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POAndroid ExpandableListVIew using BaseExpandableListAdapter
 

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  1. POAndroid ExpandableListVIew using BaseExpandableListAdapter
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    <p>I am using MyExpandableListAdapter that extends BaseExpandableListAdapter and I implement all methods of BaseExpandableListAdapter in my adapter,I create MyExpadableListActivity that extends ExpandableListActivity. MyExpandableListAdapter is the inner class of MyExpadableListActivity. I am using a xml views for adding childs and groupd UI(past in below). As I run application its display fine. My problem is this this I override the method onChildClick (....) of ExpandableListActivity in MyExpadableListActivity .when I run my code it can't go for onChildClick method . how I can implement onChildClick (...) method using this situation or else suggestion .. Hope someone point me what I am doing wrong .... Be grateful for if anyone point how i can achieve solution . . </p> <pre><code>public class MyExpadableListActivity extends ExpandableListActivity implements ExpandableListView.OnChildClickListener { ExpandableListAdapter mAdapter; Context mContext; static final String groups[] = { "Chats", "Contacts (289)", "Group Chat (7)", "e-Card (137)", "Pending (37)", "Bookmarks" }; static final String children[][] = { { "ListofChats" }, { "Group", "groupt01", "groupt02", "groupt03" }, { "Groupd 01", "", "Group 02", "", "Group 03", "" }, { "E-Card-01", "", "E-Card-02", "", "Business Card Received", "" }, { " Req", "", " Req", "", " Req", "" } }; private static final String TAG = "Hookup"; XMPPConnection connection = SignInMainActivity.connection; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mAdapter = new MyExpandableListAdapter(this); setListAdapter(mAdapter); registerForContextMenu(getExpandableListView()); } @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { // TODO Auto-generated method stub System.out.println("Insidded onContextItemSelected"); return super.onChildClick(parent, v, groupPosition, childPosition, id); } @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { menu.setHeaderTitle("Hookup Menu"); menu.add(0, 0, 0, R.string.hello); } public boolean onContextItemSelected(MenuItem item) { System.out.println("Insidded onContextItemSelected"); Log.i(TAG, "onContextItemSelected"); ExpandableListContextMenuInfo info = (ExpandableListContextMenuInfo) item .getMenuInfo(); String title = ((TextView) info.targetView).getText().toString(); int type = ExpandableListView .getPackedPositionType(info.packedPosition); if (type == ExpandableListView.PACKED_POSITION_TYPE_CHILD) { int groupPos = ExpandableListView .getPackedPositionGroup(info.packedPosition); int childPos = ExpandableListView .getPackedPositionChild(info.packedPosition); Toast.makeText(this,title + ": Child " + childPos + " clicked in group " + groupPos, Toast.LENGTH_SHORT).show(); return true; } else if (type == ExpandableListView.PACKED_POSITION_TYPE_GROUP) { int groupPos = ExpandableListView .getPackedPositionGroup(info.packedPosition); Toast.makeText(this, title + ": Group " + groupPos + " clicked", Toast.LENGTH_SHORT).show(); return true; } return false; } public class MyExpandableListAdapter extends BaseExpandableListAdapter { Context mContext; public MyExpandableListAdapter() { // TODO Auto-generated constructor stub } public MyExpandableListAdapter(Context context) { mContext = context; } public Object getChild(int groupPosition, int childPosition) { Log.i(TAG, "getChild"); return children[groupPosition][childPosition]; } public long getChildId(int groupPosition, int childPosition) { Log.i(TAG, "getChildId"); return childPosition; } public int getChildrenCount(int groupPosition) { Log.i(TAG, "getChildId"); return children[groupPosition].length; } public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { Log.i(TAG, "getChildView"); LayoutInflater layoutInflater = (LayoutInflater) mContext .getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = null; TextView tt = null; if (groupPosition == 4) { v = layoutInflater.inflate(R.layout.button_group, null); } else { v = layoutInflater.inflate(R.layout.album_row, null); tt = (TextView) v.findViewById(R.id.text1); String myText = this.getChild(groupPosition, childPosition) .toString(); tt.setText(myText); CheckBox cb = (CheckBox) v.findViewById(R.id.checkbox); cb.setVisibility(View.VISIBLE); if (groupPosition == 0) { ImageView icon = (ImageView) v.findViewById(R.id.rowicon); icon.setImageResource(R.drawable.add_picture); } else { ImageView icon = (ImageView) v.findViewById(R.id.rowicon); icon.setImageResource(R.drawable.add_picture); } } return v; } public Object getGroup(int groupPosition) { Log.i(TAG, "getGroup"); return groups[groupPosition]; } public int getGroupCount() { Log.i(TAG, "getGroupCount"); return groups.length; } public long getGroupId(int groupPosition) { Log.i(TAG, "getGroupId"); return groupPosition; } public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { TextView groupTitle = null; ImageView imgDot; LayoutInflater layoutInflater = (LayoutInflater) mContext .getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = null; v = layoutInflater.inflate(R.layout.button_group, null); groupTitle = (TextView) v.findViewById(R.id.TextView01); String myText = this.getGroup(groupPosition).toString(); groupTitle.setText(myText); imgDot = (ImageView) v.findViewById(R.id.ImageView01); imgDot.setVisibility(View.VISIBLE); return v; } public boolean isChildSelectable(int groupPosition, int childPosition) { Log.i(TAG, "isChildSelectable"); return true; } public boolean hasStableIds() { Log.i(TAG, "hasStableIds"); return true; } public void registerDataSetObserver(DataSetObserver observer) { } } // closing of MyExpandableListAdapter } // closing of MyExpadableListActivity </code></pre> <p>My xml views are as below </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:minHeight="?android:attr/listPreferredItemHeight" android:gravity="center_vertical" android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft" android:paddingRight="?android:attr/scrollbarSize" android:layout_weight="1" android:background="#fafafa"&gt; &lt;ImageView android:id="@+id/rowicon" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="6dip" /&gt; &lt;TextView android:id="@+id/text1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" /&gt; &lt;CheckBox android:id="@+id/checkbox" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="2dip" android:focusable="true" android:clickable="true" android:gravity="center_vertical" android:orientation="vertical" android:duplicateParentState="true" android:visibility="visible" android:text="myTest" /&gt; &lt;/LinearLayout&gt; </code></pre> <p>and </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:minHeight="?android:attr/listPreferredItemHeight" android:gravity="center_vertical" android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft" android:paddingRight="?android:attr/scrollbarSize" android:layout_weight="1" android:background="#fafafa"&gt; </code></pre> <p> </p>
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