December 2013
Intermediate to advanced
752 pages
16h
Chinese
Content preview from MOBILE WEB程式設計--第二版
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地理定位與地圖
|
523
載入 API 之後，
google.loader.ClientLocation
會被填入一些屬性，如：
•
latitude
•
longitude
•
address.city
•
address.country
•
address.country_code
•
address.region
這項技術只能在相容的設備上發揮作用，且只能與 Ajax API 之一同時使
用（Ajax Search、Maps、Ajax Feeds、Earth、Data、Visualization、
Friend Connect、或 Ajax Language）。
地圖∕導航 App 整合
在某些平台上，例如 iOS、Windows Phone，與 Android 都有獨立於瀏覽器的原生地圖
應用程式，我們可以在某些情況下打開它們，例如啟用轉向導航程序。若要在網站上與
這個 App 通訊，我們會直接使用標準的 URI，在第十五章將會提到。
Android Google Maps
若要呼叫 Android 設備上的 Google Maps 應用程式，我們可以直接指向
maps.google.com
，
並按照基本格式選擇傳送任何想要加入的參數
http://maps.google.com/?
<attributes>
。這些
屬性應該使用 URL 格式，如
attribute1=value1&attribute2=value2
。可用的屬性包括：
q
查詢參數；它可以是以逗號分隔的座標，並前置
loc:
（
loc:
lat
,
long ...
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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.