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