仿大众点评 区域内搜索
区域内搜索
1 申请KEY
（1）到高德开放平台-我的应用申请iOS key；
2.集成高德地图SDK
（2）集成高德地图SDK，我是通过 CocoaPods 来集成的，好处就不说了~
platform :ios, '11.0'
target 'CJMap' do
pod 'AMapSearch' #搜索服务SDK
pod 'AMapLocation'
pod 'AMapNavi'#这个要放到其他高德sdk后
pod 'JZLocationConverter'#gps纠偏
end
3.添加位置权限
<key>NSLocationAlwaysUsageDescription</key>
<string>是否允许使用定位来给您提供服务？</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>是否允许使用定位来给您提供服务？</string>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
4.添加KEY
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
[AMapServices sharedServices].apiKey = MapKey;
[AMapServices sharedServices].enableHTTPS = YES;
return YES;
}
5.初始化地图,和搜索API
//初始化地图,和搜索API
- (void)initMapView {
self.mapView = [[MAMapView alloc] initWithFrame:self.view.bounds];
self.mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
self.mapView.delegate = self;
// 不支持旋转
self.mapView.rotateEnabled = NO;
//倾斜收拾
self.mapView.rotateCameraEnabled = NO;
// 表示不显示比例尺
self.mapView.showsScale= NO;
///如果您需要进入地图就显示定位小蓝点，则需要下面两行代码
self.mapView.showsUserLocation = YES;
self.mapView.zoomLevel = 14;
self.mapView.userTrackingMode = MAUserTrackingModeFollow;
[self.view addSubview:self.mapView];
self.search = [[AMapSearchAPI alloc] init];
self.search.delegate = self;
}
5.POI搜索获取当前左上角和右下角的经纬度, 使用POI多边形搜索,构成一个封闭的矩形
/**
* @brief 地图区域改变完成后会调用此接口
* @param mapView 地图View
* @param animated 是否动画
*/
- (void)mapView:(MAMapView *)mapView regionDidChangeAnimated:(BOOL)animated{
CLLocationCoordinate2D leftTop = [mapView convertPoint:CGPointMake(0, 0) toCoordinateFromView:self.view];
self.leftTop = leftTop;
CLLocationCoordinate2D rightBtm = [mapView convertPoint:CGPointMake(self.mapView.mj_w, self.mapView.mj_h) toCoordinateFromView:self.view];
self.rightBtm = rightBtm;
}
6.按钮点击事件,执行搜索操作
// 按钮click
-(void)buttonClick{
NSLog(@"click");
NSArray *points = [NSArray arrayWithObjects:
[AMapGeoPoint locationWithLatitude:self.leftTop.latitude longitude:self.leftTop.longitude],
[AMapGeoPoint locationWithLatitude:self.rightBtm.latitude longitude:self.rightBtm.longitude],
nil];
AMapGeoPolygon *polygon = [AMapGeoPolygon polygonWithPoints:points];
AMapPOIPolygonSearchRequest *request = [[AMapPOIPolygonSearchRequest alloc] init];
request.polygon = polygon;
request.keywords = @"餐饮";
request.requireExtension = YES;
[self.search AMapPOIPolygonSearch:request];
}
7.POI 多边形搜索回调.
/* POI 搜索回调. */
- (void)onPOISearchDone:(AMapPOISearchBaseRequest *)request response:(AMapPOISearchResponse *)response
{
[self.mapView removeAnnotations:self.searchResultArr];
[self.searchResultArr removeAllObjects];
if (response.pois.count == 0)
{
return;
}
[response.pois enumerateObjectsUsingBlock:^(AMapPOI * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
// 这里使用了自定义的坐标是为了区分系统坐标
CJSearchPOIPointAnnotation *annotation = [[CJSearchPOIPointAnnotation alloc] init];
[annotation setCoordinate:CLLocationCoordinate2DMake(obj.location.latitude, obj.location.longitude)];
[annotation setTitle:[NSString stringWithFormat:@"%@", obj.name]];
// [annotation setSubtitle:[NSString stringWithFormat:@"%zd米",obj.distance]];
[annotation setSubtitle:@""];
[self.searchResultArr addObject:annotation];
}];
// 向地图窗口添加一组标注
[self.mapView addAnnotations:self.searchResultArr];
}
8,地图添加上自定义图标的大头针即可
//只要有标注点需要显示，该回调就会被调用
- (MAAnnotationView *)mapView:(MAMapView *)mapView viewForAnnotation:(id<MAAnnotation>)annotation {
// 自己的位置
if ([annotation isKindOfClass:[MAUserLocation class]]) {
return nil;
}else if ([annotation isKindOfClass:[CJSearchPOIPointAnnotation class]] )
{
static NSString *tipIdentifier = @"ZZOilAnnotation";
NSLog(@"annotation.title----%@",annotation.title);
MAAnnotationView *poiAnnotationView = (MAAnnotationView*)[self.mapView dequeueReusableAnnotationViewWithIdentifier:tipIdentifier];
if (poiAnnotationView == nil)
{
poiAnnotationView = [[MAAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:tipIdentifier];
}
poiAnnotationView.canShowCallout= YES; //设置气泡可以弹出，默认为NO
poiAnnotationView.selected = YES; //设置标注动画显示，默认为NO
poiAnnotationView.image = [UIImage imageNamed:@"map_local_oil1"];
poiAnnotationView.centerOffset= CGPointMake(0, mapCenterOffset);
[poiAnnotationView setSelected:YES animated:NO];
// 点击大头针显示的右边视图
UIButton *rightButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
rightButton.backgroundColor = [UIColor redColor];
[rightButton setTitle:@"导航" forState:UIControlStateNormal];
[rightButton addTarget:self action:@selector(navBtnClick) forControlEvents:UIControlEventTouchUpInside];
poiAnnotationView.rightCalloutAccessoryView = rightButton;
return poiAnnotationView;
}
return nil;
}
更多关于高德地图的完整代码在完整代码GitHub
(包括:高德地图展示,当前位置,自定义圆点图,圆点带方向旋转,驾车路线轨迹,区域内搜索(类似于大众点评),地理编码(地址转坐标),反地理编码(坐标转地址),自定义地图样式)
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