iOS 请求权限封装类的实例代码

#import <Foundation/Foundation.h>#import <AVFoundation/AVFoundation.h>#import <AssetsLibrary/AssetsLibrary.h>#import <Photos/Photos.h>#import <CoreLocation/CoreLocation.h>@interface PermissionUtil : NSObject+(Boolean)JudgeCameraPermission;+(Boolean)JudgeLocationPermission;@end

#import "PermissionUtil.h"@implementation PermissionUtil+(BOOL)isCanUsePhotos { if ([[[UIDevice currentDevice] systemVersion] floatValue] < 8.0) {  ALAuthorizationStatus author =[ALAssetsLibrary authorizationStatus];  if (author == kCLAuthorizationStatusRestricted || author == kCLAuthorizationStatusDenied) {   //无权限   return NO;  } } else {  PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];  if (status == PHAuthorizationStatusRestricted ||   status == PHAuthorizationStatusDenied) {   //无权限   return NO;  } } return YES;}+(Boolean)JudgeCameraPermission{ AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo]; if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied||![self isCanUsePhotos]) {  return NO; } return YES;}+(Boolean)JudgeLocationPermission{ if ([CLLocationManager locationServicesEnabled] && ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedWhenInUse || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorized)) {  return YES; }else if ([CLLocationManager authorizationStatus] ==kCLAuthorizationStatusDenied) {  return NO; } return NO;}@end