Android Open Source - abstract-art Frame Rate Preference

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License

The source code is released under:

GNU General Public License

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Java Source Code

package net.georgewhiteside.android.abstractart.settings;
/*from  w  w w  .  j a v a 2 s.c om*/
import net.georgewhiteside.android.abstractart.R;
import net.georgewhiteside.android.abstractart.Wallpaper;
import android.content.Context;
import android.content.res.TypedArray;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;

// TODO: this needs a lot of cleaning up

public class FrameRatePreference extends DialogPreference implements OnSeekBarChangeListener
{
  private int mMinimum = 5;
  private int mMaximum = 60;
  private int mStep = 5;
  
  private int currentFramerate;
  private int persistedFramerate;
  
  private SeekBar framerateSeekBar;
  private TextView framerateTextViewValue;

  public FrameRatePreference(Context context, AttributeSet attrs)
  {
    super(context, attrs);
    this.setPersistent(true);
    this.setDialogLayoutResource(R.layout.framerate_preference);
  }
  
  @Override
  protected void onBindDialogView(final View view) {
    super.onBindDialogView(view);
    
    framerateTextViewValue = (TextView)view.findViewById(R.id.framerate_textview_value);
    
    framerateSeekBar = (SeekBar)view.findViewById(R.id.framerate_seekbar);
    framerateSeekBar.setProgress(currentFramerate - mMinimum);
    framerateSeekBar.setOnSeekBarChangeListener(this);
    framerateSeekBar.setMax(mMaximum - mMinimum);
  }

  @Override
  protected void onDialogClosed(final boolean positiveResult)
  {
    super.onDialogClosed(positiveResult);

    if(positiveResult) {
      if(callChangeListener(currentFramerate))
      {
        // user hit OK
        persistString(String.valueOf(currentFramerate));
        persistedFramerate = currentFramerate;
        notifyChanged();  // allow the description to automatically update
      }
    }
    else
    {
      // user cancelled
      currentFramerate = persistedFramerate;
    }
  }
  
  @Override
  protected Object onGetDefaultValue(final TypedArray typedArray, final int index)
  {
    final Integer value = Integer.valueOf(typedArray.getString(index));
    currentFramerate = value;
    persistedFramerate = currentFramerate;
    return value;
  }
  
  @Override
  protected void onSetInitialValue(final boolean restorePersistedValue, final Object defaultValue) {
    String initialValue = restorePersistedValue ? getPersistedString(null) : defaultValue.toString();
    currentFramerate = Integer.valueOf(initialValue);
    persistedFramerate = currentFramerate;
    persistString(initialValue);
  }
  
  /**
   * Interpolate the current value into the summary string
   */
  @Override
    public CharSequence getSummary()
  {
    String summary = super.getSummary().toString();
    int value = currentFramerate;//getPersistedInt(framerate);
    return String.format(summary, value);
    }
  
  public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)
  {
    int rawValue = progress - (progress % mStep);
    int displayValue = rawValue + mMinimum;
    
    seekBar.setProgress(rawValue);
    
    framerateTextViewValue.setText(String.valueOf(displayValue) + " FPS");
    currentFramerate = displayValue;
  }

  public void onStartTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub
    
  }

  public void onStopTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub
    
  }
}

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