Question

我有一个带有TextViews，ImageViews的视图......但我想使用ExpandableList包含一些数据。我不知道如何在我的View中将此ExpandableList与其他数据包含在一起。

我的目标：

MyView

我在一个视图中拥有除ExpandableList之外的所有组件，我在其他Activity中有：

OfferDetailsActivity （这是显示视图的活动，我想从这里调用ExpandableList）

public class OfferDetailsActivity extends Activity{

final public static String OFERTA = "oferta";
private Oferta oferta = null;

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);     
    setContentView(R.layout.offer_details);             

    oferta = (Oferta)getIntent().getExtras().getParcelable(OFERTA);

    View view = new View(this.getBaseContext());

    LayoutInflater linflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    view = linflater.inflate(R.layout.offer_details, null);

    // poblamos la lista de elementos           
    TextView precio = (TextView)view.findViewById(R.id.precio_offer_details);
    precio.setText(oferta.getPrecio());

    ImageView imagen = (ImageView) view.findViewById(R.id.imagen_offer_details);
    imagen.setImageBitmap(new GetImages().downloadFile(oferta.getImagen()));

    TextView cabecera = (TextView)view.findViewById(R.id.cabecera_offer_details);
    cabecera.setText(oferta.getCabecera());

    TextView descripcion = (TextView)view.findViewById(R.id.descripcion_offer_details);
    descripcion.setText(oferta.getDescripcion());                                                   

    setContentView(view);

}

}

ExpandableList

public class ExpandableList extends ExpandableListActivity {

@SuppressWarnings("unchecked")
public void onCreate(Bundle savedInstanceState) {
    try{
         super.onCreate(savedInstanceState);
         setContentView(R.layout.offer_details);

    SimpleExpandableListAdapter expListAdapter =
        new SimpleExpandableListAdapter(
                this,
                createGroupList(),              // Creating group List.
                R.layout.group_row,             // Group item layout XML.           
                new String[] { "Group Item" },  // the key of group item.
                new int[] { R.id.row_name },    // ID of each group item.-Data under the key goes into this TextView.                   
                createChildList(),              // childData describes second-level entries.
                R.layout.child_row,             // Layout for sub-level entries(second level).
                new String[] {"Sub Item"},      // Keys in childData maps to display.
                new int[] { R.id.grp_child}     // Data under the keys above go into these TextViews.
            );
        setListAdapter( expListAdapter );       // setting the adapter in the list.

    }catch(Exception e){
        System.out.println("Errrr +++ " + e.getMessage());
    }
}

/* Creating the Hashmap for the row */
@SuppressWarnings("unchecked")
private List createGroupList() {
      ArrayList result = new ArrayList();
      for( int i = 0 ; i < 15 ; ++i ) { // 15 groups........
        HashMap m = new HashMap();
        m.put( "Group Item","Group Item " + i ); // the key and it's value.
        result.add( m );
      }
      return (List)result;
}

/* creatin the HashMap for the children */
@SuppressWarnings("unchecked")
private List createChildList() {

    ArrayList result = new ArrayList();
    for( int i = 0 ; i < 15 ; ++i ) { // this -15 is the number of groups(Here it's fifteen)
      /* each group need each HashMap-Here for each group we have 3 subgroups */
      ArrayList secList = new ArrayList(); 
      for( int n = 0 ; n < 3 ; n++ ) {
        HashMap child = new HashMap();
        child.put( "Sub Item", "Sub Item " + n );           
        secList.add( child );
      }
     result.add( secList );
    }        
    return result;
}
public void  onContentChanged  () {
    System.out.println("onContentChanged");
    super.onContentChanged();         
}
/* This function is called on each child click */
public boolean onChildClick( ExpandableListView parent, View v, int groupPosition,int childPosition,long id) {
    System.out.println("Inside onChildClick at groupPosition = " + groupPosition +" Child clicked at position " + childPosition);
    return true;
}

/* This function is called on expansion of the group */
public void  onGroupExpand  (int groupPosition) {
    try{
         System.out.println("Group exapanding Listener => groupPosition = " + groupPosition);
    }catch(Exception e){
        System.out.println(" groupPosition Errrr +++ " + e.getMessage());
    }
}

}

offer_details.xml

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

<TableRow>   
    <TextView android:id="@+id/precio_offer_details"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textStyle="bold"
        android:textSize="12px" />

    <TextView android:id="@+id/cabecera_offer_details"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textStyle="bold"
        android:textSize="12px" />                      
</TableRow>

<TableRow>        
    <ImageView android:id="@+id/imagen_offer_details"        
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" /> 

    <TextView android:id="@+id/descripcion_offer_details"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textStyle="normal"
        android:textSize="10px" />                                          
</TableRow>                               

<TextView android:id="@+id/texto3"      
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textStyle="normal"
    android:textSize="10px" 
    android:text="texto3"/>

<TextView android:id="@+id/texto4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textStyle="normal"
    android:textSize="10px" 
    android:text="texto4"/>

Answer 1

将代码从可扩展列表活动移动到另一个qctivity中，并将必要的位放在其他活动XML文件中，你应该没问题......你遇到的一些问题会阻止你这样做吗？ / p>

如何在视图中包含ExpandableListActivity

1 个答案: