Method setItemText

packages/fairygui/src/widgets/PopupMenu.ts:148–153

* Set item text by name * 通过名称设置菜单项文本

(name: string, caption: string)

     * 通过名称设置菜单项文本
     */
    public setItemText(name: string, caption: string): void {
        const item = this._list.getChild(name);
        if (item && item instanceof GButton) {
            item.title = caption;
        }
    }

    /**
     * Set item visibility by name