Android Information (2017) The following is a collection of information pulled from the web. Almost everything was created by others with links to the original source.

Contents

Memory Leaks

Android Auto Car / Screen life cycle

Activity Life Cycle (fragment life cycle)

View Life Cycle

RecyclerView Life Cycle

Save Instance state does not always work.

OS API Levels

Coordinate system and rotation

OS data directory "/data and /data/data" App data storage options

Android Pixel Calculator [by angrytools.com]

MultiDex (64k limit)

Android Icon Sizes [by conhandbook.co.uk]

Android Regular Expression (Pattern, Matcher, Regex)

Git diagrams