Question

出于某种原因，我似乎无法使用tap和longtap以及所有其他委托事件在我的模拟器中工作。我认为我正确安装了所有内容，因为地图显示在屏幕上，点击自定义按钮我可以在地图上放置标记，但它无法识别委托事件。我做错了吗？

mapviewcontroller.h

#import <UIKit/UIKit.h>
#import <GoogleMaps/GoogleMaps.h>
#import <CoreLocation/CoreLocation.h>

@interface MapViewController : UIViewController <GMSMapViewDelegate, CLLocationManagerDelegate>

@property (weak, nonatomic) IBOutlet UIView *mapContainer;
- (IBAction)addmarker:(id)sender;
@end

mapviewcontroller.m

#import "MapViewController.h"

@interface MapViewController ()

@end

@implementation MapViewController{
    GMSMapView *mapView;
}
@synthesize mapContainer;

- (void)viewDidLoad
{
[super viewDidLoad];
mapView.delegate = self;
mapView.myLocationEnabled = YES;
mapView.settings.myLocationButton = YES;
mapView.settings.compassButton = YES;
//CLLocation *myLoc = mapView.myLocation;
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.86 longitude:151.20 zoom:15];
mapView = [GMSMapView mapWithFrame:CGRectMake(0, 0, self.mapContainer.frame.size.width, self.mapContainer.frame.size.height) camera:camera];
[self.mapContainer addSubview:mapView];
}

- (void) mapView: (GMSMapView *) mapView didTapAtCoordinate: (CLLocationCoordinate2D) coordinate{
NSLog(@"%f, %f", coordinate.latitude, coordinate.longitude);
}

- (void) mapView:(GMSMapView *)mapView didLongPressAtCoordinate:(CLLocationCoordinate2D)coordinate{
NSLog(@"tapped");
}

- (void) mapView:(GMSMapView *)mapView didTapInfoWindowOfMarker:(GMSMarker *)marker{
NSLog(@"tapped info");
}

- (void) mapView:(GMSMapView *)mapView didBeginDraggingMarker:(GMSMarker *)marker{
NSLog(@"dragged");
}

- (IBAction)addmarker:(id)sender {
CLLocationCoordinate2D position = CLLocationCoordinate2DMake(-33.86, 151.20);
GMSMarker *marker = [GMSMarker markerWithPosition:position];
marker.title = @"hello";
marker.map = mapView;
}
@end

唯一有效的是IBAction。我的位置和指南针按钮也不显示。为什么它不起作用的任何想法？我宣布代表们......

Answer 1

您需要在对象初始化后设置所有属性。

- (void)viewDidLoad {
[super viewDidLoad];

GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.86 longitude:151.20 zoom:15];
mapView = [GMSMapView mapWithFrame:CGRectMake(0, 0, self.mapContainer.frame.size.width, self.mapContainer.frame.size.height) camera:camera];
mapView.delegate = self;
mapView.myLocationEnabled = YES;
mapView.settings.myLocationButton = YES;
mapView.settings.compassButton = YES;
[self.mapContainer addSubview:mapView];
}

ios google maps委托不在模拟器中触发的事件

1 个答案: