TabLayout

最新推荐文章于 2025-05-13 16:59:38 发布

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最新推荐文章于 2025-05-13 16:59:38 发布

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本文链接：https://blog.youkuaiyun.com/qq_41992168/article/details/81158082

本文介绍了一种使用Android Support Library中的TabLayout和ViewPager组件实现动态Tab切换的方法。通过具体的XML布局代码和Java代码示例，展示了如何设置TabLayout模式为可滚动，并通过自定义的适配器将不同的Fragment与ViewPager关联起来。

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需要依赖

implementation 'com.android.support:design:27.+'

//布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:orientation="horizontal"
        >
        <android.support.design.widget.TabLayout
            android:id="@+id/tb_layout"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="top"
            android:layout_weight="1"
            app:tabMode="scrollable"
            />
        

        <ImageView
                android:id="@+id/image_jia"
            android:layout_width="50dp"
            android:layout_height="match_parent"
           android:src="@drawable/ic_fanhui_24dp"
            />

    </LinearLayout>
    <com.bwei.adapter.MyViewPager
        android:id="@+id/my02view_pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>



</LinearLayout>

//java代码

package com.bwei.fragment;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import com.bwei.Xmu.Channel1Activity;
import com.bwei.Xmu.R;
import com.bwei.adapter.MyViewPager;
import com.bwei.adapter.MytabFragment;
import com.bwei.tabfragmnet.Fragment01;
import com.bwei.tabfragmnet.Fragment02;
import com.bwei.tabfragmnet.Fragment03;
import com.bwei.tabfragmnet.Fragment04;

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

/**
 * Created by Jack Lee on 2018/7/19.
 */

public class Fragment_dongtai extends Fragment {


    private TabLayout tb_layout;
    private ImageView image_jia;
    private MyViewPager my02view_pager;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View inflate = inflater.inflate(R.layout.layout_dongtai, container, false);

        initView(inflate);
        return inflate;


    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        //创建集合
        List<Fragment> list = new ArrayList<>();
        list.add(new Fragment02());
        list.add(new Fragment01());
        list.add(new Fragment03());
        list.add(new Fragment04());
        //tab_layout.setTabMode(TabLayout.MODE_SCROLLABLE);
        //创建适配器
        MytabFragment mytabFragment = new MytabFragment(getChildFragmentManager(), list);
        my02view_pager.setAdapter(mytabFragment);
        tb_layout.setupWithViewPager(my02view_pager);

        image_jia.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getActivity(),Channel1Activity.class);
                startActivity(intent);
            }
        });
    }


    private void initView(View inflate) {
        tb_layout = (TabLayout) inflate.findViewById(R.id.tb_layout);

        image_jia = (ImageView) inflate.findViewById(R.id.image_jia);

        my02view_pager = (MyViewPager) inflate.findViewById(R.id.my02view_pager);

    }
}

//Adapter

package com.bwei.adapter;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import java.util.List;

/**
 * Created by Jack Lee on 2018/7/25.
 * name:Juck Lee
 */

public class MytabFragment extends FragmentPagerAdapter {

    private List<Fragment> list;
    private String[] title = {"ALL","Bll","Cll","DLL"};
    public MytabFragment(FragmentManager fm, List<Fragment> list) {
        super(fm);
        this.list = list;
    }

    @Override
    public Fragment getItem(int position) {
        return list.get(position);
    }

    @Override
    public int getCount() {
        return list.size();
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return title[position];
    }
}