DisplayListCanvas wird auf ungebundenem RenderNode (ohne mOwningView) gestartet

Question

Ich versuche, AutoCompleteTextView mit meiner benutzerdefinierten ArrayAdapter zu füllen. Ich denke, es funktioniert gut mit Hinzufügen von Anzeigewerten. Das einzige Problem ist, dass kein Dropdown angezeigt wird. Weiß jemand, wie dieses Dropdown sichtbar ist? Jedes Mal, wenn ich das Drop-down sehen sollte, kann ich log Meldung sagen:

DisplayListCanvas: DisplayListCanvas auf ungebundener RenderNode gestartet (ohne mOwningView)

Mein Adaptercode:

public class UserSearchAdapter extends ArrayAdapter<Profile> { 

    Context context; 
    ArrayList profiles; 


    public UserSearchAdapter(Context context, int resource, ArrayList<Profile> objects) { 
     super(context, resource, objects); 
     this.context = context; 
     this.profiles = objects; 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 

     if (convertView == null) { 
      convertView = LayoutInflater.from(this.getContext()) 
        .inflate(R.layout.single_user_item, parent, false); 
     } 

     Profile profile = (Profile) profiles.get(position); 

     TextView text = (TextView) convertView.findViewById(R.id.single_user_name_text); 
     text.setText(profile.getDisplayName()); 

     return convertView; 
    } 

} 

Mein MainActivity-Code:

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_member_supervisor); 
    activity = MemberSupervisorActivity.this; 

    Firebase.setAndroidContext(this); 

    autoCompleteUser = (AutoCompleteTextView) findViewById(R.id.auto_members); 

    profiles = new ArrayList<>(); 

    members = new UserSearchAdapter(activity, R.layout.single_user_item, profiles); 

    autoCompleteUser.setAdapter(members); 
    autoCompleteUser.setThreshold(1); 

    autoCompleteUser.addTextChangedListener(new TextWatcher() { 
     @Override 
     public void beforeTextChanged(CharSequence s, int start, int count, int after) { 

     } 

     @Override 
     public void onTextChanged(CharSequence s, int start, int before, int count) { 

     } 

     @Override 
     public void afterTextChanged(Editable s) { 
      final Query auto = new Firebase(Constants.FIREBASE_USER_PROFILE).orderByChild("displayName").startAt(autoCompleteUser.getText().toString()).endAt(autoCompleteUser.getText().toString() + "~"); 
      auto.addListenerForSingleValueEvent(new ValueEventListener() { 
       @Override 
       public void onDataChange(DataSnapshot dataSnapshot) { 
        profiles.clear(); 
        Log.d("entered", autoCompleteUser.getText().toString()); 
        for (DataSnapshot data : dataSnapshot.getChildren()) { 
         Profile profile = data.getValue(Profile.class); 
         profiles.add(profile); 
         Log.d("results", profile.getDisplayName()); 
        } 
        members.notifyDataSetChanged(); 
       } 

       @Override 
       public void onCancelled(FirebaseError firebaseError) { 

       } 
      }); 
     } 
    }); 

} 

Answer 1

Ändern Sie Ihren Adapter, der die Filterlogik enthält, wie unten gezeigt.

public class UserSearchAdapter extends ArrayAdapter<Profile> { 

    Context context; 
    ArrayList profiles; 
    ArrayList<Profile> suggestions, tempItems; 

    public UserSearchAdapter(Context context, int resource, ArrayList<Profile> objects) { 
     super(context, resource, objects); 
     this.context = context; 
     this.profiles = objects; 
     this.suggestions=new ArrayList(); 
     tempItems = new ArrayList(Profile); 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 

     if (convertView == null) { 
      convertView = LayoutInflater.from(this.getContext()) 
        .inflate(R.layout.single_user_item, parent, false); 
     } 

     Profile profile = (Profile) profiles.get(position); 

     TextView text = (TextView) convertView.findViewById(R.id.single_user_name_text); 
     text.setText(profile.getDisplayName()); 

     return convertView; 
    } 

    @Override 
    public Filter getFilter() { 
     return nameFilter; 
    } 

    /** 
    * Custom Filter implementation for custom suggestions we provide. 
    */ 
    Filter nameFilter = new Filter() { 
     @Override 
     public CharSequence convertResultToString(Object resultValue) { 
      String str = ((Profile) resultValue).getName(); 
      return str; 
     } 

     @Override 
     protected FilterResults performFiltering(CharSequence constraint) { 
      if (constraint != null) { 
       suggestions.clear(); 
       for (Profile profile : tempItems) { 
        if (profile.getDisplayName().toLowerCase().contains(constraint.toString().toLowerCase())) { 
         suggestions.add(profile); 
        } 
       } 
       FilterResults filterResults = new FilterResults(); 
       filterResults.values = suggestions; 
       filterResults.count = suggestions.size(); 
       return filterResults; 
      } else { 
       return new FilterResults(); 
      } 
     } 

     @Override 
     protected void publishResults(CharSequence constraint, FilterResults results) { 
      List<Profile> filterList = (ArrayList<Profile>) results.values; 
      if (results != null && results.count > 0) { 
       clear(); 
       for (Profile profile : filterList) { 
        add(profile); 
        notifyDataSetChanged(); 
       } 
      } 
     } 
    }; 
} 

Hinweis: Import android.widget.Filter; Hoffe das hilft !!!