无法将google地图GMSMapView放在主要主视图的子视图中？

Question

我正在努力解决这个问题!我想将谷歌地图添加GMSMapView到我UIView的主要部分中.UIViewViewController

它应该很简单......我用故事板创建了一个UIView我想要的尺寸,并把它放在主要部分UIView.

接口文件的片段:

@interface MapViewController : UIViewController <CLLocationManagerDelegate>

@property(nonatomic) IBOutlet GMSMapView *mapView;

用mapView链接到这UIView里面UIView.

我在实施中做了什么:

@synthesize mapView = _mapView;

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.8683
                                                            longitude:151.2086
                                                                 zoom:10];
    _mapView = [GMSMapView mapWithFrame:_mapView.bounds camera:camera];
    _mapView.myLocationEnabled = YES;

}

这应该工作,不应该吗？我得到的是我的内部UIView是空的.

如果我在谷歌的起始指南谷歌地图集成文档后实例化地图,它可以工作,但它将地图分配给MAIN UIView,这是另一回事.

我甚至尝试将故事板中mapView的类更改UIView为GMSMapView.地图显示在内部视图中,但它以奇怪的方式进行初始化

1. 系统抛出错误说

"无法制作完整的帧缓冲区"

并减慢了很多视图的加载(在模拟器上需要2-3秒)

2. 地图在viewDidLoad方法中完成的任何相机更改中都没有响应.

有什么建议？

我在StackOverflow上阅读了一些帖子,但找不到有效的解决方案:(

Answer 1

根据其他答案,这里有三种实际工作方式.

1. 在XIB上构建一个视图,并在XIB构建器中将其类更改为GMSMapView.见下面的*map1.要么...
2. 编码所有.将地图添加为主视图的子视图.见下面的*map2.要么...
3. 将地图添加为XIB中已有出口的另一个子视图的子视图.*map3如下.

.H

@interface GPViewController : UIViewController
@property (strong, nonatomic) IBOutlet GMSMapView *map1;
@property (strong, nonatomic) IBOutlet UIView *plainViewOnXIBHoldsMap3;
@end

.M

- (void)viewDidLoad{
    [super viewDidLoad];
    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.0
                                                        longitude:151.20
                                                             zoom:6];

    /* Option 1. view on XIB is class GSMMapView */
    self.map1.camera = camera;

    /* Option 2. add a map as a subview */
    GMSMapView *map2 = [GMSMapView mapWithFrame:CGRectMake(0, 0, 100, 100) camera:camera];
    [self.view addSubview:map2];

    /* Option 3. add a map to a subview already on the XIB */
    GMSMapView *map3 = [GMSMapView mapWithFrame:self.plainViewOnXIBHoldsMap3.bounds camera:camera];
    [self.plainViewOnXIBHoldsMap addSubview:map3];
}

Answer 2

已经签出并在Swift 2.0中使用了cloudsurfin提供的所有三个选项.为那些在Swift 2.0中遇到同样问题的人翻译他的答案:

选项1 - 在XIB构建器上放置一个视图并将其类更改为GMSMapView.

选项2 - 全部编码.将地图添加为主视图的子视图.

Option3 - 将地图添加为已存在的UIView子视图的GMSMapView子视图.

选项1的 XIB准备说明:

1)为您的视图设置一个类:

2)不要忘记将您的视图与代码中的插座连接:

import UIKit
import GoogleMaps

class MapViewController: UIViewController {

    @IBOutlet weak var map1 : GMSMapView!

    @IBOutlet weak var map3 : UIView!

    override func viewDidLoad() {
        super.viewDidLoad()

        let camera = GMSCameraPosition.cameraWithLatitude(53.9,
        longitude: 27.5667, zoom: 6)

        // Option 1. view on XIB is class GSMMapView
        self.map1.camera = camera;

        // Option 2. add a map as a subview
        let map2 = GMSMapView.mapWithFrame(CGRectMake(0, 64, 320, 460), camera:camera)
        self.view.addSubview(map2)

        // Option 3. add a map to a subview of UIView class that is already on the XIB
        let map3 = GMSMapView.mapWithFrame(self.plainViewOnXIBHoldsMap3.bounds, camera:camera)
        self.plainViewOnXIBHoldsMap3.addSubview(map3)
    }
}

希望这个笔记能帮助别人:)

Answer 3

我的建议:

1. 将故事板中的UIView链接到头文件作为UIView实例变量,而不是GMSMapView
2. 更改mapWithFrame:camera:方法设置为链接的UIView的边界
3. 在viewDidLoad:方法的末尾,将UIView实例变量设置为GMSMapView,或添加子视图.我也遇到过这方面的麻烦,而且通常这样做也会有用.

.H

@interface MapViewController: UIViewController <CLLocationManagerDelegate>
{
    IBOutlet UIView *mapViewOnSreen;
}

.M

- (void)viewDidLoad
{
    [super viewDidLoad];

    // Do any additional setup after loading the view.
    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.8683
                                                                longitude:151.2086
                                                                     zoom:10];
    _mapView = [GMSMapView mapWithFrame:mapViewOnScreen.bounds camera:camera];
    _mapView.myLocationEnabled = YES;

    mapViewOnScreen = _mapView
    //OR [self.view addSubview:_mapView];
    //OR [mapViewOnScreen addSubview:_mapView];   <--This worked for me
}

*编辑:我使用IB在主视图中创建了一个小的UIView.我按照列出的步骤,当我设置[mapViewOnScreen addSubview:_mapView]时,我能够在小UIView中查看地图;

Answer 4

你可以通过IB做到这一点

.h
@property (weak, nonatomic) IBOutlet GMSMapView *theMapView;

.m
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.868
                                                        longitude:151.2086
                                                             zoom:12];

//This next line is not needed if you have a GMSMapView outlet
//self.theMapView = [GMSMapView mapWithFrame:self.theMapView.frame camera:camera];
self.theMapView.camera=camera;
self.theMapView.mapType = kGMSTypeSatellite;
self.theMapView.delegate=self;

Answer 5

我只是因为忘了添加这条线而得到黑屏:

[super loadView];

Answer 6

我花了大约半个小时试图让它工作,然后我发现我用错误的方法.谷歌入门示例告诉您将其放入 - (void)loadView但如果您这样做,则会出现黑屏或全屏地图.你需要把它放在 - (void)viewDidLoad中.然后它工作.

Answer 7

对于Swift 3,如果你是子类的话 GMSMapView

1. 加入UIView到UIViewController在故事板

2. 改为GMSMapView改为上课UiView

3. 在UIViewController课堂上创建参考

   @IBOutlet weak var mapView: GMSMapView!
   

4. 在进行子类化时,您不需要使用GMSMapView.map(withFrame: CGRect.zero, camera: camera)文档中提到的内容.只需加载地图如下

       let camera = GMSCameraPosition.camera(withLatitude: 51.50, longitude: -0.076, zoom: 10.0)
       mapView.camera = camera
   

5. 为了添加标记

   let marker = GMSMarker()
   marker.position = CLLocationCoordinate2D(latitude: 51.50, longitude: -0.076)
   marker.title = "London"
   marker.snippet = "UK"
   marker.map = mapView
   

6. 一起作为一个功能

   override func viewDidLoad() {
   super.viewDidLoad()
   
     load()
   }
   
   func load() {
     //map
     let camera = GMSCameraPosition.camera(withLatitude: 51.50, longitude: -0.076, zoom: 10.0)
     mapView.camera = camera
   
     //marker
     let marker = GMSMarker()
     marker.position = CLLocationCoordinate2D(latitude: 51.50, longitude: -0.076)
     marker.title = "London"
     marker.snippet = "UK"
     marker.map = mapView
   }