Android Open Source - Telegue Main Activity

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Back to project page Telegue.

License

The source code is released under:

Apache License

Java Source Code

package maximsblog.blogspot.com.telegue;
/*w w  w  .  ja va2 s  .  co m*/
import maximsblog.blogspot.com.telegue.TrackJoystickView.OnTrackJoystickViewMoveListener;


import org.json.JSONException;
import org.json.JSONObject;

import com.gstreamer.GStreamer;


import android.os.Bundle;
import android.preference.PreferenceManager;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnTrackJoystickViewMoveListener, SurfaceHolder.Callback {

  String mWSuri;
  private Virt2Real mVirt2real;
  private IntentFilter mIntentFilter;
  private long mTimeout;
  // gstreamer
  private native void nativeInit();     // Initialize native code, build pipeline, etc
    private native void nativeFinalize(); // Destroy pipeline and shutdown native code
    private native void nativePlay();     // Set pipeline to PLAYING
    private native void nativePause();    // Set pipeline to PAUSED
    private static native boolean nativeClassInit(); // Initialize native class: cache Method IDs for callbacks
    private native void nativeSurfaceInit(Object surface);
    private native void nativeSurfaceFinalize();
    private long native_custom_data;      // Native code will use this to keep private data
    private boolean is_playing_desired;   // Whether the user asked to go to PLAYING
  

    static {
        System.loadLibrary("gstreamer_android");
        System.loadLibrary("telegue");
        nativeClassInit();
    }

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // Initialize GStreamer and warn if it fails
        try {
            GStreamer.init(this);
        } catch (Exception e) {
            Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
            finish(); 
            return;
        }
    setContentView(R.layout.activity_main);
    getActionBar().setTitle("");
    SurfaceView sv = (SurfaceView) this.findViewById(R.id.surface_video);
        SurfaceHolder sh = sv.getHolder();
        sh.addCallback(this);
        mVirt2real = App.virt2real;
        // init video receive
        is_playing_desired = mVirt2real.isConnected();    
        nativeInit();
        // init controls
    TrackJoystickView joystick = (TrackJoystickView) findViewById(R.id.joystickView);
    joystick.setOnTrackJoystickViewMoveListener(this, TrackJoystickView.DEFAULT_LOOP_INTERVAL);
    // set receive msg from virt2real
    mIntentFilter = new IntentFilter();
    mIntentFilter.addAction(Virt2Real.CONNECT);
    mIntentFilter.addAction(Virt2Real.DISCONNECT);
    mIntentFilter.addAction(Virt2Real.ERROR);
    mIntentFilter.addAction(Virt2Real.STATUS);
    registerReceiver(mIntentReceiver, mIntentFilter);
    // get saved settings
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    mWSuri = "ws://" + prefs.getString("ip", "192.168.1.128") + ":" + prefs.getString("port", "1083");
    mTimeout = Long.parseLong(prefs.getString("timeout", "6000"));
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);
    if (mVirt2real.isConnected())
      menu.findItem(R.id.item1).setTitle("disconnect");
    else
      menu.findItem(R.id.item1).setTitle("connect");
    return true;
  }

  @Override
  public boolean onMenuItemSelected(int featureId, MenuItem item) {
    if (item.getItemId() == R.id.item1) {
      if (mVirt2real.isConnected()) {
        mVirt2real.disconnect();
        getActionBar().setTitle("");
        invalidateOptionsMenu();
      } else {
        mVirt2real.connect(mWSuri, mTimeout);
      }
    } else if (item.getItemId() == R.id.action_settings){
      Intent intent = new Intent(this, SettingsActivity.class);
      startActivityForResult(intent,1);
    }
    return false;
  }
  
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    mWSuri = "ws://" + prefs.getString("ip", "192.168.1.128") + ":" + prefs.getString("port", "1083");
    mTimeout = Long.parseLong(prefs.getString("timeout", "6000"));
    if (mVirt2real.isConnected()) {
      mVirt2real.disconnect();
      getActionBar().setTitle("");
      invalidateOptionsMenu();
    }
  };

  private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
      String m = intent.getAction();
      if (m.equals(Virt2Real.CONNECT)) {
        invalidateOptionsMenu();
        getActionBar().setTitle("");
        nativePlay();
      }
      if (m.equals(Virt2Real.DISCONNECT)) {
        invalidateOptionsMenu();
        getActionBar().setTitle("");
        String s = intent.getStringExtra(Virt2Real.DISCONNECT);
        if(s!=null)
          Toast.makeText(MainActivity.this, s, Toast.LENGTH_SHORT).show();
        nativePause();
      }
      if (m.equals(Virt2Real.ERROR)) {
        invalidateOptionsMenu();
        getActionBar().setTitle("");
        Toast.makeText(MainActivity.this, "connection error", Toast.LENGTH_SHORT).show();
        nativePause();
      }
      if (m.equals(Virt2Real.STATUS)) {
        JSONObject j;
        try {
          j = new JSONObject(intent.getStringExtra(Virt2Real.STATUS));
          String vol = (String) j.get("vol");
          String lev = (String) j.get("lev");
          String lnk = (String) j.get("lnk");
          getActionBar().setTitle("70/"+lnk+" " +lev +"db"+" v:"+ vol);
        } catch (JSONException e) {
          e.printStackTrace();
        }
        
      }
    }
  };

  @Override
  public void onValueChanged(int y1, int y2) {

        JSONObject j = new JSONObject();
        try {
          j.put("cmd", "drive");
          j.put("v1", 254 * (y1 + 100) / 200);
          j.put("v2", 254 * (y2 + 100) / 200);
          String payload = j.toString();
          if (mVirt2real.isConnected())
            mVirt2real.sendTextMessage(payload);
        } catch (JSONException e) {
          e.printStackTrace();
        }
  }

    protected void onDestroy() {
        nativeFinalize();
        super.onDestroy();
    }

    // Called from native code. This sets the content of the TextView from the UI thread.
    private void setMessage(final String message) {
      final Activity cur = this;
      runOnUiThread (new Runnable() {
        public void run() {
          Log.i ("GStreamer", "message:" + message);
        }
      });
    }

    // Called from native code. Native code calls this once it has created its pipeline and
    // the main loop is running, so it is ready to accept commands.
    private void onGStreamerInitialized () {
        Log.i ("GStreamer", "Gst initialized. Restoring state, playing:" + is_playing_desired);
        // Restore previous playing state
        if (is_playing_desired) {
            nativePlay();
        } else {
            nativePause();
        }
    }

    public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
        Log.d("GStreamer", "Surface changed to format " + format + " width "
                + width + " height " + height);
        nativeSurfaceInit (holder.getSurface());
    }

    public void surfaceCreated(SurfaceHolder holder) {
        Log.d("GStreamer", "Surface created: " + holder.getSurface());
    }

    public void surfaceDestroyed(SurfaceHolder holder) {
        Log.d("GStreamer", "Surface destroyed");
        nativeSurfaceFinalize ();
    }
  
}

Java Source Code List

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