Tablayout简单布局

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    主布局

<LinearLayout

    android:layout_width="match_parent"
    android:layout_height="wrap_content"
        android:orientation="vertical"
        >
    <android.support.design.widget.TabLayout
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:id="@+id/tablayout">
    </android.support.design.widget.TabLayout>

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

   </LinearLayout>

      main页面

mport android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.view.ViewPager;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

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

import wangjiao.baway.com.lianxiyuekao.tablelyaout.Fragment1;
import wangjiao.baway.com.lianxiyuekao.tablelyaout.Fragment2;
import wangjiao.baway.com.lianxiyuekao.tablelyaout.Fragment3;
import wangjiao.baway.com.lianxiyuekao.tablelyaout.Fragment4;

public class MainActivity2 extends AppCompatActivity {
    private ArrayList<Fragment> fragments;
    private FragmentAdapter adapter;
    private ViewPager viewPager;
    private TabLayout tablayout;
    Fragment1 one;
    Fragment2 two;
    Fragment3 three;
    Fragment4 four;
    FragmentManager fm;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        viewPager = (ViewPager) findViewById(R.id.viewpager);
        tablayout = (TabLayout) findViewById(R.id.tablayout);
        fragments = new ArrayList<Fragment>();
        one = new Fragment1();
        two = new Fragment2();
        three = new Fragment3();
        four = new Fragment4();
        fragments.add(one);
        fragments.add(two);
        fragments.add(three);
        fragments.add(four);
        adapter = new FragmentAdapter(getSupportFragmentManager(),fragments);
        viewPager.setAdapter(adapter);
        tablayout.setupWithViewPager(viewPager);

    }
}

FragmentAdapter.java


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

import java.util.List;

/**
 * Created by wangjiao on 2017/10/25.
 */

public class FragmentAdapter extends FragmentPagerAdapter {

    private String [] title = {"最新日报","专栏","热门","主题日报"};
    private List<Fragment> fragmentList;
    public FragmentAdapter(FragmentManager fm, List<Fragment> fragmentList) {
        super(fm);
        this.fragmentList = fragmentList;
    }
    @Override
    public Fragment getItem(int position) {
        return fragmentList.get(position);
    }
    @Override
    public int getCount() {
        return fragmentList.size();
    }
    @Override
    public CharSequence getPageTitle(int position) {
        return title[position];
    }
}

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