Java TabLayout中的选项卡（Android支持设计）不'；膨胀内容物

我有一个来自android设计支持库的

表格布局

：

编译'com.android.support:design:23.0.1'

有了这个，我想填充我的选项卡。但我没能做到。我可以创建选项卡，但它们无法膨胀各自的内容：

如果它应该具有来自

LinearListView

的条目，则类似于从此框架导入的

列表视图的对象：

编译com.github.frankiesardo:linearlistview:1.0。1@aar“

我尝试了大量的示例，但未能填充每个选项卡。有什么建议吗

代码：

JAVA:
从主要片段：

OverviewTabLayoutPagerAdapter adapter = new OverviewTabLayoutPagerAdapter(getActivity().getSupportFragmentManager(), productDataContent, getContext());
        ViewPager viewPager = (ViewPager) view.findViewById(R.id.viewpager);
        viewPager.setAdapter(adapter);
        TabLayout tabLayout = (TabLayout) view.findViewById(R.id.tablayout);
        tabLayout.setupWithViewPager(viewPager);

public class OverviewTab*Fragment extends Fragment {

    public static final String ARG_PAGE = "ARG_PAGE";
    public static final String PRODUCT_DATA_CONTENT = "PRODUCT_DATA_CONTENT";

    private int mPage;
    private SearchContent productDataContent;

    public static OverviewTab*Fragment newInstance(int page, SearchContent productDataContent) {
        OverviewTab*Fragment fragment = new OverviewTab*Fragment();
        Bundle args = new Bundle();
        args.putInt(ARG_PAGE, page);
        args.putSerializable(PRODUCT_DATA_CONTENT, productDataContent);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mPage = getArguments().getInt(ARG_PAGE);
        productDataContent = (SearchContent) getArguments().getSerializable(PRODUCT_DATA_CONTENT);
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.overview_tab_fragment, container, false);
        LinearListView tabContentListView = (LinearListView) view.findViewById(R.id.product_content_linear_list_view);

        populateOverviewTab*LinearLayout(tabContentListView, productDataContent);

        return view;
    }

    private void populateOverviewTab*LinearLayout(LinearListView tabContentListView, SearchContent productDataContent) {
        ArrayList<> productData = productDataContent.getContent();

        OverviewTab*ArrayAdapter overviewTab*ArrayAdapter = new OverviewVideosArrayAdapter(
                getContext(),
                tabContentListView,
                productData,
                getActivity()
        );

        tabContentListView.setAdapter(overviewTab*ArrayAdapter);
    ...

...
<LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@id/go_to_store_button"
                android:orientation="vertical">

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

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

            </LinearLayout>
    ...

概览可显示输出管理器适配器：

public class OverviewTabLayoutPagerAdapter extends FragmentPagerAdapter {

    final int PAGE_COUNT = 3;

    private String tabTitles[] = new String[] { "REVIEWS", "VIDEOS", "DEALS" };
    private SearchContent productDataContent;
    private Context context;

    public OverviewTabLayoutPagerAdapter(FragmentManager fm, SearchContent productDataContent, Context context) {
        super(fm);
        this.productDataContent = productDataContent;
        this.context = context;
    }

    @Override
    public int getCount() {
        return PAGE_COUNT;
    }

    @Override
    public Fragment getItem(int position) {
        Log.i("TAB_POSITION", String.valueOf(position));

        if (position == 0) {
            return OverviewTab1Fragment.newInstance(position, productDataContent);
        } else if (position == 1) {
            return OverviewTab2Fragment.newInstance(position, productDataContent);
        } else if (position == 2) {
            return OverviewTab3Fragment.newInstance(position, productDataContent);
        }

        return OverviewTab1Fragment.newInstance(position, productDataContent);
    }

    @Override
    public CharSequence getPageTitle(int position) {
        // Generate title based on item position
        return tabTitles[position];
    }

OverviewTab*片段：（该*表示相同的代码结构适用于每个片段）：

公共类概览选项卡*片段扩展片段{
公共静态最终字符串ARG\u PAGE=“ARG\u PAGE”；
公共静态最终字符串PRODUCT\u DATA\u CONTENT=“PRODUCT\u DATA\u CONTENT”；
私人公寓；
私有搜索内容productDataContent；
公共静态概览选项卡*片段newInstance（int页，SearchContent productDataContent）{
概览选项卡*片段片段=新建概览选项卡*片段（）；
Bundle args=新Bundle（）；
args.putInt（ARG_页，第页）；
args.putSerializable（产品数据内容，产品数据内容）；
fragment.setArguments（args）；
返回片段；
}
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
mPage=getArguments（）.getInt（ARG_页）；
productDataContent=（SearchContent）getArguments（）.getSerializable（产品数据内容）；
}
@可空
@凌驾
创建视图上的公共视图（布局、充气机、视图组容器、，
Bundle savedInstanceState）{
视图=充气机。充气（R.layout.overview\u tab\u碎片，容器，错误）；
LinearListView选项卡ContentListView=（LinearListView）view.findViewById（R.id.product\u content\u linear\u list\u view）；
填充概览选项卡*线性布局（tabContentListView，productDataContent）；
返回视图；
}
私有void populateOverview选项卡*LinearLayout（LinearListView选项卡ContentListView，SearchContent productDataContent）{
ArrayList productData=productDataContent.getContent（）；
概览选项卡*阵列适配器概览选项卡*阵列适配器=新概览视频阵列适配器(
getContext（），
选项卡ContentListView，
产品数据，
getActivity（）
);
tabContentListView.setAdapter（概览选项卡*ArrayAdapter）；
...

XML:
从主要片段：

OverviewTabLayoutPagerAdapter adapter = new OverviewTabLayoutPagerAdapter(getActivity().getSupportFragmentManager(), productDataContent, getContext());
        ViewPager viewPager = (ViewPager) view.findViewById(R.id.viewpager);
        viewPager.setAdapter(adapter);
        TabLayout tabLayout = (TabLayout) view.findViewById(R.id.tablayout);
        tabLayout.setupWithViewPager(viewPager);

public class OverviewTab*Fragment extends Fragment {

    public static final String ARG_PAGE = "ARG_PAGE";
    public static final String PRODUCT_DATA_CONTENT = "PRODUCT_DATA_CONTENT";

    private int mPage;
    private SearchContent productDataContent;

    public static OverviewTab*Fragment newInstance(int page, SearchContent productDataContent) {
        OverviewTab*Fragment fragment = new OverviewTab*Fragment();
        Bundle args = new Bundle();
        args.putInt(ARG_PAGE, page);
        args.putSerializable(PRODUCT_DATA_CONTENT, productDataContent);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mPage = getArguments().getInt(ARG_PAGE);
        productDataContent = (SearchContent) getArguments().getSerializable(PRODUCT_DATA_CONTENT);
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.overview_tab_fragment, container, false);
        LinearListView tabContentListView = (LinearListView) view.findViewById(R.id.product_content_linear_list_view);

        populateOverviewTab*LinearLayout(tabContentListView, productDataContent);

        return view;
    }

    private void populateOverviewTab*LinearLayout(LinearListView tabContentListView, SearchContent productDataContent) {
        ArrayList<> productData = productDataContent.getContent();

        OverviewTab*ArrayAdapter overviewTab*ArrayAdapter = new OverviewVideosArrayAdapter(
                getContext(),
                tabContentListView,
                productData,
                getActivity()
        );

        tabContentListView.setAdapter(overviewTab*ArrayAdapter);
    ...

...
<LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@id/go_to_store_button"
                android:orientation="vertical">

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

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

            </LinearLayout>
    ...

。。。
...

概述\u选项卡\u fragment.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.linearlistview.LinearListView
        android:id="@+id/product_content_linear_list_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:showDividers="end"
        android:dividerPadding="5dp"
        app:dividerThickness="2dp">
    </com.linearlistview.LinearListView>

</RelativeLayout>

您可以更改：

@Override
    public Fragment getItem(int position) {
        Log.i("TAB_POSITION", String.valueOf(position));

    if (position == 0) {
        return OverviewTab1Fragment.newInstance(position, productDataContent);
    } else if (position == 1) {
        return OverviewTab2Fragment.newInstance(position, productDataContent);
    } else if (position == 2) {
        return OverviewTab3Fragment.newInstance(position, productDataContent);
    }

    return OverviewTab1Fragment.newInstance(position, productDataContent);
}

为此：

@Override
    public Fragment getItem(int position) {
        Log.i("TAB_POSITION", String.valueOf(position));

    if (position == 0) {
        return OverviewTab1Fragment.instantiate(context, productDataContent);
    } else if (position == 1) {
        return OverviewTab2Fragment.instantiate(context, productDataContent);
    } else if (position == 2) {
        return OverviewTab3Fragment.instantiate(context, productDataContent);
    }

    return OverviewTab1Fragment.instantiate(context, productDataContent);
}

更新

这是一个数组中包含片段的示例：

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.util.SparseArray;
import android.view.ViewGroup;

public class TabsViewPagerAdapter extends FragmentStatePagerAdapter {
    private CharSequence titlesArray[]; // This will Store the Titles of the Tabs which are Going to be passed when TabsViewPagerAdapter is created
    private Fragment tabsArray[];
    private SparseArray<Fragment> registeredFragments;

    // Build a Constructor and assign the passed Values to appropriate values in the class
    public TabsViewPagerAdapter(FragmentManager fm, CharSequence titlesArray[], Fragment[] tabsArray) {
        super(fm);

        this.titlesArray = titlesArray;
        this.tabsArray = tabsArray;
        this.registeredFragments = new SparseArray<>();
    }

    //This method return the fragment for the every position in the View Pager
    @Override
    public Fragment getItem(int position) {
        return tabsArray[position];
    }

    // This method return the titles for the Tabs in the Tab Strip
    @Override
    public CharSequence getPageTitle(int position) {
        return titlesArray[position];
    }

    // This method return the Number of tabs for the tabs Strip
    @Override
    public int getCount() {
        return titlesArray.length;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        Fragment fragment = (Fragment) super.instantiateItem(container, position);
        registeredFragments.put(position, fragment);

        return fragment;
    }

    public Fragment getRegisteredFragment(int position) {
        return registeredFragments.get(position);
    }
}

片段是这样的：

import android.support.v4.app.Fragment;

public class OverviewTab1Fragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.yourFragmentLayout, container, false);

        return v;
    }
}

---

希望能对您有所帮助。

不幸的是，它引发了一个异常：

android.support.v4.app.Fragment$InstantiationException:无法实例化片段概览Tab1Fragment:确保类名存在，是公共的，并且有一个公共的空构造函数。

。尽管我插入的参数是正确的，包括是第二个参数。有什么猜测或解决方法吗？将概览选项卡1片段更改为片段。我得到了相同的异常：（嗯，我在回答中做了一个更新，这是适配器中另一种方式的实现。我不再有例外，但没有任何膨胀的内容。我尝试为每个选项卡和其他容器（如

ListView

）创建布局，但仍然没有成功。我是否可以提供更多代码来达成解决方案？