used Android-Universal-Image-Loader lib to cache picture from flickr.
photo page is displayed by two style, ImagePager or WebView from flickr.
used a singleSelect AlertDialog to contral the two style.
The follow list is the main point for android.
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Http request via a url.
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The XML files parse.(Here used XmlPullParser)
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The code structure by Activity attach Fragment.
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How to use WebView to display a web page.