How to implement static broadcast listener on Android

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/**
  * This example will record the frequency at which a statically registered broadcast is heard.  <br/>
  * 1. Create a table {ACTION_NAME broadcast name, LAST_TIME latest occurrence time, total number of times COUNT recorded}<br/>
  * 2. Listen to the broadcast in ActionReceiver and record it.  <br/>
  * 3. Update database records in DBContentProvider<br/>
  * 4. Listen to the changes in the database in the middle,
  * And use the Handler mechanism to display the latest situation on txtInfo.  <br/>
  * Basic database operations will be implemented.
  *
  * @author Sodino
  */
public class BroadcastActionRecordAct extends Activity implements
   {
 private TextView txtInfo;
 private DatabaseOpenHelper dbHelper;
 private Button btnRefresh;
 /** clear function is not perfect.  */
 private Button btnClear;
 private Handler handler = new Handler() {
  public void handleMessage(Message msg) {
   String info = (String) ;
   (info);
  }
 };
 @Override
 public void onCreate(Bundle savedInstanceState) {
  (savedInstanceState);
  LayoutParams lpPC = new LayoutParams(LayoutParams.FILL_PARENT,
    LayoutParams.WRAP_CONTENT);
  LayoutParams lpCC = new LayoutParams(LayoutParams.WRAP_CONTENT,
    LayoutParams.WRAP_CONTENT);
  btnRefresh = new Button(this);
  (lpCC);
  ("Refresh");
  (this);
  btnClear = new Button(this);
  (lpCC);
  ("ClearTable");
  (this);
  LinearLayout subLayout = new LinearLayout(this);
  (lpPC);
  ();
  (btnRefresh);
  (btnClear);
  txtInfo = new TextView(this);
  (lpPC);
  (0xff0000ff);
  (0xffffffff);
  ("Starting...");
  (15);
  ScrollView scrollView = new ScrollView(this);
  (lpPC);
  (txtInfo);
  LinearLayout mainLayout = new LinearLayout(this);
  (lpPC);
  ();
  (subLayout);
  (scrollView);
  setContentView(mainLayout);
  dbHelper = new DatabaseOpenHelper(this);
  ContentResolver contentResolver = getContentResolver();
  (DBContentProvider.CONTENT_URI,
    false, new ActionDBObserver(handler));
 }
 public void onClick(View view) {
  if (view == btnRefresh) {
   refreshRecord();
  } else if (view == btnClear) {
   clearRecord();
  }
 }
 public void refreshRecord() {
  ();
  String info = ();
  ();
  if (info != null) {
   (info);
  } else {
   ("&lt;NULL/&gt;");
  }
  ();
 }
 public void clearRecord() {
  ();
  ();
  ();
 }
 private class ActionDBObserver extends ContentObserver {
  private Handler handler;
  public ActionDBObserver(Handler handler) {
   super(handler);
    = handler;
  }
  public void onChange(boolean selfChange) {
   (selfChange);
   String[] projection = { "ACTION_NAME", "LAST_TIME", "COUNT" };
   // String selection = "select * from ActionTable";
   String sortOrder = "COUNT DESC";
   // ();
   // Cursor cursor = (projection, null, null,
   // sortOrder);
   Cursor cursor = managedQuery(DBContentProvider.CONTENT_URI,
     projection, null, null, sortOrder);
   String info = "";
   String line = "";
   int actionIdx = 0;
   int timeIdx = 1;
   int countIdx = 2;
   while (()) {
    line += (actionIdx) + " ";
    line += (timeIdx) + " ";
    line += (countIdx) + "/n";
    info += line;
    line = "";
   }
   Message msg = new Message();
    = info;
   (msg);
   ();
   // ();
   ("Database does changed!!!");
  }
  public boolean deliverSelfNotifications() {
   return ();
  }
 }
}