This is what I do
val color = String.format("0XFF%02x%02x%02x", r, g, b)
this returns me a string "0XFFhexcode" I want to convert it to long, to store it and then use it as a color
color.toLong()
I have the following error
java.lang.NumberFormatException: For input string: 0XFFhexcode
This code might help you:
Integer.toHexString(Color.rgb(r, g, b))
You can do it simply like the following:
val rgb = Color.rgb(red, green, blue)
val hex = String.format("#%06X", 0xFFFFFF and rgb)
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