Tablayout 横向滚动条的简单实现_tablelayout横向滚动条-优快云博客

该博客介绍了如何在Android中使用TabLayout和ViewPager实现横向滚动的选项卡。首先，添加必要的依赖库，然后创建一个包含TabLayout和ViewPager的布局。在MainActivity中设置数据源并关联TabLayout与ViewPager。每个选项卡对应一个Fragment，通过FragmentPagerAdapter管理。最后，自定义Adapter以提供选项卡标题和对应的Fragment实例。

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//导入依赖库

package com.example.tablayout;

import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

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

public class MainActivity extends AppCompatActivity {
    private List<String> datas=new ArrayList<String>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TabLayout tabLayout= (TabLayout) findViewById(R.id.tas);
        ViewPager viewPager= (ViewPager) findViewById(R.id.vp);

        datas.add("推荐");
        datas.add("要闻");
        datas.add("娱乐");
        datas.add("科技");
        datas.add("汽车");
        datas.add("体育");
        datas.add("图片");
        datas.add("动漫");
        datas.add("社会");
        datas.add("游戏");

        viewPager.setAdapter(new MyAdapter(getSupportFragmentManager()));

        //进行关联
        tabLayout.setupWithViewPager(viewPager);
    }

    class MyAdapter extends FragmentPagerAdapter {

        //带参的构造方法
        public MyAdapter(FragmentManager fm) {
            super(fm);
        }

        //返回选项卡的文本 ，，，添加选项卡
        @Override
        public CharSequence getPageTitle(int position) {
            return datas.get(position);
        }

       @Override
public Fragment getItem(int position) {
    Fragment f = null;
    switch (position){
        case 0:f = new TjFragment();//动态
            break;
        case 1:f = new KcFragment();//热门
            break;
        case 2:f = new SzFragment();//发现
            break;
        case 3:f = new ZyFragment();//
            break;
    }

    return f;
}
        @Override        public int getCount() {            return datas.size();//返回选项卡的数量        }    }}

//布局

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    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="com.example.tablayout.MainActivity">


    <android.support.design.widget.TabLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:id="@+id/tas"
        app:tabGravity="center"
        app:tabIndicatorColor="@color/colorAccent"
        app:tabMode="scrollable"
        app:tabSelectedTextColor="@color/colorPrimaryDark"
        app:tabTextColor="@color/colorPrimary"
        ></android.support.design.widget.TabLayout>

    <android.support.v4.view.ViewPager
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/vp"
        android:layout_below="@+id/tas"
        ></android.support.v4.view.ViewPager>

</android.support.constraint.ConstraintLayout>

//fragment的传值

public class ContentFragment extends Fragment{

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view=View.inflate(getActivity(),R.layout.content,null);
        TextView textView= (TextView) view.findViewById(R.id.tv);

        Bundle bundle=getArguments();
        textView.setText(bundle.getString("key"));


        return view;
    }