Android Dev Tool
enjarify dex -> jar
CFR java decompile

• dp or dip means Density-independent Pixels
• dpi or ppi means Dots (or Pixels) Per Inch
• inch is a physical measurement connected to actual screen size
• px means Pixels — a pixel fills an arbitrary amount of screen area depending on density

Doc
supported HTML elements in Android String
自定义resourceId
字符串复数
dp设计意图
Drawable resources
Android Officially recommand Glide see the note
code style for AOSP
ConstraintLayout
API Level
jsoup: Java HTML Parser
Android Gradle plugin release notes