java - Android，无法使静态 getter setter 属性起作用吗？

Question

我正在尝试这个...

public class Info {
    private static Info ourInstance = new Info();
    public static Info getInstance() { return ourInstance; }

    private static int currentIndex;

    public static void setCurrentIndex(int i) {
        Log.d("DEV", "setter!");
        currentIndex = i;
        // do other work here
    }

    public static int getCurrentIndex() {
        Log.d("DEV", "getter!");
        return currentIndex;
    }

    private Info() {
        Log.d("DEV", "class initialized no problem...");
        currentIndex = 42; // just doesn't work, only sets the field
    }

}

在任何其他类中...

Info.currentIndex = 666; // just doesn't work

它根本不起作用 - 可能是什么问题？什么都试过了。

Answer 1

如果你最终要这样做，为什么还要定义 setter/getter？

Info.currentIndex = 666;

如果是，则将currentIndex 可见性更改为公开...

或者更好的是，与代码保持一致

Info.setCurrentIndex(666);