Ios 如何判断用户是否允许使用相机

发布于12月25日

试着写下这句话:

if usergavepermissiontousercamera  
  opencamera
else 
  showmycustompermissionview

找不到执行此简单任务的当前方法

推荐答案

您可以使用以下代码执行相同的操作:

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
       }
   })
}

NOTE:个

确保在构建阶段的链接二进制部分添加AVFoundation Framework
对于导入AVFoundation，您应该在您的班级上写import AVFoundation

SWIFT 3个

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
      }
   })
}

Swift 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
        }
    })
}