从库中选择图像并发送到DetailViewController

Question

如何使用 Segue

从库中添加图片并将图像从 MasterViewController 发送到 DetailViewController

Answer 1

查看本教程中的图像选择器： http://www.techotopia.com/index.php/Accessing_the_iOS_7_Camera_and_Photo_Library

按照您想要的方式打开它之后，您需要在UIImagePicker委托的此委托方法中调用您的segue：

-(void)imagePickerController:
(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info

{
     _image = info[UIImagePickerControllerOriginalImage];
     [self performSegueWithIdentifier:@"MySegue" sender:sender];
}

在你的prepareForSeague中：

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // Make sure your segue name in storyboard is the same as this line
    if ([[segue identifier] isEqualToString:@"MySegue"])
    {
        // Get reference to the destination view controller
        YourViewController *vc = [segue destinationViewController];

        // Pass any objects to the view controller here, like...
        [vc setMyObjectHere:_image];
    }
}

当然，您需要为故事板内的segue建立正确的连接。但我想你想要的是需要做的事情的大局。

我希望它有所帮助！