Checking Android Versions and Inserting Static Finite Constants

Question

As I understand it, and constants static finalare built in at compile time when using Java.

Looking at Using Version-Aware Component - add switching logic and usage Build.VERSION.SDK_INTand it Build.VERSION_CODESbothers me as if both constant values are built in at compile time, this approach would be useless. What am I missing here?

Thank:)

EDIT: Does the fact that they are in a static method in an abstract class change this compile-time insertion?

+5

Dori Sep 7 '12 at 16:13

1 answer

assylias · Accepted Answer · 2012-09-07T16:23:11+0000

What is inlined are constants that can be determined at compile time, for example:

private final int CONST = 1;

( , , ), :

public static final String SDK = getString("ro.build.version.sdk");

getString:

private static String getString(String property) {
    return SystemProperties.get(property, UNKNOWN);
}

, .