Android dev

动画：
https://developer.android.com/guide/topics/graphics/prop-animation.html#property-vs-view

https://developer.android.com/guide/topics/resources/animation-resource.html

https://developer.android.com/guide/topics/resources/animation-resource.html#Frame

网络：

https://developer.android.com/training/basics/network-ops/connecting.html

所有的索引：
https://developer.android.com/training/index.html

版本变动：
https://developer.android.com/about/versions/marshmallow/android-6.0-changes.html

Intent and IntentFilter
https://developer.android.com/guide/components/intents-filters.html?hl=zh-cn#Building
https://developer.android.com/guide/topics/manifest/data-element.html#scheme