选择图片——相机与相册

悠悠 2023-10-16 23:04 82阅读 0赞

- (IBAction)touchSelectImg:(id)sender {
        //在这里呼出下方菜单按钮项
        UIActionSheet *myActionSheet = [[UIActionSheet alloc]
                         initWithTitle:nil
                         delegate:self
                         cancelButtonTitle:@"取消"
                         destructiveButtonTitle:nil
                         otherButtonTitles: @"打开照相机", @"从手机相册获取",nil];
        [myActionSheet showInView:self.view];
    }

<UINavigationControllerDelegate,UIImagePickerControllerDelegate,UIActionSheetDelegate>

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
    {
        //呼出的菜单按钮点击后的响应
        if (buttonIndex == actionSheet.cancelButtonIndex){
            NSLog(@"取消");
        }else{
            switch (buttonIndex){
                case 0:  //打开照相机拍照
                    [self takePhoto];
                    break;
                case 1:  //打开本地相册
                    [self LocalPhoto];
                    break;
            }
        }
    }
    
    //开始拍照
    -(void)takePhoto
    {
        UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera;
        if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera])
        {
            UIImagePickerController *picker = [[UIImagePickerController alloc] init];
            picker.delegate = self;
            //设置拍照后的图片可被编辑
            picker.allowsEditing = YES;
            picker.sourceType = sourceType;
            [self presentViewController:picker animated:YES completion:nil];
        }else
        {
            NSLog(@"模拟其中无法打开照相机,请在真机中使用");
        }
    }
    //打开本地相册
    -(void)LocalPhoto
    {
        UIImagePickerController *picker = [[UIImagePickerController alloc] init];
        picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        picker.delegate = self;
        //设置选择后的图片可被编辑
        picker.allowsEditing = YES;
        [self presentViewController:picker animated:YES completion:nil];
    }
    
    
    //当选择一张图片后进入这里
    -(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
    {
        NSString *type = [info objectForKey:UIImagePickerControllerMediaType];
        //当选择的类型是图片
        if ([type isEqualToString:@"public.image"])
        {
            UIImage* image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
            [picker dismissViewControllerAnimated:YES completion:nil];
        }
    }
    //您取消了选择图片
    - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
    {
        NSLog(@"您取消了选择图片");
        [picker dismissViewControllerAnimated:YES completion:nil];
    }