TableLayout+ViewPager案例

1 添加依赖
implementation ‘androidx.viewpager2:viewpager2:1.0.0-alpha02’
implementation ‘com.androidkun:XTabLayout:1.1.4’

2 在.xml中分别加入Tablelayout和ViewPager
3 在.java中分别指定布局和ViewPager的引用
4 通过事件关联TableLayout和ViewPager

MainActivity.java

package com.example.myapplication;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import androidx.viewpager2.adapter.FragmentStateAdapter;
import androidx.viewpager2.widget.ViewPager2;

import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import com.androidkun.xtablayout.XTabLayout;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
//XTabLayout
    XTabLayout tab;
    ViewPager2 pagers;
    List<Fragment> list = new ArrayList<>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //XTabLayout的操作
        //1.找到XTablayout
        tab = findViewById(R.id.tab);

        //2.动态添加内容(财经,军事,科技,视频,体育)
        //a. 实例化导航块
        XTabLayout.Tab t1 = tab.newTab();
        //b.设置名字
        t1.setText("财经");
        //c.添加
        tab.addTab(t1);

        tab.addTab(tab.newTab().setText("军事"));
        tab.addTab(tab.newTab().setText("科技"));
        tab.addTab(tab.newTab().setText("视频"));
        tab.addTab(tab.newTab().setText("体育"));
        //3.设置切换效果
        tab.setOnTabSelectedListener(new XTabLayout.OnTabSelectedListener() {
            //当前选中的Tab
            @Override
            public void onTabSelected(XTabLayout.Tab tab) {
                //获取当前导航卡的位置及文本
                int position = tab.getPosition();
           //     String text = tab.getText().toString();
            //    Toast.makeText(MainActivity.this,position+"---"+text,Toast.LENGTH_SHORT).show();
                  pagers.setCurrentItem(position);
            }
            //Tab没被选中的方法
            @Override
            public void onTabUnselected(XTabLayout.Tab tab) {

            }
            //Tab被重新选中的方法
            @Override
            public void onTabReselected(XTabLayout.Tab tab) {

            }
        });

        pagers =findViewById(R.id.pagers);
        //添加Fragment
        list.add(new Fragment1());
        list.add(new Fragment2());
        list.add(new Fragment3());
        list.add(new Fragment4());
        list.add(new Fragment5());
        pagers.setAdapter(new FragmentStateAdapter(getSupportFragmentManager()) {
            @NonNull
            @Override
            public Fragment getItem(int position) {
                return list.get(position);
            }


            //设置长度
            @Override
            public int getItemCount() {
                return list.size();
            }
        });

        //开始联动
     pagers.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
            @Override
            public void onPageSelected(int position) {
                super.onPageSelected(position);
                tab.getTabAt(position).select(); //设置指定位置上的导航块被选中
            }
        });
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <com.androidkun.xtablayout.XTabLayout
        android:id="@+id/tab"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:xTabTextColor="#ccc"
        app:xTabTextSize="15sp"
        app:xTabSelectedTextColor="#ff0000"
        app:xTabSelectedTextSize="20sp"
        ></com.androidkun.xtablayout.XTabLayout>

    <androidx.viewpager2.widget.ViewPager2
        android:id="@+id/pagers"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"></androidx.viewpager2.widget.ViewPager2>

</LinearLayout>

Fragment1.java 2~5类似

package com.example.myapplication;

import android.content.Context;
import android.net.Uri;
import android.os.Bundle;

import androidx.fragment.app.Fragment;

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



public class Fragment1 extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_fragment1, container, false);
    }

}

fragment_fragment1.xml 其余2~5代码类似

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Fragment1">

<!-- TODO: Update blank fragment layout -->
<TextView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:text="财经" />

</FrameLayout>