pocketcommunityclient/app/src/main/java/com/community/pocket/ui/BaseFragment.java

package com.community.pocket.ui;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import org.xutils.x;

/**
 * 封装初始化xutils逻辑
 */
public abstract class BaseFragment extends Fragment {
    @NonNull
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return x.view().inject(this, inflater, container);//fragment注解
    }

    //获取父级Fragment
    protected <T extends Fragment> T getParentFragment(int level) {
        return getParentFragment(level, null);
    }

    //获取父级Fragment
    @SuppressWarnings("unchecked")
    private <T extends Fragment> T getParentFragment(int level, Fragment fragment) {
        if (level-- > 0) {
            if (fragment == null) {
                fragment = getParentFragment();
            } else {
                fragment = fragment.getParentFragment();
            }
            return getParentFragment(level, fragment);
        } else {
            return (T) fragment;
        }
    }
}