从ios app打开带有路线的苹果地图应用程序 [英] Opens apple maps app from ios app with directions

问题描述

正如标题所述，我想通过按下按钮在我自己的应用程序中打开ios设备中的本机地图应用程序。目前我使用 MKmapview 显示一个简单的引脚，其中lat / long取自 json 文件。

As the title states I would like to open the native maps app in the ios device from within my own app, by pressing a button. currently I have used an MKmapview that displays a simple pin with lat/long taken from a json file.

代码如下：

- (void)viewDidLoad {
    [super viewDidLoad]; 
}


// We are delegate for map view
self.mapView.delegate = self;

// Set title
self.title = self.location.title;

// set texts...
self.placeLabel.text = self.location.place;


self.telephoneLabel.text = self.location.telephone;
self.urlLabel.text = self.location.url;


**// Make a map annotation for a pin from the longitude/latitude points
MapAnnotation *mapPoint = [[MapAnnotation alloc] init];
mapPoint.coordinate = CLLocationCoordinate2DMake([self.location.latitude doubleValue], [self.location.longitude doubleValue]);
mapPoint.title = self.location.title;**

// Add it to the map view
[self.mapView addAnnotation:mapPoint];

// Zoom to a region around the pin
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(mapPoint.coordinate, 500, 500);
[self.mapView setRegion:region];

}`

当你触摸将显示带有标题和信息按钮的信息框。

When you touch the pin an info box appears with a title and an info button.

这是代码：

    #pragma mark - MKMapViewDelegate

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
    MKPinAnnotationView *view = nil;
    static NSString *reuseIdentifier = @"MapAnnotation";

    // Return a MKPinAnnotationView with a simple accessory button
    view = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:reuseIdentifier];
    if(!view) {
        view = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:reuseIdentifier];
        view.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
        view.canShowCallout = YES;
        view.animatesDrop = YES;
    }

    return view;
}

我想创建一个方法，打开地图应用程序，其中包含来自Current的指示用户在上面的mapPoint上的位置，当点击上面信息框中的按钮时。
这可能吗？我也可以自定义这个按钮的外观吗？ （我的意思是喜欢在按钮上放置一个不同的图像，使其看起来像按我指示方向）。

I want to make a method that opens the maps app with directions from the Current users location to the mapPoint above , when clicking the button in the info box above. Is that possible? Also Can I customize the look of this button? (i mean like putting a different image to the button to make it look like "press me for direction kinda" ).

对不起，如果这是一个愚蠢的问题，但这是我的第一个ios应用程序和Obj-c对我来说是一种全新的语言。

Sorry if this a stupid question, but this is my first ios app and Obj-c is a totally new language to me.

感谢所有的回复。

推荐答案

您初始化按钮并向按钮添加操作：

You init a button and add action to button:

Objective-C代码

NSString* directionsURL = [NSString stringWithFormat:@"http://maps.apple.com/?saddr=%f,%f&daddr=%f,%f",self.mapView.userLocation.coordinate.latitude, self.mapView.userLocation.coordinate.longitude, mapPoint.coordinate.latitude, mapPoint.coordinate.longitude];
if ([[UIApplication sharedApplication] respondsToSelector:@selector(openURL:options:completionHandler:)]) {
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString: directionsURL] options:@{} completionHandler:^(BOOL success) {}];
} else {
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString: directionsURL]];
}

，mapPoint是您要前往的地方。

with the mapPoint is where you want to direction to.

Swift2代码

if let url = NSURL(string: directionsURL) {
    UIApplication.sharedApplication().openURL(url)
}

Swift3或更高版本

let directionsURL = "http://maps.apple.com/?saddr=35.6813023,139.7640529&daddr=35.4657901,139.6201192"
guard let url = URL(string: directionsURL) else {
    return
}
if #available(iOS 10.0, *) {
    UIApplication.shared.open(url, options: [:], completionHandler: nil)
} else {
    UIApplication.shared.openURL(url)
}

请注意 saddr ， daddr 可以是位置名称或位置坐标。所以 directionsURL 可以是：

Note that saddr, daddr can be location name or location coordinate. So directionsURL can be:

// directions with location coordinate
"http://maps.apple.com/?saddr=35.6813023,139.7640529&daddr=35.4657901,139.6201192"
// or directions with location name
"http://maps.apple.com/?saddr=Tokyo&daddr=Yokohama"
// or directions from current location to destination location
"http://maps.apple.com/?saddr=Current%%20Location&daddr=Yokohama"

更多选项参数（如传输类型，地图类型......）看看这里

More options parameters (like transport type, map type ...) look at here

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