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我正在制作一个使用 GMSMapView 的 iPhone 应用程序，并且我希望能够在地图顶部添加一个工具栏。这是我的代码：

#import "MapViewController.h"
#import <GoogleMaps/GoogleMaps.h>

@interface MapViewController ()

@end

@implementation MapViewController
{
GMSMapView *mapView_;
id<GMSMarker> myMarker;
}

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
    // Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}

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

- (IBAction)back:(id)sender
{
[self dismissViewControllerAnimated:YES completion:NULL];
}

// You don't need to modify the default initWithNibName:bundle: method.

- (void)loadView
{
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:30.616083 longitude:-96.338908 zoom:13];

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

GMSMarkerOptions *options = [[GMSMarkerOptions alloc] init];
options.position = CLLocationCoordinate2DMake(30.616083, -96.338908);
options.title = @"College Station";
options.snippet = @"Texas";
[mapView_ addMarkerWithOptions:options];
}

#pragma mark - GMSMapViewDelegate
- (void)mapView:(GMSMapView *)mapView
didTapAtCoordinate:(CLLocationCoordinate2D)coordinate
{
[myMarker remove];

NSLog(@"You tapped at %f,%f", coordinate.latitude, coordinate.longitude);
GMSMarkerOptions *marker = [[GMSMarkerOptions alloc] init];
marker.position = CLLocationCoordinate2DMake(coordinate.latitude, coordinate.longitude);
marker.title = @"Tap Event";
// (icon for marker) marker.icon = [UIImage imageNamed:@"house"];
myMarker = [mapView_ addMarkerWithOptions:marker];
}

@end

在我的故事板中，我有一个工具栏，但我不知道如何让它显示在 GMSMapView 上。我是 iOS 新手，已经在网上搜索过解决方案，但 GMSMapView 没有任何运气。

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1 回答 1

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因为您将视图设置为 mapView_，所以在 StoryBoard 中创建的视图将被覆盖。我使用以下代码添加了一个带有分段控件和按钮的工具栏：

CGRect screenBounds = [[UIScreen mainScreen] bounds];

UINavigationBar  *navBar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, screenBounds.size.width, 44)];
UINavigationItem *navItems = [[UINavigationItem alloc]init];
UIBarButtonItem *barButtonRight = [[UIBarButtonItem alloc]initWithTitle:@"" style:UIBarButtonItemStylePlain target:self action:@selector(SettingsButtonPressed)];
UISegmentedControll *segControl = [[UISegmentedControl alloc]initWithItems:[NSArray arrayWithObjects:@"Opt1",@"Opt2",@"Opt3", nil]];
UIImage *imageSettings= [UIImage imageNamed:@"36-toolbox.png"];

[segControl setSegmentedControlStyle:UISegmentedControlStyleBar];
[segControl setSelectedSegmentIndex:0];
[segControl setFrame:CGRectMake(10, 5, 150, 32)];
[segControl addTarget:self action:@selector(KiesVC:) forControlEvents:UIControlEventValueChanged];

[barButtonRight setImage:imageSettings];

[navItems setRightBarButtonItem:barButtonRight];
[navItems setTitleView:segControl];

[navBar setItems:[NSArray arrayWithObject:navItems] animated:NO];

然后通过调用添加工具栏：

[self.view addSubview:navBar];

希望能帮助到你

于 2013-04-25T08:28:48.880 回答