TabLayout+ViewPager的基本使用

final List<String> list=new ArrayList<>();
list.add("推薦");
list.add("課程");
list.add("實戰");
list.add("職業路徑");
vp.setOffscreenPageLimit(list.size());
vp.setAdapter(new FragmentPagerAdapter(getChildFragmentManager()) {
    @Override
    public CharSequence getPageTitle(int position) {
        return list.get(position);
    }

    @Override
    public Fragment getItem(int position) {
        FragmentXianq fragmentXianq = new FragmentXianq();
        Bundle bundle=new Bundle();
        bundle.putString("name",list.get(position));
        fragmentXianq.setArguments(bundle);
        return fragmentXianq;
    }

    @Override
    public int getCount() {
        return list.size();
    }
});
tab.setupWithViewPager(vp);
//xml如果在fragment當中的時候還得再在根佈局中加xmlns:app="http://schemas.android.com/apk/res-auto"

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

    android:layout_height="0dp"
    android:layout_weight="1"></android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
    android:id="@+id/vp"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="9"></android.support.v4.view.ViewPager>