当我单击“like”按钮时，它不会调用设置为在适配器中调用的方法，它会在 logcat“viewposttime 指针 0”和“viewposttime 指针 1”中提供输出。我用另一个适配器做了类似的事情，效果很好。不知道为什么它没有调用该方法，Log.D 在此工作正常。我想要的只是当单击按钮时它执行 l1comment() 的功能来更新数据库
我关心的是 onBindViewHolder 中的 FavPostButton
下面是代码
protected void getComments() {
Query query = db.collection("posts").document(Post_Key).collection("comments");
FirestoreRecyclerOptions<Comments> options = new FirestoreRecyclerOptions.Builder<Comments>()
.setQuery(query, Comments.class)
.build();
adapter = new FirestoreRecyclerAdapter<Comments, CommentsViewHolder>(options) {
@Override
protected void onBindViewHolder(@NonNull CommentsViewHolder commentsViewHolder, int i, @NonNull Comments comments) {
documentId = getSnapshots().getSnapshot(i).getId();
commentsViewHolder.textViewTitle.setText(comments.getUsername());
commentsViewHolder.textViewDescription.setText(comments.getComment());
commentsViewHolder.favPostButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
l1Comment();
Log.d(TAG, "Your CommentID" + documentId);
}
});
}
@NonNull
@Override
public CommentsViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.comment_list_items, parent, false);
return new CommentsViewHolder(view);
}
@Override
public void onError(FirebaseFirestoreException e) {
Log.e("error", e.getMessage());
}
};
adapter.notifyDataSetChanged();
commentsList.setAdapter(adapter);
}
private void l1Comment() {
likesRef = db.collection("posts").document(Post_Key).collection("comments").document(documentId);
likesRef.addSnapshotListener(new EventListener<DocumentSnapshot>() {
@Override
public void onEvent(@Nullable DocumentSnapshot documentSnapshot, @Nullable FirebaseFirestoreException e) {
if (documentSnapshot.contains(mUserId)) {
likesRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
if (document.get("l1") != null) {
Toast.makeText(CommentActivity.this, "You already in Process", Toast.LENGTH_SHORT).show();
Log.d(TAG, "your field exist");
} else {
Log.d(TAG, "your field does not exist");
likeChecker = true;
Map<String, Object> commentMap = new HashMap<>();
commentMap.put("l1", likeChecker);
likesRef.update(commentMap).addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if (task.isSuccessful()) {
Toast.makeText(CommentActivity.this, "l1 done", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getApplicationContext(), task.getException().getLocalizedMessage(), Toast.LENGTH_SHORT).show();
}
}
});
//Create the filed
}
}
}
}
});
} else {
}
}
});
}
public static class CommentsViewHolder extends RecyclerView.ViewHolder {
View mView;
TextView textViewTitle;
TextView textViewDescription;
TextView textViewPriority;
Button favPostButton;
Button commentsbutton;
public CommentsViewHolder(final View itemView) {
super(itemView);
textViewTitle = itemView.findViewById(R.id.list_comment_name);
textViewDescription = itemView.findViewById(R.id.list_comment_content);
textViewPriority = itemView.findViewById(R.id.list_comment_stamp);
commentsbutton = itemView.findViewById(R.id.comments_input_button);
favPostButton = itemView.findViewById(R.id.comment_liking);
}
}
最佳答案
使用以下代码并在 firebase 仪表板中查看结果。
private void l1Comment() {
likesRef = db.collection("posts").document(Post_Key).collection("comments").document(documentId);
likesRef.addSnapshotListener(new EventListener<DocumentSnapshot>() {
@Override
public void onEvent(@Nullable DocumentSnapshot documentSnapshot, @Nullable FirebaseFirestoreException e) {
if (documentSnapshot.contains(mUserId)) {
likesRef.get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if (task.isSuccessful()) {
DocumentSnapshot document = task.getResult();
if (document.exists()) {
if (document.get("l1") != null) {
Toast.makeText(CommentActivity.this, "You already in Process", Toast.LENGTH_SHORT).show();
Log.d(TAG, "your field exist");
} else {
new Thread("update_thread"){
public void run(){
Log.d(TAG, "your field does not exist");
likeChecker = true;
Map<String, Object> commentMap = new HashMap<>();
commentMap.put("l1", likeChecker);
likesRef.update(commentMap).addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if (task.isSuccessful()) {
Toast.makeText(CommentActivity.this, "l1 done", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getApplicationContext(), task.getException().getLocalizedMessage(), Toast.LENGTH_SHORT).show();
}
}
});
//Create the filed
}
}.start();
}
}
}
}
});
} else {
}
}
});
}
关于java - 当我单击“like”按钮时，它不会调用设置要调用的方法，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57755271/