如何取消初始化警告

Question

Is there a way to suppress initialization due to coding conventions? For example line 17 has an initialization warning.

 public static class PlaceholderFragment extends Fragment {

    public PlaceholderFragment() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        ArrayList<String> EntryText;
        ArrayAdapter<String> listviewAdapter;
        View rootView;

        try {
            rootView = inflater.inflate(R.layout.fragment_main, container, false);
        }
        catch (Exception e) {
            Log.e("Sunshine Exception(onCreateView)", Integer.toString(Thread.currentThread().getStackTrace()[2].getLineNumber()), e);
        }
        return rootView;
    }
}

Answer 1

Set it to null explicitly so the compiler knows you know what you're doing.

View rootView = null;

This will at least get rid of your error.

Answer 2

这不是警告，它会在编译期间产生错误，因为您尝试读取局部变量rootView但是如果inflater.inflate抛出异常，它可能最终没有值。