2014-06-16 1 views
6

Sto creando una vista elenco espandibile in Android. Ho aggiunto tre textview nel relativo layout e due pulsanti nel layout lineare orizzontale significa che questi due pulsanti sono aggiunti in una riga, quindi come posso fare clic su evento su quei due pulsanti?Come gestire l'evento click secondario in Expandablelistview in Android?

E voglio chiamare un'altra attività sul pulsante clic in visualizzazione elenco espandibile. Ma non ho trovato alcuna idea su come fare clic su child in ExpandableListView.

Ecco il mio file XML.

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:background="@android:color/white" 
    android:padding="2dp" > 

    <TextView 
     android:id="@+id/TextView_Projectdetails" 
     android:layout_width="match_parent" 
     android:layout_height="25dp" 
     android:background="@drawable/button_shape" 
     android:paddingLeft="10sp" 
     android:textColor="@android:color/black" /> 

    <TextView 
     android:id="@+id/textOne" 
     android:layout_width="match_parent" 
     android:layout_height="25dp" 
     android:layout_below="@+id/TextView_Projectdetails" 
     android:layout_marginTop="2dp" 
     android:background="@drawable/button_shape" 
     android:paddingLeft="10sp" 
     android:textColor="@android:color/black" > 
    </TextView> 

    <TextView 
     android:id="@+id/textTwo" 
     android:layout_width="match_parent" 
     android:layout_height="25dp" 
     android:layout_below="@+id/textOne" 
     android:layout_marginTop="2dp" 
     android:background="@drawable/button_shape" 
     android:paddingLeft="10sp" 
     android:textColor="@android:color/black" > 
    </TextView> 

    <LinearLayout 
     android:id="@+id/linearlAYOUT" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@+id/textTwo" 
     android:layout_marginTop="5dp" 
     android:orientation="horizontal" > 

     <Button 
      android:id="@+id/button_EditedTask" 
      android:layout_width="0dp" 
      android:layout_height="27dp" 
      android:layout_gravity="center" 
      android:layout_weight="1" 
      android:background="@drawable/button_shape_two" 
      android:gravity="center" 
      android:paddingBottom="3sp" 
      android:paddingTop="3sp" 
      android:text="ASSIGN TASK" 
      android:focusable="false"  
      android:textColor="@android:color/white" 
      android:textSize="12sp" 
      android:textStyle="normal" /> 

     <Button 
      android:id="@+id/buttonViewTask" 
      android:layout_width="0dp" 
      android:layout_height="27dp" 
      android:layout_gravity="center_vertical|center_horizontal" 
      android:layout_marginLeft="3dp" 
      android:layout_weight="1" 
      android:background="@drawable/button_shape_one" 
      android:gravity="center" 
      android:paddingBottom="3sp" 
      android:paddingTop="3sp" 
      android:text="VIEW TASK" 
      android:focusable="false"  
      android:textColor="@android:color/white" 
      android:textSize="12sp" 
      android:textStyle="normal" /> 
    </LinearLayout> 

</RelativeLayout> 

List_Group file XML -

<?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="wrap_content" 
    android:orientation="vertical" 
    android:padding="8dp" 
    android:background="#000000"> 


    <TextView 
     android:id="@+id/lblListHeader" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft" 
     android:textSize="17dp" 
     android:textColor="#f9f93d" /> 

</LinearLayout> 

ecco la mia ExpandableListAdapter classe -

public class ExpandableListAdapter extends BaseExpandableListAdapter { 

    private Context _context; 
    private List<String> _listDataHeader; // header titles 
    // child data in format of header title, child title 
    private HashMap<String, List<String>> _listDataChild; 
    Context context; 

    public ExpandableListAdapter(Context context, List<String> listDataHeader, 
      HashMap<String, List<String>> listChildData) { 
     this._context = context; 
     this._listDataHeader = listDataHeader; 
     this._listDataChild = listChildData; 
    } 

    public ExpandableListAdapter 
    (My_Project my_Project, List createGroupList, 
      int listGroup, String[] strings, int[] is, List createChildList, 
      int childItem, String[] strings2, int[] is2) 
    { 
     // TODO Auto-generated constructor stub 
    } 

    @Override 
    public Object getChild(int groupPosition, int childPosition) 
    { 
     //this.get(groupPosition).getChildren().get(childPosition); 
     String strchildPosition = this._listDataChild.get(this._listDataHeader.get(groupPosition)).get(childPosition); 
     System.out.println("Child Position =" + strchildPosition); 
     return this._listDataChild.get(this._listDataHeader.get(groupPosition)) 
       .get(childPosition); 
    } 

    @Override 
    public long getChildId(int groupPosition, int childPosition) { 
     return childPosition; 
    } 

    @Override 
    public View getChildView(int groupPosition, final int childPosition, 
      boolean isLastChild, View convertView, ViewGroup parent) { 

     final String childText = (String) getChild(groupPosition, childPosition); 

     if (convertView == null) { 
      LayoutInflater infalInflater = (LayoutInflater) this._context 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = infalInflater.inflate(R.layout.child_item, null); 
     } 

     TextView txtListChild = (TextView) convertView.findViewById(R.id.TextView_Projectdetails); 
     TextView txtOneListChild = (TextView)convertView.findViewById(R.id.textOne); 
     TextView txtTwoListChild = (TextView)convertView.findViewById(R.id.textTwo); 



     txtListChild.setText(childText); 
     txtOneListChild.setText(childText); 
     txtTwoListChild.setText(childText); 




     Button btnAssgnTask = (Button)convertView.findViewById(R.id.button_EditedTask); 
     btnAssgnTask.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       //Intent i=new Intent(context,Assign_Task.class); 
       //StartElementListener() 

      } 
     }); 


     Button btnViewTask = (Button)convertView.findViewById(R.id.buttonViewTask); 

     return convertView; 
    } 

    @Override 
    public int getChildrenCount(int groupPosition) { 
     return this._listDataChild.get(this._listDataHeader.get(groupPosition)) 
       .size(); 
    } 

    @Override 
    public Object getGroup(int groupPosition) { 
     return this._listDataHeader.get(groupPosition); 
    } 

    @Override 
    public int getGroupCount() { 
     return this._listDataHeader.size(); 
    } 

    @Override 
    public long getGroupId(int groupPosition) { 
     return groupPosition; 
    } 

    @Override 
    public View getGroupView(int groupPosition, boolean isExpanded, 
      View convertView, ViewGroup parent) { 
     String headerTitle = (String) getGroup(groupPosition); 
     if (convertView == null) { 
      LayoutInflater infalInflater = (LayoutInflater) this._context 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = infalInflater.inflate(R.layout.list_group, null); 
     } 

     TextView lblListHeader = (TextView) convertView 
       .findViewById(R.id.lblListHeader); 
     lblListHeader.setTypeface(null, Typeface.BOLD); 
     lblListHeader.setText(headerTitle); 

     return convertView; 
    } 

    @Override 
    public boolean hasStableIds() { 
     return false; 
    } 

    @Override 
    public boolean isChildSelectable(int groupPosition, int childPosition) { 
     return true; 
    } 

} 

Ecco il mio codice di attività -

public class My_Project extends ExpandableListActivity 
{ 


    expListView = (ExpandableListView) findViewById(android.R.id.list); 

     expListView.setOnGroupClickListener(new OnGroupClickListener() 
     { 
      @Override 
       public boolean onGroupClick(ExpandableListView parent, View v, 
         int groupPosition, long id) 
       { 
        return false; 
       } 
      }); 


      expListView.setOnGroupExpandListener(new OnGroupExpandListener() { 

       @Override 
       public void onGroupExpand(int groupPosition) { 
        Toast.makeText(getApplicationContext(), 
          dtrProjectNAmeSize.length + " Expanded", 
          Toast.LENGTH_SHORT).show(); 
       } 
      }); 


      expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() { 

       @Override 
       public void onGroupCollapse(int groupPosition) { 
        Toast.makeText(getApplicationContext(), 
          dtrProjectNAmeSize.length + " Collapsed", 
          Toast.LENGTH_SHORT).show(); 
       } 
      }); 


      expListView.setOnChildClickListener(new OnChildClickListener() { 

       @Override 
       public boolean onChildClick(ExpandableListView parent, View v, 
         int groupPosition, int childPosition, long id) { 
        // TODO Auto-generated method stub 

        int cp = (int) mAdapter.getChildId(groupPosition, childPosition); 
        if(cp == 3) 
        { 
         switch (cp) 
         { 
           case 3: 



           break; 

         } 
        } 


        return false; 

       } 
      }); 



      mAdapter = new SimpleExpandableListAdapter(
         this, 
         groupData, 
         R.layout.list_group, 
         new String[] { Project_Name }, 
         new int[] {R.id.lblListHeader }, 
         childData, 
         R.layout.child_item, 
         new String[] { Project_Date_Created , Project_End_Date , Project_Is_Active}, 
         new int[] { R.id.TextView_Projectdetails , R.id.textOne , R.id.textTwo } 
         ); 

       expListView.setAdapter(mAdapter); 

    } 



    } 

risposta

7

È possibile impostare setOnChildClickListener di chi d della listview espandibile, quindi è possibile passare all'altra attività in base al valore della lista di array utilizzata per creare listview espandibile.

  menuExpandableListView 
        .setOnChildClickListener(new ExpandableListView.OnChildClickListener() { 

         @Override 
         public boolean onChildClick(
           ExpandableListView parent, View v, 
           int groupPosition, int childPosition, 
           long id) { 
          GoCategory(mainMenusList.get(groupPosition) 
            .getPagesList().get(childPosition)); 
          return false; 
         } 
        }); 

Oppure si può fare questo

@Override 
public View getChildView(final int groupPosition, final int childPosition, 
     boolean isLastChild, View convertView, ViewGroup parent) { 
    Page page =(Page) getChild(groupPosition, childPosition); 
    convertView = inflater.inflate(R.layout.child_list_layout, null); 
    Button button1=(Button)convertView.findViewById(R.id.button1); 
    button1.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 

       Your code here.... 


     } 
    }); 

    return convertView; 
} 
+0

Che cos'è GoCategory. – tazeenmulani

+0

Questa è una funzione, in cui si desidera svolgere altre attività .... –

+0

@Ad Abdul Gafur, Ma devo aggiungere due pulsanti in una riga sulla visualizzazione elenco figlio affiancata, quindi come attivare l'evento click su quei pulsanti. – tazeenmulani

-2

Cosa stai cercando di fare qui-

expListView.setOnChildClickListener(new OnChildClickListener() { 

       @Override 
       public boolean onChildClick(ExpandableListView parent, View v, 
         int groupPosition, int childPosition, long id) { 
        // TODO Auto-generated method stub 

        int cp = (int) mAdapter.getChildId(groupPosition, childPosition); 
        if(cp == 3) 
        { 
         switch (cp) 
         { 
           case 3: 



           break; 

         } 
        } 


        return false; 

       } 
      }); 

Questo ascoltatore sta usando per la voce del bambino clic, chiamare startActivity(intent) in questa parte del codice .