LBTextField *textField = [[LBTextField alloc] initWithFrame:CGRectMake(20, 200, CGRectGetWidth(self.view.frame)-20*2, 50)];
textField.placeholder = @"请输入手机号";
textField.lb_maxLength = @11;
textField.lb_inputPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",@"[0-9]*"];//只能输入数字 ＝ textField.keyboardType = UIKeyboardTypeNumberPad;
textField.lb_textPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", @"^1(\\d{10})"];//输入格式为1开头的11位数字的时候lb_textError=nil;
//textField.lb_inputType = LBMobileInput;//以上所有自定义的设置你也可以快捷的直接设置type为LBMobileInput
textField.lb_textFormatter = @[@3,@" ",@4,@" ",@4];//比如188 8888 8888