Android Open Source - IOIOTemperature Temperature App

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From Project

Back to project page IOIOTemperature.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.davecoss.android.Temperature;
//from  www . ja v  a 2 s .  co m
import java.text.DecimalFormat;

import com.davecoss.android.Temperature.R;
import com.davecoss.android.lib.Notifier;
import ioio.lib.api.AnalogInput;
import ioio.lib.api.DigitalOutput;
import ioio.lib.api.IOIO;
import ioio.lib.api.exception.ConnectionLostException;
import ioio.lib.util.BaseIOIOLooper;
import ioio.lib.util.IOIOLooper;
import ioio.lib.util.android.IOIOActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.ToggleButton;

public class TemperatureApp extends IOIOActivity {
  private TextView textView_;
  private ToggleButton toggleButton_;
  public static final int TEMPERATURE_PIN = 42;
  
  public enum Units {UNITS_FAHRENHEIT,UNITS_CELCIUS,UNITS_KELVIN};
  protected Units units;
  private Notifier notifier;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        notifier = new Notifier(getApplicationContext());
        units = Units.UNITS_FAHRENHEIT;

        textView_ = (TextView)findViewById(R.id.TextView);
        toggleButton_ = (ToggleButton)findViewById(R.id.ToggleButton);

        enableUi(false);
    }
  
    public void radio_btn_click(View view) {
        boolean checked = ((RadioButton) view).isChecked();
        
        // Which?
        switch(view.getId()) {
            case R.id.btn_celcius:
                if(checked)
                {
                  units = Units.UNITS_CELCIUS;
                  notifier.toast_message("Units set to Celcius");
                }
                break;
            case R.id.btn_fahrenheit:
              if(checked)
              {
                units = Units.UNITS_FAHRENHEIT;
                  notifier.toast_message("Units set to Fahrenheit");
              }
              break;
            case R.id.btn_kelvin:
              if(checked)
              {
                units = Units.UNITS_KELVIN;
                  notifier.toast_message("Units set to Kelvin");
              }
              break;
        }
    }
    
  class Looper extends BaseIOIOLooper {
    private AnalogInput input_;
    private DigitalOutput led_;

    
    @Override
    public void setup() throws ConnectionLostException {
      try {
        input_ = ioio_.openAnalogInput(TEMPERATURE_PIN);
        led_ = ioio_.openDigitalOutput(IOIO.LED_PIN, true);
        enableUi(true);
      } catch (ConnectionLostException e) {
        enableUi(false);
        throw e;
      }
    }
    
    @Override
    public void loop() throws ConnectionLostException {
      try {
        final float reading = input_.read();
        double temperature = (reading*3300-400)/19.5;
        
        if(units == Units.UNITS_FAHRENHEIT)
          temperature = (temperature*9)/5 + 32;
        else if(units == Units.UNITS_KELVIN)
          temperature += 273;
        DecimalFormat df = new DecimalFormat("#.#");
          setText(df.format(temperature));
        led_.write(!toggleButton_.isChecked());
        Thread.sleep(1000);
      } catch (InterruptedException e) {
        ioio_.disconnect();
      } catch (ConnectionLostException e) {
        enableUi(false);
        throw e;
      }
    }
  }

  @Override
  protected IOIOLooper createIOIOLooper() {
    return new Looper();
  }

  private void enableUi(final boolean enable) {
    runOnUiThread(new Runnable() {
      @Override
      public void run() {
        toggleButton_.setEnabled(enable);
      }
    });
  }
  
  private void setText(final String str) {
    runOnUiThread(new Runnable() {
      @Override
      public void run() {
        textView_.setText(str);
      }
    });
  }
}

Java Source Code List

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