选项卡

布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main"
    android:layout_width="match_parent" android:layout_height="match_parent"
    tools:context="com.example.myshishangyuan.MainActivity">

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

</android.support.v4.view.ViewPager>
    <RadioGroup
        android:id="@+id/rg"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:gravity="center"
        android:layout_alignParentBottom="true">
        <RadioButton
            android:drawableTop="@drawable/yi"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center"
            android:button="@null"
            android:text="新品"
            android:textSize="15dp"/>
        <RadioButton
            android:drawableTop="@drawable/er"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center"
            android:button="@null"
            android:text="精选"
            android:textSize="15dp"/>
        <RadioButton
            android:drawableTop="@drawable/san"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center"
            android:button="@null"
            android:text="分类"
            android:textSize="15dp"/>
        <RadioButton
            android:drawableTop="@drawable/si"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center"
            android:button="@null"
            android:text="我的衣柜"
            android:textSize="15dp"/>
        <RadioButton
            android:drawableTop="@drawable/wu"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center"
            android:button="@null"
            android:text="个人中心"
            android:textSize="15dp"/>

    </RadioGroup>


</RelativeLayout>

Activity:

public class MainActivity extends AppCompatActivity {
    private FragmentManager fm;
    private ArrayList<Fragment> list;
    private ViewPager vp;
    private RadioGroup rg;
    private RadioButton[] rbt;
    private MyFragment myFragment;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        vp = (ViewPager) findViewById(R.id.vp);
        rg = (RadioGroup) findViewById(R.id.rg);
        rbt=new RadioButton[rg.getChildCount()];
        
        for (int i = 0; i <rbt.length ; i++) {
            rbt[i]= (RadioButton) rg.getChildAt(i);
        }
        rbt[0].setChecked(true);


         list = new ArrayList<>();
        Fragment_xp fragment_xp = new Fragment_xp();
        Fragment_jx fragment_jx = new Fragment_jx();
        Fragment_fl fragment_fl = new Fragment_fl();
        Fragment_wdyg fragment_wdyg = new Fragment_wdyg();
        Fragment_grzx fragment_grzx = new Fragment_grzx();

        list.add(fragment_xp);
        list.add(fragment_jx);
        list.add(fragment_fl);
        list.add(fragment_wdyg);
        list.add(fragment_grzx);
         fm = getSupportFragmentManager();
        myFragment = new MyFragment(fm, list);
        vp.setAdapter(myFragment);
        vp.setCurrentItem(0);
        rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup radioGroup, int i) {
                for (int j = 0; j <rbt.length ; j++) {
                    if (rbt[j].getId()==i){
                        vp.setCurrentItem(j);
                    }
                }
            }
        });

    }

}