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POAndroid ExpandableListView CheckBox Select Only Clicked Checkbox
 

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    <p>I have a quick question on <code>ExpandableListViews</code> and using <code>CheckBoxes</code>. I will show the current code below. I currently have a <code>ExpandableListView</code> with a checkbox in each child row. </p> <p>These <code>checkboxes</code> can be selected and such but the problem is I have many children in my <code>ExpandableListView</code>. So the problem is that when I check on box, it shows that more than one checkbox is selected. So if I check the first child checkbox it also shows that the 6th or 7th child is also selected. </p> <pre><code>package com.WebGems.MW3CustomClasses; import java.util.ArrayList; import java.util.HashMap; import java.util.Map; import android.app.Activity; import android.content.Context; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.CheckBox; import android.widget.ExpandableListView; import android.widget.ExpandableListView.OnChildClickListener; import android.widget.ImageView; import android.widget.SimpleExpandableListAdapter; import android.widget.TextView; public class PrimaryWeapon extends Activity { ExpandableListView listPrimaryWeapon; //Strike Package ArrayLists ArrayList assaultPackage = new ArrayList(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.primary_weapon); listPrimaryWeapon = (ExpandableListView)findViewById(R.id.listView1); Bundle extras = getIntent().getExtras(); String type = extras.getString("type"); if(type.equals("assault")) { showAssaultPackageList(); } } private void showAssaultPackageList() { // TODO Auto-generated method stub assaultPackage.add("UAV"); assaultPackage.add("CARE PACKAGE"); assaultPackage.add("I.M.S."); assaultPackage.add("PREDATOR MISSILE"); assaultPackage.add("SENTRY GUN"); assaultPackage.add("PRECISION AIRSTRIKE"); assaultPackage.add("ATTACK HELICOPTER"); assaultPackage.add("STRAFE RUN"); assaultPackage.add("AH-6 OVERWATCH"); assaultPackage.add("REAPER"); assaultPackage.add("ASSAULT DRONE"); assaultPackage.add("AC-130"); assaultPackage.add("PAVE LOW"); assaultPackage.add("JUGGERNAUT"); assaultPackage.add("OSPREY GUNNER"); // Construct Expandable List final String NAME = "name"; final String IMAGE = "image"; final String DATA = "data"; final String NUMBER = "number"; final LayoutInflater layoutInflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); final ArrayList&lt;HashMap&lt;String, String&gt;&gt; headerData = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); final HashMap&lt;String, String&gt; group1 = new HashMap&lt;String, String&gt;(); group1.put(NAME, "Assault Package"); headerData.add( group1 ); final ArrayList&lt;ArrayList&lt;HashMap&lt;String, Object&gt;&gt;&gt; childData = new ArrayList&lt;ArrayList&lt;HashMap&lt;String, Object&gt;&gt;&gt;(); final ArrayList&lt;HashMap&lt;String, Object&gt;&gt; group1data = new ArrayList&lt;HashMap&lt;String, Object&gt;&gt;(); childData.add(group1data); int assaultPackageCounter = 0; for(int arm = 0; arm &lt; assaultPackage.size(); ++arm) { final HashMap&lt;String, Object&gt; assaultPackageMap = new HashMap&lt;String, Object&gt;(); assaultPackageMap.put(NAME, assaultPackage.get(arm)); if(assaultPackageCounter == 0) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.uav)); assaultPackageMap.put(DATA, "UAV DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.three)); } if(assaultPackageCounter == 1) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.carepackage)); assaultPackageMap.put(DATA, "CARE PACKAGE DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.four)); } if(assaultPackageCounter == 2) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.ims)); assaultPackageMap.put(DATA, "IMS DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.five)); } if(assaultPackageCounter == 3) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.predatormissile)); assaultPackageMap.put(DATA, "PREDATOR MISSILE DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.five)); } if(assaultPackageCounter == 4) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.sentrygun)); assaultPackageMap.put(DATA, "SENTRY GUN DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.five)); } if(assaultPackageCounter == 5) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.precisionairstrike)); assaultPackageMap.put(DATA, "PRECISION AIRSTRIKE DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.six)); } if(assaultPackageCounter == 6) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.attackhelicopter)); assaultPackageMap.put(DATA, "ATTACK HELICOPTER DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.seven)); } if(assaultPackageCounter == 7) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.straferun)); assaultPackageMap.put(DATA, "STRAFE RUN DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.nine)); } if(assaultPackageCounter == 8) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.ahsixoverwatch)); assaultPackageMap.put(DATA, "AH-6 OVERWATCH DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.nine)); } if(assaultPackageCounter == 9) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.reaper)); assaultPackageMap.put(DATA, "REAPER DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.nine)); } if(assaultPackageCounter == 10) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.assaultdrone)); assaultPackageMap.put(DATA, "ASSAULT DRONE DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.ten)); } if(assaultPackageCounter == 11) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.aconethreezero)); assaultPackageMap.put(DATA, "AC-130 DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.twelve)); } if(assaultPackageCounter == 12) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.pavelow)); assaultPackageMap.put(DATA, "PAVE LOW DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.twelve)); } if(assaultPackageCounter == 13) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.juggernaut)); assaultPackageMap.put(DATA, "JUGGERNAUT DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.fifteen)); } if(assaultPackageCounter == 14) { assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.ospreygunner)); assaultPackageMap.put(DATA, "OSPREY GUNNER DESCRIPTION"); assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.seventeen)); } assaultPackageCounter++; group1data.add(assaultPackageMap); } assaultPackageCounter = 0; // Set up some sample data in both groups /*for( int i=0; i&lt;10; ++i) { final HashMap&lt;String, Object&gt; map = new HashMap&lt;String,Object&gt;(); map.put(NAME, "Child " + i ); //map.put(DATA, "Data " + i); map.put(IMAGE, getResources().getDrawable((i%3==0? R.drawable.arrowright : R.drawable.arrowdown))); ( i%2==0 ? group1data : group2data ).add(map); }*/ listPrimaryWeapon.setAdapter( new SimpleExpandableListAdapter( this, headerData, R.layout.group_row, new String[] { NAME, DATA }, // the names of the data new int[] { R.id.groupname }, // the text field to populate with the field data childData, 0, null, new int[] {} ) { @Override public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { final View v = super.getChildView(groupPosition, childPosition, isLastChild, convertView, parent); // Populate your custom view here ((TextView)v.findViewById(R.id.name)).setText( (String) ((Map&lt;String,Object&gt;)getChild(groupPosition, childPosition)).get(NAME) ); ((TextView)v.findViewById(R.id.textView1)).setText( (String) ((Map&lt;String,Object&gt;)getChild(groupPosition, childPosition)).get(DATA) ); ((ImageView)v.findViewById(R.id.image)).setImageDrawable( (Drawable) ((Map&lt;String,Object&gt;)getChild(groupPosition, childPosition)).get(IMAGE) ); ((ImageView)v.findViewById(R.id.imageView1)).setImageDrawable( (Drawable) ((Map&lt;String,Object&gt;)getChild(groupPosition, childPosition)).get(NUMBER) ); CheckBox cb = (CheckBox)v.findViewById( R.id.checkBox1 ); cb.setClickable(false); return v; } @Override public View newChildView(boolean isLastChild, ViewGroup parent) { return layoutInflater.inflate(R.layout.strikepackagelayout, null, false); } } ); ExpandableListView list = (ExpandableListView) findViewById(R.id.listView1); list.setChoiceMode(ExpandableListView.CHOICE_MODE_MULTIPLE); list.setOnChildClickListener(new OnChildClickListener(){ public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { CheckBox cb = (CheckBox)v.findViewById( R.id.checkBox1 ); if(cb != null){ cb.toggle(); } Log.d("type", "Group: " + groupPosition + ", Child: " + childPosition); System.out.println("Group:"+groupPosition+", Child: "+childPosition); return true; } }); listPrimaryWeapon.expandGroup(0); } } </code></pre>
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