https://codemumbai.wordpress.com/android-webview-image-upload-solved/

http://maurizionapoleoni.de/blog/implementing-a-file-input-with-camera-support-in-android-with-crosswalk/

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https://mthli.github.io/Android-WebView-JavaScript

http://stackoverflow.com/questions/11544992/taking-a-picture-from-the-camera-fails-20-of-the-time

http://bluereader.org/article/165908253

http://www.mobile-open.com/2015/65366.html

http://www.flapjacksandcode.com/blog/2015/2/17/android-webviews-getusermedia-putting-it-all-together

http://lookintoandroid.blogspot.tw/2015/11/getting-camera-captured-image-in.html
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upload file
http://www.unknownerror.org/opensource/brandonsavage/Upload/q/stackoverflow/5907369/file-upload-in-webview

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用CrossWalk包的話，可以肯定是最新的chrome，保證在操作上的正常！但app會非常的肥大~~

再不然就不能事先說明android 5以上才能存取 camera, file upload