init project

ios/Classes/OverlayController/AMapPolylineController.m

@@ -0,0 +1,125 @@
+//
+//  AMapPolylineController.m
+//  amap_map
+//
+//  Created by lly on 2020/11/6.
+//
+
+#import "AMapPolylineController.h"
+#import "AMapPolyline.h"
+#import "AMapJsonUtils.h"
+#import "AMapMarker.h"
+#import "MAPolyline+Flutter.h"
+#import "MAPolylineRenderer+Flutter.h"
+#import "AMapConvertUtil.h"
+#import "FlutterMethodChannel+MethodCallDispatch.h"
+
+@interface AMapPolylineController ()
+
+@property (nonatomic,strong) NSMutableDictionary<NSString*,AMapPolyline*> *polylineDict;
+@property (nonatomic,strong) FlutterMethodChannel *methodChannel;
+@property (nonatomic,strong) NSObject<FlutterPluginRegistrar> *registrar;
+@property (nonatomic,strong) MAMapView *mapView;
+
+@end
+
+
+@implementation AMapPolylineController
+
+- (instancetype)init:(FlutterMethodChannel*)methodChannel
+             mapView:(MAMapView*)mapView
+           registrar:(NSObject<FlutterPluginRegistrar>*)registrar {
+    self = [super init];
+    if (self) {
+        _methodChannel = methodChannel;
+        _mapView = mapView;
+        _polylineDict = [NSMutableDictionary dictionaryWithCapacity:1];
+        _registrar = registrar;
+        
+        __weak typeof(self) weakSelf = self;
+        [_methodChannel addMethodName:@"polylines#update" withHandler:^(FlutterMethodCall * _Nonnull call, FlutterResult  _Nonnull result) {
+            id polylinesToAdd = call.arguments[@"polylinesToAdd"];
+            if ([polylinesToAdd isKindOfClass:[NSArray class]]) {
+                [weakSelf addPolylines:polylinesToAdd];
+            }
+            id polylinesToChange = call.arguments[@"polylinesToChange"];
+            if ([polylinesToChange isKindOfClass:[NSArray class]]) {
+                [weakSelf changePolylines:polylinesToChange];
+            }
+            id polylineIdsToRemove = call.arguments[@"polylineIdsToRemove"];
+            if ([polylineIdsToRemove isKindOfClass:[NSArray class]]) {
+                [weakSelf removePolylineIds:polylineIdsToRemove];
+            }
+            result(nil);
+            
+        }];
+    }
+    return self;
+}
+
+- (nullable AMapPolyline *)polylineForId:(NSString *)polylineId {
+    return _polylineDict[polylineId];
+}
+
+- (void)addPolylines:(NSArray*)polylinesToAdd {
+    for (NSDictionary* polyline in polylinesToAdd) {
+        AMapPolyline *polylineModel = [AMapJsonUtils modelFromDict:polyline modelClass:[AMapPolyline class]];
+        if (polylineModel.customTexture) {
+            polylineModel.strokeImage = [AMapConvertUtil imageFromRegistrar:self.registrar iconData:polylineModel.customTexture];
+        }
+        // 先加入到字段中，避免后续的地图回到里，取不到对应的overlay数据
+        if (polylineModel.id_) {
+            _polylineDict[polylineModel.id_] = polylineModel;
+        }
+        [self.mapView addOverlay:polylineModel.polyline];
+    }
+}
+
+- (void)changePolylines:(NSArray*)polylinesToChange {
+    for (NSDictionary* polylineToChange in polylinesToChange) {
+        AMapPolyline *polyline = [AMapJsonUtils modelFromDict:polylineToChange modelClass:[AMapPolyline class]];
+        AMapPolyline *currentPolyline = _polylineDict[polyline.id_];
+        NSAssert(currentPolyline != nil, @"需要修改的Polyline不存在");
+        // 如果图片纹理变了，则存储和解析新的图标
+        if ([AMapConvertUtil checkIconDescriptionChangedFrom:currentPolyline.customTexture to:polyline.customTexture]) {
+            currentPolyline.strokeImage = [AMapConvertUtil imageFromRegistrar:self.registrar iconData:polyline.customTexture];
+            currentPolyline.customTexture = polyline.customTexture;
+        }
+        //更新除了图标之外的其它信息
+        [currentPolyline updatePolyline:polyline];
+        MAOverlayRenderer *render = [self.mapView rendererForOverlay:currentPolyline.polyline];
+        if (render && [render isKindOfClass:[MAPolylineRenderer class]]) { // render没有复用，只要添加过，就一定可以获取到
+            [(MAPolylineRenderer *)render updateRenderWithPolyline:currentPolyline];
+        }
+    }
+}
+
+- (void)removePolylineIds:(NSArray*)polylineIdsToRemove {
+    for (NSString* polylineId in polylineIdsToRemove) {
+        if (!polylineId) {
+            continue;
+        }
+        AMapPolyline* polyline = _polylineDict[polylineId];
+        if (!polyline) {
+            continue;
+        }
+        [self.mapView removeOverlay:polyline.polyline];
+        [_polylineDict removeObjectForKey:polylineId];
+    }
+}
+
+//MARK: Marker的回调
+
+- (BOOL)onPolylineTap:(NSString*)polylineId {
+    if (!polylineId) {
+        return NO;
+    }
+    AMapPolyline* polyline = _polylineDict[polylineId];
+    if (!polyline) {
+        return NO;
+    }
+    [_methodChannel invokeMethod:@"polyline#onTap" arguments:@{@"polylineId" : polylineId}];
+    return YES;
+}
+
+@end