Android Open Source - wtui W T Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.example.wtui;
// ww w .  j av  a  2  s.com
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

public class WTActivity extends Activity {

  TextView txt_status ;
  int q = FSM.NO_STATE ;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_wt);
    txt_status = (TextView)findViewById(R.id.txt_status);
    FSM.initialize();
    fsm(FSM.LAUNCH);
    writeDebug("onCreate");
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.wt, menu);

    //invalidateOptionsMenu();

    return true;
  }
  
  @Override
  public boolean onPrepareOptionsMenu(Menu menu) {
    boolean r = super.onPrepareOptionsMenu(menu);
    menu.findItem(R.id.action_stop).setVisible(false);
    menu.findItem(R.id.action_talk).setVisible(false);

    switch(q) {
    case(FSM.IDLE) :
      menu.findItem(R.id.action_talk).setVisible(true);
      break;
    case(FSM.TX) :
      menu.findItem(R.id.action_stop).setVisible(true);
      break;
    case(FSM.RX) :
      break;
    case(FSM.EXIT_STATE) :
      break;
    }
    
    return r ;
  }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
      switch(item.getItemId()) {
      case(R.id.action_talk) :
        fsm(FSM.TX);
        break;
      case(R.id.action_stop) :
        fsm(FSM.TX_END);
        break;
      default :
        return super.onOptionsItemSelected(item);
      }

      return true;
    }
  
  void fsm(int a) {
    int pre_q = q ;
    int q_ = FSM.transition(q, a);
    writeDebug("state transition : "+pre_q+"/"+a+"->"+q_);
    if(q_==FSM.ERROR_STATE)//something went wrong, no state change should occur
      return ;
    else
      q = q_ ;
    
    switch(q) {
    case(FSM.IDLE) :
      //TODO stop running threads
      //TODO cleanup garbage
      //TODO update UI
        invalidateOptionsMenu();
      txt_status.setText("Idle");
      break;
    case(FSM.RX) :
      //TODO start rx worker threads
      //TODO update UI
        invalidateOptionsMenu();
      txt_status.setText("Receiving");
      break;
    case(FSM.TX) :
      //TODO start tx worker threads
      //TODO update UI
        invalidateOptionsMenu();
      txt_status.setText("Talking");
      break;
    case(FSM.EXIT_STATE) :
      //TODO stop running threads if any
      //TODO update UI
      txt_status.setText("Exiting");
      //TODO exit app
      break;
    }
  }
  
  public static void writeDebug(String s) {
    Log.d("wtui", s);
  }
}

Java Source Code List

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