切换到我的应用程序会导致粘贴板清除。 iPad 粘贴按钮有时不会出现
我在粘贴板方面遇到了一个非常奇怪的问题，我正在寻找建议：
当切换到我的应用程序以粘贴一些文本时，粘贴板中的文本有时会被清除，因此当我尝试粘贴时，粘贴板中没有任何内容不再是纸板了。在其他应用程序中切换和粘贴都很好，所以我的应用程序有一些独特之处。
这是问题（模拟器）的视频以及我发现的奇怪的解决方法。 http://screencast.com/t/ID57TikvFOD
示例：如果我在邮件中，请复制一些文本，然后双击主页并切换到我正在运行的应用程序，粘贴选项几乎从未出现。当我转到输入框并按住时，“粘贴”按钮永远不会出现。 奇怪的是，这种行为并不一致，因为它有时有效。我猜大约 20% 的时间它可以工作，80% 的时间粘贴板被清除。我认为这可能是内存警告清除粘贴板，所以我用仪器中的“活动监视器”查看了我的 iPad，但没有看到任何内存警告。
这让我抓狂。我可以在我的 iOS 5 ipad 以及 4.2 和 5.0 模拟器中重现同样的不一致情况。我的客户正在运行 4.2，我发现的解决方法（双切换）对他不起作用。
在我的代码中，我唯一一次引用粘贴板时，我只是将东西放入其中。我从来没有清除过它。
- (IBAction)copyToClipboard:(id)sender {
UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
pasteboard.string = currentCard.concept.chineseWord;
[self._delegate dismissPopover];
知道
可能出了什么问题吗？
I'm having a really strange issue with the Pasteboard, and I'm looking for suggestions:
When switching into my app to paste some text, the text in the pasteboard sometimes gets cleared, so when I try to paste there is nothing in the pasteboard anymore. Switching and pasting in other apps are fine, so something is unique about my app.
heres a video of the problem (simulator) and the weird work around i've found.
http://screencast.com/t/ID57TikvFOD
Example: if i am in mail, copy some text, and then double tap home and switch to my running app, the paste option almost never appears. When i go to my input box and press-and-hold, the Paste button never appears.
Oddly, this behavior is not consistent as it sometimes works. I'd guess about 20% of the time it works and 80% of the time the pasteboard is cleared. I thought it might be a memory warning clearing the pasteboard, so I watched my iPad with "activity monitor" in instruments and I dont see any memory warnings.
This is driving me nuts. I can repro the same inconsistency in my iOS 5 ipad, as well as 4.2 and 5.0 simulators. My customer is running 4.2 and the work-around i've found (double switching) doesn't work for him.
In my code, the only time i ever reference the pasteboard i'm just putting things in it. i never clear it.
- (IBAction)copyToClipboard:(id)sender {
UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
pasteboard.string = currentCard.concept.chineseWord;
[self._delegate dismissPopover];
}
Any idea what might be going wrong?
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AndreasZ 的建议解决了我的问题。 Flurry 存在问题并导致了粘贴板问题。
AndreasZ's tip solved the problem for me. Flurry was buggy and was causing the pasteboard issue.