UIAlertView is crashing app on iOS 7

Question

I have just released my app on the App Store however I have just been emailed and told that there is issues with crashing.

The issue is with Alert Views which crash

Answer 1

I had the same problem in the relese build. It seems an internal bug of the swift compiler (using Xcode 6.0.1 (6A317) )

I solved actually with a objC helper class with this method:

+ (BOOL) checkIfClassExists:(NSString *)className {
    id c = objc_getClass([className cStringUsingEncoding:NSASCIIStringEncoding]);
    if (c != nil) {
        return YES;
    } else {
        return NO;
    }
}

called in my swift code with a bridge header

if ObjCFix.checkIfClassExists("UIAlertController") {
    //iOS 8 code here
} else {
    //iOS 7 code here
}