高德地图RN版本的很多修复与功能开发

本版本更新列表：
1. 高德地图升级到5.2.1，优化Android工程引用高德地图lib的方式
2. 修复地图组件中Marker或者Overlay无法动态变更调整的问题
3. 修复Android中地图点击、长按、用户位置更新接口未携带定位信息问题
4. 修复Android中地图移除后用户定位未关闭问题
5. 优化地图组件iOS中拖拽返回时卡顿问题
6. 实现地图组件设置地图可展示区域
7. 实现iOS支持animateTo交互操作，实现iOS和Android对duration的支持
8. 实现iOS和Android地图交互大一统接口：animateToMapStatus支持设置多个地图相机参数

9. 修复Android中点击地图后选中的Marker无法自动取消选中问题
10. 修复Marker上zIndex不生效问题
11. 修复iOS中点击Marker后导致地图点击事件回调的问题
12. 修复iOS中自定义的Marker图标在初次渲染时无法展示以及展示位置调整的问题
13. 修复iOS中Marker拖拽后变为大头针问题
14. 修复iOS中Marker自定义InfoWindow位置展示不正确与不接收用户点击事件的问题
15. 修复iOS Marker初始化active参数不生效问题

16. 修复Android中线段opacity不生效问题，实现iOS对opacity的支持
17. 实现iOS支持多颜色线段渐变渲染功能

后续待开发列表：
1. 弄清室内地图不生效问题
2. 支持地图自定义样式设置
3. 更加丰富的地图事件
4. 实现iOS中Overlay支持zIndex设置，添加Overlay地图层次定义

# Conflicts:
#	android/src/main/java/cn/qiuxiang/react/amap3d/AMapView.kt
#	android/src/main/java/cn/qiuxiang/react/amap3d/AMapViewManager.kt
#	components/MapView.js

close #5

android/src/main/java/cn/qiuxiang/react/amap3d/AMapConverter.kt

+package cn.qiuxiang.react.amap3d
+
+import com.amap.api.maps.model.LatLng
+import com.amap.api.maps.model.LatLngBounds
+import com.facebook.react.bridge.ReadableMap
+import android.graphics.Color
+
+/**
+ * Created by yuekong on 2017/7/4.
+ */
+class AMapConverter {
+    companion object {
+        fun LatLng(map: ReadableMap): LatLng {
+            return LatLng(map.getDouble("latitude"), map.getDouble("longitude"))
+        }
+
+        fun LatLngDelta(map: ReadableMap): LatLng {
+            return LatLng(map.getDouble("latitudeDelta"), map.getDouble("longitudeDelta"))
+        }
+
+        fun LatLngBounds(map: ReadableMap): LatLngBounds {
+            val center = LatLng(map.getMap("center"))
+            val span = LatLngDelta(map.getMap("span"))
+            return LatLngBounds(
+                    LatLng(center.latitude - span.latitude, center.longitude - span.longitude),
+                    LatLng(center.latitude + span.latitude, center.longitude + span.longitude)
+            )
+        }
+
+        fun color(color: Int, opacity: Float): Int {
+            return Color.argb(((opacity * Color.alpha(color)).toInt()), Color.red(color), Color.green(color), Color.blue(color))
+        }
+    }
+}
\ No newline at end of file

android/src/main/java/cn/qiuxiang/react/amap3d/AMapMarker.kt

@@ -35,6 +35,12 @@ class AMapMarker(context: ThemedReactContext) : ReactViewGroup(context) {
             marker?.position = value
         }
 
+    var zIndex: Float = 0.0f
+        set(value) {
+            field = value
+            marker?.zIndex = value
+        }
+
     var title = ""
         set(value) {
             field = value
@@ -86,7 +92,8 @@ class AMapMarker(context: ThemedReactContext) : ReactViewGroup(context) {
                 .position(position)
                 .title(title)
                 .infoWindowEnable(infoWindowEnabled)
-                .snippet(snippet))
+                .snippet(snippet)
+                .zIndex(zIndex))
 
         if (active) {
             marker?.showInfoWindow()

android/src/main/java/cn/qiuxiang/react/amap3d/AMapMarkerManager.kt

@@ -81,4 +81,9 @@ internal class AMapMarkerManager : ViewGroupManager<AMapMarker>() {
     fun setEnabledInfoWindow(marker: AMapMarker, enabled: Boolean) {
         marker.infoWindowEnabled = enabled
     }
+
+    @ReactProp(name = "zIndex")
+    fun setZInex(marker: AMapMarker, zIndex: Float) {
+        marker.zIndex = zIndex
+    }
 }

android/src/main/java/cn/qiuxiang/react/amap3d/AMapView.kt

 package cn.qiuxiang.react.amap3d
 
+import android.annotation.SuppressLint
 import android.view.View
 import com.amap.api.maps.AMap
 import com.amap.api.maps.CameraUpdateFactory
@@ -31,10 +32,14 @@ class AMapView(context: ThemedReactContext) : MapView(context) {
         map.myLocationStyle = locationStyle
 
         map.setOnMapClickListener { latLng ->
+            for (marker in markers.values) {
+                marker.active = false
+            }
+
             val event = Arguments.createMap()
             event.putDouble("latitude", latLng.latitude)
             event.putDouble("longitude", latLng.longitude)
-            emit(id, "onMapClick")
+            emit(id, "onMapClick", event)
         }
 
         map.setOnMapLongClickListener { latLng ->
@@ -49,7 +54,7 @@ class AMapView(context: ThemedReactContext) : MapView(context) {
             event.putDouble("latitude", location.latitude)
             event.putDouble("longitude", location.longitude)
             event.putDouble("accuracy", location.accuracy.toDouble())
-            emit(id, "onLocationChange")
+            emit(id, "onLocationChange", event)
         }
 
         map.setOnMarkerClickListener { marker ->
@@ -86,6 +91,12 @@ class AMapView(context: ThemedReactContext) : MapView(context) {
         map.setInfoWindowAdapter(InfoWindowAdapter(context, markers))
     }
 
+    @SuppressLint("MissingSuperCall")
+    override fun onDetachedFromWindow() {
+        super.onDetachedFromWindow()
+        map.isMyLocationEnabled = false
+    }
+
     fun addMarker(marker: AMapMarker) {
         marker.addToMap(map)
         markers.put(marker.marker?.id!!, marker)

android/src/main/java/cn/qiuxiang/react/amap3d/AMapViewManager.kt

@@ -13,9 +13,7 @@ import com.facebook.react.uimanager.annotations.ReactProp
 @Suppress("unused")
 internal class AMapViewManager : ViewGroupManager<AMapView>() {
     companion object {
-        val ANIMATE_TO_COORDINATE = 1
-        val ANIMATE_TO_ZOOM_LEVEL = 2
-        val ANIMATE_TO = 3
+        val ANIMATE_TO = 1
     }
 
     override fun getName(): String {
@@ -163,6 +161,11 @@ internal class AMapViewManager : ViewGroupManager<AMapView>() {
                 coordinate.getDouble("longitude"))))
     }
 
+    @ReactProp(name = "limitRegion")
+    fun setLimitRegion(view: AMapView, limitRegion: ReadableMap) {
+        view.map.setMapStatusLimits(AMapConverter.LatLngBounds(limitRegion))
+    }
+
     @ReactProp(name = "tilt")
     fun changeTilt(view: AMapView, tilt: Float) {
         view.map.moveCamera(CameraUpdateFactory.changeTilt(tilt))

components/MapView.js

@@ -7,7 +7,7 @@ import {
   findNodeHandle,
   requireNativeComponent,
 } from 'react-native'
-import {LatLng} from './PropTypes'
+import {LatLng, Region} from './PropTypes'
 import Marker from './Marker'
 import Overlay from './Overlay'
 import Polyline from './Polyline'
@@ -100,7 +100,12 @@ class MapView extends Component {
     coordinate: LatLng,
 
     /**
-     * 倾斜角度，取值范围 [0, 60]
+     * 设置可见地图区域的矩形
+     */
+    limitRegion: Region,
+
+    /**
+     * 设置倾斜角度，取值范围 [0, 60]
      */
     tilt: PropTypes.number,
 

components/Overlay.js

@@ -15,18 +15,11 @@ class Overlay extends Component {
 
   componentDidUpdate() {
     setTimeout(() => {
-      switch (Platform.OS) {
-        case 'android':
       UIManager.dispatchViewManagerCommand(
         findNodeHandle(this),
         UIManager.AMapOverlay.Commands.update,
         null,
       )
-          break;
-        case 'ios':
-          NativeModules.AMapOverlayManager.update(findNodeHandle(this))
-          break;
-      }
     }, 0)
   }
 

components/PropTypes.js

@@ -5,4 +5,19 @@ const LatLng = PropTypes.shape({
   longitude: PropTypes.number.isRequired,
 })
 
-export {LatLng}
+const Span = PropTypes.shape({
+  latitudeDelta: PropTypes.number.isRequired,
+  longitudeDelta: PropTypes.number.isRequired,
+})
+
+const Region = PropTypes.shape({
+  center: LatLng,
+  span: Span,
+})
+
+export {
+  LatLng,
+  Span,
+  Region,
+}
+

example/android/app/src/main/AndroidManifest.xml

@@ -6,8 +6,6 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
 
-
-    //地图包、搜索包需要的基础权限
     <!--允许程序打开网络套接字-->
     <uses-permission android:name="android.permission.INTERNET" />
     <!--允许程序设置内置sd卡的写权限-->
@@ -21,6 +19,8 @@
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
     <!--允许程序访问CellID或WiFi热点来获取粗略的位置-->
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <!--允许程序访问GPS定位-->
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 
     <uses-sdk
         android:minSdkVersion="16"

ios/AMapMarker.h

@@ -3,15 +3,16 @@
 
 @interface AMapMarker : UIView <MAAnnotation, AMapOverlayDelegate>
 
-@property(nonatomic, copy) RCTBubblingEventBlock onPress;
-@property(nonatomic, copy) RCTBubblingEventBlock onInfoWindowPress;
-@property(nonatomic, copy) RCTBubblingEventBlock onDragStart;
-@property(nonatomic, copy) RCTBubblingEventBlock onDrag;
-@property(nonatomic, copy) RCTBubblingEventBlock onDragEnd;
+@property(nonatomic, copy) RCTBubblingEventBlock onMarkerClick;
+@property(nonatomic, copy) RCTBubblingEventBlock onInfoWindowClick;
+@property(nonatomic, copy) RCTBubblingEventBlock onMarkerDragStart;
+@property(nonatomic, copy) RCTBubblingEventBlock onMarkerDrag;
+@property(nonatomic, copy) RCTBubblingEventBlock onMarkerDragEnd;
 
 - (CLLocationCoordinate2D)coordinate;
 - (NSString *)title;
 - (NSString *)subtitle;
+- (void)resetImage;
 
 - (BOOL)active;
 - (MAAnnotationView *)annotationView;

ios/AMapMarker.m

@@ -6,15 +6,20 @@
     MAPinAnnotationView *_annotationView;
     MAPointAnnotation *_annotation;
     AMapOverlay *_overlay;
+    AMapOverlay *_callout;
     AMapView *_mapView;
     BOOL _active;
+    UIImage *_image;
+    CGPoint _centerOffset;
+    CGPoint _calloutOffset;
 }
 
 - (instancetype)init {
+    self = [super init];
     _annotation = [MAPointAnnotation new];
     _annotationView = [[MAPinAnnotationView alloc] initWithAnnotation:_annotation reuseIdentifier:nil];
     _annotationView.canShowCallout = YES;
-    self = [super init];
+
     return self;
 }
 
@@ -55,6 +60,13 @@
     }
 }
 
+- (void)resetImage {
+    if (_image) {
+        _annotationView.image = _image;
+        _annotationView.centerOffset = _centerOffset;
+    }
+}
+
 - (void)setIcon:(MAPinAnnotationColor)color {
     _annotationView.pinColor = color;
 }
@@ -89,22 +101,51 @@
             _overlay = (AMapOverlay *) subview;
             _overlay.delegate = self;
             _annotationView.image = nil;
+            _image = nil;
         }
         if (atIndex == 1) {
             // TODO: customCalloutView 的位置不太对
-            _annotationView.customCalloutView = [[MACustomCalloutView alloc] initWithCustomView:(id) subview];
+            _callout = (AMapOverlay *) subview;
+            
+            // f**king amap only support button as callout, so below it is.
+            // more funny thing is callout offset shown right when using button. unbelievable!!!
+            _callout.delegate = self;
+            UIButton *button = [[UIButton alloc] initWithFrame:CGRectZero];
+            [button addSubview:(UIView *) subview];
+            
+            _annotationView.customCalloutView = [[MACustomCalloutView alloc] initWithCustomView:button];
         }
     }
 }
 
 #pragma mark AMapOverlayDelegate
 
-- (void)update {
+- (void)update:(AMapOverlay *)overlay {
+    if (overlay == _overlay) {
+        dispatch_async(dispatch_get_main_queue(), ^{
             UIGraphicsBeginImageContextWithOptions([_overlay bounds].size, NO, 0.0f);
             [_overlay.layer renderInContext:UIGraphicsGetCurrentContext()];
             UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
             UIGraphicsEndImageContext();
             _annotationView.image = image;
+            
+            _image = image;
+        });
+    }
+}
+
+- (void)updateLayout:(AMapOverlay *)overlay {
+    CGFloat width = CGRectGetWidth(overlay.bounds);
+    CGFloat height = CGRectGetHeight(overlay.bounds);
+    
+    if (overlay == _overlay) {
+        // change default image center
+        _centerOffset = CGPointMake(0, -height / 2);
+        _annotationView.centerOffset = _centerOffset;
+    } else if (overlay == _callout) {
+        // change default callout offset
+        _annotationView.customCalloutView.bounds = CGRectMake(0, 0, width, height);
+    }
 }
 
 @end

ios/AMapModel.h

 #import <MAMapKit/MAOverlayRenderer.h>
 
-@interface AMapModel : UIView
+@interface AMapModel : UIView <MAOverlay>
 - (MAOverlayRenderer *)renderer;
 @end

ios/AMapOverlay.h

 #import <React/RCTView.h>
 
+@class AMapOverlay;
+
 @protocol AMapOverlayDelegate <NSObject>
 @optional
-- (void)update;
+- (void)update:(AMapOverlay *)overlay;
+- (void)updateLayout:(AMapOverlay *)overlay;
 @end
 
 @interface AMapOverlay : RCTView

ios/AMapOverlay.m

 #import "AMapOverlay.h"
+#import <React/UIView+React.h>
 
 @implementation AMapOverlay {
 }
 
 - (void)update {
-    [self.delegate update];
+    [self.delegate update:self];
+    
+    [self.delegate updateLayout:self];
+}
+
+- (void)didUpdateReactSubviews {
+    [super didUpdateReactSubviews];
+    
+    [self update];
 }
 
 @end

ios/AMapOverlayManager.m

@@ -9,7 +9,7 @@
 @implementation AMapOverlayManager {
 }
 
-RCT_EXPORT_MODULE()
+RCT_EXPORT_MODULE(AMapOverlay)
 
 - (UIView *)view {
     return [AMapOverlay new];

ios/AMapPolyline.m

@@ -4,11 +4,23 @@
 #pragma ide diagnostic ignored "OCUnusedMethodInspection"
 
 @implementation AMapPolyline {
-    MAPolyline *_polyline;
-    MAPolylineRenderer *_renderer;
+    MAMultiPolyline *_polyline;
+    MAMultiColoredPolylineRenderer *_renderer;
+    
     CGFloat _width;
     UIColor *_color;
+    NSArray *_colors;
+    CGFloat _opacity;
     BOOL _dashed;
+    BOOL _gradient;
+}
+
+- (instancetype)init {
+    if (self = [super init]) {
+        _polyline = [MAMultiPolyline polylineWithCoordinates:NULL count:0 drawStyleIndexes:NULL];
+    }
+        
+    return self;
 }
 
 - (void)setCoordinates:(NSArray<Coordinate *> *)coordinates {
@@ -16,7 +28,8 @@
     for (NSUInteger i = 0; i < coordinates.count; i++) {
         coords[i] = coordinates[i].coordinate;
     }
-    _polyline = [MAPolyline polylineWithCoordinates:coords count:coordinates.count];
+    
+    [_polyline setPolylineWithCoordinates:coords count:coordinates.count];
 }
 
 - (void)setWidth:(CGFloat)width {
@@ -24,16 +37,58 @@
     _renderer.lineWidth = width;
 }
 
+- (void)setOpacity:(CGFloat)opacity {
+    opacity = MAX(0.01, opacity); // 线段最低的opacity是0.01不能再小了，否则干掉多好。Android系统上默认为此逻辑。
+    _opacity = opacity;
+    _renderer.alpha = opacity;
+}
+
 - (void)setColor:(UIColor *)color {
     _color = color;
     _renderer.strokeColor = color;
 }
 
+- (void)setColors:(NSArray *)colors {
+    // process colors -> strokeColor |egg: [black, black, black, white, white, black] => [black, white, black] + [3, 5]|
+    NSMutableArray *strokeColors = [[NSMutableArray alloc] init];
+    NSMutableArray *indexs = [[NSMutableArray alloc] init];
+    
+    if (colors.count > 0) {
+        UIColor *lastColor = [colors firstObject];
+        [strokeColors addObject:lastColor];
+        
+        for (NSUInteger index = 1; index < colors.count; index++) {
+            UIColor *color = colors[index];
+            if (![color isEqual:lastColor]) {
+                [strokeColors addObject:color];
+                [indexs addObject:@(index)]; // index is the NEXT color
+                
+                lastColor = color;
+            }
+        }
+        
+        if (strokeColors.count == 1) {
+            [indexs addObject:@(colors.count)];
+        }
+    }
+    
+    _colors = strokeColors;
+    _renderer.strokeColors = strokeColors;
+    
+    // change polyline
+    [_polyline setDrawStyleIndexes:@[@(1), @(2)]];
+}
+
 - (void)setDashed:(BOOL)dashed {
     _dashed = dashed;
     _renderer.lineDash = dashed;
 }
 
+- (void)setGradient:(BOOL)gradient {
+    _gradient = gradient;
+    _renderer.gradient = gradient;
+}
+
 - (CLLocationCoordinate2D)coordinate {
     return _polyline.coordinate;
 }
@@ -46,10 +101,14 @@
     if (_color == nil) {
         _color = UIColor.blackColor;
     }
-    _renderer = [[MAPolylineRenderer alloc] initWithPolyline:_polyline];
+    
+    _renderer = [[MAMultiColoredPolylineRenderer alloc] initWithMultiPolyline:_polyline];
     _renderer.lineWidth = _width;
     _renderer.strokeColor = _color;
+    _renderer.strokeColors = _colors;
+    _renderer.alpha = _opacity;
     _renderer.lineDash = _dashed;
+    _renderer.gradient = _gradient;
     return _renderer;
 }
 

ios/AMapPolylineManager.m

@@ -18,7 +18,10 @@ RCT_EXPORT_MODULE()
 
 RCT_EXPORT_VIEW_PROPERTY(coordinates, CoordinateArray)
 RCT_EXPORT_VIEW_PROPERTY(width, CGFloat)
+RCT_EXPORT_VIEW_PROPERTY(opacity, CGFloat)
 RCT_EXPORT_VIEW_PROPERTY(color, UIColor)
 RCT_EXPORT_VIEW_PROPERTY(dashed, BOOL)
+RCT_EXPORT_VIEW_PROPERTY(gradient, BOOL)
+RCT_EXPORT_VIEW_PROPERTY(colors, UIColorArray)
 
 @end

ios/AMapView.m

+#import <React/UIView+React.h>
 #import "AMapView.h"
 #import "AMapMarker.h"
 #import "AMapPolyline.h"
@@ -28,6 +29,7 @@
 }
 
 - (void)insertReactSubview:(id <RCTComponent>)subview atIndex:(NSInteger)atIndex {
+    [super insertReactSubview:(UIView *) subview atIndex:atIndex];
     if ([subview isKindOfClass:[AMapMarker class]]) {
         ((AMapMarker *) subview).mapView = self;
         [self addAnnotation:(id <MAAnnotation>) subview];
@@ -38,6 +40,7 @@
 }
 
 - (void)removeReactSubview:(id <RCTComponent>)subview {
+    [super removeReactSubview:(UIView *) subview];
     if ([subview isKindOfClass:[AMapMarker class]]) {
         [self removeAnnotation:(id <MAAnnotation>) subview];
     }
@@ -46,4 +49,7 @@
     }
 }
 
+- (void)didUpdateReactSubviews {
+}
+
 @end

ios/AMapViewManager.m

@@ -17,6 +17,9 @@ RCT_EXPORT_MODULE()
 
 - (UIView *)view {
     AMapView *mapView = [AMapView new];
+    // when scroll view contains Map maybe we need stop Map Rending Cost.
+    mapView.runLoopMode = NSDefaultRunLoopMode;
+    mapView.allowsAnnotationViewSorting = YES;
     mapView.centerCoordinate = CLLocationCoordinate2DMake(39.9042, 116.4074);
     mapView.zoomLevel = 10;
     mapView.delegate = self;
@@ -39,6 +42,7 @@ RCT_EXPORT_VIEW_PROPERTY(rotateEnabled, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(tiltEnabled, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(mapType, MAMapType)
 RCT_EXPORT_VIEW_PROPERTY(coordinate, CLLocationCoordinate2D)
+RCT_EXPORT_VIEW_PROPERTY(limitRegion, MACoordinateRegion)
 RCT_EXPORT_VIEW_PROPERTY(tilt, CGFloat)
 
 RCT_EXPORT_VIEW_PROPERTY(onPress, RCTBubblingEventBlock)
@@ -96,7 +100,11 @@ RCT_EXPORT_METHOD(animateTo:(nonnull NSNumber *)reactTag data:(NSArray *)data) {
     if ([annotation isKindOfClass:[AMapMarker class]]) {
         AMapMarker *marker = (AMapMarker *) annotation;
         if (marker.active) {
+            dispatch_async(dispatch_get_main_queue(), ^{
+                // directly call selectAnnotation not work, because of there has no current AnnotationView presentation.
+                // use RUNLOOP
                 [mapView selectAnnotation:marker animated:YES];
+            });
         }
         return marker.annotationView;
     }
@@ -139,6 +147,9 @@ RCT_EXPORT_METHOD(animateTo:(nonnull NSNumber *)reactTag data:(NSArray *)data) {
                 @"longitude": @(marker.coordinate.longitude),
         });
     }
+    if (newState == MAAnnotationViewDragStateCanceling || newState == MAAnnotationViewDragStateEnding) {
+        [marker resetImage];
+    }
 }
 
 @end

ios/RCTConvert+AMapView.m

 #import <MAMapKit/MAMapView.h>
+#import <MAMapKit/MAGeometry.h>
 #import <React/RCTConvert.h>
 #import <React/RCTConvert+CoreLocation.h>
 #import "Coordinate.h"
@@ -23,6 +24,29 @@ RCT_ENUM_CONVERTER(MAPinAnnotationColor, (@{
     return [[Coordinate alloc] initWithCoordinate: [self CLLocationCoordinate2D:json]];
 }
 
++ (MACoordinateSpan)MACoordinateSpan:(id)json {
+    json = [self NSDictionary:json];
+    return (MACoordinateSpan){
+        [self CLLocationDegrees:json[@"latitudeDelta"]],
+        [self CLLocationDegrees:json[@"longitudeDelta"]]
+    };
+}
+
++ (MACoordinateRegion)MACoordinateRegion:(id)json {
+    return (MACoordinateRegion){
+        [self CLLocationCoordinate2D:json[@"center"]],
+        [self MACoordinateSpan:json[@"span"]]
+    };
+}
+
++ (MAMapStatus *)MAMapStatus:(id)json {
+    return [MAMapStatus statusWithCenterCoordinate:(json[@"centerCoordinate"] ? [self CLLocationCoordinate2D:json[@"centerCoordinate"]] : (CLLocationCoordinate2D){-1.0f, -1.0f})
+                                    zoomLevel:json[@"zoomLevel"] ? [self CGFloat:json[@"zoomLevel"]] : -1
+                                    rotationDegree:json[@"rotationDegree"] ? [self CGFloat:json[@"rotationDegree"]] : -1
+                                    cameraDegree:json[@"cameraDegree"] ? [self CGFloat:json[@"cameraDegree"]] : -1
+                                    screenAnchor:json[@"screenAnchor"] ? [self CGPoint:json[@"screenAnchor"]] : CGPointMake(-1, -1)];
+}
+
 RCT_ARRAY_CONVERTER(Coordinate)
 
 @end