de.tubs.ibr.dtn.dtalkie.TalkieActivity.java Source code

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Here is the source code for de.tubs.ibr.dtn.dtalkie.TalkieActivity.java

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/*
 * DTalkieActivity.java
 * 
 * Copyright (C) 2011 IBR, TU Braunschweig
 *
 * Written-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package de.tubs.ibr.dtn.dtalkie;

import java.util.List;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.media.AudioManager;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import de.tubs.ibr.dtn.dtalkie.service.HeadsetService;
import de.tubs.ibr.dtn.dtalkie.service.RecorderService;

public class TalkieActivity extends FragmentActivity {

    @SuppressWarnings("unused")
    private static final String TAG = "TalkieActivity";

    /**
     * Listen to sensor events for automatic recording
     */
    private SensorEventListener mSensorListener = new SensorEventListener() {
        public void onSensorChanged(SensorEvent event) {
            if (event.values.length > 0) {
                float current = event.values[0];
                float maxRange = event.sensor.getMaximumRange();
                boolean far = (current == maxRange);

                SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(TalkieActivity.this);
                if (prefs.getBoolean("sensor", false)) {
                    if (far) {
                        // organize audio output
                        setAudioOutput();

                        // stop recording
                        RecorderService.stopRecording(TalkieActivity.this);
                    } else {
                        // disable speaker phone when on ear
                        AudioManager am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
                        am.setSpeakerphoneOn(false);

                        // start recording
                        RecorderService.startRecording(TalkieActivity.this, RecorderService.TALKIE_GROUP_EID, true,
                                false);
                    }
                }
            }
        }

        public void onAccuracyChanged(Sensor sensor, int accuracy) {
        }
    };

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        // disable background service
        Intent i = new Intent(this, HeadsetService.class);
        i.setAction(HeadsetService.LEAVE_HEADSET_MODE);
        startService(i);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.pref_menu, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.itemPreferences: {
            // Launch Preference activity
            Intent i = new Intent(this, Preferences.class);
            startActivity(i);
            return true;
        }

        case R.id.itemHeadsetMode: {
            // start background service
            Intent i = new Intent(this, HeadsetService.class);
            i.setAction(HeadsetService.ENTER_HEADSET_MODE);
            startService(i);

            // finish the activity
            finish();
            return true;
        }
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onPause() {
        SensorManager sm = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        sm.unregisterListener(mSensorListener);

        super.onPause();
    }

    @Override
    public void onResume() {
        super.onResume();

        SensorManager sm = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        List<Sensor> sensors = sm.getSensorList(Sensor.TYPE_PROXIMITY);
        if (sensors.size() > 0) {
            Sensor sensor = sensors.get(0);
            sm.registerListener(mSensorListener, sensor, SensorManager.SENSOR_DELAY_NORMAL);
        }

        // set output to speaker
        setAudioOutput();
    }

    @SuppressWarnings("deprecation")
    private void setAudioOutput() {
        AudioManager am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

        if (am.isBluetoothA2dpOn()) {
            // play without speaker
            am.setSpeakerphoneOn(false);
        } else if (am.isWiredHeadsetOn()) {
            // play without speaker
            am.setSpeakerphoneOn(false);
        } else {
            // without headset, enable speaker
            am.setSpeakerphoneOn(true);
        }
    }
}