iOS 10 撥打電話延遲的問題

方案一：親測能夠

if (_telPhone.length == 0) {
                return;
            }
            NSString *callPhone = [NSString stringWithFormat:@"telprompt://%@", _telPhone];
            CGFloat version = [[[UIDevice currentDevice]systemVersion]floatValue];
            if (version >= 10.0) {
                /// 大於等於10.0系統使用此openURL方法
                [[UIApplication sharedApplication] openURL:[NSURL URLWithString:callPhone] options:@{} completionHandler:nil];
            } else {
                [[UIApplication sharedApplication] openURL:[NSURL URLWithString:callPhone]];
            }

方案二：寫個線程，有說iOS 11不起做用，因爲沒有真機，未測試

if (_telPhone.length == 0) {  
        return;  
    }  
    NSString *callPhone = [NSString stringWithFormat:@"telprompt://%@", _telPhone];  
    dispatch_async(dispatch_get_global_queue(0, 0), ^{  
        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:callPhone]];  
    });