java - 无法在我的 Activity 中调用类(class)

我有这个课：

public class SayingsHolder extends Application{

    ArrayList<String> SayingsList = new ArrayList<String>(){{
        SayingsList.add("1");
        SayingsList.add("2");

    }};

    public ArrayList<String> getSayingsList() {
        return SayingsList;
    }


}

现在，我尝试通过以下方式在活动的ScreenSlidePagerAdapter中调用它：

private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
    String[] displayText;

    final SayingsHolder holder = (SayingsHolder).getApplication();

    String names[] = {"1","2","3"};
    public ScreenSlidePagerAdapter(FragmentManager fm,String[] displayText) {
        super(fm);
        this.displayText=displayText;
    }

    @Override
    public Fragment getItem(int position) {
        System.out.println(position);
        ScreenSlidePageFragment fragment = new ScreenSlidePageFragment();
        fragment.setText(names[position]);
        return fragment;
    }

    @Override
    public int getCount() {
        return NUM_PAGES;
    }
}

但这给了我这个错误：

SayingsHolder cannot be resolved to a variable

我在这里想念什么？我知道我指的是错误的课堂，但是我找不到解决它的方法。有人可以给我一个小提示吗？

最佳答案

尝试这个

final SayingsHolder holder = (SayingsHolder).getApplication();

至

final SayingsHolder holder = (SayingsHolder)getApplication();