TabLayout和ViewPager-在滑动抽屉项目之间滑动后,单击选项卡不起作用。
我在具有滑动抽屉和Tablayout的应用程序上工作。我将本教程用于“滑动抽屉”和“ TabLayout”。
内滑抽屉
TabLayout(Tabs(Today,Monthly,Yearly))
我在滑动抽屉和Tablayout之间有问题。首次Viewpager正确加载。但是当我移到下一个抽屉项(如“设置片段”)之后,回到TaskList选项卡时,片段viewpager无法加载任何片段,而在滑动该传呼器时却加载了几个片段。
这里的Java代码
public class TaskListFragment extends Fragment {
private Toolbar toolbar;
private TabLayout tabLayout;
private ViewPager viewPager;
public TaskListFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_my_page, container, false);
viewPager = (ViewPager)rootView.findViewById(R.id.viewpager);
tabLayout = (TabLayout)rootView.findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
// Inflate the layout for this fragment
return rootView;
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getFragmentManager());
adapter.addFragment(new Mypage_TodayFragment(), "TODAY");
adapter.addFragment(new Mypage_TodayFragment(), "WEEKLY");
adapter.addFragment(new Mypage_TodayFragment(), "MONTHLY");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
@Override
public void onDetach() {
super.onDetach();
}
这里.XML代码
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="262dp"
android:id="@+id/view"
android:layout_weight="0.16">
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app:tabGravity="fill"
app:tabBackground="@drawable/mytabselector"
app:tabIndicatorColor="@color/Orange" />
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>
提前致谢!!
试试这个代替
ViewPagerAdapter adapter = new ViewPagerAdapter(getFragmentManager());
做
ViewPagerAdapter adapter = new ViewPagerAdapter(getChildFragmentManager());
这是因为由于片段中有一个viewpager,所以该viewpager应该用于进行片段事务的片段管理器应该是childfragmentmanager
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我来说两句