如何检查用户是否授予使用相机的权限? [英] How to check if the user gave permission to use the camera?

问题描述

尝试写这个:

if usergavepermissiontousercamera  
  opencamera
else 
  showmycustompermissionview

找不到执行此简单任务的当前方法.
注意:即使需要其他方法，iOS7也应该可以使用

Couldn't find a current way to do this simple task.
Note: Should also work iOS7 even if it requires a different method

推荐答案

您可以使用以下代码执行相同的操作:

You can use the following code for doing the same:

if AVCaptureDevice.authorizationStatusForMediaType(AVMediaTypeVideo) ==  AVAuthorizationStatus.Authorized {
    // Already Authorized
} else {
    AVCaptureDevice.requestAccessForMediaType(AVMediaTypeVideo, completionHandler: { (granted: Bool) -> Void in
       if granted == true {
           // User granted
       } else {
           // User rejected
       }
   })
}

注意:

1. 确保在构建阶段的链接二进制"部分中添加AVFoundation框架
2. 您应该在课堂上写import AVFoundation以便导入AVFoundation

1. Make sure that you add the AVFoundation Framework in the Link Binary section of build phases
2. You should write import AVFoundation on your class for importing AVFoundation

SWIFT 3

if AVCaptureDevice.authorizationStatus(forMediaType: AVMediaTypeVideo) ==  AVAuthorizationStatus.authorized {
   // Already Authorized
} else {
   AVCaptureDevice.requestAccess(forMediaType: AVMediaTypeVideo, completionHandler: { (granted: Bool) -> Void in
      if granted == true {
         // User granted
      } else {
         // User Rejected
      }
   })
}

雨燕4

if AVCaptureDevice.authorizationStatus(for: .video) ==  .authorized {
    //already authorized
} else {
    AVCaptureDevice.requestAccess(for: .video, completionHandler: { (granted: Bool) in
        if granted {
            //access allowed
        } else {
            //access denied
        }
    })
}

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