Android Open Source - incubator-cordova-android Temp Listener

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License

The source code is released under:

Apache License

Java Source Code

/*
       Licensed to the Apache Software Foundation (ASF) under one
       or more contributor license agreements.  See the NOTICE file
       distributed with this work for additional information
       regarding copyright ownership.  The ASF licenses this file
       to you under the Apache License, Version 2.0 (the
       "License"); you may not use this file except in compliance
       with the License.  You may obtain a copy of the License at
/*from   ww w  . jav a 2  s  . c  o m*/
         http://www.apache.org/licenses/LICENSE-2.0

       Unless required by applicable law or agreed to in writing,
       software distributed under the License is distributed on an
       "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
       KIND, either express or implied.  See the License for the
       specific language governing permissions and limitations
       under the License.
*/
package org.apache.cordova;

import java.util.List;

import org.apache.cordova.api.CordovaInterface;
import org.apache.cordova.api.Plugin;
import org.apache.cordova.api.PluginResult;
import org.json.JSONArray;

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.content.Context;

public class TempListener extends Plugin implements SensorEventListener {

    Sensor mSensor;
    private SensorManager sensorManager;

    /**
     * Constructor.
     */
    public TempListener() {
    }

    /**
     * Sets the context of the Command. This can then be used to do things like
     * get file paths associated with the Activity.
     *
     * @param cordova The context of the main Activity.
     */
    public void setContext(CordovaInterface cordova) {
        super.setContext(cordova);
        this.sensorManager = (SensorManager) cordova.getActivity().getSystemService(Context.SENSOR_SERVICE);
    }

    /**
     * Executes the request and returns PluginResult.
     * 
     * @param action     The action to execute.
     * @param args       JSONArry of arguments for the plugin.
     * @param callbackId  The callback id used when calling back into JavaScript.
     * @return         A PluginResult object with a status and message.
     */
    public PluginResult execute(String action, JSONArray args, String callbackId) {
        PluginResult.Status status = PluginResult.Status.OK;
        String result = "";

        if (action.equals("start")) {
            this.start();
        }
        else if (action.equals("stop")) {
            this.stop();
        }
        return new PluginResult(status, result);
    }

    /**
     * Called by AccelBroker when listener is to be shut down.
     * Stop listener.
     */
    public void onDestroy() {
        this.stop();
    }

    //--------------------------------------------------------------------------
    // LOCAL METHODS
    //--------------------------------------------------------------------------

    public void start() {
        @SuppressWarnings("deprecation")
        List<Sensor> list = this.sensorManager.getSensorList(Sensor.TYPE_TEMPERATURE);
        if (list.size() > 0) {
            this.mSensor = list.get(0);
            this.sensorManager.registerListener(this, this.mSensor, SensorManager.SENSOR_DELAY_NORMAL);
        }
    }

    public void stop() {
        this.sensorManager.unregisterListener(this);
    }

    public void onAccuracyChanged(Sensor sensor, int accuracy) {
        // TODO Auto-generated method stub
    }

    public void onSensorChanged(SensorEvent event) {
        // We want to know what temp this is.
        float temp = event.values[0];
        this.sendJavascript("gotTemp(" + temp + ");");
    }

}

Java Source Code List

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