如何在iOS谷歌地图中显示信息窗口而无需点击标记？

Question

我是iOS开发的新手.这是关于Google Maps iOS SDK中的标记信息窗口.

据我所知,我们可以使用GMSMarkerOption创建一个带信息窗口的标记.

GMSMarkerOption *myLocationOption = [GMSMarkerOption alloc];
myLocationOption .title = @"My Location";
myLocationOption .snippet = @"Lat:...., Lang:....";

[mapView addMarkerOption:myLocationOption];

根据上面的代码,Marker按预期显示在Map View中.点击标记会在Google地图中显示"我的位置"信息窗口,这很好.

无论如何我们可以在用户进入自定义地图屏幕时以编程方式显示信息窗口吗？

Answer 1

这在Google Maps SDK上发生了变化,因此更容易理解:

GMSMarker *marker = [[GMSMarker alloc] init];
marker.position = coordinate;
marker.title = @"Location selected";
marker.snippet = @"Testing";
marker.map = mapView_;

//Show info window on map
[mapView_ setSelectedMarker:marker];

您现在使用setSelectedMarker方法显示标记的信息窗口

Answer 2

GMSMarkerOptions *myLocationOptions = [GMSMarkerOptions options];
myLocationOptions.title = @"My Location";
myLocationOptions.snippet = @"Lat:...., Lang:....";

mapView.selectedMarker = [mapView addMarkerWithOptions:myLocationOptions];

(注意它是选项,而不是选项)

Answer 3

Swift 3.0

func addMarker(_ location:CLLocation){
        var locationMarker: GMSMarker!
        if locationMarker != nil {
            locationMarker.map = nil
        }
        locationMarker = GMSMarker(position: location.coordinate)
        locationMarker.map = mapView
        locationMarker.appearAnimation = kGMSMarkerAnimationPop
        locationMarker.icon = GMSMarker.markerImage(with: UIColor.green)
        locationMarker.opacity = 0.85
        locationMarker.isFlat = true
        locationMarker.snippet = "My Location"
        mapView.selectedMarker=locationMarker

    }

以下是答案

mapView.selectedMarker=locationMarker