Android-表格布局标题不显示

我遇到了一个问题，不知道有谁能帮我解决！我一直在尝试在这里实现这种布局：

我的问题是现在没有显示列表标题。 这是我的MainActivity.java的代码

public class MainActivity extends AppCompatActivity implements OnItemSelectedListener, OnMapReadyCallback{

private MapboxMap mapboxMap;
private MapView mapView;
private TabLayout tabLayout;
private ViewPager viewPager;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    tabLayout = (TabLayout)findViewById(R.id.tablayout_id);
    viewPager = (ViewPager)findViewById(R.id.viewpager_id);

    tabLayout.setupWithViewPager(viewPager);

    //Creates the fragment (tab)
    ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
    adapter.addFragment(new FragmentFlood(),"Flood");
    adapter.addFragment(new FragmentWeather(), "Weather");
    adapter.addFragment(new FragmentAnalytics(),"Analytics");

    //pass view to view pager
    viewPager.setAdapter(adapter);

}

public class ViewPagerAdapter extends FragmentPagerAdapter{

private final List<Fragment> fragmentList = new ArrayList<>();
private final List<String> FragmentListTitles = new ArrayList<>();

public void addFragment(Fragment fragments, String titles){
    this.fragmentList.add(fragments);
    this.FragmentListTitles.add(titles);
    Log.d("fragments", "fragg");

}

public ViewPagerAdapter(FragmentManager fm) {
    super(fm);
}

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

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

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

public class FragmentFlood extends Fragment{
View view;


public FragmentFlood() {
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
    view=inflater.inflate(R.layout.flood_fragment,container,false);
    return view;
}
}

ViewPagerAdapter.java

public class MainActivity extends AppCompatActivity implements OnItemSelectedListener, OnMapReadyCallback{

private MapboxMap mapboxMap;
private MapView mapView;
private TabLayout tabLayout;
private ViewPager viewPager;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    tabLayout = (TabLayout)findViewById(R.id.tablayout_id);
    viewPager = (ViewPager)findViewById(R.id.viewpager_id);

    tabLayout.setupWithViewPager(viewPager);

    //Creates the fragment (tab)
    ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
    adapter.addFragment(new FragmentFlood(),"Flood");
    adapter.addFragment(new FragmentWeather(), "Weather");
    adapter.addFragment(new FragmentAnalytics(),"Analytics");

    //pass view to view pager
    viewPager.setAdapter(adapter);

}

public class ViewPagerAdapter extends FragmentPagerAdapter{

private final List<Fragment> fragmentList = new ArrayList<>();
private final List<String> FragmentListTitles = new ArrayList<>();

public void addFragment(Fragment fragments, String titles){
    this.fragmentList.add(fragments);
    this.FragmentListTitles.add(titles);
    Log.d("fragments", "fragg");

}

public ViewPagerAdapter(FragmentManager fm) {
    super(fm);
}

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

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

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

public class FragmentFlood extends Fragment{
View view;


public FragmentFlood() {
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
    view=inflater.inflate(R.layout.flood_fragment,container,false);
    return view;
}
}

---

没有logcat错误，一切似乎都很好。但是当我运行它时，TabLayout根本不显示任何内容？我在视图中也有MapBox，但我在这里发布的代码中使用了它。谁来帮帮我

将此添加到您的活动中

tabLayout.addTab(tabLayout.newTab().setText("Flood"));
tabLayout.addTab(tabLayout.newTab().setText("Weather"));
tabLayout.addTab(tabLayout.newTab().setText("Analytics"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);

---

将此添加到您的活动中

tabLayout.addTab(tabLayout.newTab().setText("Flood"));
tabLayout.addTab(tabLayout.newTab().setText("Weather"));
tabLayout.addTab(tabLayout.newTab().setText("Analytics"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);

---

我想你应该检查一下app:tabTextColor，然后换成不同的颜色，比如：黑色、白色<代码>应用程序：tabTextColor=“@android:color/black”

---

我认为你应该检查
应用程序：tabTextColor
并更改为不同的颜色，如：黑色、白色<代码>应用程序：tabTextColor=“@android:color/black”

viewPager.setAdapter（适配器）；
tabLayout.setupWithViewPager（viewPager）//<代码>viewPager.setAdapter（适配器）；
tabLayout.setupWithViewPager（viewPager）//
请试试这个

请试试这个。
不适合我。仍然给出一张空白的表格（你有其他解决方案吗？不适合我。仍然会给出一个空白的表格。：（你有其他解决方案吗？你可以对片段进行编码吗？我检查了上面的代码，它仍然显示。）titles@MeosCoder它不工作：（它只显示一个空白的白色表格。请帮助我：（所有3个标签都没有显示标题？你可以给我看屏幕截图吗？@MeosCoder这里它仍然不工作：（你可以给片段编码吗？我检查了上面的代码，它仍然显示。）titles@MeosCoder它不工作：（它只显示一个空白的白色表格。请帮助我：（所有3个选项卡均未显示标题？您可以显示屏幕截图吗？@MeosCoder此处它仍不工作：(