iOS 应用内打开三方地图app直接导航

当然因为有需求喽。

疯狂试探
- (BOOL)canOpenURL:(NSURL *)url NS_AVAILABLE_IOS(3_0);

常用地图应用的url Scheme：

//百度地图  
baidumap 
//高德地图  
iosamap 
//谷歌地图 
comgooglemaps  
//腾讯地图
qqmap   
//其他地图省略  
….

苹果地图不需要，iOS API提供了一个跳转打开方法。
注意IOS9之后，plist里面设置url scheme白名单

<key>LSApplicationQueriesSchemes</key>
    <array>
        <string>qqmap</string>
        <string>comgooglemaps</string>
        <string>iosamap</string>
        <string>baidumap</string>
    </array>

在下用的是高德坐标
高德转坐标类型枚举

//        AMapCoordinateTypeBaidu = 0,    ///<Baidu
//        AMapCoordinateTypeMapBar,       ///<MapBar
//        AMapCoordinateTypeMapABC,       ///<MapABC
//        AMapCoordinateTypeSoSoMap,      ///<SoSoMap
//        AMapCoordinateTypeAliYun,       ///<AliYun
//        AMapCoordinateTypeGoogle,       ///<Google
//        AMapCoordinateTypeGPS,          ///<GPS

在下试过转百度用AMapCoordinateTypeBaidu，这样一一对应的方式转，但跳转之后误差很大，后来我试着杂交匹配一下，所有地图使用Google转法最准，所以除高德地图都用了Google转出的坐标

重点来了！！！！

- (void)pushMapLan:(CGFloat)lan Lon:(CGFloat)lon pointName:(NSString *)title {

    UIAlertController *alertSheet = [UIAlertController alertControllerWithTitle:title message:@"请选择以下驾车导航方式" preferredStyle:UIAlertControllerStyleActionSheet];

//        高德坐标转换百度坐标
    CLLocationCoordinate2D gps = AMapCoordinateConvert(CLLocationCoordinate2DMake(lan,lon), AMapCoordinateTypeGoogle);
//        --------------------------------------------------

    if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"baidumap://"]]) {
        NSMutableDictionary *baiduMapDic = [NSMutableDictionary dictionary];
        baiduMapDic[@"title"] = @"百度地图";
        NSString *urlString = [[NSString stringWithFormat:@"baidumap://map/direction?origin={{我的位置}}&destination=latlng:%f,%f|name=北京&mode=driving&coord_type=gcj02",gps.latitude,gps.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
        baiduMapDic[@"url"] = urlString;
        [alertSheet addAction:[UIAlertAction actionWithTitle:baiduMapDic[@"title"] style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:baiduMapDic[@"url"]]];
        }]];
    }

    //高德地图
    if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"iosamap://"]]) {
        NSMutableDictionary *gaodeMapDic = [NSMutableDictionary dictionary];
        gaodeMapDic[@"title"] = @"高德地图";
        NSString *urlString = [[NSString stringWithFormat:@"iosamap://navi?sourceApplication=%@&backScheme=%@&lat=%f&lon=%f&dev=0&style=2",@"导航功能",@"poapoaaldoerccbadersvsruhdk",lan,lon] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
        gaodeMapDic[@"url"] = urlString;
        [alertSheet addAction:[UIAlertAction actionWithTitle:gaodeMapDic[@"title"] style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:gaodeMapDic[@"url"]]];
        }]];
    }

    //谷歌地图
    if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"comgooglemaps://"]]) {
        NSMutableDictionary *googleMapDic = [NSMutableDictionary dictionary];
        googleMapDic[@"title"] = @"谷歌地图";
        NSString *urlString = [[NSString stringWithFormat:@"comgooglemaps://?x-source=%@&x-success=%@&saddr=&daddr=%f,%f&directionsmode=driving",@"驾车导航",@"poapoaaldoerccbadersvsruhdk",gps.latitude,gps.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
        googleMapDic[@"url"] = urlString;
        [alertSheet addAction:[UIAlertAction actionWithTitle:googleMapDic[@"title"] style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:googleMapDic[@"url"]]];
        }]];
    }

    //腾讯地图
    if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"qqmap://"]]) {
        NSMutableDictionary *qqMapDic = [NSMutableDictionary dictionary];

        qqMapDic[@"title"] = @"腾讯地图";
        NSString *urlString = [[NSString stringWithFormat:@"qqmap://map/routeplan?from=我的位置&type=drive&tocoord=%f,%f&to=终点&coord_type=1&policy=0",gps.latitude,gps.longitude] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
        qqMapDic[@"url"] = urlString;
        [alertSheet addAction:[UIAlertAction actionWithTitle:qqMapDic[@"title"] style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:qqMapDic[@"url"]]];
        }]];
    }
    NSMutableDictionary *iosMapDic = [NSMutableDictionary dictionary];
    iosMapDic[@"title"] = @"苹果地图";
    [alertSheet addAction:[UIAlertAction actionWithTitle:iosMapDic[@"title"] style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
        CLLocationCoordinate2D gps = AMapCoordinateConvert(CLLocationCoordinate2DMake(lan,lon), AMapCoordinateTypeGoogle);

        MKMapItem *currentLoc = [MKMapItem mapItemForCurrentLocation];
        MKMapItem *toLocation = [[MKMapItem alloc] initWithPlacemark:[[MKPlacemark alloc] initWithCoordinate:gps addressDictionary:nil]];
        toLocation.name = title;
        NSArray *items = @[currentLoc,toLocation];
        NSDictionary *dic = @{
                              MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving,
                              MKLaunchOptionsMapTypeKey : @(MKMapTypeStandard),
                              MKLaunchOptionsShowsTrafficKey : @(YES)
                              };

        [MKMapItem openMapsWithItems:items launchOptions:dic];
    }]];

    [alertSheet addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
    }]];

    [self presentViewController:alertSheet animated:YES completion:nil];

}

关于转换坐标，如果你用的是高德坐标系，除了高德地图不用转坐标系外，其他的都以高德sdk里转Google的方式转，保证目的地精确。
其他的就自己探索咯！
建议 第三方的转换方法【github】地址，找不到合适的尝试这个。

链接：https://www.jianshu.com/p/8622b6ff83b3