我正在尝试创建一个标签布局，其中三个标签分别显示图像和文本。不幸的是，这些选项卡不显示任何内容，而且我在Logcat上也找不到关于错误的任何内容。
这是我的主要代码：
public class JavaTradHouse extends AppCompatactivity {
private TabLayout tabLayout;
private ViewPager viewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_java_trad_house);
tabLayout = (TabLayout) findViewById(R.id.tabLayout);
viewPager = (ViewPager) findViewById(R.id.viewpagertradHouses);
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.AddFragment(new FragmentJoglo(),"Joglo Traditional House");
adapter.AddFragment(new FragmentSukuTengger(),"Suku Tengger Traditional House");
adapter.AddFragment(new FragmentTogogAnjing(),"Togog Anjing Traditional House");
viewPager.setadapter(adapter);
tabLayout.setupWithViewPager(viewPager);
}
}
这是我的ViewPager适配器类代码：
public class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> fragmentList = new ArrayList<>();
private final List<String> fragmentListTitles = new ArrayList<>();
public ViewPagerAdapter(@NonNull FragmentManager fm) {
super(fm);
}
@Nullable
@Override
public CharSequence getPageTitle(int position) {
return fragmentListTitles.get(position);
}
@NonNull
@Override
public Fragment getItem(int position) {
return fragmentList.get(position);
/* switch (position)
{
case 1 :
FragmentJoglo joglofragment = new FragmentJoglo();
return joglofragment;
case 2 :
FragmentSukuTengger sukutenggerfragment = new FragmentSukuTengger();
return sukutenggerfragment;
case 3 :
FragmentTogogAnjing togoganjingfragment = new FragmentTogogAnjing();
return togoganjingfragment;
default :
return null;
}*/ // Turning this one into a comment in case this method works
}
@Override
public int getcount() {
return fragmentList.size();
}
public void AddFragment(Fragment fragment,String Title){
fragmentList.add(fragment);
fragmentListTitles.add(Title);
}
}
我对标签布局并不陌生，原因是来自我所在国家/地区的参考文献很少，而且没有深入地讨论它。我在这里能做什么？如前所述，logcat不会显示任何内容，因为它成功执行了程序。
任何帮助将不胜感激。