Question

我在我的应用程序中使用最新的GoogleMaps iOS SDK，在最新的iOS更新7.0.3之后，它在第一次触摸后开始变得无法响应。让我对此进行扩展。在地图上第一次触摸后，地图变得无法响应。首先，您可以捏缩放，拖动，滑动等所有内容，但在第一次触摸后，它不再有效。这是在Apple更新iOS之后开始发生的。如果我使用iOS6模拟器，我甚至可以在第一次触摸后完成所有手势。我不知道这是因为iOS更新还是我的代码有问题。如果有人有任何建议或经历过这样的事情可以指导我，那可能会非常感激。提前谢谢。

点击此处的网站说明：（https://developers.google.com/maps/documentation/ios/start#adding_the_google_maps_sdk_for_ios_to_your_project）

它可以在iOS6上运行，之前在iOS7上工作。 MapsViewController.m

#import "MapsViewController.h"
#import <GoogleMaps/GoogleMaps.h>
@interface MapsViewController ()
@end
@implementation MapsViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.storeNamesArray        = [[NSMutableArray alloc] init];
    self.storePricesArray       = [[NSMutableArray alloc] init];
    self.storeLatitudeArray     = [[NSMutableArray alloc] init];
    self.storeLongitudeArray    = [[NSMutableArray alloc] init];
    self.priceTypeArray         = [[NSMutableArray alloc] init];

    dispatch_async(dispatch_get_main_queue(), ^{ NSData *data = 
    [NSData dataWithContentsOfURL:[NSURL URLWithString:
    [NSString stringWithFormat: @"http://www.someurl.com/mobile-api"]]]; 
    [self performSelectorOnMainThread:@selector(fetchData:) withObject:data
    waitUntilDone:YES]; });
}

-(void)fetchData:(NSData *)responseData
{
    if (responseData)
    {
        NSError *error;
        NSDictionary *json = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:&error];
        NSDictionary *stores =[json objectForKey:@"stores"];
        for(NSDictionary *location in stores)
        {
            [self.storeNamesArray addObject:[location objectForKey:@"name"]];
            [self.storePricesArray addObject:[location objectForKey:@"price"]];
            [self.storeLatitudeArray addObject:[location objectForKey:@"latitude"]];
            [self.storeLongitudeArray addObject:[location objectForKey:@"longitude"]];
            [self.priceTypeArray addObject:[location objectForKey:@"price_type"]];
        }
    }
    double lat = 0.0;
    double lon = 0.0;
    GMSCameraPosition *camera;
    if(self.currentLocationArray.count !=0)
    {
        lat = [self.currentLocationArray[0] doubleValue];
        lon = [self.currentLocationArray[1] doubleValue];
        camera = [GMSCameraPosition cameraWithLatitude:lat longitude:lon zoom:12];
    }
    else
    {
        lat = [self.storeLatitudeArray[0] doubleValue];
        lon = [self.storeLongitudeArray[0] doubleValue];
        camera = [GMSCameraPosition cameraWithLatitude:lat longitude:lon zoom:9];
    }
    GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
    for(int i=0; i<self.storeNamesArray.count; i++)
    {
        GMSMarker *marker = [[GMSMarker alloc] init];
        marker.title = self.storeNamesArray[i];
        marker.snippet = [NSString stringWithFormat:@"%@ $%@", self.priceTypeArray[i], self.storePricesArray[i]];
        marker.position = CLLocationCoordinate2DMake([self.storeLatitudeArray[i] doubleValue], [self.storeLongitudeArray[i] doubleValue]);
        marker.map = mapView;
    }
    if(self.currentLocationArray.count !=0)
    {
        GMSMarker *currentMarker = [[GMSMarker alloc] init];
        currentMarker.title = @"Current Location";
        currentMarker.snippet = @"You are here";
        currentMarker.position = CLLocationCoordinate2DMake(lat, lon);
        currentMarker.map = mapView;
        currentMarker.icon = [UIImage imageNamed:@"temp_userLocation"];
        mapView.selectedMarker = currentMarker;
    }
    CGRect newFrame = self.view.bounds;
    newFrame.size.height = frame.size.height / 2;
    mapView.frame = newFrame;
    mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleBottomMargin;
    mapView.delegate = self;
    [self.view addSubview:mapView];
}

Answer 1

我已经在Google Maps SDK for iOS bug上发布了我修改过的Chris代码版本。

该解决方案涉及对Chris代码的两处更改：

将Google地图实例化迁移到viewDidLoad，
将网络流量从主（UI）线程推送到后台线程。

Answer 2

我不知道这是不是这里的情况，但我有同样的问题，URLWithString函数只出现在iOS 7.0.3上，我假设Apple已经更改了这个函数可以使用的字符，所以如果它返回nil这是你的解决方案。

我所做的是在使用URLWithString：

之前使用此函数创建字符串

-(NSString *) URLEncodeString:(NSString *) str // New to fix 7.0.3 issue //
{

    NSMutableString *tempStr = [NSMutableString stringWithString:str];
    [tempStr replaceOccurrencesOfString:@" " withString:@"+" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [tempStr length])];


    return [[NSString stringWithFormat:@"%@",tempStr] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
}

在您的情况下，只需将行更改为此行：

dispatch_async(dispatch_get_main_queue(), ^{ NSData *data = 
[NSData dataWithContentsOfURL:[NSURL URLWithString:[self URLEncodeString: [NSString stringWithFormat: @"http://www.someurl.com/mobile-api"]]]]; 
[self performSelectorOnMainThread:@selector(fetchData:) withObject:data
waitUntilDone:YES]; });

希望这对你也有帮助。

Answer 3

在viewDidLoad方法中插入此代码

- （无效）viewDidLoad中 {

[super viewDidLoad];

// iOS7 
if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
    self.navigationController.interactivePopGestureRecognizer.enabled = NO;
}

.... your codes

}

GoogleMaps iOS SDK版本1.5无响应

3 个答案: