CODEWITHSUNDEEP
javaandroid
user18837670
user18837670

Reputation:

Android Paint setColor can't parse hex value to int

I'm currently trying to take in a hex value for a color, ie #0000ff or #0000ffff if it's in hexadecimal (if this is right), and then pass it into my Paint object with paintObject.setColor().

However, whenever I try to do something of the following, I always get a failure message saying parseInt() failed with the following inputs:

String hexColor = "#0000ff"; String longerColor = "#0000ffff";

Manually plugging in an integer, ie something like 0xFFFFA500 allows me to just set the color as orange, so I'm pretty confused here. I'm sure its a tiny error that I'm making.

Upvotes: 1

Views: 335

Answers (1)

Computable
Computable

Reputation: 1471

Most direct solution would be to use Color.parseColor:

String hexColor = "#0000ff"; String longerColor = "#0000ffff";

paintObject.setColor(Color.parseColor(hexColor));

which accepts the strings you have specified (both rgb and argb).

If the hex strings are not validated for format then be sure to handle the IllegalArgumentException thrown by parseColor.

Alternatively, to follow along your attempts, specify the radix in Integer.parseInt():

paintObject.setColor(Integer.parseInt(hexColor.substring(1),16));

As you have used it, the Integer.parseInt(s) assumes a radix of 10 and the only non-digit characters it accepts are a + or - in the first position.

Upvotes: 3

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