Thinnk about trying to write code that will compile on Objective-C and also on JAVA.

To create a color;

Objective-C

topColor = [UIColor colorWithRed:94/255.0 green:234/255.0 blue:_piBlue/207.0 alpha:1.0];

Android:

topColor = Color.argb(1.0, 94, 234, 207);

My way: ("pi" is "platform independent")

    piRed = 94;
    piGreen = 234;
    piBlue = 207;
    topColor = makeColor();

OR FOR Objective-C

    piRed = 94;
    piGreen = 234;
    piBlue = 207;
    topColor = [self makeColor];  // using a small code conversion program I wrote.

Of course, that ugly platform specific code is hidden away somewhere in common code I use for every app, but just once.