Thermometer.java

Go to the documentation of this file.

// -*- mode: java; c-basic-offset: 2; -*-
// Copyright 2019 MIT, All rights reserved
// Released under the Apache License, Version 2.0
// http://www.apache.org/licenses/LICENSE-2.0
 
 
package com.google.appinventor.components.runtime;
 
import com.google.appinventor.components.annotations.DesignerComponent;
import com.google.appinventor.components.annotations.DesignerProperty;
import com.google.appinventor.components.annotations.SimpleEvent;
import com.google.appinventor.components.annotations.SimpleFunction;
import com.google.appinventor.components.annotations.SimpleObject;
import com.google.appinventor.components.annotations.SimpleProperty;
import com.google.appinventor.components.common.ComponentCategory;
import com.google.appinventor.components.common.YaVersion;
 
import android.hardware.Sensor;
 
@DesignerComponent(version = YaVersion.THERMOMETER_COMPONENT_VERSION,
    description = "A sensor component that can measure the ambient (external) temperature. " +
    "Most Android devices do not have this sensor.",
    category = ComponentCategory.SENSORS,
    nonVisible = true,
    iconName = "images/thermometer.png")
@SimpleObject
public class Thermometer extends SingleValueSensor {
  public Thermometer(ComponentContainer container) {
    super(container.$form(), Sensor.TYPE_AMBIENT_TEMPERATURE);
  }
 
  @Override
  protected void onValueChanged(float value) {
    TemperatureChanged(value);
  }
  
  @SimpleEvent(description = "Called when a change is detected in the temperature (in degrees Celsius).")
  public void TemperatureChanged(float temperature) {
    EventDispatcher.dispatchEvent(this, "TemperatureChanged", temperature);
  }
 
  @SimpleProperty(description = "The temperature in degrees Celsius, if the sensor is available and enabled")
   public float Temperature() {
    return getValue();
  }
}