BottomNavigationView和Tablayout(3)

在上一篇的单个fragment中添加tablayout

<LinearLayout 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"
    android:orientation="vertical"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:context=".BlankFragment1">

        <com.google.android.material.tabs.TabLayout
            android:id="@+id/tablayout1"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:background="@android:color/white"
            app:tabIndicatorColor="@android:color/darker_gray"
            app:layout_constraintTop_toTopOf="parent"
            app:tabIndicatorHeight="1dp"
            app:tabSelectedTextColor="@android:color/darker_gray" />

    <androidx.viewpager.widget.ViewPager
        android:id="@+id/tab_viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintTop_toBottomOf="@+id/tablayout"
       />

    <!--
               app:tabMode="scrollable" 设置tabMode属性为可以滚动
               tabLayout.setTabMode(TabLayout.MODE_SCROLLABLE);
               tabIndicatorColor：菜单下方移动的横线的颜色
               tabSelectedTextColor ：菜单被选中之后的颜色
               tabTextColor : 菜单正常的颜色
               app:tabTextAppearance : 添加样式，这里加了样式主要是为了在文字前面加一个图所用，就是把textAllCaps设置成false
           -->
</LinearLayout>

 */
public class BlankFragment1 extends Fragment {

    private Unbinder unbind;
    private View view;
    public BlankFragment1() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment


//        解决点击“我的”回来方法二，首页空白的问题，推荐的方法
        if (view != null) {
           unbind = ButterKnife.bind( this, view );//必须加，不然报ButterKnife的异常
            ViewGroup parent = (ViewGroup) view.getParent();
            if (parent != null) {
                parent.removeView(view);
            }
            return view;
        }

         view = inflater.inflate( R.layout.fragment_blank_fragment1, container, false );

       unbind = ButterKnife.bind(this, view);//这里也得有，不然报ButterKnife的异常

        initView(view);
        return view;
    }
    private void initView(View view) {
        ViewPager tabViewpager = view.findViewById( R.id.tab_viewpager );
        TabLayout tablayout = view.findViewById( R.id.tablayout1 );
//        tablayout.removeAllTabs();
//        tabViewpager.removeAllViews();
        tabViewpager.setAdapter( new ViewPagerAdapter2( getFragmentManager() ) );
        tablayout.setupWithViewPager(tabViewpager);

    }
}