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語言：英語
網址：http://www.lynda.com/HTML-tutorials/HTML5-Geolocation-in-Depth/84810-2.html
類別：教程



（xuehui@TLF）
Lynda.com 出品的時長34分的深入學習HTML5 Geolocation地理定位視頻教程。由Bill Weinman演示了利用JavaScript，CSS和HTML5如何添加地理位置追蹤到Web應用程序裡。Bill對geolocation API作了詳細的講解，包括每個開發人員都應該考慮到的數據可靠性，能耗和隱私問題等需考慮的因素。搜索設備坐標(不管是一次或連續)，處理錯誤，結合Google Maps數據創建一個location-aware位置感知Web應用程序可以運行在許多移動浏覽器上。本教程附帶練習文件。


HTML5: Geolocation in Depth shows how to add location tracking to a web application with a combination of JavaScript, CSS and HTML5. First, author and HTML5 expert Bill Weinman provides a thorough explanation of the geolocation API, including considerations every developer should take into account, such as data dependability, power usage, and privacy concerns. The course then covers how to detect support for geolocation, retrieve coordinates from a device (whether once or continuously), handle errors, and integrate the results with Google Maps to create a location-aware web application that will run on many mobile browsers. Exercise files are included with the course.

Topics include:
Understanding how geolocation works
Detecting geolocation support
Getting coordinates
Continuous tracking with watchPosition()
Integrating geolocation with Google Maps