1.判断用户是否有权限访问相册
#import <AssetsLibrary/AssetsLibrary.h> ALAuthorizationStatus author = [ALAssetsLibraryauthorizationStatus]; if (author == kCLAuthorizationStatusRestricted || author ==kCLAuthorizationStatusDenied) { //无权限 } 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;
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
#import <AVFoundation/AVCaptureDevice.h> #import <AVFoundation/AVMediaFormat.h> AVAuthorizationStatus authStatus = [AVCaptureDeviceauthorizationStatusForMediaType:AVMediaTypeVideo]; if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied) { //无权限 }
3.判断是否开启定位服务
[CLLocationManagerlocationServicesEnabled] //检测的是整个的iOS系统的定位服务是否开启 检测当前应用的定位服务是否开启需要通过一下方法来检测 - (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
判断是否有权限访问相机,相册,定位,布布扣,bubuko.com
原文:http://blog.csdn.net/lin1986lin/article/details/27340825