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;
iOS 8 之后推荐用 #import <Photos/Photos.h> 中的判断
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;
}