我可以在回收者视图中显示其他用户的帖子。但是我无法在该回收站视图中显示自己的帖子。当我打开HomeFragmentActivity时，它会显示所有其他帖子而没有所有者的帖子。我正在尝试在此回收站视图中查看我的帖子，但是我看不到。但是其他用户可以看到我的帖子。 任何人都可以帮助我.... 这是我的代码...
发布适配器
public class PostAdapter extends RecyclerView.Adapter<PostAdapter.ViewHolder> {
public Context mContext;
private List <Post>mPost;
private FirebaseUser firebaseUser;
public PostAdapter(Context mContext, List<Post> mPost) {
this.mContext = mContext;
this.mPost = mPost;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view= LayoutInflater.from(mContext).inflate(R.layout.post_item,parent,false);
return new PostAdapter.ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder holder, int position) {
firebaseUser= FirebaseAuth.getInstance().getCurrentUser();
final Post post=mPost.get(position);
Glide.with(mContext).load(post.getPostimage()).into(holder.post_image);
if(post.getDescription().equals("")){
holder.description.setVisibility(View.GONE);
}else {
holder.description.setVisibility(View.VISIBLE);
holder.description.setText(post.getDescription());
}
publisherInfo(holder.image_profile,holder.username,holder.publisher,post.getPublisher());
isLiked(post.getPostid(),holder.like);
nrLikes(holder.likes,post.getPostid());
getComments(post.getPostid(),holder.comments);
isSaved(post.getPostid(),holder.save);
holder.image_profile.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SharedPreferences.Editor editor=mContext.getSharedPreferences("PREFS",Context.MODE_PRIVATE).edit();
editor.putString("profileid",post.getPublisher());
editor.apply();
((FragmentActivity)mContext).getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
new ProfileFragment()).commit();
}
});
holder.username.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SharedPreferences.Editor editor=mContext.getSharedPreferences("PREFS",Context.MODE_PRIVATE).edit();
editor.putString("profileid",post.getPublisher());
editor.apply();
((FragmentActivity)mContext).getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
new ProfileFragment()).commit();
}
});
holder.publisher.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SharedPreferences.Editor editor=mContext.getSharedPreferences("PREFS",Context.MODE_PRIVATE).edit();
editor.putString("profileid",post.getPublisher());
editor.apply();
((FragmentActivity)mContext).getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
new ProfileFragment()).commit();
}
});
holder.post_image.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SharedPreferences.Editor editor=mContext.getSharedPreferences("PREFS",Context.MODE_PRIVATE).edit();
editor.putString("postid",post.getPostid());
editor.apply();
((FragmentActivity)mContext).getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
new PostDetailsFragment()).commit();
}
});
holder.comment.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent( mContext, CommentsActivity.class);
intent.putExtra("postid",post.getPostid());
intent.putExtra("publisherid",post.getPublisher());
mContext.startActivity(intent);
}
});
holder.save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(holder.save.getTag().equals("save")){
FirebaseDatabase.getInstance().getReference().child("Saves").child(firebaseUser.getUid()).
child(post.getPostid()).setValue(true);
}else {
FirebaseDatabase.getInstance().getReference().child("Saves").child(firebaseUser.getUid()).
child(post.getPostid()).removeValue();
}
}
});
holder.comments.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent( mContext, CommentsActivity.class);
intent.putExtra("postid",post.getPostid());
intent.putExtra("publisherid",post.getPublisher());
mContext.startActivity(intent);
}
});
holder.likes.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent(mContext, FollowersActivity.class);
intent .putExtra("id",post.getPostid());
intent.putExtra("title","likes");
mContext. startActivity(intent);
}
});
holder.like.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (holder.like.getTag().equals("like")){
FirebaseDatabase.getInstance().getReference().child("Likes").child(post.getPostid()).child(firebaseUser.getUid()).setValue(true);
addNotifications(post.getPublisher(),post.getPostid());
}else {
FirebaseDatabase.getInstance().getReference().child("Likes").child(post.getPostid()).child(firebaseUser.getUid()).removeValue();
}
}
});
}
@Override
public int getItemCount() {
return mPost.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public ImageView image_profile,post_image,like,comment,save;
public TextView username,likes,comments, description,publisher;
public ViewHolder(@NonNull View itemView) {
super(itemView);
image_profile=itemView.findViewById(R.id.image_profile);
post_image=itemView.findViewById(R.id.post_image);
like=itemView.findViewById(R.id.like);
comment=itemView.findViewById(R.id.comment);
save=itemView.findViewById(R.id.save);
username=itemView.findViewById(R.id.username);
likes=itemView.findViewById(R.id.likes);
comments=itemView.findViewById(R.id.comments);
description=itemView.findViewById(R.id.description);
publisher=itemView.findViewById(R.id.publisher);
}
}
private void getComments(String postid, final TextView comments){
DatabaseReference reference=FirebaseDatabase.getInstance().getReference().child("Comments").child(postid);
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
comments.setText("View All"+dataSnapshot.getChildrenCount()+"Comments");
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void isLiked(String postid, final ImageView imageView){
final FirebaseUser firebaseUser=FirebaseAuth.getInstance().getCurrentUser();
DatabaseReference reference=FirebaseDatabase.getInstance().getReference().child("Likes").child(postid);
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if (dataSnapshot.child(firebaseUser.getUid()).exists()){
imageView.setImageResource(R.drawable.ic_liked);
imageView.setTag("liked");
}
else{
imageView.setImageResource(R.drawable.ic_like);
imageView.setTag("like");
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void addNotifications(String userid, String postid){
DatabaseReference reference=FirebaseDatabase.getInstance().getReference("Notifications").child(userid);
HashMap<String,Object>hashMap=new HashMap<>();
hashMap.put("userid",firebaseUser.getUid());
hashMap.put("text","liked your post");
hashMap.put("postid",postid);
hashMap.put("ispost",true);
reference.push().setValue(hashMap);
}
private void nrLikes(final TextView likes, String postid){
DatabaseReference reference=FirebaseDatabase.getInstance().getReference().child("Likes").child(postid);
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
likes.setText(dataSnapshot.getChildrenCount()+" likes");
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void publisherInfo (final ImageView image_profile, final TextView username, final TextView publisher, final String userId ){
DatabaseReference reference= FirebaseDatabase.getInstance().getReference("Users").child(userId);
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
User user=dataSnapshot.getValue(User.class);
Glide.with(mContext).load(user.getImageurl()).into(image_profile);
username.setText(user.getUsername());
publisher.setText(user.getUsername());
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
private void isSaved(final String postId, final ImageView imageView){
FirebaseUser firebaseUser=FirebaseAuth.getInstance().getCurrentUser();
DatabaseReference reference=FirebaseDatabase.getInstance().getReference().child("Saves").
child(firebaseUser.getUid());
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
if(dataSnapshot.child(postId).exists()){
imageView.setImageResource(R.drawable.ic_save_black);
imageView.setTag("saved");
}else {
imageView.setImageResource(R.drawable.ic_save);
imageView.setTag("save");
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
}
家庭片段
public class HomeFragment extends Fragment {
private RecyclerView recyclerView;
private PostAdapter postAdapter;
private List<Post>postLists;
private List<String> followinglist;
ProgressBar progressBar;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view= inflater.inflate(R.layout.fragment_home, container, false);
progressBar=view.findViewById(R.id.progress_circular);
recyclerView=view.findViewById(R.id.recyler_view);
recyclerView.setHasFixedSize(true);
LinearLayoutManager layoutManager=new LinearLayoutManager(getContext());
layoutManager.setReverseLayout(true);
layoutManager.setStackFromEnd(true);
recyclerView.setLayoutManager(layoutManager);
postLists=new ArrayList<>();
postAdapter=new PostAdapter(getContext(),postLists);
recyclerView.setAdapter(postAdapter);
checkFollowing();
return view;
}
private void checkFollowing(){
//
followinglist=new ArrayList<>();
DatabaseReference reference= FirebaseDatabase.getInstance().getReference("Follow").
child(FirebaseAuth.getInstance().getCurrentUser().getUid()).child("following");
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
followinglist.clear();
for(DataSnapshot snapshot : dataSnapshot.getChildren()){
followinglist.add(snapshot.getKey());
}
readPosts();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
public void readPosts(){
DatabaseReference reference= FirebaseDatabase.getInstance().getReference("posts");
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
postLists.clear();
for (DataSnapshot snapshot : dataSnapshot.getChildren()){
Post post=snapshot.getValue(Post.class);
for(String id : followinglist){
if(post.getPublisher().equals(id)){
postLists.add(post);
}
}
}
postAdapter.notifyDataSetChanged();
progressBar.setVisibility(View.GONE);
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
}
答案 0 :(得分：1)
删除 对于（字符串 ID：以下列表） 并让代码
公共类 HomeFragment 扩展 Fragment {
private[services] final def nestedSearch(payload: JsValue, name: String): JsLookupResult = {
val arrRegex = "([\\w]+)\\[([\\d]+)\\]".r
JsPath {
name.split("\\.").toList.flatMap {
case arrRegex(node, index) => List(KeyPathNode(node), IdxPathNode(index.toInt))
case s => List(KeyPathNode(s))
}
}(payload) match {
case Nil => JsUndefined(s"Could not find $name in $payload")
case res :: _ => JsDefined(res)
}
}
它会每 1 次显示所有帖子
答案 1 :(得分：0)
将所有帖子添加到列表中
for(String id : followinglist){
postLists.add(post);
}