CameraPermissionIOS.mm

Go to the documentation of this file.

//
//  CameraPermissionIOS.m
//  Scol
//
//  Created by Bastien on 16/06/2016.
//
//
 
#include "CameraPermissionIOS.h"
#import <AVFoundation/AVFoundation.h>
 
 
void CheckCameraPermission()
{
  if ([AVCaptureDevice respondsToSelector:@selector(requestAccessForMediaType: completionHandler:)])
  {
    [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted)
     {
      // Will get here on both iOS 7 & 8 even though camera permissions weren't required
      // until iOS 8. So for iOS 7 permission will always be granted.
      if (granted)
      {
        // Permission has been granted. Use dispatch_async for any UI updating
        // code because this block may be executed in a thread.
        dispatch_sync(dispatch_get_main_queue(), ^{
          NSLog(@">> Camera permission granted");
        });
      }
      else
      {
        NSLog(@">> Camera permission denied");
      }
    }];
  }
  else
  {
    NSLog(@">> Camera permission granted");
  }
}
 
void CheckCameraPermissionBis()
{
  AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
  if(authStatus == AVAuthorizationStatusAuthorized)
  {
    NSLog(@"Already granted access to %@", AVMediaTypeVideo);
  }
  else if(authStatus == AVAuthorizationStatusDenied)
  {
    NSLog(@"Already denied access to %@", AVMediaTypeVideo);
  } else if(authStatus == AVAuthorizationStatusRestricted){
    NSLog(@"Already denied access to %@", AVMediaTypeVideo);
  } else if(authStatus == AVAuthorizationStatusNotDetermined){
    // not determined?!
    [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
      if(granted){
        NSLog(@"Granted access to %@", AVMediaTypeVideo);
      } else {
        NSLog(@"Not granted access to %@", AVMediaTypeVideo);
      }
    }];
  } else {
    // impossible, unknown authorization status
  }
}