<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="?attr/fullscreenBackgroundColor"
    android:theme="@style/ThemeOverlay.犀慕.FullscreenContainer"
    tools:context=".fragment.message.NotificationFullscreenFragment">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <androidx.cardview.widget.CardView
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:layout_marginBottom="20dp"
            android:layout_weight="0"
            app:cardBackgroundColor="#FFDDDDDD"
            app:cardCornerRadius="10dp"
            app:cardElevation="0dp">

            <com.google.android.material.tabs.TabLayout
                android:id="@+id/tabLayout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:tabTextAppearance="@style/tabTextAppearance">

                <com.google.android.material.tabs.TabItem
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="通知" />

                <com.google.android.material.tabs.TabItem
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="消息" />

                <com.google.android.material.tabs.TabItem
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="审核" />

            </com.google.android.material.tabs.TabLayout>

        </androidx.cardview.widget.CardView>

        <androidx.cardview.widget.CardView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:cardBackgroundColor="#EEEEEEEE"
            app:cardCornerRadius="10dp"
            app:cardElevation="0dp">

	        <androidx.fragment.app.FragmentContainerView
	            android:id="@+id/fragmentContainerViewTabItem"
	            android:name="cn.netkiller.student.fragment.message.NoticeFragment"
	            android:layout_width="match_parent"
	            android:layout_height="match_parent"
	            android:layout_weight="1"
	            android:fitsSystemWindows="true" />
     </androidx.cardview.widget.CardView>
    </LinearLayout>
</FrameLayout>
		
		

		
package cn.netkiller.student.fragment.message;

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 androidx.fragment.app.FragmentActivity;
import androidx.viewpager2.adapter.FragmentStateAdapter;

import com.google.android.material.tabs.TabLayout;
import com.google.android.material.tabs.TabLayoutMediator;

import java.util.List;

import cn.netkiller.student.databinding.FragmentNotificationFullscreenBinding;


public class NotificationFullscreenFragment extends Fragment {
    private static final String TAG = NotificationFullscreenFragment.class.getSimpleName();

    private FragmentNotificationFullscreenBinding binding;

    private static Fragment switchTabLayout(int position) {
        Fragment fragment = null;
        switch (position) {
            case 0:
                fragment = new NoticeFragment();
                break;
            case 1:
                fragment = new MessageFragment();
                break;
            case 2:
                fragment = new AuditFragment();
                break;
        }

        if (fragment != null) {
            return fragment;
            try {
                if (!isAdded()) return;
//                        requireActivity().getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainerViewTabItem, fragment).commit();
                getChildFragmentManager().beginTransaction().replace(R.id.fragmentContainerViewTabItem, fragment).commitAllowingStateLoss();
            } catch (Exception e) {
                Log.d(TAG, "Tab 切换出错" + e.getMessage());
            }
        }
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater,
                             @Nullable ViewGroup container,
                             @Nullable Bundle savedInstanceState) {

        binding = FragmentNotificationFullscreenBinding.inflate(inflater, container, false);
        return binding.getRoot();

    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        binding.tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            private final long interval = 1000L;
            private boolean isOnTabSelectedListener = false;
            private int index = 0;

            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                index = tab.getPosition();
                if (isOnTabSelectedListener) {
                    Log.e(TAG, "onTabSelected: 暴击 " + tab.getText() + " 位置: " + index);
                    return;
                } else {
                    new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
                        public void run() {
                            isOnTabSelectedListener = false;
                            switchTabLayout(index);
                            Log.e(TAG, "Tab 释放，并且切换最后一次点击位置: " + index);
                        }
                    }, interval);

                    isOnTabSelectedListener = true;
                }
                Log.d(TAG, "onTabSelected: " + tab.getText());
                switchTabLayout(tab.getPosition());
            }

            // 页面切换到其他
            @Override
            public void onTabUnselected(TabLayout.Tab tab) {
                Log.d(TAG, "onTabUnselected: " + tab.getText());
            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {
                Log.d(TAG, "onTabReselected: " + tab.getText());
            }
        });

    }

    @Override
    public void onResume() {
        super.onResume();
    }

    @Override
    public void onPause() {
        super.onPause();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        binding = null;
    }

}