January 2012
Intermediate to advanced
584 pages
11h 56m
Chinese
Content preview from 操作介面設計模式 第二版
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模式
|
97
情境面板（
Modal Panel
）
圖
3
-
22
情境面板示意圖
這是什麼
只呈現一個頁面，沒有其他導覽選項，直到使用者結束當前的任務。
何時使用
應用程式或網站進入一種狀態，此時如果沒有取得使用者輸入的資料，則不應該或
不可以繼續瀏覽。在文件中心的應用程式裡，像是「儲存」這類行動或許就需要使
用者先輸入儲存檔名（如果沒有事先設定檔名時）。在其他情形中，可能是需要使
用者先登入再進行後續行動，或是需要登入才能讀取重要訊息。
如果使用者只是開啟一個次要行動，不過又有可能需要輸入更多資訊時，請試著想
出不使用情境面板來要求輸入的其他方式。例如說，可以在使用者點擊的按鈕旁顯
示一個文字框，然後讓文字框「懸」在那裡，直到使用者回來注意文字框 — 我們
不需要停住整個網站或程式的活動，只為了等待輸入。請讓使用者可以先做其他事
情，稍後再回答我們的問題。
為何使用
情境面板將使用者與其他所有導覽功能全部隔絕。使用者無法忽視情境面板而逕行
前往應用程式或網站的其他部分：他必須在現在就處理完情境面板上的任務，完成
之後，他會被送回之前所在的地方。
這個模型相當容易瞭解 — 也很容易寫出來 — 但是最近幾年在應用程式上有點使用
過度。情境面板是具有干擾效果的，如果使用者尚未準備好面對情境面板所要問的
事情，這將會中斷使用者的工作流程，可能是逼迫使用者回答一個他一點都不在意
的問題。但如果情境面板使用的時機適當，就可以將使用者的注意力導引到他需要
做的下一個決策。情境面上沒有其它的導覽可能性能讓使用者分心。
DI_2e_ch03.indd ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.