Android Open Source - theUltimateFlashlight Flashlight Service

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License

The source code is released under:

GNU General Public License

Java Source Code

/*******************************************************************************
 * Copyright (c) 2012 rob@theultimatelabs.com.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html// w  w w  . j a va  2s.  co m
 * 
 * Contributors:
 *     rob@theultimatelabs.com - initial API and implementation
 ******************************************************************************/
package com.theultimatelabs.flashlight;

import android.app.KeyguardManager;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.PowerManager;
import android.os.SystemClock;
import android.os.PowerManager.WakeLock;
import android.preference.PreferenceManager;
import android.telephony.TelephonyManager;
import android.util.Log;

import com.musicg.api.ClapApi;

public class FlashlightService extends Service {

  static final String TAG = "FlashlightService";
  private SharedPreferences mSettings;
  private boolean keepOff=false;
  private long mLastOff=0;
  private Handler mHandler;
  
  public boolean isEnabled() {
    mSettings = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
    if (mSettings.getBoolean("global_enabled", true) && (mSettings.getBoolean("lantern_enabled", true) ||
        mSettings.getBoolean("lamp_enabled", true) || mSettings.getBoolean("quickOn_enabled", true) || 
        Integer.parseInt(mSettings.getString("on_delay", "2"))>=0)) {
      return true;
    }
    return false;
  }
  
  @Override
  public void onCreate() {

    mSettings = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());

    if (!isEnabled()) {
      stopSelf();
    }
    
    mHandler = new Handler();

    IntentFilter filter = new IntentFilter();
    filter.addAction(Intent.ACTION_SCREEN_OFF);
    filter.addAction(Intent.ACTION_SCREEN_ON);
    filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
    filter.addAction(Intent.ACTION_POWER_DISCONNECTED);
    filter.addAction(Intent.ACTION_POWER_CONNECTED);
    //filter.addAction(Intent.ACTION_USER_PRESENT);

    registerReceiver(mBroadcastReciever, filter);

  }

  /**
   * Handler for displaying messages
   */
  public Handler mhandle = new Handler() {
    @Override
    public void handleMessage(Message msg) {

      //Log.w(TAG, "handleMessage");
      super.handleMessage(msg);

    }

  };

  @Override
  public void onDestroy() {

    Log.d(TAG, "onDestroy");
    unregisterReceiver(mBroadcastReciever);
    super.onDestroy();

  }

  public BroadcastReceiver mBroadcastReciever = new BroadcastReceiver() {

    

    @Override
    public void onReceive(Context context, Intent intent) {
      String action = intent.getAction();
      if (action == null)
        return;
      Log.d(TAG, "onReceive: " + action);

      if(!isEnabled()) {
        stopSelf();
      }
      
      if (action.equals(Intent.ACTION_SCREEN_ON)) {
        if(keepOff == false) {
          startLed();
        }
      } else if (action.equals(Intent.ACTION_USER_PRESENT)) {
      } else if (action.equals(Intent.ACTION_SCREEN_OFF)) {
        mLastOff = SystemClock.elapsedRealtime();
      } else if (action.equals(Intent.ACTION_POWER_CONNECTED)) {
        keepOff = true;
        mHandler.removeCallbacks(disableKeepOff);
        mHandler.postDelayed(disableKeepOff,1000);
      } else if (action.equals(Intent.ACTION_POWER_DISCONNECTED)) {
        keepOff = true;
        mHandler.removeCallbacks(disableKeepOff);
        mHandler.postDelayed(disableKeepOff,1000);
      }
      else if (action.equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED)) {
        keepOff = true;
        mHandler.removeCallbacks(disableKeepOff);
        mHandler.postDelayed(disableKeepOff,1000);
      }
    }

  };
  
  Runnable disableKeepOff = new Runnable() {
    @Override
    public void run() {
      keepOff = false;  
    }
  };
  
  private void startLed() {
    KeyguardManager km = (KeyguardManager) getApplicationContext().getSystemService(Context.KEYGUARD_SERVICE);
    PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);

    if (km.inKeyguardRestrictedInputMode() && pm.isScreenOn()) {
      Intent ledIntent = new Intent(getApplicationContext(), FlashlightActivity.class);
      ledIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
      ledIntent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
      ledIntent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
      ledIntent.addFlags(Intent.FLAG_FROM_BACKGROUND);
      ledIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
      ledIntent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
      ledIntent.putExtra("lastOff", mLastOff);
      getApplicationContext().startActivity(ledIntent);
    } else {
      Log.w(TAG, "not locked");
    }
  }

  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
    // Log.v(TAG, "onStartCommand");

    return START_STICKY;
  }

  @Override
  public IBinder onBind(Intent intent) {
    // TODO Auto-generated method stub
    return null;
  }

}

Java Source Code List

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