ich ein TabLayout innen CardView zu machen versuchen, so etwas wie diese:TabLayout Innen CardView
TabLayout Innen CardView
aber beim Hinzufügen ViewPager Adapters stecken.
ich das Beispiel folgte dem TabLayout von this site. auf Herstellung
Da ich RecyclerView verwenden, habe ich die TabLayout und ViewPager in myViewHolder
public class MyViewHolder extends RecyclerView.ViewHolder {
TabLayout tabLayout;
public MyViewHolder(View itemView) {
super(itemView);
tabLayout = (TabLayout) itemView.findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText("TAB 1"));
tabLayout.addTab(tabLayout.newTab().setText("TAB 2"));
tabLayout.addTab(tabLayout.newTab().setText("TAB 3"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = (ViewPager) itemView.findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter
(getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
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) {
}
});
}
}
Aber ich 'lösen Methode kann nicht' auf getSupportFragmentManager.
Dies ist die PagerAdapter-Klasse.
public class PagerAdapter extends FragmentStatePagerAdapter {
int mNumOfTabs;
public PagerAdapter(FragmentManager fm, int NumOfTabs) {
super(fm);
this.mNumOfTabs = NumOfTabs;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
Fragment1 tab1 = new Fragment1();
return tab1;
case 1:
Fragment2 tab2 = new Fragment2();
return tab2;
case 2:
Fragment3 tab3 = new Fragment3();
return tab3;
default:
return null;
}
}
@Override
public int getCount() {
return mNumOfTabs;
}
}
Ich benutze FirebaseRecyclerAdapter zu verbinden
public abstract class FirebaseRecyclerAdapter<T, VH extends RecyclerView.ViewHolder> extends RecyclerView.Adapter<VH> {
Class<T> mModelClass;
protected int mModelLayout;
Class<VH> mViewHolderClass;
FirebaseArray mSnapshots;
ArrayList<HashMap<String, String>> dataList;
public FirebaseRecyclerAdapter(Class<T> modelClass, int modelLayout, Class<VH> viewHolderClass, Query ref) {
mModelClass = modelClass;
mModelLayout = modelLayout;
mViewHolderClass = viewHolderClass;
mSnapshots = new FirebaseArray(ref);
mSnapshots.setOnChangedListener(new FirebaseArray.OnChangedListener() {
@Override
public void onChanged(EventType type, int index, int oldIndex) {
switch (type) {
case Added:
notifyItemInserted(index);
break;
case Changed:
notifyItemChanged(index);
break;
case Removed:
notifyItemRemoved(index);
break;
case Moved:
notifyItemMoved(oldIndex, index);
break;
default:
throw new IllegalStateException("Incomplete case statement");
}
}
});
}
public FirebaseRecyclerAdapter(Class<T> modelClass, int modelLayout, Class<VH> viewHolderClass, Firebase ref) {
this(modelClass, modelLayout, viewHolderClass, (Query) ref);
}
public void cleanup() {
mSnapshots.cleanup();
}
@Override
public int getItemCount() {
return mSnapshots.getCount();
}
public T getItem(int position) {
return parseSnapshot(mSnapshots.getItem(position));
}
protected T parseSnapshot(DataSnapshot snapshot) {
return snapshot.getValue(mModelClass);
}
public Firebase getRef(int position) { return mSnapshots.getItem(position).getRef(); }
@Override
public long getItemId(int position) {
// http://stackoverflow.com/questions/5100071/whats-the-purpose-of-item-ids-in-android-listview-adapter
return mSnapshots.getItem(position).getKey().hashCode();
}
@Override
public VH onCreateViewHolder(ViewGroup parent, int viewType) {
ViewGroup view = (ViewGroup) LayoutInflater.from(parent.getContext()).inflate(mModelLayout, parent, false);
try {
Constructor<VH> constructor = mViewHolderClass.getConstructor(View.class);
return constructor.newInstance(view);
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
System.out.println("cause: "+ e.getCause());
throw new RuntimeException(e);
} catch (InstantiationException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
@Override
public void onBindViewHolder(VH viewHolder, int position) {
T model = getItem(position);
populateViewHolder(viewHolder, model, position);
}
abstract protected void populateViewHolder(VH viewHolder, T model, int position);
public void setFilter(ArrayList<HashMap<String, String>> countryModels) {
dataList = new ArrayList<>();
dataList.addAll(countryModels);
notifyDataSetChanged();
}
}
Bitte helfen Sie mir, dieses Problem zu lösen Feuerbasis. Vielen Dank.
Könnten Sie bitte Beispiel geben, wie dies zu erreichen? Ich habe versucht, herauszufinden, wie man das macht, aber immer noch feststeckte. Was muss ich in der Aktivität und im ViewHolder hinzufügen? – subcom