iOS 判断应用是否有使用相机的权限

iOS  判断应用是否有使用相机的权限

NSString *mediaType =
AVMediaTypeVideo;

AVAuthorizationStatus authStatus = [AVCaptureDevice
authorizationStatusForMediaType:mediaType];

if(authStatus ==
ALAuthorizationStatusRestricted || authStatus ==
ALAuthorizationStatusDenied){

NSLog(@"相机权限受限");

return;

}

-------

全部状态

typedef NS_ENUM(NSInteger, ALAuthorizationStatus) {

ALAuthorizationStatusNotDetermined = 0,
// User has not yet made a choice with regards to this application

ALAuthorizationStatusRestricted,       
// This application is not authorized to access photo data.

// The user cannot change this application’s status, possibly due to active restrictions

//  such as parental controls being in place.

ALAuthorizationStatusDenied,           
// User has explicitly denied this application access to photos data.

ALAuthorizationStatusAuthorized        
// User has authorized this application to access photos data.

} __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_6_0);

注意：要添加 AVFoundation 库。