Android Open Source - STweaks Syh Seek Bar

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.gokhanmoral.stweaks.app;
// w  w w  .j  a v  a 2  s . c  o m
import android.app.Activity;
import android.graphics.Color;
import android.util.Log;
import android.view.Gravity;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.SeekBar.OnSeekBarChangeListener;

public final class SyhSeekBar extends SyhControl implements OnSeekBarChangeListener{

  private static String LOG_TAG = Utils.class.getName();


  protected SyhSeekBar(Activity activityIn) {
    super(activityIn);
  }

  private SeekBar seekbar;
  private TextView seekBarValueText;
  private int maxInSteps;
  
  public String unit = "";
  public int min= 0;
  public int max = 0;
  public int step = 1;
  public boolean reversed = false;

  
  //TODO: reverse adjustment needed!
  //TODO: secondary progress needed!
  //TODO: Move to XML
  
  @Override
  public void createInternal() {
    
    //Assumption: valueFromScript is set correctly. 

    Integer val = 0;
    try
    {
      val = Integer.parseInt(valueFromScript);
    }
    catch(Exception e)
    {
      Log.e(LOG_TAG, "SyhSeekBar createInternal: valueFromScript cannot be converted!");
    }
    
    if (val < min)
    {
      val = min;
      valueFromScript = Integer.toString(min);
    }
    else if (val > max)
    {
      val = max;
      valueFromScript = Integer.toString(max);
    }
    valueFromUser = valueFromScript;
    
    maxInSteps = (max - min)/ step;
    
    //--Log.w(LOG_TAG, " max:" + Integer.toString(max) + " step:" + Integer.toString(step) + " maxInSteps:" + Integer.toString(maxInSteps));

    seekbar = new SeekBar(context);
    seekbar.setMax(maxInSteps);
    seekbar.setProgress( (val-min) /step);
    seekbar.setOnSeekBarChangeListener(this); // set listener.
    
    //--seekbar.setSecondaryProgress(max/2);//TODO: fix it
    
    applyScriptValueToUserInterface();
    
    controlLayout.addView(seekbar);
    
        //TODO: Move this to xml
    seekBarValueText = new TextView(context);
        seekBarValueText.setTextColor(Color.WHITE);
        seekBarValueText.setBackgroundColor(Color.BLACK);
        seekBarValueText.setText(valueFromUser + " " + unit);
        seekBarValueText.setGravity(Gravity.CENTER);
    controlLayout.addView(seekBarValueText);        
        
  }
  
  @Override
    public void onProgressChanged(SeekBar seekBar, int progress,
        boolean fromUser) {
      
    //-- Log.i(this.getClass().getName(), "min:" + min + " max:" + max + " seekMax:" + seekbar.getMax() + " progress:" + progress);
    int value = min + progress * step;
    valueFromUser = Integer.toString(value);
      seekBarValueText.setText(valueFromUser + " " + unit);
    //--seekBarValueText.setText(progress + " " + unit);
    }

  @Override
  public void onStartTrackingTouch(SeekBar seekBar) {    
  }

  @Override
  public void onStopTrackingTouch(SeekBar seekBar) {
      if (isChanged())
      {
        this.vci.valueChanged();
      }
  }

  @Override
  protected void applyScriptValueToUserInterface() {
    if (seekbar != null)
    {
      Integer valueHardwareInt = 0;
      try
      {
        valueHardwareInt =Integer.parseInt(valueFromScript);
      }
      catch (NumberFormatException nfe)
      {
        
      }
      Integer progress = (valueHardwareInt - min) / step;
      seekbar.setProgress(progress);
    }
    valueFromUser = valueFromScript;
  }

  
  @Override
  protected String getDefaultValue() {
    return Integer.toString(min);
  }

  
}

Java Source Code List

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