这就是发生的事情...... i have taken screenshot of recyclerview
视图再次创建n。我想要为单个数据创建一次jst视图。
可能是getItemCount（）
中的data.size（）适配器
public class ChatAdapter extends RecyclerView.Adapter<ChatAdapter.MyChatViewHolder> {
private LayoutInflater layoutInflater;
public ClickListener mClickListener;
List<fireInfo> Data= Collections.EMPTY_LIST;
public Context context;
private String EmailPref;
public ChatAdapter(){
//KEEP it empty !!
}
public ChatAdapter(Context context, List<fireInfo> Data) {
layoutInflater = LayoutInflater.from(context);
this.Data=Data;
}
@Override
public MyChatViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = layoutInflater.inflate(R.layout.chat_view_list, parent, false);
MyChatViewHolder viewHolder = new MyChatViewHolder(view);
Log.e("pavan", "hey im called chatADAPTER");
context = parent.getContext();
ButterKnife.bind(parent);
return viewHolder;
}
@Override
public void onBindViewHolder(MyChatViewHolder holder, int position) {
fireInfo current=Data.get(position);
Log.e("pavan", "hey im called chatADAPTER" + current.Namee);
String keylocal = current.KeyCur;
Log.e("pavan", "Chat Adapter key" + current.KeyCur+position);
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
prefs.getString("keylocal"+position,keylocal+position);
if (keylocal!=null){
prefs.edit().putString("keylocal"+position,keylocal+position ).commit();
}
holder.mName.setText(current.Namee);
holder.mStatus.setText(current.UserStatus);
Picasso.with(context).load(current.ImageUrl).transform(new CircleTransform()).into(holder.mImageProfile);
}
public void setClickListener(ClickListener clickListener) {
this.mClickListener = clickListener;
}
public interface ClickListener{
public void itemClicked(View view,int position);
}
@Override
public int getItemCount() {
Log.e("pavan", "Chat Adapter data sizeee " +Data.size());
return Data.size();
}
如何解决这个问题。提前谢谢。
编辑：添加
public class ChatFragment extends Fragment implements ClickListener,SheetLayout.OnFabAnimationEndListener{
// TODO: Customize parameter argument names
private static final String ARG_COLUMN_COUNT = "column-count";
private static int i=0;
private static int j;
List<fireInfo> Data= Collections.EMPTY_LIST;
// TODO: Customize parameters
private int mColumnCount = 1;
private ChatAdapter adapter;
private OnListFragmentInteractionListener mListener;
//private static String[] name=new String[40];
public static List<String> name =new LinkedList<>(Collections.<String>emptySet());
public static List<String> image = new LinkedList<>(Collections.<String>emptySet());
public static List<String> status = new LinkedList<>(Collections.<String>emptySet());
public static List<String> key = new LinkedList<>(Collections.<String>emptySet());
public Button mAddbutton;
public FloatingActionButton fab1;
public FloatingActionButton fab2;
public SheetLayout mSheetLayout ;
private static final int REQUEST_CODE = 1;
/**
* Mandatory empty constructor for the fragment manager to instantiate the
* fragment (e.g. upon screen orientation changes).
*/
public ChatFragment() {
}
// TODO: Customize parameter initialization
@SuppressWarnings("unused")
public static ChatFragment newInstance(int columnCount) {
ChatFragment fragment = new ChatFragment();
Bundle args = new Bundle();
args.putInt(ARG_COLUMN_COUNT, columnCount);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_item_chat, container, false);
fab1 = (FloatingActionButton)view. findViewById(R.id.fabchat);
fab2 = (FloatingActionButton) view.findViewById(R.id.fabchat2);
Log.e("pavan", "hey Chatfragment called");
// Set the adapter
RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.Chatlist);
adapter=new ChatAdapter(getActivity(),getDataOther());
//if(getDataOther()==null){
Log.e("pavan", "data NULL " + getDataOther());//}
adapter.setClickListener(this);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
AlphaInAnimationAdapter alphaAdapter = new AlphaInAnimationAdapter(adapter);
alphaAdapter.setDuration(500);
alphaAdapter.setInterpolator(new OvershootInterpolator(.5f));
alphaAdapter.setFirstOnly(false);
recyclerView.setAdapter(new ScaleInAnimationAdapter(alphaAdapter));
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
prefs.edit().putBoolean("CallAdd", false).commit();
mSheetLayout=(SheetLayout)view.findViewById(R.id.bottom_sheet);
mSheetLayout.setFab(fab1);
mSheetLayout.setFabAnimationEndListener(this);
fab1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (fab1.getVisibility() == View.VISIBLE) {
mSheetLayout.expandFab();
fab1.setVisibility(View.GONE);
fab2.setVisibility(View.VISIBLE);
}
}
});
return view;
}
@Override
public void onFabAnimationEnd() {
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.chatFARG, new AddFriendsFragment(), "Login");
ft.commit();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == REQUEST_CODE){
mSheetLayout.contractFab();
}
}
enum Type {
AlphaIn {
List<fireInfo> Data= Collections.EMPTY_LIST;
public AnimationAdapter get(Context context) {
ChatAdapter adapter = new ChatAdapter(context, Data);
return new AlphaInAnimationAdapter(adapter);
}
}; public abstract AnimationAdapter get(Context context);
}
public static List<fireInfo> getDataOther(){
List<fireInfo>data=new ArrayList<>();
final Firebase mFirebaseRef = new Firebase(constants.FIREBASE_URL+"rootssahaj/authGplus");
Query queryRef = mFirebaseRef.orderByKey();
queryRef.addChildEventListener(new ChildEventListener() {
@TargetApi(Build.VERSION_CODES.KITKAT)
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
Log.e("pavan", "Query FIREBASE in CHAT FRAGMENT" + dataSnapshot.getKey());
List<fireInfo>data=new ArrayList<>();
if (!Objects.equals(dataSnapshot.getKey(), "sahaj9917730102@gmail")) {
key.add(i,dataSnapshot.getKey());
Log.e("pavan", "Query FIREBASE keyy" + dataSnapshot.getKey());
Log.e("pavan", "Query FIREBASE" + dataSnapshot.getValue());
Map<String, String> map = dataSnapshot.getValue(Map.class);
name.add(i, map.get("userNAME"));
image.add(i, map.get("picurl"));
status.add(i, map.get("status"));
i++;
}
}
@TargetApi(Build.VERSION_CODES.KITKAT)
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
List<fireInfo>data=new ArrayList<>();
if (!Objects.equals(dataSnapshot.getKey(), "sahaj9917730102@gmail")) {
Log.e("pavan", "Query FIREBASE" + dataSnapshot.getValue());
Map<String, String> map = dataSnapshot.getValue(Map.class);
// name.set(i, map.get("userNAME"));
// image.set(i, map.get("picurl"));
// name.set(i, map.get("status"));
// i++;
}
}
@TargetApi(Build.VERSION_CODES.KITKAT)
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
List<fireInfo>data=new ArrayList<>();
if (!Objects.equals(dataSnapshot.getKey(), "sahaj9917730102@gmail")) {
Log.e("pavan", "Query FIREBASE" + dataSnapshot.getValue());
Map<String, String> map = dataSnapshot.getValue(Map.class);
//name.set(i, map.get("userNAME"));
// image.set(i, map.get("picurl"));
// name.set(i, map.get("status"));
// i++;
}
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(FirebaseError firebaseError) {
}
});
for(int k=1;k<i;k++){
fireInfo current=new fireInfo();
current.Namee=name.get(k);
current.ImageUrl=image.get(k);
current.UserStatus=status.get(k);
current.KeyCur=key.get(k);
data.add(current);}
return data;
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnListFragmentInteractionListener) {
mListener = (OnListFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnListFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
@Override
public void itemClicked(View view, int position) {
}
public interface OnListFragmentInteractionListener {
// TODO: Update argument type and name
void onListFragmentInteraction();
}
}
编辑：解决方案
我得到了纠正，实际上“Lucius Hipan”是正确的，因为传递数据存在问题..数据再次传递给n再次'为什么recyclelerView正在这样做。谢谢！