Question

我正在尝试在iOS应用中使用用户位置。该应用程序适用于iOS 7，但不适用于iOS 8。

我尝试了一切。阅读一堆教程，我知道在iOS 8中我们需要调用requestWhenInUseAuthorization方法并将NSLocationWhenInUseUsageDescription键添加到Info.plist中。

但它仍然无法正常工作，它没有得到用户的许可，我正在使用真实设备（运行iOS 8.1.x的iPhone 5c）进行测试。我尝试多次重新安装该应用程序。

这是我为测试这件事而创建的非常小的项目的代码。

我的ViewController.m

#import "ViewController.h"

#import <CoreLocation/CoreLocation.h>

@interface ViewController () <CLLocationManagerDelegate>

@property (strong, nonatomic) CLLocationManager *locationManager;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.locationManager = [[CLLocationManager alloc] init];
    self.locationManager.delegate = self;

    self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    self.locationManager.distanceFilter = kCLHeadingFilterNone;

    if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
        NSLog(@"Pôde chamar o método"); // It could call the method
        [self.locationManager requestWhenInUseAuthorization];
    }

//    [self.locationManager startUpdatingLocation];

}

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

#pragma mark - CLLocationManagerDelegate

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
    NSLog(@"Atualizou Localização para: %@", [locations lastObject]); // Updated the location to
}

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
    NSLog(@"Location Manager falhou com erro: %@", error); // Location manager failed with error
}

- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status {
    if (status == kCLAuthorizationStatusAuthorized) {
        [self.locationManager startUpdatingLocation];
    }
}

@end

我的信息列表

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleDevelopmentRegion</key>
    <string>en</string>
    <key>CFBundleExecutable</key>
    <string>$(EXECUTABLE_NAME)</string>
    <key>CFBundleIdentifier</key>
    <string>wallace.$(PRODUCT_NAME:rfc1034identifier)</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>$(PRODUCT_NAME)</string>
    <key>CFBundlePackageType</key>
    <string>BNDL</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0</string>
    <key>CFBundleSignature</key>
    <string>????</string>
    <key>CFBundleVersion</key>
    <string>1</string>

    <key>NSLocationWhenInUseUsageDescription</key>
    <string></string>


</dict>
</plist>

有人知道如何解决这个问题吗？

Answer 1

将NSLocationAlwaysUsageDescription和NSLocationWhenInUseUsageDescription添加到Info.plist。然后，您可以为每个值提供AlertView文本。

位置管理员将查看这些字段中的文本以在AlertView中提示。

Answer 2

将以下内容添加到locationManager:didChangeAuthorizationStatus：

if (status == kCLAuthorizationStatusNotDetermined) {
    [manager requestAlwaysAuthorization];
}

Answer 3

我不知道为什么，但出于某些原因，将NSLocationWhenInUseUsageDescription添加到info.plist并调用requestWhenInUseAuthorization对我来说不起作用，经过几次尝试后我找到了以下解决方案。有线但为我工作。

首先在NSLocationWhenInUseUsageDescription中添加NSLocationAlwaysUsageDescription和info.plist个密钥，然后调用方法requestAlwaysAuthorization和requestWhenInUseAuthorization。现在您应该收到通知。收到通知后，您可以删除不必要的代码和info.plist项目。

经过多次试验后，它仍然有效，希望它能为少数人提供帮助。

iOS 8.1核心LocationManager请求当InUseAuthorization未提示UIAlertView时

3 个答案: