Android Open Source - EnergyWastingApp Component

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License

The source code is released under:

Copyright ? 2013-2014 Pekka Ekman <pekka.ekman@aalto.fi> 2013 Babujee Jerome Robin <robin.babujeejerome@aalto.fi> Permission is hereby granted, free of charge, to any person obtaining a ...

Java Source Code

package fi.aalto.pekman.energywastingapp.components;
//from www.j ava2  s .c  o m
import android.support.v4.app.DialogFragment;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.SeekBar;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;

/**
 * Abstract class for components (GPS, wi-fi, camera, etc.)
 */
public abstract class Component
  implements OnCheckedChangeListener, OnSeekBarChangeListener, View.OnClickListener {
  
  /** Application context */
  public static ActionBarActivity context;
  
  /** GUI control associated with the component */
  public CompoundButton uiControl;
  
  /** GUI control that shows the current adjustment value */
  public TextView uiAdjustmentValueLabel;
  
  /** Indicates, whether the component is currently turned on */
  public boolean running = false;
  
  /** Name displayed in user interface */
  public abstract String getName();
  
  /**
   * Returns false if the component cannot be used.
   * (e.g. if the functionality is not supported)
   */
  public boolean isSupported() { return true; }
  
  /** Returns true if energy use of the component can be adjusted */
  public boolean isAdjustable() { return false; }
  
  /** Returns minimum adjustment value */
  public int getAdjustmentMin() { return 1; }
  
  /** Returns maximum adjustment value */
  public int getAdjustmentMax() {
    throw new UnsupportedOperationException("getAdjustmentMax() not supported");
  }
  
  /** Returns initial adjustment value */
  public int getAdjustmentDefault() { return getAdjustmentMax(); }
  
  /** Returns adjustment increment/decrement step size */
  public int getAdjustmentStep() { return 1; }
  
  /** Callback called when the adjustment is changed */
  protected void onAdjustmentChange(int value) {}
  
  /** Returns the string displayed next to the adjustment seek bar */
  protected String getAdjustmentDisplayValue(int value) {
    return Math.round(value * getAdjustmentStep() * (100.0f / getAdjustmentMax())) + "%";
  }
  
  // OnSeekBarChangeListener events:
  @Override public void onStopTrackingTouch(SeekBar seekBar) {}
  @Override public void onStartTrackingTouch(SeekBar seekBar) {}
  
  /**
   * This is used for attaching this object to a seek bar.
   *
   * @see android.widget.SeekBar.OnSeekBarChangeListener#onProgressChanged(android.widget.SeekBar, int, boolean)
   */
  @Override
  public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
    int value = (progress / getAdjustmentStep()) + getAdjustmentMin();
    onAdjustmentChange(value);
    uiAdjustmentValueLabel.setText( getAdjustmentDisplayValue(value) );
  }
  
  /**
   * This is used for attaching this object to a toggle button.
   *
   * @see android.widget.CompoundButton.OnCheckedChangeListener#onCheckedChanged(android.widget.CompoundButton, boolean)
   */
  @Override
  public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
    if (isChecked) {
      running = true;
      start();
    }
    else {
      stop();
      running = false;
    }
  }
  
  /** Return settings dialog if the component has one */
  public DialogFragment getSettingsDialog() {
    return null;
  }
  
  /**
   * This is used for attaching this object to a button.
   *
   * @see android.view.View.OnClickListener#onClick(android.view.View)
   */
  @Override
  public void onClick(View v) {
    getSettingsDialog().show(
        context.getSupportFragmentManager(),
        getName() + "DialogFragment");
  }
  
  /**
   * Set the GUI control to off position.
   * Does not need to be called in {@link #stop()}.
   */
  public void markTurnedOff() {
    uiControl.setOnCheckedChangeListener(null);
    uiControl.setChecked(false);
    uiControl.setOnCheckedChangeListener(this);
    running = false;
  }
  
  public void markTurnedOn() {
    uiControl.setOnCheckedChangeListener(null);
    uiControl.setChecked(true);
    uiControl.setOnCheckedChangeListener(this);
    running = true;
  }
  
  /** Called when the application is no longer in the foreground */
  public void onPause() {}
  /** Called when the application cones back into the foreground */
  public void onResume() {}
  
  /** Start the activity of the component */
  public abstract void start();
  /** Stop the activity of the component */
  public abstract void stop();
}

Java Source Code List

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