Android Open Source - coursera-android-pos Ping Pong Activity

From Project

Back to project page coursera-android-pos.

License

The source code is released under:

MIT License

If you think the Android project coursera-android-pos listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package edu.vuum.mocca;
//from   w  ww .j a v a2 s. c  om
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

/** 
 * @class MainActivity
 * 
 * @brief Initial start up screen for the android GUI.
 */
public class PingPongActivity extends Activity 
{  
    /** TextView that PingPong will be "played" upon */
    private TextView mAndroidPingPongOutput;
    
    /** Button that allows playing and resetting of the game */
    private Button mPlayButton;
    
    /** Variables to track state of the game */
    private static int PLAY = 0;
    private static int RESET = 1;
    private int mGameState = PLAY;
    
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
      
        /** Sets the content view to the xml file, activity_ping_pong. */
        setContentView(R.layout.activity_ping_pong);
        mAndroidPingPongOutput = (TextView) findViewById(R.id.pingpong_output);
        mPlayButton = (Button) findViewById(R.id.play_button);

        /** 
         * Initializes the Platform singleton with the appropriate
         * Platform strategy, which in this case will be the
         * AndroidPlatform.
         */
        PlatformStrategy.instance
            (new PlatformStrategyFactory
             (mAndroidPingPongOutput, this).makePlatformStrategy());

        /** Initializes the Options singleton. */
        String args[] = new String[] { "PlayPingPongGUI" };
        Options.instance().parseArgs(args);
    }

    /** Sets the action of the button on click state. */
    public void playButtonClicked(View view) 
    {
      if(mGameState == PLAY) {
          /** 
           * Use a factory method to create the appropriate type of
           * OutputStrategy.
           */
        PlayPingPong pingPong =
              new PlayPingPong(PlatformStrategy.instance(),
                                     Options.instance().maxIterations(),
                                     Options.instance().maxTurns(),
                                     Options.instance().syncMechanism());
  
          /**
           * Play ping-pong with the designated number of
           * iterations. 
           */
        new Thread (pingPong).start();
        mPlayButton.setText(R.string.reset_button);
        mGameState = RESET;
      }
      else if(mGameState == RESET) {
        
        /** Empty TextView and prepare the UI to play another game */
        mAndroidPingPongOutput.setText(R.string.empty_string);
        mPlayButton.setText(R.string.play_button);
        mGameState = PLAY;
      }
      else {
        /** Notify the player that something has gone wrong and reset */
        mAndroidPingPongOutput.setText("Unknown State entered!");
        mGameState = RESET;
      }
    }
}

Java Source Code List