Share Extension 怎么唤起containing

{
UIResponder *responder = self;
while (responder) {
SEL openSelector = NSSelectorFromString(@"openURL:");
if([responder respondsToSelector:openSelector]) {
[responder performSelector:openSelector withObject:[NSURL URLWithString:@"xxx://xxxx"] afterDelay:1.0];
break;
}
responder = [responder nextResponder];
}