {
       console.log(key + " is located at [" + location + "] which is within the query (" + distance.toFixed(2) + " km from center)");
       return(
         <Mapbox.PointAnnotation
           key='pointAnnotation'
           id='pointAnnotation'
           coordinate={location}>

           <View style={styles.annotationContainer}>
             <View style={styles.annotationFill} />
           </View>
           <Mapbox.Callout title='Look! An annotation!' />
         </Mapbox.PointAnnotation>
     )});

谢谢

Answer 1

在直接与Mapbox支持人员聊天之后，他们告诉我PointAnnotation是旧版，应该使用ShapeSource和SymbolLayer代替，它具有很多更好的性能。这是操作方法：

    <Mapbox.MapView
                key='mainmap'
                textureMode={true}
                pitch={60}
                ref={(c) => this._map = c}
                onPress={this.onPress}
                styleURL={Mapbox.StyleURL.Light}
                zoomLevel={17}
                maxZoomLevel={20}
                minZoomLevel={15}
                centerCoordinate={this.initCenterLocation()}
                style={{ flex: 1 }}
                showUserLocation={true}
                userTrackingMode={Mapbox.UserTrackingModes.FollowWithHeading}
            >
                <Mapbox.ShapeSource
                    id='exampleShapeSource'
                    shape={this.state.featureCollection}
                    onPress={(feature) => this.onShapeSourceLayer(feature)}
                    images={{ assets: ['pin', 'm1_marker', 'm2_marker', 'm3_marker', 'm4_marker'] }}>
                    <Mapbox.SymbolLayer id='exampleIconName' minZoomLevel={1} style={stylesIcon.icon} />
                </Mapbox.ShapeSource>
            </Mapbox.MapView>

插入新的注释/点：

    this.setState({
            featureCollection: Mapbox.geoUtils.addToFeatureCollection(
                this.state.featureCollection,
                Mapbox.geoUtils.makeFeature({ type: 'Point', coordinates: location }, { icon: iconImage, key: key }),
            ),
        });

关于注解功能：

onShapeSourceLayer(e) {

    const feature = e.nativeEvent.payload;

    this.setState({
        annotationKey: feature.properties.key
    }, function () {

        this.togglePostModal(true)
    });

}