ios - 不允许 Xcode 位置访问

Question

我使用 Xcode 8.2.1 和 Swift 3，在我的应用程序中有一个 map View ，用户应该能够按下按钮， map 就会放大他们的位置。

在 Info.plist 中，我添加了两行:值为“asdf”的 NSLocationAlwaysUsageDescription 和值为“fdas”的隐私 - 使用时位置使用说明。

在运行应用程序之前，我选择“模拟位置”并选择预设位置。但是，每当用户按下该按钮时， map 就会缩放到海洋中的某个随机位置，并将以下消息打印到控制台:

The app's Info.plist must contain an NSLocationAlwaysUsageDescription key with a string value explaining to the user how the app uses this data

这是我的整个 info.plist 源代码:

`<?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>$(EXECUTABLE_NAME)</string>
    <key>CFBundleIdentifier</key>
    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>$(PRODUCT_NAME)</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0</string>
    <key>CFBundleVersion</key>
    <string>1</string>
    <key>LSRequiresIPhoneOS</key>
    <true/>
    <key>UILaunchStoryboardName</key>
    <string>LaunchScreen</string>
    <key>UIMainStoryboardFile</key>
    <string>Main</string>
    <key>UIRequiredDeviceCapabilities</key>
    <array>
        <string>armv7</string>
    </array>
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>Need your location </key>
    <string>asdf</string>
    <key>Need your location</key>
    <string>fdas</string>
</dict>
</plist>`

这也是函数:

> func zoomOnLocation(sender: UIBarButtonItem) {
        print("zoomOnLocation running")
        /* Tracks user location */
        var locationManager = CLLocationManager()
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        mapView.showsUserLocation = true
        if (CLLocationManager.locationServicesEnabled()) { //Check for Location Services
            locationManager = CLLocationManager()
            locationManager.desiredAccuracy = kCLLocationAccuracyBest
            locationManager.requestAlwaysAuthorization()
            locationManager.requestWhenInUseAuthorization()
            locationManager.startUpdatingLocation()
        }

        //Zoom to user location
        let noLocation = CLLocationCoordinate2D()
        let viewRegion = MKCoordinateRegionMakeWithDistance(noLocation, 200, 200)
        mapView.setRegion(viewRegion, animated: false)

        DispatchQueue.main.async {
            locationManager.startUpdatingLocation()
        }

    }

非常感谢任何帮助!

Answer 1

听起来您在 info.plist 中混用了语法。您说您添加的其中一个条目被写为属性列表属性，另一个被写为源。当我在使用位置服务的应用程序中右键单击 info.plist，然后选择“打开方式...”，然后选择“源代码”时，我会看到以下内容:

<key>NSLocationWhenInUseUsageDescription</key>
<string>Need your location for this app!</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>This app needs your location</string>

当查看源代码时，确保您的 info.plist 包含与这些类似的条目应该可以解决您的问题。

属性列表中的等效条目将是隐私 - 使用时的位置描述和隐私 - 始终使用位置描述。