创建自定义指导
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
本页介绍了您在创建自定义指导时需要遵循的简要步骤,这是自定义导航体验的一部分。
此流程与规划路线中所述的流程不同,具体如下:
- 您首先独立建立导航会话,并通过该会话获取导航器实例,而不是通过调用视图控制器来获取。
- 您可以设置一个事件监听器来响应和管理导航事件。
- 使用
GMSNavigationService.createNavigationSession
创建导航会话,并通过 setDestination
调用开始导航。Google 导航体验通过导航地图视图调用导航器,而 GMSNavigationServices
从导航会话独立于界面实例控制并接收事件流。这意味着,它可以不使用界面运行,也可以传递给任何基于界面的体验。采用这种方法,导航会话会在应用中持续运行,直到从应用中移除最后一个引用。
- 建立贴合道路的位置信息提供程序。如果您希望应用能够持续监控位置信息,例如在沿路线显示带有蓝点的导航视图时,请使用位置信息提供程序。
- 通过实现
GMSNavigatorListener
协议,为详细的逐向导航设置监听器。然后,将该信息转换为自定义导航体验所需的任何内容。例如:- 实现纯文本字段,以便简单地投屏路线。
- 设计并填充您自己的界面字段。
- 设置导航模拟器。这是开发和测试所必需的。
创建独立的导航会话
以下代码段来自演示,展示了独立于视图控制器的导航。然后,该代码会添加一个概览地图,该地图配置为显示当前贴合道路的位置。
// Create the navigation session.
_navigationSession = [GMSNavigationServices createNavigationSession];
GMSRoadSnappedLocationProvider *roadSnappedLocationProvider =
_navigationSession.roadSnappedLocationProvider;
[roadSnappedLocationProvider startUpdatingLocation];
GMSNavigator *navigator = _navigationSession.navigator;
[navigator addListener:self];
navigator.voiceGuidance = GMSNavigationVoiceGuidanceSilent;
navigator.sendsBackgroundNotifications = NO;
_navigationSession.started = YES;
[navigator setDestinations:@[ destination ]
callback:^(GMSRouteStatus routeStatus) {
// …handle changes in route status.
}];
// Add an overview map.
_mapView = [[GMSMapView alloc] initWithFrame:CGRectZero];
[self.mainStackView addArrangedSubview:_mapView];
[self.mainStackView setNeedsLayout];
_mapView.settings.compassButton = YES;
_mapView.delegate = self;
_mapView.myLocationEnabled = YES;
_mapView.roadSnappedMyLocationSource = roadSnappedLocationProvider;
将导航从自定义体验传递到 Google 体验
此代码段展示了如何让用户从自定义导航体验进入 Google 导航体验。此代码段还展示了应用在共享地图时如何进行此转换。
`UIButton *button = [UIButton buttonWithType:UIButtonTypePlain`];
[`button addTarget:self action:@selector(didTapEnterGoogleNavigationButton:)
forControlState:[_directionsButton addTarget:self`];
`…`
[`_mapView enableNavigationWithSession:_navigationSession`];
如未另行说明,那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可,并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情,请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC):2025-08-31。
[null,null,["最后更新时间 (UTC):2025-08-31。"],[[["\u003cp\u003eCreate custom turn-by-turn navigation experiences on iOS by establishing an independent navigation session using \u003ccode\u003eGMSNavigationServices\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eImplement the \u003ccode\u003eGMSNavigatorListener\u003c/code\u003e protocol to receive and utilize detailed guidance information for your custom UI elements.\u003c/p\u003e\n"],["\u003cp\u003eUtilize a road-snapped location provider for continuous location updates and accurate positioning on the route.\u003c/p\u003e\n"],["\u003cp\u003eSet up a navigation simulator for development and testing purposes to ensure the functionality of your custom navigation experience.\u003c/p\u003e\n"],["\u003cp\u003eTransition seamlessly from a custom navigation experience to the full Google Maps navigation experience, optionally sharing the existing map instance.\u003c/p\u003e\n"]]],["The core process involves creating a navigation session independently using `GMSNavigationService.createNavigationSession`, distinct from route navigation. A road-snapped location provider is established for continuous monitoring. Implement `GMSNavigatorListener` to set up turn-by-turn guidance, translating the information into your app's custom navigation UI. Set up a navigation simulator for testing. The navigation session persists until the last reference is removed. A custom experience can also be transition to the default google navigation experience.\n"],null,["# Create customized guidance\n\nThis page covers the high-level steps you follow to create customized guidance\nas part of a [custom navigation\nexperience](/maps/documentation/navigation/ios-sdk/intro-custom-nav). \n**This process differs from the process described in\n[Navigate a\nroute](/maps/documentation/navigation/ios-sdk/route) as follows:**\n\n- You first establish a navigation session independently and obtain a navigator instance through the session rather than by calling the view controller.\n- You set up an event listener to respond to and manage navigation events.\n\n1. **Create a navigation session** using [`GMSNavigationService.createNavigationSession`](/maps/documentation/navigation/ios-sdk/reference/objc/Classes/GMSNavigationServices#+createnavigationsession) and begin navigation with a `setDestination` call. Where the Google navigation experience invokes the navigator through the navigation map view, the `GMSNavigationServices` controls and receives a stream of events from a navigation session *independently* from a UI instance. This means it can either run without a UI, or get passed to *any* UI-based experience. With this approach, the navigation session continues to run in your app until the last reference is removed from it.\n2. **Establish a road-snapped location provider**. Use the location provider if you want your app to have continuous location monitoring, such as when displaying a navigation view with a blue dot along the route.\n3. **Set up a listener for detailed turn-by-turn guidance** by implementing the `GMSNavigatorListener` protocol. Then, transform that information into whatever is needed for your custom navigation experience. For example:\n 1. Implement text-only fields for simple screen casting of directions.\n 2. Design and populate fields for your own UI.\n4. **Set up a navigation simulator**. This is necessary for development and testing.\n\nCreate an independent navigation session\n----------------------------------------\n\nThe following code snippet from the demo shows navigation established\nindependently from the view controller. The code then adds an overview map\nconfigured to show the current road-snapped location. \n\n // Create the navigation session.\n\n _navigationSession = [GMSNavigationServices createNavigationSession];\n GMSRoadSnappedLocationProvider *roadSnappedLocationProvider =\n _navigationSession.roadSnappedLocationProvider;\n [roadSnappedLocationProvider startUpdatingLocation];\n GMSNavigator *navigator = _navigationSession.navigator;\n [navigator addListener:self];\n navigator.voiceGuidance = GMSNavigationVoiceGuidanceSilent;\n navigator.sendsBackgroundNotifications = NO;\n _navigationSession.started = YES;\n [navigator setDestinations:@[ destination ]\n callback:^(GMSRouteStatus routeStatus) {\n // ...handle changes in route status.\n }];\n\n // Add an overview map.\n _mapView = [[GMSMapView alloc] initWithFrame:CGRectZero];\n [self.mainStackView addArrangedSubview:_mapView];\n [self.mainStackView setNeedsLayout];\n _mapView.settings.compassButton = YES;\n _mapView.delegate = self;\n _mapView.myLocationEnabled = YES;\n _mapView.roadSnappedMyLocationSource = roadSnappedLocationProvider;\n\nPassing navigation from a custom experience to the Google experience\n--------------------------------------------------------------------\n\nThis code snippet illustrates how your app can allow the user to enter the\nGoogle navigation experience from a custom navigation experience. This code\nsnippet also shows how your app makes this transition while sharing the map. \n\n `UIButton *button = [UIButton buttonWithType:UIButtonTypePlain`];\n\n [`button addTarget:self action:@selector(didTapEnterGoogleNavigationButton:)\n forControlState:[_directionsButton addTarget:self`];\n\n `...`\n\n [`_mapView enableNavigationWithSession:_navigationSession`];"]]