Android 自定义属性(attrs)、样式(Style)、主题(Theme)
https://www.cnblogs.com/dandre/p/4507024.html
https://blog.csdn.net/utomi/article/details/72898180
https://blog.csdn.net/lmj623565791/article/details/45022631
https://blog.csdn.net/c10WTiybQ1Ye3/article/details/80089934
https://www.cnblogs.com/punkisnotdead/p/4968851.html
https://blog.csdn.net/yzpbright/article/details/77945444
https://blog.csdn.net/yeyuehei/article/details/52808380
TypedArray:
AttributeSet:
LayoutInflaterCompat.setFactory