Android Open Source - addlive-android-sdk-tutorials Tutorial2

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License

The source code is released under:

Copyright (c) 2012 LiveFoundry Inc. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the S...

Java Source Code

package com.addlive.tutorials;
/*  w w w . j  av a 2  s . c o  m*/
import java.util.List;

import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.graphics.Color;
import android.util.Log;
import android.view.SurfaceView;
import android.view.View;
import android.widget.TextView;

import com.addlive.platform.*;
import com.addlive.service.*;
import com.addlive.service.listener.*;

public class Tutorial2 extends Activity {

  /**
  *===========================================================================
  * Constants
  *===========================================================================
  */

  private static final long ADL_APP_ID = 1; // TODO set your app ID here.
  private static final String LOG_TAG = "AddLiveTutorial";

  /**
  *===========================================================================
  * Properties
  *===========================================================================
  */
  
  // Cameras available.
    private List<Device> devices;
    
    // Current local camera id.
    private String _currentDeviceId;
    
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_tutorial2);

    // Setting the local video view.
      SurfaceView local = (SurfaceView) findViewById(R.id.local_video);
      local.setZOrderMediaOverlay(true);
    
      // Setting view's listeners.
      initializeActions();
      
    // Framework initialization.
    initializeAddLive();
  }

  /**
  *===========================================================================
  * UI Actions initialization and handling
  *===========================================================================
  */

  private void initializeActions() {

    // Setting the click listener for the toggle button.
    findViewById(R.id.toggle).setOnClickListener(
          new View.OnClickListener() {
            @Override
            public void onClick(View view) {
              
              // Looping though the device list.
                for (Device device : devices) {
                    if(!device.getId().equals(_currentDeviceId)){
                      _currentDeviceId = device.getId();
                      break;
                    }
                }
                
                // Getting the video view
                SurfaceView surfaceView = 
                    (SurfaceView)findViewById(R.id.local_video);
                
              /* getService - Returns a reference to the implementation 
               * of the AddLiveService interface.
               * 
               * setVideoCaptureDevice - Defines which video capture device
               * (camera) should be used by the SDK
               */
                ADL.getService().setVideoCaptureDevice(
                    new ResponderAdapter<Void>(),
                    _currentDeviceId, surfaceView);
            }
          }
    );
  }

  /**
  *===========================================================================
  * AddLive Platform initialization
  *===========================================================================
  */

  private void initializeAddLive() {
    
    // ADL.init listener
    PlatformInitListener listener = new PlatformInitListener() {
      @Override
      public void onInitProgressChanged(InitProgressChangedEvent e) {
        // Actually not used by the platform for now. Just a placeholder.
      }

      @Override
      public void onInitStateChanged(InitStateChangedEvent e) {

        if (e.getState() == InitState.INITIALIZED) {
          
          // Successfully initialized.
          onAdlInitialized();
          } else {
            
            // Unsuccessfully initialized.
            onAdlInitError(e);
          }
      }
    };
    
    // Describes the options allowing platform initialization.
    PlatformInitOptions initOptions = new PlatformInitOptions();
      String storageDir = 
          Environment.getExternalStorageDirectory().getAbsolutePath();
      
      // Sets the path where platform should look for the native components
      // of the AddLive SDK.
      initOptions.setStorageDir(storageDir);
      
      // Sets the value of the applicationId property.
      initOptions.setApplicationId(ADL_APP_ID);
      
      Log.d(LOG_TAG, "Initializing the AddLive SDK.");
      
      /* Initializes the AddLive ADL. The process is asynchronous and 
       * initialization state changes and progress updates are reported via
       * the listener provided.
       */
      ADL.init(listener, initOptions, this);
  }

  //==========================================================================

  private void onAdlInitialized() {
    Log.d(LOG_TAG, "AddLive SDK initialized");

    /* getService - Returns a reference to the implementation of the 
     * AddLiveService interface.
     * 
     * addServiceListener - Registers a AddLive Service listener. 
     * Listener provided here should subclass the provided 
     * AddLiveServiceListener stub and implement required methods.
     */
      ADL.getService().addServiceListener(new ResponderAdapter<Void>(),
          getListener());

    /* 
     * getVideoCaptureDeviceNames - Returns an id of currently selected
     * video capture device.
     */
      ADL.getService().getVideoCaptureDeviceNames(
        new UIThreadResponder<List<Device>>(this) {
          @Override
          protected void handleResult(List<Device> devices) {
            
            // On successful process the devices.
            onGetVideoCaptureDeviceNames(devices);
          }

          @Override
          protected void handleError(int errCode, String errMessage) {
            Log.e(LOG_TAG, "Failed to get video capture devices.");
              }
        }
      );
  }

  //==========================================================================

  private void onAdlInitError(InitStateChangedEvent e) {

    // Setting and showing the error label.
      TextView status = (TextView) findViewById(R.id.error);
      status.setTextColor(Color.RED);
      String errMessage = "ERROR: (" + e.getErrCode() + ") " +
          e.getErrMessage();
      status.setText(errMessage);

      Log.e(LOG_TAG, errMessage);
  }
  
  //==========================================================================

  private void onGetVideoCaptureDeviceNames(List<Device> devicesAvailables) {

    // Copy the devices list so we can toggle later.
      devices = devicesAvailables;
    
      // Setting the front camera as the local video feeding camera.
      SurfaceView view = (SurfaceView) findViewById(R.id.local_video);
      ADL.getService().setVideoCaptureDevice(new ResponderAdapter<Void>(),
          VideoCaptureDevice.FRONT_CAMERA.getId(), view);
      
      // Setting the current feeding id camera.
      _currentDeviceId = VideoCaptureDevice.FRONT_CAMERA.getId();
      
    /* 
     * startLocalVideo - Starts previewing the local video feed.
     */
      ADL.getService().startLocalVideo(new UIThreadResponder<String>(this) {
        @Override
        protected void handleResult(String videoSinkId) {
          Log.d(LOG_TAG, "Succesfully started local video.");
        }

        @Override
        protected void handleError(int errCode, String errMessage) {
          Log.e(LOG_TAG, "Failed to start local video.");
        }
      }, view);
  }

  /**
  *===========================================================================
  * AddLive Service Events handling
  * Interface allowing implementation of global AddLive Service event handlers.
  *===========================================================================
  */

  private AddLiveServiceListener getListener() {
      return new AddLiveServiceListenerAdapter() {
        
      /* 
       * onVideoFrameSizeChanged - Called whenever the video resolution of
       * any video sink changes.
       */
      @Override
       public void onVideoFrameSizeChanged(final VideoFrameSizeChangedEvent e) {
            runOnUiThread(new Runnable() {
              @Override
              public void run() {
                Log.d(LOG_TAG, "onVideoFrameSizeChanged Listener triggered");
              }
            });
         }
        
      /* 
       * onConnectionLost - Called whenever local user lost a connection 
       * to the AddLive Streaming Server.
       * (e.g. due to Internet connectivity issues)
       */
        @Override
       public void onConnectionLost(final ConnectionLostEvent e) {
            runOnUiThread(new Runnable() {
              @Override
              public void run() {
                Log.d(LOG_TAG, "onConnectionLost Listener triggered");
              }
            });
        }
        
      /* 
       * onSessionReconnected - Called whenever the AddLive SDK 
       * reestablishes a connection to the AddLive streaming server.
       */
       @Override
       public void onSessionReconnected(final SessionReconnectedEvent e) {
            runOnUiThread(new Runnable() {
              @Override
              public void run() {
                Log.d(LOG_TAG, "onSessionReconnected Listener triggered");
              }
            });
        }
    };
  }
}

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