package com.iteedu.www; import java.util.ArrayList; import java.util.HashMap; import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.os.Bundle; import android.provider.ContactsContract; import android.view.View; import android.widget.AdapterView; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.TextView; import android.widget.AdapterView.OnItemClickListener; public class GroupContactListActivity extends Activity{ /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Cursor cur = this.getContentResolver().query( ContactsContract.Groups.CONTENT_URI, null, null, null, null); int columnNumber = cur.getColumnCount(); String cn = ""; for (int i = 0; i < columnNumber; i++) { String temp = cur.getColumnName(i); cn = cn + "\nlistColumnNames" + i + "\t" + temp; } cur.close(); TextView tv = new TextView(this); tv.setText(cn); setContentView(tv); } }