不知道为什么点击Fragment不跳转啊，各位大大帮忙看看吧，感谢！

MainActivity.java的代码

package com.example.baymax.ui.activity;

import android.os.Bundle;
import android.view.MenuItem;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;

import com.example.baymax.R;
import com.example.baymax.base.BaseFragment;
import com.example.baymax.ui.fragment.HomeFragment;
import com.example.baymax.ui.fragment.ListFragment;
import com.example.baymax.ui.fragment.MineFragment;
import com.example.baymax.utils.LogUtils;
import com.google.android.material.bottomnavigation.BottomNavigationView;

import butterknife.BindView;
import butterknife.ButterKnife;

public class MainActivity extends AppCompatActivity {

//    private static final String TAG = "MainActivity";
    @BindView(R.id.main_navigation_bar)
    public BottomNavigationView mNavigationView;
    private HomeFragment mHomeFragment;
    private ListFragment mListFragment;
    private MineFragment mMineFragment;
    private FragmentManager mFm;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
//        initView();
        initFragments();
        initListener();

    }

    private void initFragments() {
        //ctrl+alt+f
        mHomeFragment = new HomeFragment();
        mListFragment = new ListFragment();
        mMineFragment = new MineFragment();
        mFm = getSupportFragmentManager();
        switchFragment(mHomeFragment);
    }


    private void initListener() {
        mNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem item) {
                //Log.d(TAG,"title --> " + item.getTitle() + " id --> " +item.getItemId());
                if(item.getItemId()==R.id.home){
                    LogUtils.d(MainActivity.class, "切换到首页");
                    switchFragment(mHomeFragment);
                }else if (item.getItemId() == R.id.list){
                    LogUtils.i(MainActivity.class, "切换到订单");
                    switchFragment(mListFragment);
                }else if (item.getItemId() == R.id.mine){
                    LogUtils.w(MainActivity.class, "切换到我的");
                    switchFragment(mMineFragment);
                }
                return true;
            }
        });
    }

    private void switchFragment(BaseFragment targetFragment) {
        FragmentTransaction fragmentTransaction = mFm.beginTransaction();
        fragmentTransaction.replace(R.id.main_page_container,targetFragment);
        fragmentTransaction.commit();
    }


//    private void initView() {
//        HomeFragment homeFragment = new HomeFragment();
//        FragmentManager fm = getSupportFragmentManager();
//        FragmentTransaction transaction = fm.beginTransaction();
//        transaction.add(R.id.main_page_container,homeFragment);
//        transaction.commit();
//    }
}

LogUtils.java的代码

package com.example.baymax.utils;

import android.util.Log;

public class LogUtils {
    private static int currentLev = 3;
    private static final int DEBUG_LEV = 3;
    private static final int INFO_LEV = 2;
    private static final int WARNING_LEV = 1;
//    private static int errorLev = 1;

    public static void d(Class clazz,String log) {
         if (currentLev >= DEBUG_LEV) {
             Log.d(clazz.getSimpleName(),log);
         }
    }
    public static void i(Class clazz,String log) {
        if (currentLev >= INFO_LEV) {
            Log.i(clazz.getSimpleName(),log);
        }

    }
    public static void w(Class clazz,String log) {
        if (currentLev >= WARNING_LEV) {
            Log.w(clazz.getSimpleName(),log);
        }

    }
//    public static void e(Class clazz,String log) {
//        if (currentLev >= errorLev) {
//            Log.e(clazz.getSimpleName(),log);
//        }
//
//    }
}

隐约觉得LogUtils创建的有问题