Question

2015-07-13 23：56：13.659 ICBuses [41867：12770881] - [__ NSArrayI intValue]：无法识别的选择器发送到实例0x7fddc8e00e30 2015-07-13 23：56：13.670 ICBuses [41867：12770881] *由于未捕获的异常终止应用程序＆＃39; NSInvalidArgumentException＆＃39;，原因：＆＃39; - [__ NSArrayI intValue]：无法识别的选择器已发送例如0x7fddc8e00e30＆＃39; * 首先抛出调用堆栈：

他将数据解析为一个类，然后从那里我使用数据将公交车的GPS位置放在我的地图上。我不相信我在数组上调用intvalue。我将数据分成NSStrings然后实例化我的busGPS类。然后在类I的实例上，在类的属性上调用intValue。请帮助，谢谢。他是巴士位置的数据:( { heading =＆＃34; -4＆＃34 ;; id = 110; lat =＆＃34; 41.66044＆＃34 ;; lng =＆＃34; -91.53468＆＃34 ;; }

我需要int形式的lat和lng与google map api一起使用。这是我的代码。这是我的模型对象部首：

@interface BusLocation : NSObject

@property (strong, nonatomic) NSString *lat;
@property (strong, nonatomic) NSString *lng;
@property (weak, nonatomic) NSString *heading;

- (instancetype) initWithLat:(NSString *)lat lng:(NSString *)lng heading:(NSString *)heading;

@end

界面：

#import "BusLocation.h"

@implementation BusLocation

- (instancetype) initWithLat:(NSString *)lat lng:(NSString *)lng heading:(NSString *)heading {

    self = [super init];

    if (self) {
        _lat = lat;
        _lng = lng;
        _heading = heading;

    }
    return self;
}

@end

他是我的mapView的标题

#import <UIKit/UIKit.h>
#import "MapViewController.h"
#import "API.h"
@class BusLocation;

@interface MapViewController : UIViewController

@property (strong, nonatomic) NSString *routeAgency;
@property (strong, nonatomic) NSString *route;
@property (strong, nonatomic) NSArray *busLocation;
@property (strong, nonatomic) NSArray *routeInfo;
@property (strong, nonatomic) NSString *testLat;
@property int testLatInt;
@property int testLngInt;
@property (strong, nonatomic) NSString *testLng;
@property (strong, nonatomic) BusLocation *busGPS;
@end

继承实施文件

#import "MapViewController.h"
@import GoogleMaps;
#import "BusLocation.h"

@interface MapViewController ()

@end

@implementation MapViewController {

    GMSMapView *busRouteMapview_;
}

- (void)viewDidLoad {
    [super viewDidLoad];

    NSLog(@"Name: %@, Agency: %@", self.route, self.routeAgency);

    self.routeInfo = [[API sharedAPI] routeInfoAgency:self.routeAgency
                                                Route:self.route];

    self.busLocation = [[API sharedAPI] busLocation:self.routeAgency
                                              Route:self.route];
    NSLog(@"Bus Location: %@", self.busLocation);
    //Setup class to use with Google Map

    NSString *testlat = [self.busLocation valueForKey:@"lat"];
    NSString *testlng = [self.busLocation valueForKey:@"lng"];
    NSString *testheading = [self.busLocation valueForKey:@"heading"];

    self.busGPS = [[BusLocation alloc] initWithLat:testlat lng:testlng heading:testheading];

    int testing = [self.busGPS.lat intValue];



    // Create a GMSCameraPosition that tells the map to display the
    // cooridante
    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:41.4444
                                                            longitude:-91
                                                                 zoom:12];

    busRouteMapview_ = [GMSMapView mapWithFrame:CGRectZero camera:camera];
    busRouteMapview_.myLocationEnabled = YES;
    self.view = busRouteMapview_;









    // Do any additional setup after loading the view from its nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end

获取 - [__ NSArrayI integerValue]异常

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