init project

ios/Classes/Model/AMapPolygon.m

@@ -0,0 +1,97 @@
+//
+//  AMapPolygon.m
+//  amap_map
+//
+//  Created by lly on 2020/11/12.
+//
+
+#import "AMapPolygon.h"
+#import "AMapConvertUtil.h"
+#import "MAPolygon+Flutter.h"
+
+@interface AMapPolygon ()
+
+@property (nonatomic, strong,readwrite) MAPolygon *polygon;
+
+@end
+
+
+@implementation AMapPolygon
+
+- (instancetype)init {
+    self = [super init];
+    if (self) {
+        _visible = YES;
+    }
+    return self;
+}
+
+- (void)postHookWith:(NSDictionary *)dict {
+    NSArray *points = dict[@"points"];
+    NSAssert(points.count > 0, @"polygon传入的经纬度点有误！");
+    //如果经纬度点已经有值，需要手动释放内存
+    if (_coords != NULL) {
+        free(_coords);
+        _coords = NULL;
+    }
+    _coordCount = points.count;
+    _coords = (CLLocationCoordinate2D*)malloc(_coordCount * sizeof(CLLocationCoordinate2D));
+    for (NSUInteger index = 0; index < _coordCount; index ++) {
+        NSArray *point = points[index];
+        _coords[index] = [AMapConvertUtil coordinateFromArray:point];
+    }
+}
+
+- (void)dealloc {
+    if (_coords != NULL) {
+        free(_coords);
+        _coords = NULL;
+    }
+}
+
+- (MAPolygon *)polygon {
+    if (_polygon == nil) {
+        _polygon = [[MAPolygon alloc] initWithPolygonId:self.id_];
+        [_polygon setPolygonWithCoordinates:_coords count:_coordCount];
+    }
+    return _polygon;
+}
+
+//更新polyline
+- (void)updatePolygon:(AMapPolygon *)polygon {
+    NSAssert((polygon != nil && [self.id_ isEqualToString:polygon.id_]), @"更新AMapPolygon数据异常");
+    if ([self checkCoordsEqualWithPolyline:polygon] == NO) {//polyline更新了经纬度坐标
+        if (_coords != NULL) {
+            free(_coords);
+            _coords = NULL;
+        }
+        _coordCount = polygon->_coordCount;
+        _coords = (CLLocationCoordinate2D*)malloc(_coordCount * sizeof(CLLocationCoordinate2D));
+        for (NSUInteger index = 0; index < _coordCount; index ++) {
+            _coords[index] = polygon->_coords[index];
+        }
+    }
+    self.strokeWidth = polygon.strokeWidth;
+    self.strokeColor = polygon.strokeColor;
+    self.fillColor = polygon.fillColor;
+    self.visible = polygon.visible;
+    self.joinType = polygon.joinType;
+    if (_polygon) {
+        [_polygon setPolygonWithCoordinates:_coords count:_coordCount];
+    }
+}
+
+- (BOOL)checkCoordsEqualWithPolyline:(AMapPolygon *)newPolygon {
+    if (_coordCount != newPolygon->_coordCount) {//数量不同，则直接更新
+        return NO;
+    }
+    for (NSUInteger index = 0; index < _coordCount; index++) {
+        if ([AMapConvertUtil isEqualWith:_coords[index] to:newPolygon->_coords[index]] == NO) {
+            return NO;
+        }
+    }
+    return YES;
+}
+
+
+@end