UIImagePickerController 拍照

@interface TestAlertViewController ()<UIActionSheetDelegate,UIImagePickerControllerDelegate, UINavigationControllerDelegate>

@property (nonatomic,strong )IBOutlet UIImageView *phonoImage;

@property (nonatomic,strong )UIImagePickerController *imagePikerViewController;

@end

@implementation TestAlertViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    self.imagePikerViewController = [[UIImagePickerControlleralloc]init];

    self.imagePikerViewController.delegate =self;

    self.phonoImage.contentMode = UIViewContentModeScaleAspectFit;

}

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{

    UIImage *image = info[UIImagePickerControllerEditedImage];

    if (!image) {

        image = info[UIImagePickerControllerOriginalImage];

    }

    self.phonoImage.image = image;

    [selfdismissViewControllerAnimated:YEScompletion:NULL];

}

-(void) imagePickerControllerDidCancel:(UIImagePickerController *)picker{

    [selfdismissViewControllerAnimated:YEScompletion:NULL];

}

- (IBAction)alertButton:(UIButton *)sender {

    UIAlertController *alertController = [UIAlertControlleralertControllerWithTitle:nilmessage:nilpreferredStyle:UIAlertControllerStyleAlert];

    [alertController addAction:[UIAlertActionactionWithTitle:@"拍照"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction *_Nonnull action) {

     //处理拍照

        if ([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {

            self.imagePikerViewController.sourceType = UIImagePickerControllerSourceTypeCamera;

            [selfpresentViewController:self.imagePikerViewControlleranimated:YEScompletion:NULL];

        }

    }]];

    [alertController addAction:[UIAlertActionactionWithTitle:@"从相册中选取"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction *_Nonnull action) {

    //从相册中选取

        if ([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]){

            self.imagePikerViewController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

            [selfpresentViewController:self.imagePikerViewControlleranimated:YEScompletion:NULL];

        }

    }]];

    [alertController addAction:[UIAlertActionactionWithTitle:@"取消"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction *_Nonnull action) {

    }]];

    [selfpresentViewController:alertController animated:YEScompletion:nil];

}