在yourUIView.swift中與xib做聯結

required init(coder aDecoder: NSCoder) {

        super.init(coder: aDecoder)

        self.view = NSBundle.mainBundle().loadNibNamed("ChatPanelView", owner: self, options: nil)[0] as! UIView

        self.view.frame = CGRectMake(0, 0, DefaultConfig.SCREEN_WIDTH, 87)

        self.addSubview(self.view)

        self.setNeedsUpdateConstraints()

        self.inputTextField.text = Language.get("TYPE_A_MESSAGE", comment: "Type a message")

        self.inputTextField.scrollEnabled = false

    }