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public class VideoPlayer extends SpringStreamsActivity {

	VideoView videoView;

	/**
	 * 
	 */
	public VideoPlayer() {
		super("test", "Streaming Test App");
	}
	
	
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		
		videoView = ...; 
	}

	@Override
	protected void onStart() {
		Map<String, Object> atts = new HashMap<String, Object>();
		atts.put("stream", "android/teststream");
		super.track(new VideoViewAdapter(this.videoView), atts);
		super.onStart();
	}
}

/**
 * Implementation of an adapter for the {@link VideoView} in standard 
 * android api.
 * 
 * @author <a href="mailto:support@spring.de">spring GmbH &amp; Co.KG</a>
 */
public class VideoViewAdapter implements StreamAdapter {

		
	private VideoView videoView;
	
	public VideoViewAdapter(VideoView videoView) {
		if(videoView == null) 
			throw new NullPointerException("videoView may not be null");
		this.videoView = videoView;
	}

	@Override
	public Meta getMeta() {
		return new Meta() {
			public String getPlayerName() {
				return "android.widget.VideoView";
			}
			public String getPlayerVersion() {
				return Build.VERSION.RELEASE;
			}
			public int getScreenHeight() {
				return (((WindowManager)videoView.getContext().getSystemService(Context.WINDOW_SERVICE))
                                       .getDefaultDisplay()).getHeight();
			}
			public int getScreenWidth() {
				return (((WindowManager)videoView.getContext().getSystemService(Context.WINDOW_SERVICE))
					.getDefaultDisplay()).getWidth();
			}
		};
	}
	
	@Override
	public int getPosition() {
		return (int)Math.round(videoView.getCurrentPosition()/1000.0);
	}

	@Override
	public int getDuration() {
		return (int)Math.round(videoView.getDuration()/1000.0);
	}

	@Override
	public int getWidth() {
		return videoView.getWidth();
	}

	@Override
	public int getHeight() {
		return videoView.getHeight();
	}
}
 

package de.spring.mobile;

import java.util.Map;
import android.app.Activity;
import android.os.Bundle;

/**
 * 
 * @author  <a href="mailto:support@spring.de">spring GmbH &amp; Co.KG</a>
 */
public abstract class SpringStreamsActivity extends Activity {
	private static SpringStreams sensor;
	private static int instances = 0;
	private Stream stream;
	
	
	public SpringStreamsActivity(String site, String appName) {
		this(site, appName, 10);
	}
	
	public SpringStreamsActivity(String site, String appName, int timeout) {
		if(site == null) throw new NullPointerException("parameter site may not be null");
		if(appName == null) throw new NullPointerException("parameter appName may not be null");
		
		if(sensor == null) {
			sensor = new SpringStreams(site, appName, getApplicationContext());
			sensor.setTimeout(timeout);
		}
	}
	public Stream getStream() {
		return stream;
	}
	public void setSensorDebug(boolean debug) {
		sensor.setDebug(debug);
	}
	
	public boolean isSensorDebug() {
		return sensor.isDebug();
	}
	
	public void setTracking(boolean tracking) {
		sensor.setTracking(tracking);
	}
	
	public boolean isTracking() {
		return sensor.isTracking();
	}	
	
	public void track(StreamAdapter adapter, Map<String, Object> atts) {
		if(this.stream != null) {
			stream.stop();
			stream = null;
		}
		stream = sensor.track(adapter, atts);
	}
	/**
	 * @see android.app.Activity#onCreate(android.os.Bundle)
	 */
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		instances++;
		super.onCreate(savedInstanceState);
	}
	
	
	/**
	 * @see android.app.Activity#onStop()
	 */
	@Override
	protected void onStop() {
		if(stream != null) {
			stream.stop();
			stream = null;
		}
		super.onStop();
	}
	
	/**
	 * @see android.app.Activity#onDestroy()
	 */
	@Override
	protected void onDestroy() {
		instances--;
		if(instances <= 0) {
			sensor.unload();
			sensor = null;
			stream = null;
		}
		super.onDestroy();
	}
}