相機權限

//需要添加#import <AVFoundation/AVFoundation.h>

NSString *mediaType = AVMediaTypeVideo;
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:mediaType];
if(authStatus == ALAuthorizationStatusRestricted || authStatus == ALAuthorizationStatusDenied){

     NSLog(@"不允許訪問相機");
    //跳轉到設置頁面中自己的應用下
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
    
}

相冊權限

//需要添加#import <AssetsLibrary/AssetsLibrary.h>

ALAuthorizationStatus author = [ALAssetsLibrary authorizationStatus];
if (author == ALAuthorizationStatusRestricted || author ==ALAuthorizationStatusDenied)
{
     NSLog(@"不允許訪問相冊");
    //跳轉到設置頁面中自己的應用下
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
}

注意

在更改了權限之后，app會自動關閉， 然后試了一下其他的app同樣會出現這樣的問題，這個崩潰是系統造成的，不知道是它的bug還是它確實需要強行殺掉你的app