case of who killed arcs on Android https://goo.gl/gWLZ71 Hinting Around: Android text demystified (talk) https://goo.gl/3vyehQ use the Source! Creating Custom Views (official documentation) http://goo.gl/cPbWQW Hardware Acceleration (official documentation) http://goo.gl/AEL1O5 Romain Guy blog http://goo.gl/iUjZPH Dianne Hackborn – about Hardware Acceleration https://goo.gl/tpZ7ex