Android Open Source - geocamMobileForAndroid Foreground Tracker

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Back to project page geocamMobileForAndroid.

License

The source code is released under:

NASA OPEN SOURCE AGREEMENT VERSION 1.3 THIS OPEN SOURCE AGREEMENT ("AGREEMENT") DEFINES THE RIGHTS OF USE, REPRODUCTION, DISTRIBUTION, MODIFICATION AND REDISTRIBUTION OF CERTAIN COMPUTER SOFTWARE ORI...

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Java Source Code

// __BEGIN_LICENSE__
// Copyright (C) 2008-2010 United States Government as represented by
// the Administrator of the National Aeronautics and Space Administration.
// All Rights Reserved.
// __END_LICENSE__
// www . j  av  a2  s  .c  om
package gov.nasa.arc.geocam.geocam.util;

import java.lang.ref.WeakReference;

import gov.nasa.arc.geocam.geocam.GeoCamService;
import gov.nasa.arc.geocam.geocam.IGeoCamService;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;

public class ForegroundTracker {
  private static final String TAG = "ForegroundTracker";
  
  private WeakReference<Context> mContext;

    private IGeoCamService mService;
    private boolean mServiceBound = false;

    private ServiceConnection mServiceConn = new ServiceConnection() {

        public void onServiceConnected(ComponentName name, IBinder service) {
            Log.d(TAG, "Connected to GeoCam Service");
            mService = IGeoCamService.Stub.asInterface(service);
            mServiceBound = true;
            
            reallyForeground();
    }

        public void onServiceDisconnected(ComponentName name) {
            Log.d(TAG, "Disconnected from GeoCam Service");
            mService = null;
            mServiceBound = false;
        }        
    };
  
  public ForegroundTracker(Context ctx) {
    mContext = new WeakReference<Context>(ctx);
  }
  
  public void foreground() {
    if (!mServiceBound)
      mServiceBound = mContext.get().bindService(
          new Intent(mContext.get(), GeoCamService.class), 
          mServiceConn, Context.BIND_AUTO_CREATE);
    else
      reallyForeground();
  }
  
  private void reallyForeground() {
    if (!mServiceBound || mService == null) {
      Log.w(TAG, "Trying to foreground, but no service!");
      return;
    }
    
        try {
          mService.applicationVisible();
        } catch (RemoteException e) {
          Log.d(TAG, "Error trying to set application visible");
        }
  }
  
  public void background() {
    if (!mServiceBound || mService == null) {
      Log.w(TAG, "Trying to background, but no service!");
      return; 
    }

    try {
      mService.applicationInvisible();
    } catch (RemoteException e) {
      Log.d(TAG, "Error trying to set application invisible");
    }
    
    mContext.get().unbindService(mServiceConn);
    mService = null;
    mServiceBound = false;
  }
}

Java Source Code List