Cómo reemplazar la lista desplegable MultiAutoCompleteTextView

Question

Estoy intentando reemplazar la lista desplegable MultiAutoCompleteTextView con un ListView, que debe tener la misma funcionalidad que la lista desplegable, es decir, cuando hago clic en uno de los elementos, debe agregarse a Cuadro MultiAutoCompleteTextView, etc., pero filtrando el ListView mientras escribe.

Así me ocurrió con este código en bruto sin éxito:

filterable_listview.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" android:layout_height="fill_parent" 
android:orientation="vertical"> 

<MultiAutoCompleteTextView 
    android:layout_height="wrap_content" android:layout_width="fill_parent" 
    android:hint="@string/To" android:id="@+id/search_box"></MultiAutoCompleteTextView> 

<ListView android:id="@android:id/list" android:layout_width="fill_parent" 
    android:layout_height="fill_parent" android:layout_weight="1"/> 

</LinearLayout> 

AutoCompleteActivity.java

protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.filterable_listview); 
manager = new ContactManager(); 
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, manager.getContacts()); 

searchEdit = (MultiAutoCompleteTextView) findViewById(R.id.search_box); 

searchEdit.addTextChangedListener(filterTextWatcher); 

searchEdit.setTokenizer(new SpaceTokenizer()); 

setListAdapter(adapter); 

getListView().setOnItemClickListener(
    new ListView.OnItemClickListener() { 
    public void onItemClick(AdapterView<?> parent, View view, 
          int position, long id) { 
        //Here is one issues 
    searchEdit.append(adapter.getItem(position)); 
    } 
}); 
} 

private TextWatcher filterTextWatcher = 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) { 
      adapter.getFilter().filter(s); 
     } 

}; 

tengo problemas principales:

1) Cuando hago clic en un elemento, se adjunta todo el texto seleccionado, Sé que el problema se basa en:

searchEdit.append (adapter.getItem (position));

pero, ¿cómo puedo hacer el texto cruzado como autocompletar regular?

2) Una vez que se selecciona un elemento, al lado de entrada no muestran la sugerencia más (a pesar de SpaceTonekizer)

Espero que mi explicación era clara.

Gracias de antemano

Answer 1

Si alguien tiene que hacer algo que necesitaba, he hecho este

private MultiAutoCompleteTextView searchEdit; 

private ArrayAdapter<String> adapter = null; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    adapter = new ArrayAdapter<String>(this, 
      android.R.layout.simple_dropdown_item_1line, manager 
        .getContacts()); 

    setListAdapter(adapter); 

    searchEdit = (MultiAutoCompleteTextView) findViewById(R.id.search_box); 

    searchEdit.addTextChangedListener(filterTextWatcher); 

    searchEdit.setTokenizer(new SpaceTokenizer()); 

    searchEdit.setAdapter(adapter); 

    searchEdit.setOnClickListener(new OnClickListener() { 

     public void onClick(View v) { 
      String t = ((TextView) v).getText().toString(); 
      String f = searchEdit.getText().toString(); 

      int s = searchEdit.getSelectionStart(); 
      int i = s; 

      while (i > 0 && f.charAt(i - 1) != ' ') { 
       i--; 
      } 

      adapter.getFilter().filter(t.substring(i, s)); 
     } 
    }); 

    okButton = (Button) findViewById(R.id.ok); 
    okButton.setOnClickListener(new OnClickListener() { 

     public void onClick(View v) { 
      Bundle stats = new Bundle(); 
      stats.putString("ConversationName", searchEdit.getText() 
        .toString()); 

      Intent i = new Intent(); 
      i.putExtras(stats); 
      setResult(RESULT_OK, i); 
      finish(); 
     } 
    }); 

    searchEdit.setOnKeyListener(new OnKeyListener() { 

     public boolean onKey(View v, int keyCode, KeyEvent event) { 
      if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT 
        || keyCode == KeyEvent.KEYCODE_DPAD_RIGHT 
        || keyCode == KeyEvent.KEYCODE_DPAD_UP 
        || keyCode == KeyEvent.KEYCODE_DPAD_DOWN) { 

       String t = ((TextView) v).getText().toString(); 
       String f = searchEdit.getText().toString(); 

       int s = searchEdit.getSelectionStart(); 
       int i = s; 

       while (i > 0 && f.charAt(i - 1) != ' ') { 
        i--; 
       } 

       adapter.getFilter().filter(t.substring(i, s)); 

       return false; 
      } 

      return false; 
     } 
    }); 

    getListView().setOnItemClickListener(
      new ListView.OnItemClickListener() { 
       public void onItemClick(AdapterView<?> parent, View view, 
         int position, long id) { 

        String t = adapter.getItem(position); 
        String f = searchEdit.getText().toString(); 

        int s = searchEdit.getSelectionStart(); 
        int i = s; 

        while (i > 0 && f.charAt(i - 1) != ' ') { 
         i--; 
        } 

        searchEdit.getText().insert(s, t.substring(s - i)); 
       } 
      }); 
} 


    @Override 
protected void onDestroy() { 
    super.onDestroy(); 
    searchEdit.removeTextChangedListener(filterTextWatcher); 
} 


private TextWatcher filterTextWatcher = new TextWatcher() { 

    public void afterTextChanged(Editable s) { 
     okButton.setEnabled(searchEdit.getText().toString().trim() 
       .length() > 0); 
    } 

    public void beforeTextChanged(CharSequence s, int start, int count, 
      int after) { 
    } 

    public void onTextChanged(CharSequence s, int start, int before, 
      int count) { 
     adapter.getFilter().filter(s); 
    } 

}; 



public class SpaceTokenizer implements Tokenizer { 

public int findTokenStart(CharSequence text, int cursor) { 
    int i = cursor; 

    while (i > 0 && text.charAt(i - 1) != ' ') { 
     i--; 
    } 
    while (i < cursor && text.charAt(i) == ' ') { 
     i++; 
    } 

    return i; 
} 

public int findTokenEnd(CharSequence text, int cursor) { 
    int i = cursor; 
    int len = text.length(); 

    while (i < len) { 
     if (text.charAt(i) == ' ') { 
      return i; 
     } else { 
      i++; 
     } 
    } 

    return len; 
} 

public CharSequence terminateToken(CharSequence text) { 
    int i = text.length(); 

    while (i > 0 && text.charAt(i - 1) == ' ') { 
     i--; 
    } 

    if (i > 0 && text.charAt(i - 1) == ' ') { 
     return text; 
    } else { 
     if (text instanceof Spanned) { 
      SpannableString sp = new SpannableString(text + " "); 
      TextUtils.copySpansFrom((Spanned) text, 0, text.length(), 
        Object.class, sp, 0); 
      return sp; 
     } else { 
      return text + " "; 
     } 
    } 
} 
} 

El XML es el siguiente:

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" android:layout_height="fill_parent" 
android:orientation="vertical" 
android:drawingCacheQuality="high"> 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" android:layout_height="wrap_content" 
android:orientation="horizontal"> 


    <MultiAutoCompleteTextView 
     android:layout_marginLeft="1dip" 
     android:layout_marginTop="1dip" 
     android:layout_height="wrap_content" 
     android:layout_weight="1" 
     android:layout_width="fill_parent" 
     android:dropDownHeight="0px" 
     android:hint="@string/To" 
     android:id="@+id/search_box" 
     ></MultiAutoCompleteTextView> 



    <Button android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Ok" 
     android:id="@+id/ok" 
     android:enabled="false" 
     /> 


</LinearLayout>  
<ListView android:id="@android:id/list" android:layout_width="fill_parent" 
    android:layout_height="fill_parent" android:layout_weight="1" /> 

</LinearLayout> 

Esperanza esta ayuda