intToHex static method
Converts the given integer i
to a hex string with a leading #.
Note that only the RGB values will be returned (like #RRGGBB), so and alpha/opacity value will be stripped.
Implementation
static String intToHex(int i) {
assert(i >= 0 && i <= 0xFFFFFFFF);
return '#${(i & 0xFFFFFF | 0x1000000).toRadixString(16).substring(1).toUpperCase()}';
}