根据 字符串长度 自适配窗体大小，绑定当前UI父节点：

        // arg0: 提示信息
        // arg1: 提示框体父节点
        public void ShowToastUI(string str, Transform trans)
        {
            GameObject toast = Resources<span class="hljs-preprocessor">.Load</span>(<span class="hljs-string">"XXX"</span>) as GameObject<span class="hljs-comment">; // 加载预制体</span>
            GameObject m_toast = Instantiate(toast, null, true)<span class="hljs-comment">;    // 对象初始化</span>
            m_toast<span class="hljs-preprocessor">.transform</span><span class="hljs-preprocessor">.parent</span> = trans<span class="hljs-comment">;</span>
            m_toast<span class="hljs-preprocessor">.transform</span><span class="hljs-preprocessor">.localScale</span> = Vector3<span class="hljs-preprocessor">.one</span><span class="hljs-comment">;</span>
            m_toast<span class="hljs-preprocessor">.transform</span><span class="hljs-preprocessor">.localPosition</span> = Vector3<span class="hljs-preprocessor">.zero</span><span class="hljs-comment">;</span>
            RectTransform transform = m_toast<span class="hljs-preprocessor">.transform</span><span class="hljs-preprocessor">.GetComponent</span>()<span class="hljs-comment">;</span>
            Text tips = m_toast<span class="hljs-preprocessor">.transform</span><span class="hljs-preprocessor">.FindChild</span>(<span class="hljs-string">"lab_toast"</span>)<span class="hljs-preprocessor">.GetComponent</span>()<span class="hljs-comment">;</span>
            tips<span class="hljs-preprocessor">.text</span> = str<span class="hljs-comment">; </span>
            // 根据字符长度，适配窗体大小
            // arg0: 字符串长度*文本字体大小，再加上边距为提示窗体的宽度
            // arg1: 提示窗体高度 <span class="hljs-number">45</span> (可根据自己需求做适当修改)
            transform<span class="hljs-preprocessor">.sizeDelta</span> = new Vector2(str<span class="hljs-preprocessor">.Length</span> * tips<span class="hljs-preprocessor">.fontSize</span> + <span class="hljs-number">35</span>, <span class="hljs-number">45</span>)<span class="hljs-comment">;</span>

            GameObject<span class="hljs-preprocessor">.Destroy</span>(m_toast, <span class="hljs-number">2</span>)<span class="hljs-comment">;</span>
        }