1.判断用户是否有权限访问相册
#import <AssetsLibrary/AssetsLibrary.h>
ALAuthorizationStatus author =[ALAssetsLibrary authorizationStatus];
if (author == kCLAuthorizationStatusRestricted || author ==kCLAuthorizationStatusDenied)
{
//无权限
}可以注意一下下面这个
typedef enum {
kCLAuthorizationStatusNotDetermined = 0, // 用户尚未做出选择这个应用程序的问候
kCLAuthorizationStatusRestricted, // 此应用程序没有被授权访问的照片数据。可能是家长控制权限
kCLAuthorizationStatusDenied, // 用户已经明确否认了这一照片数据的应用程序访问
kCLAuthorizationStatusAuthorized // 用户已经授权应用访问照片数据
} CLAuthorizationStatus;PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
if (status == PHAuthorizationStatusRestricted ||
status == PHAuthorizationStatusDenied) {
return NO;
}
return YES;typedef NS_ENUM(NSInteger, PHAuthorizationStatus) {
PHAuthorizationStatusNotDetermined = 0, // 默认还没做出选择
PHAuthorizationStatusRestricted, // 此应用程序没有被授权访问的照片数据
PHAuthorizationStatusDenied, // 用户已经明确否认了这一照片数据的应用程序访问
PHAuthorizationStatusAuthorized // 用户已经授权应用访问照片数据
} NS_AVAILABLE_IOS(8_0);推荐使用
- (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;
}英语环境下的没有权限
2.判断用户是否有权限访问相机
iOS7之前都可以访问相机，iOS7之后访问相机有权限设置，所以还是需要我们手动去设置判断。
#import <AVFoundation/AVCaptureDevice.h>
#import <AVFoundation/AVMediaFormat.h>
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied)
{
//无权限
}typedef NS_ENUM(NSInteger, AVAuthorizationStatus) {
AVAuthorizationStatusNotDetermined = 0,// 系统还未知是否访问，第一次开启相机时
AVAuthorizationStatusRestricted, // 受限制的
AVAuthorizationStatusDenied, //不允许
AVAuthorizationStatusAuthorized // 允许状态
} NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;