我已经在我的应用中实现了Firebase回收器。使用text watcher时一切正常,但是在onTextChanged
中,使用键盘向上时,recycler视图未更新,并且当我按下键盘时,更新了该视图。
这是我的代码:
private TextWatcher textWatcher = new TextWatcher() {
public void afterTextChanged(Editable s) {
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before,
int count) {
if(s.toString().trim().length()<1)
{
mRecyclerView.setVisibility(View.GONE);
}
else
{
mRecyclerView.setVisibility(View.VISIBLE);
firebaseSearch(s.toString());
}
Toast.makeText(ChooseUser.this,s.toString(),Toast.LENGTH_SHORT).show();
}
};
这是Firebase回收者:
private void firebaseSearch(String searchText)
{
Query firebaseSearchQuery = databaseReference
.orderByChild("Name")
.startAt(searchText.toLowerCase())
.endAt(searchText.toLowerCase() + "\uf8ff");
FirebaseRecyclerOptions<Users> options =
new FirebaseRecyclerOptions.Builder<Users>()
.setQuery(firebaseSearchQuery, snapshot ->
new Users(snapshot.child("Name").getValue().toString(),
snapshot.child("Image").getValue().toString(),
snapshot.getKey(),
snapshot.child("Profile").getValue().toString()
))
.build();
firebaseRecyclerAdapter = new FirebaseRecyclerAdapter<Users, UsersViewHolder>(
options
) {
@Override
protected void onBindViewHolder(@NonNull UsersViewHolder holder, int position, @NonNull Users model) {
holder.setDetails(getApplicationContext(), model.getName(), model.getImage());
}
@NonNull
@Override
public UsersViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.search_list_items, parent, false);
return new UsersViewHolder(view);
}
};
firebaseRecyclerAdapter.startListening();
mRecyclerView.setAdapter(firebaseRecyclerAdapter);
}
我是否需要更改代码以在输入单词时动态更新视图并在键盘弹起时显示回收站?
只是,我的代码中包含mRecyclerView.setHasFixedSize(true);
。删除它就可以了。