iOS 定位 相册 短信 权限检查

1.判断用户是否有权限访问相册

#import <AssetsLibrary/AssetsLibrary.h>

[objc] view
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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>

[objc] view
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AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];

if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied)

{

//无权限

}

3.判断是否开启定位服务

[objc] view
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[CLLocationManager locationServicesEnabled] //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