IOS 颜色值#ffffff转UIColor

• (UIColor*)colorWithHexString:(NSString*)stringToConvert{
  if([stringToConverthasPrefix:@”#”])
  {
  stringToConvert = [stringToConvertsubstringFromIndex:1];
  }
  NSScanner*scanner = [NSScannerscannerWithString:stringToConvert];
  unsignedhexNum;
  if(![scannerscanHexInt:&hexNum])
  {
  returnnil;
  }
  return[UIColorcolorWithRGBHex:hexNum];
  }

• (UIColor*)colorWithRGBHex:(UInt32)hex{
  intr = (hex >>16) &0xFF;
  intg = (hex >>8) &0xFF;
  intb = (hex) &0xFF;
  return[UIColorcolorWithRed:r /255.0f
  green:g /255.0f
  blue:b /255.0f
  alpha:1.0f];
  }