XCODE:对于< UIFileUploadFallbackRootViewController的开始/结束外观转换的不平衡调用 [英] XCODE: Unbalanced calls to begin/end appearance transitions for <UIFileUploadFallbackRootViewController

问题描述

我的应用程序中有一个UIWebView，在该Web视图中，我导航到移动站点，在该站点上有一个按钮输入，类型为"Choose File"，用于加载新的个人资料图片.每次我从出现的下拉式iPhone菜单中尝试选择现有的"或拍摄照片"选项时，当View Controller消失以允许我选择照片时，都会收到以下错误消息:

I have in my app a UIWebView, and in that web view I navigate to my mobile site where there is a button input with type 'Choose File' for loading a new profile picture. Each time I try the 'Choose Existing' or 'Take Photo' options from the resulting pull-up iPhone menu, I receive the following error when my View Controller disappears to allow me to choose a photo:

用于UIFileUploadFallbackRootViewController的开始/结束外观转换的不平衡调用:0x20d65940"

选择图像后，应用程序仅返回黑屏...

After an image is chosen, the app just returns a black screen...

当我在Safari中执行相同的操作时，选择文件"功能可以很好地工作.

When I perform the same operation in Safari, the 'Choose File' function works perfectly fine.

注释:

1.)我在我的应用程序中使用了UINavigationController(即，弹出并推送视图).

1.) I am using a UINavigationController within my app (i.e. popping and pushing views).

2.)移动网站上的HTML代码，用于加载照片:

2.) HTML Code on mobile website for loading photos:

<form class="appnitro" enctype="multipart/form-data" method="post" action="mysite.php">
<input id="file1" name="file1" class="button_text" type="file" size="50px"/> <br />
<input id="submitpic" class="button_text" type="submit" name="submit" value="Save Picture"     />

使用jquery mobile.

在此先感谢您提供的任何帮助！

Thanks in advance for any help you can offer!

推荐答案

未设置窗口的rootViewController.

Your window's rootViewController is not set.

查看此答案: https://stackoverflow.com/a/16548036/199516

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