如何在片段中加载tabhost [英] how to load tabhost in a fragment

问题描述

大家好.请想知道如何在片段中构建tabhost.我希望具有以下层次结构:导航抽屉->片段，然后在片段中加载tabhost.如果有人可以帮助我，我在等待

helle everyone. please Iwant to know how to build tabhost in a fragment. I want to have the following hierarchy: naviagation drawer -> fragment and in the fragment I load the tabhost. if anyone can help me I waiting please

推荐答案

您可以这样做.

您应该使用TabLayout而不是TabHost.

You should use TabLayout instead of TabHost.

将Xml标记为包含Tabs的主片段.

Make Xml for main fragment which content Tabs.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">

<android.support.design.widget.TabLayout
    android:id="@+id/tabs"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:tabGravity="fill"
    app:tabMode="fixed" />

<android.support.v4.view.ViewPager
    android:id="@+id/viewpager"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1" />

</LinearLayout>

然后按如下所示制作代码:

Then Make Code like below:

public class TabsFragment extends Fragment {

View view;
PagerAdapter adapter;

private void setupViewPager(ViewPager viewPager) {

///Here we have to pass ChildFragmentManager instead of FragmentManager.
      adapter = new PagerAdapter(getChildFragmentManager());
        adapter.addFragment(new Fragment1(), "Fragment1");
        adapter.addFragment(new Fragment2(), "Fragment2");
        viewPager.setAdapter(adapter);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.f_tabslayout, container, false);
        super.onCreate(savedInstanceState);

        final ViewPager viewPager = (ViewPager)view.findViewById(R.id.viewpager);
        setupViewPager(viewPager);
        TabLayout tabLayout = (TabLayout)view.findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);
        return view;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();

    }

    static class PagerAdapter extends FragmentPagerAdapter {
        private final List<Fragment> mFragments = new ArrayList<>();
        private final List<String> mFragmentTitles = new ArrayList<>();

        public Adapter(android.support.v4.app.FragmentManager fm) {
            super(fm);
        }

        public void addFragment(Fragment fragment, String title) {
            mFragments.add(fragment);
            mFragmentTitles.add(title);
        }

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

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

        @Override
        public CharSequence getPageTitle(int position) {
            return mFragmentTitles.get(position);
        }
    }
}

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