Java 如何在Android中将SQLite数据显示到可扩展列表视图中？

我正在Android应用程序中创建可扩展列表视图，我想在可扩展列表视图中显示所有Sqlite数据，并在子视图中显示Sqlite数据库。我正在尝试在可扩展列表视图中显示数据，但它不会获取可扩展列表视图中的所有数据

在中，我只获得了listDataHeader中的第一个列名，但我还希望获取每个子视图中的所有详细信息

public class My_Project extends Activity
{
    ExpandableListAdapter listAdapter;
    ExpandableListView expListView;
    List<String> listDataHeader;
    HashMap<String, List<String>> listDataChild;
    DBHelper databaseHelper;
    SQLiteDatabase db;
    Adapter adp;
    Cursor mGroupsCursor;


    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.my_project);
        databaseHelper = new DBHelper(this);
        databaseHelper.onOpen(db);
        expListView = (ExpandableListView) findViewById(R.id.ProjectExpandeble_ListView);
        fillData();


        // get the listview
            //expListView = (ExpandableListView) findViewById(R.id.ProjectExpandeble_ListView);

            listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);

            // setting list adapter
            //expListView.setAdapter(listAdapter);

            // Listview Group click listener
            expListView.setOnGroupClickListener(new OnGroupClickListener() {

                @Override
                public boolean onGroupClick(ExpandableListView parent, View v,
                        int groupPosition, long id) {
                    // Toast.makeText(getApplicationContext(),
                    // "Group Clicked " + listDataHeader.get(groupPosition),
                    // Toast.LENGTH_SHORT).show();
                     parent.smoothScrollToPosition(groupPosition);
                    return false;
                }
            });

            // Listview Group expanded listener
            expListView.setOnGroupExpandListener(new OnGroupExpandListener() {

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

            // Listview Group collasped listener
            expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {

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

                }
            });

            // Listview on child click listener
            expListView.setOnChildClickListener(new OnChildClickListener() {

                @Override
                public boolean onChildClick(ExpandableListView parent, View v,
                        int groupPosition, int childPosition, long id) {
                    // TODO Auto-generated method stub
                    Toast.makeText(
                            getApplicationContext(),
                            listDataHeader.get(groupPosition)
                                    + " : "
                                    + listDataChild.get(
                                            listDataHeader.get(groupPosition)).get(
                                            childPosition), Toast.LENGTH_SHORT)
                            .show();
                    return false;
                }
            });
        }



     private void fillData() { 
            // set list adapter here

           mGroupsCursor = databaseHelper.fetchGroup();
           this.startManagingCursor(mGroupsCursor);
            mGroupsCursor.moveToFirst();

            expListView = (ExpandableListView) this.findViewById(R.id.ProjectExpandeble_ListView);

            MyExpandableListAdapter  mAdapter = new MyExpandableListAdapter(mGroupsCursor, this,
                R.layout.list_group,                     // Your row layout for a group
                R.layout.child_item,                 // Your row layout for a child
                new String[] { "project_name" },                      // Field(s) to use from group cursor
                new int[] { R.id.lblListHeader},                 // Widget ids to put group data into
                new String[] { "project_id", "project_name", "project_date_created", "project_end_date", "IsActive"},  // Field(s) to use from child cursors
                new int[] { R.id.TextView_Projectdetails, R.id.textOne, R.id.textTwo, R.id.textthree, R.id.textFour });          // Widget ids to put child data into

            expListView.setAdapter(mAdapter);                         // set the list adapter.
            }

        /*private void prepareListData() 
        {
            databaseHelper = new DBHelper(this);
            databaseHelper.onOpen(db);

            listDataHeader = new ArrayList<String>();
            listDataHeader = databaseHelper.getAllProjects();
            listDataChild = new HashMap<String, List<String>>();

            // Adding child data
            List<String> top250 = new ArrayList<String>();
            //top250 = databaseHelper.getAllProjects();
            //top250.add("The Shawshank Redemption");

            listDataChild.put(listDataHeader.get(0), top250); // Header, Child data
            listDataChild.putAll(listDataChild);
        }
         */
          public class MyExpandableListAdapter extends SimpleCursorTreeAdapter {
                // Your adapter

                 public MyExpandableListAdapter(Cursor cursor, Context context,int groupLayout, 
                            int childLayout, String[] groupFrom, int[] groupTo, String[] childrenFrom, 
                            int[] childrenTo) {
                                super(context, cursor, groupLayout, groupFrom, groupTo,
                                      childLayout, childrenFrom, childrenTo);
                            }


                        @Override
                        protected Cursor getChildrenCursor(Cursor groupCursor) {
                            Cursor childCursor = databaseHelper.fetchChildren(groupCursor.getString(groupCursor.getColumnIndex("project_name")));            
                            My_Project.this.startManagingCursor(childCursor);
                            childCursor.moveToFirst();
                            return childCursor;

            }

          }

}

---

您应该在程序输出中使用以下链接您好，我使用了您的代码，但我的应用程序在运行时崩溃。我收到运行时异常。我发布了上面的日志猫信息。请给我建议。谢谢回复。有人能帮我解决这个问题吗。可扩展列表视图。@Jay，请给我解决方案我只在lableHeader中获得了第一个列名，但当我单击lableHeader应用程序时未获得所有子视图get crash listview未展开。请帮助我。请在此处发布您活动的代码。。。

06-13 15:23:20.193: W/dalvikvm(17071): threadid=1: thread exiting with uncaught exception (group=0x40015560)
06-13 15:23:20.203: E/AndroidRuntime(17071): FATAL EXCEPTION: main
06-13 15:23:20.203: E/AndroidRuntime(17071): java.lang.IllegalStateException: get field slot from row 0 col -1 failed
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.database.CursorWindow.getLong_native(Native Method)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.database.CursorWindow.getLong(CursorWindow.java:380)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.database.AbstractWindowedCursor.getLong(AbstractWindowedCursor.java:108)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.widget.CursorTreeAdapter$MyCursorHelper.getId(CursorTreeAdapter.java:437)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.widget.CursorTreeAdapter.getGroupId(CursorTreeAdapter.java:192)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.widget.ExpandableListConnector.getItemId(ExpandableListConnector.java:421)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.widget.AbsListView$PerformClick.run(AbsListView.java:1812)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.os.Handler.handleCallback(Handler.java:587)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.os.Handler.dispatchMessage(Handler.java:92)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.os.Looper.loop(Looper.java:123)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at android.app.ActivityThread.main(ActivityThread.java:3683)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at java.lang.reflect.Method.invokeNative(Native Method)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at java.lang.reflect.Method.invoke(Method.java:507)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-13 15:23:20.203: E/AndroidRuntime(17071):    at dalvik.system.NativeStart.main(Native Method)