iOS调用系统照相机

点击按钮后操作

- (IBAction)takePhoto:(UIButton *)sender {    UIImagePickerController * picker = [[UIImagePickerController alloc] init];    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {    picker.sourceType = UIImagePickerControllerSourceTypeCamera;    picker.delegate = self;    [self presentViewController:picker animated:YES completion:nil];    }}

拍照完成后操作

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {    UIImage * img = [info objectForKey:UIImagePickerControllerOriginalImage];    //photoImgView是一个imageview    self.photoImgView.image = img;    [self dismissViewControllerAnimated:YES completion:nil];}