Android Open Source - MathApp Activity Wave

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Back to project page MathApp.
License

The source code is released under:
MIT License
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Java Source Code

package ie.lc.mathApp;
//w w  w  . j a va2s .c o  m
import ie.lc.R;
import android.os.Bundle;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.*;





public class ActivityWave extends ActivityGameBase
{
  private Wave           gameWave;
  private double         time;
  private CallbackThread animThread;
  
  
  
  
  
  protected void onSaveInstanceState( Bundle out ) {
    super.onSaveInstanceState( out );
    out.putSerializable( "gameWave", gameWave );
  }
  
  
  
  
  
  protected void onRestoreInstanceState( Bundle in ) {
    super.onRestoreInstanceState( in );
    gameWave = (Wave) in.getSerializable( "gameWave" );
  }
  
  
  
  
  
  protected void onCreate( Bundle savedInstanceState ) {
    super.onCreate( savedInstanceState, R.layout.activity_wave );
  }
  
  
  
  
  
  protected void onPause() {
    super.onPause();
    
    if (animThread != null)
      animThread.join();
    
    animThread = null;
  }
  
  
  
  
  
  protected void onResume() {
    super.onResume();
    createAnimationThread();
  }
    
    
    
    
    
    private void setupWaveSpinner() {
      Spinner spin = (Spinner) findViewById( R.id.waveSpinner );
        
    ArrayAdapter<Wave> adapter = new ArrayAdapter<Wave>(
      this,
      android.R.layout.simple_spinner_dropdown_item,
      Wave.values()
    );
    
    spin.setAdapter( adapter );
    }
    
    
    
    
    
    private void setupWaveBars() {
    for (ProgressBar bar: getWaveBars())
      bar.setMax( 1024 );
  }
    
    
    
    
    
    protected void setupGameActions() {
      setupWaveSpinner();
      setupWaveBars();
      setupAnswerButton();
  }
  
  
  
  
  
    private void setupAnswerButton() {
      final Button buttAnswer = (Button) findViewById( R.id.waveButtAnswer );
    
    buttAnswer.setOnClickListener( new OnClickListener() {
      public void onClick( View v ) {
        onAnswer();
      }
    });
    }





  protected void setupNavActions() {
    setupNavActions(
      R.id.waveButtArithmetic, ActivityArithmetic.class,
      R.id.waveButtSqrt,       ActivitySqrt      .class
    );
  }
  
  
  
  
  
  protected void gameReset() {
    gameWave = Wave.random();
  }
  
  
  
  
  
  protected boolean isAnswerCorrect() {
    Spinner spin = (Spinner) findViewById( R.id.waveSpinner );
    return (Wave) spin.getSelectedItem() == gameWave;
  }
  
  
  
  
  
  private ProgressBar[] getWaveBars() {
      ProgressBar[] bars = {
        (ProgressBar) findViewById( R.id.waveWave0 ),
        (ProgressBar) findViewById( R.id.waveWave1 ),
        (ProgressBar) findViewById( R.id.waveWave2 ),
        (ProgressBar) findViewById( R.id.waveWave3 ),
        (ProgressBar) findViewById( R.id.waveWave4 ),
        (ProgressBar) findViewById( R.id.waveWave5 ),
        (ProgressBar) findViewById( R.id.waveWave6 ),
      };
      
      return bars;
    }
  
  
  
  
  
  private void updateWaveBars() {
    ProgressBar[] waves      = getWaveBars();
    double        wavelength = 60.0;
    
    for (int i=0; i<waves.length; i++) {
      double imax   = (double) (waves.length - 1);
      double frac   = (i / imax);
      double valMax = waves[i].getMax();
      double input  = time + (frac * wavelength * 0.5);
      double val    = gameWave.evaluate( input, wavelength, 0, valMax );
      
      waves[i].setProgress( (int) val );
    }
  }
  
  
  
  
  
  private void createAnimationThread() {
    if (animThread != null)
      animThread.join();
    
    animThread = new CallbackThread( 1000/60, new Callback() {
      public void execute() {
        time++;
        updateWaveBars();
      }
    });
  }
}
Java Source Code List
