解雇UIImagePickerController也会解散呈现视图控制器 [英] Dismissing of UIImagePickerController dismisses presenting view controller also

问题描述

我正在开发一个使用tabbar系统的项目。 tabbar项之一是JobPostingViewController。我将它嵌入UINavigationController中。在这个视图控制器中有一个名为add new job的UIButton。我实现了pushviewcontroller去CreateJobPostViewController。在那里我需要添加UIImagePickerController来选择图像。当我点击完成按钮或从库中选择一个图像时，它会关闭到JobPostingViewController。但它应该去CreateJobPostViewController。
任何人请帮助我。在此先感谢。

I am working on a project that uses tabbar system. One of the item of tabbar is JobPostingViewController. I Embed it in UINavigationController. There is a UIButton called add new job in this view controller .I implemented pushviewcontroller to go CreateJobPostViewController. There I need to add UIImagePickerController to choose the image. When i tap done button or choose an image from library it dismisses to JobPostingViewController. But it should go to the CreateJobPostViewController. Any one please help me. Thanks in advance.

您可以在此处查看问题：

You can see the issue here:

JobPostingViewController中的代码

Code in JobPostingViewController

 @IBAction func openCreateJob(sender: AnyObject) {
    let vc = self.storyboard?.instantiateViewControllerWithIdentifier("CreateJobPostViewController") as! CreateJobPostViewController
    self.navigationController?.pushViewController(vc, animated: true)
}

CreateJobPostViewController中的代码

Code in CreateJobPostViewController

   @IBAction func addImages(sender: AnyObject) {
    imagePicker.allowsEditing = false
    imagePicker.sourceType = .PhotoLibrary
    presentViewController(imagePicker, animated: true, completion: nil)
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
    picker.dismissViewControllerAnimated(true, completion: nil)
}
func imagePickerControllerDidCancel(picker: UIImagePickerController) {
    picker.dismissViewControllerAnimated(true, completion: nil)
}

推荐答案

将Picker添加为子视图

Adding Picker as subview

尝试将imagepicker作为子视图添加到CreateJobPostViewController ins中提交它然后从委托中的父项中删除它

try to add the imagepicker as a subview to your CreateJobPostViewController insted of presenting it and then remove it from parent in the delegtes

@IBAction func openCreateJob(sender: AnyObject) {

var picker: UIImagePickerController = UIImagePickerController()
picker.delegate = self
picker.allowsEditing = false
picker.sourceType = .PhotoLibrary
self.addChildViewController(picker)
picker.didMoveToParentViewController(self)
self.view!.addSubview(picker.view!)
}

然后

 func imagePickerControllerDidCancel(picker: UIImagePickerController) {

    picker.view!.removeFromSuperview()
    picker.removeFromParentViewController()
    }

用于展示

For presenting

在currentcontext上显示选择器，其中包括编辑取消选择，

showing picker over currentcontext with options like edit cancel choose,

使用 picker.modalPresentationStyle = .overCurrentContext //在呈现
之前

use picker.modalPresentationStyle = .overCurrentContext //before presenting it

 presentViewController(picker, animated: true, completion: nil)

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