If my url has a space at the end it crashes with EXC_BAD_INSTRUCTION.
I thought canOpenURL would trap for a bad URL but it doesn't.
if let strurl = cell.url{
if (UIApplication.sharedApplication().canOpenURL(NSURL(string:strurl)!)) {
UIApplication.sharedApplication().openURL(NSURL(string:strurl)!);
}
}
In my case a URL with an extra space at the end crashes it. I can trim white space, but what about anything else? Is there a proper way to trap for this error?
You are force unwrapping NSURL
which causes the app to crash if it happens to be nil
. To check the validity of the URL you should be using if let
on the URL itself as well.
if let strurl = cell.url,
let url = NSURL(string: strurl) {
if (UIApplication.sharedApplication().canOpenURL(url) {
UIApplication.sharedApplication().openURL(url)
}
}
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