实现 iOS polygon 接口

README.md

@@ -161,8 +161,8 @@ import MapView from 'react-native-amap3d'
   - [x] 基本属性及事件
   - [x] 自定义信息窗体
   - [x] 自定义图标
-- [ ] 折线绘制（Polyline）🚀
-- [ ] 多边形绘制（Polygon）
-- [ ] 圆形绘制（Circle）
+- [x] 折线绘制（Polyline）
+- [x] 多边形绘制（Polygon）
+- [ ] 圆形绘制（Circle）🚀
 - [ ] POI 检索
 - [ ] 地理编码转换

components/Polygon.js

 import React, {PropTypes, Component} from 'react'
-import {requireNativeComponent, View, PixelRatio} from 'react-native'
+import {requireNativeComponent, View, PixelRatio, Platform} from 'react-native'
 import {LatLng} from './PropTypes'
 
 class Polygon extends Component {
@@ -16,7 +16,11 @@ class Polygon extends Component {
   render() {
     const props = {
       ...this.props,
+      ...Platform.select({
+        android: {
           strokeWidth: PixelRatio.getPixelSizeForLayoutSize(this.props.strokeWidth),
+        },
+      }),
     }
     return <AMapPolygon {...props}/>
   }

ios/AMapPolygon.h

+#import <Foundation/Foundation.h>
+#import <MAMapKit/MAMapKit.h>
+
+#pragma ide diagnostic ignored "OCUnusedPropertyInspection"
+
+@interface AMapPolygon : UIView <MAOverlay>
+
+@property(nonatomic, readonly) CLLocationCoordinate2D coordinate;
+@property(nonatomic, readonly) MAMapRect boundingMapRect;
+
+- (MAOverlayRenderer *)renderer;
+
+@end

ios/AMapPolygon.m

+#import "AMapPolygon.h"
+#import "Coordinate.h"
+
+#pragma ide diagnostic ignored "OCUnusedMethodInspection"
+
+@implementation AMapPolygon {
+    MAPolygon *_polygon;
+    MAPolygonRenderer *_renderer;
+    CGFloat _strokeWidth;
+    UIColor *_strokeColor;
+    UIColor *_fillColor;
+}
+
+- (void)setCoordinates:(NSArray<Coordinate *> *)coordinates {
+    CLLocationCoordinate2D coords[coordinates.count];
+    for (NSUInteger i = 0; i < coordinates.count; i++) {
+        coords[i] = coordinates[i].coordinate;
+    }
+    if (_strokeColor == nil) {
+        _strokeColor = UIColor.blackColor;
+    }
+    _polygon = [MAPolygon polygonWithCoordinates:coords count:coordinates.count];
+    _renderer = [[MAPolygonRenderer alloc] initWithPolygon:_polygon];
+    _renderer.lineWidth = _strokeWidth;
+    _renderer.strokeColor = _strokeColor;
+    _renderer.fillColor = _fillColor;
+}
+
+- (void)setStrokeWidth:(CGFloat)strokeWidth {
+    _strokeWidth = strokeWidth;
+    _renderer.lineWidth = strokeWidth;
+}
+
+- (void)setStrokeColor:(UIColor *)strokeColor {
+    _strokeColor = strokeColor;
+    _renderer.strokeColor = strokeColor;
+}
+
+- (void)setFillColor:(UIColor *)fillColor {
+    _fillColor = fillColor;
+    _renderer.fillColor = fillColor;
+}
+
+- (CLLocationCoordinate2D)coordinate {
+    return _polygon.coordinate;
+}
+
+- (MAMapRect)boundingMapRect {
+    return _polygon.boundingMapRect;
+}
+
+- (MAOverlayRenderer *)renderer {
+    return _renderer;
+}
+
+@end

ios/AMapPolygonManager.m

+#import <MAMapKit/MAMapView.h>
+#import <React/RCTViewManager.h>
+#import "AMapPolygon.h"
+
+#pragma ide diagnostic ignored "OCUnusedClassInspection"
+
+@interface AMapPolygonManager : RCTViewManager <MAMapViewDelegate>
+@end
+
+@implementation AMapPolygonManager {
+}
+
+RCT_EXPORT_MODULE()
+
+- (UIView *)view {
+    return [AMapPolygon new];
+}
+
+RCT_EXPORT_VIEW_PROPERTY(coordinates, CoordinateArray)
+RCT_EXPORT_VIEW_PROPERTY(strokeWidth, CGFloat)
+RCT_EXPORT_VIEW_PROPERTY(strokeColor, UIColor)
+RCT_EXPORT_VIEW_PROPERTY(fillColor, UIColor)
+
+@end

ios/AMapPolyline.h

 #import <Foundation/Foundation.h>
 #import <MAMapKit/MAMapKit.h>
 
+#pragma ide diagnostic ignored "OCUnusedPropertyInspection"
+
 @interface AMapPolyline : UIView <MAOverlay>
 
 @property(nonatomic, readonly) CLLocationCoordinate2D coordinate;

ios/AMapPolyline.m

@@ -16,10 +16,10 @@
     for (NSUInteger i = 0; i < coordinates.count; i++) {
         coords[i] = coordinates[i].coordinate;
     }
-    _polyline = [MAPolyline polylineWithCoordinates:coords count:coordinates.count];
     if (_color == nil) {
         _color = UIColor.blackColor;
     }
+    _polyline = [MAPolyline polylineWithCoordinates:coords count:coordinates.count];
     _renderer = [[MAPolylineRenderer alloc] initWithPolyline:_polyline];
     _renderer.lineWidth = _width;
     _renderer.strokeColor = _color;

ios/AMapView.m

 #import "AMapView.h"
 #import "AMapMarker.h"
 #import "AMapPolyline.h"
+#import "AMapPolygon.h"
 
 #pragma ide diagnostic ignored "OCUnusedMethodInspection"
 
@@ -32,7 +33,7 @@
         ((AMapMarker *) subview).mapView = self;
         [self addAnnotation:(id <MAAnnotation>) subview];
     }
-    if ([subview isKindOfClass:[AMapPolyline class]]) {;
+    if ([subview isKindOfClass:[AMapPolyline class]] || [subview isKindOfClass:[AMapPolygon class]]) {;
         [self addOverlay:(id <MAOverlay>) subview];
     }
 }
@@ -41,6 +42,9 @@
     if ([subview isKindOfClass:[AMapMarker class]]) {
         [self removeAnnotation:(id <MAAnnotation>) subview];
     }
+    if ([subview isKindOfClass:[AMapPolyline class]] || [subview isKindOfClass:[AMapPolygon class]]) {
+        [self removeOverlay:(id <MAOverlay>) subview];
+    }
 }
 
 @end

ios/AMapViewManager.m

@@ -3,6 +3,7 @@
 #import "AMapView.h"
 #import "AMapMarker.h"
 #import "AMapPolyline.h"
+#import "AMapPolygon.h"
 
 #pragma ide diagnostic ignored "OCUnusedClassInspection"
 #pragma ide diagnostic ignored "-Woverriding-method-mismatch"
@@ -88,6 +89,9 @@ RCT_EXPORT_VIEW_PROPERTY(onLocation, RCTBubblingEventBlock)
     if ([overlay isKindOfClass:[AMapPolyline class]]) {
         return ((AMapPolyline *)overlay).renderer;
     }
+    if ([overlay isKindOfClass:[AMapPolygon class]]) {
+        return ((AMapPolygon *)overlay).renderer;
+    }
     return nil;
 }