zeigen zwei Schaltflächen am Boden in einem ListActivity

Question

ich this Tutorial verwenden und implementiert erfolgreich einen Code Daten in einer Aktivität (in Form von Dialog), die ListActivity

erstreckt Noch zu zeigen, ich bin immer Daten in ein unten Format unter Verwendung eines Dialog Thema

Nun würde ich gerne wissen, wie kann ich hinzufügen, zwei Tasten an der Unterseite?

Genau wie wir sehen in der Regel in Alertdialog (e): OK und Abbrechen

CountrycodeActivity.java:

public class CountrycodeActivity extends ListActivity { 

    public static String RESULT_CONTRYCODE = "countrycode"; 
    public String[] countrynames, countrycodes; 
    private TypedArray imgs; 
    private List<Country> countryList; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     populateCountryList(); 
     ArrayAdapter<Country> adapter = new CountryListArrayAdapter(this, countryList); 
     setListAdapter(adapter); 
     getListView().setOnItemClickListener(new AdapterView.OnItemClickListener() { 
      @Override 
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
       Country c = countryList.get(position); 
       Intent returnIntent = new Intent(); 
       returnIntent.putExtra(RESULT_CONTRYCODE, c.getCode()); 
       setResult(RESULT_OK, returnIntent); 
       imgs.recycle(); //recycle images 
       finish(); 
      } 
     }); 
    } 

    private void populateCountryList() { 
     countryList = new ArrayList<Country>(); 
     countrynames = getResources().getStringArray(R.array.country_names); 
     countrycodes = getResources().getStringArray(R.array.country_codes); 
     imgs = getResources().obtainTypedArray(R.array.country_flags); 
     for(int i = 0; i < countrycodes.length; i++){ 
      countryList.add(new Country(countrynames[i], countrycodes[i], imgs.getDrawable(i))); 
     } 
    } 

    public class Country { 
     private String name; 
     private String code; 
     private Drawable flag; 
     public Country(String name, String code, Drawable flag){ 
      this.name = name; 
      this.code = code; 
      this.flag = flag; 
     } 
     public String getName() { 
      return name; 
     } 
     public Drawable getFlag() { 
      return flag; 
     } 
     public String getCode() { 
      return code; 
     } 
    } 
} 

CountryListArrayAdapter.java:

public class CountryListArrayAdapter extends ArrayAdapter<CountrycodeActivity.Country> { 

    private final List<CountrycodeActivity.Country> list; 
    private final Activity context; 

    static class ViewHolder { 
     protected TextView name; 
     protected ImageView flag; 
    } 

    public CountryListArrayAdapter(Activity context, List<CountrycodeActivity.Country> list) { 
     super(context, R.layout.activity_countrycode_row, list); 
     this.context = context; 
     this.list = list; 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     View view = null; 

     if (convertView == null) { 
      LayoutInflater inflator = context.getLayoutInflater(); 
      view = inflator.inflate(R.layout.activity_countrycode_row, null); 
      final ViewHolder viewHolder = new ViewHolder(); 
      viewHolder.name = (TextView) view.findViewById(R.id.name); 
      viewHolder.flag = (ImageView) view.findViewById(R.id.flag); 
      view.setTag(viewHolder); 
     } else { 
      view = convertView; 
     } 

     ViewHolder holder = (ViewHolder) view.getTag(); 
     holder.name.setText(list.get(position).getName()); 
     holder.flag.setImageDrawable(list.get(position).getFlag()); 
     return view; 
    } 
} 

Answer 1

diese hinzufügen zwei Zeilen in Ihrem Listenansicht

android:layout_height="0sp" 
    android:layout_weight="1" 

und unterhalb des Listenansicht hinzufügen, um dieses lineare Layout

<LinearLayout 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal"> 

    <Button 
     android:layout_width="0sp" 
     android:layout_weight="1" 
     android:layout_height="wrap_content" /> 

    <Button 
     android:layout_width="0sp" 
     android:layout_weight="1" 
     android:layout_height="wrap_content" /> 

</LinearLayout> 

Answer 2

Da es Sie scheint verwenden die Dialog-Schnittstelle können Sie setPositiveButton und setNegativeButton und dementsprechend die Klick Hörer eingestellt.