question: @ SuppressWarnings ( "UseJBColor" ) @ Nullable public static Color parseColor ( @ Nullable String s ) { s = StringUtil . trim ( s ) ; if ( StringUtil . isEmpty ( s ) ) { return null ; } if ( s . charAt ( 0 ) == '#' ) { long longColor ; try { longColor = Long . parseLong ( s . substring ( 1 ) , 16 ) ; } catch ( NumberFormatException e ) { return null ; } if ( s . length ( ) == 4 || s . length ( ) == 5 ) { long a = s . length ( ) == 4 ? 0xff : extend ( ( longColor & 0xf000 ) > > 12 ) ; long r = extend ( ( longColor & 0xf00 ) > > 8 ) ; long g = extend ( ( longColor & 0x0f0 ) > > 4 ) ; long b = extend ( ( longColor & 0x00f ) ) ; longColor = ( a << 24 ) | ( r << 16 ) | ( g << 8 ) | b ; return new Color ( ( int ) longColor , true ) ; } if ( s . length ( ) == 7 ) { longColor |= 0x00000000ff000000 ; } else if ( s . length ( ) != 9 ) { return null ; } return new Color ( ( int ) longColor , true ) ; } return null ; }
target:  Converts the supported color formats (#rgb, #argb, #rrggbb, #aarrggbb to a Color http://developer.android.com/guide/topics/resources/more-resources.html#Color