的UIApplication的OpenURL背景 [英] UIApplication openURL background

问题描述

在我的iOS 4的应用程序，我需要从后台打开一个URL，从用户指定的时间。然而，由于某种原因，我无法从背景由于某些原因发射的URL。这里是我的code打开一个网址：

In my iOS 4 application, I need to open a URL from the background, at a time specified from the user. However, for some reason, I cannot launch a URL from the background for some reason. Here is my code for opening a URL:

if (![[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://www.stackoverflow.com"]])
{
     // the URL wasn't opened. we will ignore this for now.
}

这code是所有正在从先前创建一个守护线程启动。我已经测试在模拟器上这个code和URL没有打开，方法返回是由于某些原因，但是当我再次打开我的应用程序（通过快速应用程序切换），它打开的URL。是否有某种方式，我可以让我的应用程序在这一点（不是通过本地通知）再来到前台，这样的URL可能会打开，或者这是一个错误或无证功能。此外，如果有另一种方式来打开URL，即会在后台工作，这将是有益的了。

That code is all being launched from a daemon thread created earlier. I have tested this code on the simulator, and the URL is not opened, and the method returns YES for some reason, but when I open my application again (via fast-app-switching) it opens the URL. Is there some way that I can make my application come to the foreground again at this point (not via a local notification) so that the URL may open, or is this a bug or undocumented feature. Also, if there is another way to open the URL, that will work in the background, that would be helpful too.

推荐答案

我相信我已经找到它（不能在模拟器工作，因为它传递的命令对MAC的终端，因为没有为没有命令行模拟器）。使用此：

I believe I have found it (doesn't work on simulator, because it passes commands to the terminal on the mac, as there is no command line for the simulator). Use this:

system([[NSString stringWithFormat:@"uiopen \"%@\"", myUrlToOpen] UTF8String]);

这将通过命令 uiopen （通过越狱找到）到设备，迫使它打开URL。我希望这可以帮助其他人在我的位置上。

That will pass the command uiopen (found via jailbreak) to the device, forcing it to open that URL. I hope this helps others in my position.

这篇关于的UIApplication的OpenURL背景的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！