Hex Colors in Android are some times 8 digits. How? What is the difference between #FFFFFF and #FFFFFF00

Question

I sometimes have seen in examples where the coloring in Android is done as #FF191919. I mean a 8 digit hex number . But it should be only a 6 digit number. How are they rela

Answer 1

8-digit hex is an ARGB color. It is the same as usual RGB, but provides an extra alpha channel.

#RRGGBB in RGB is the same as #00RRGGBB in ARGB. Also take a look at Color.argb.