Java tutorial
/* * Copyright (C) 2013 The Android Open Source Project * * Licensed 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 * * 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 edu.northwestern.cbits.activitydetector.app; import com.google.android.gms.common.ConnectionResult; import com.google.android.gms.common.GooglePlayServicesUtil; import com.google.android.gms.location.ActivityRecognitionResult; import com.google.android.gms.location.DetectedActivity; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.RingtoneManager; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.SystemClock; import android.support.v4.content.LocalBroadcastManager; import android.util.Log; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.Chronometer; import android.widget.TextView; import junit.framework.Test; import java.io.IOException; import java.util.Timer; import java.util.TimerTask; /** * Sample application that demonstrates the use of * ActivityRecognitionClient}. It registers for activity detection updates * at a rate of 1 seconds, logs them to a file, and displays the detected * activities with their associated confidence levels. * An IntentService receives activity detection updates in the background * so that detection can continue even if the Activity is not visible. */ public class MainActivity extends Activity { // setup UI refresh handler int i = 0; TextView nameView; final Handler mHandler = new Handler(); // Store the current request type (ADD or REMOVE) public ActivityUtils.REQUEST_TYPE mRequestType; // The activity recognition update request object public DetectionRequester mDetectionRequester; // The activity recognition update removal object public DetectionRemover mDetectionRemover; private void UpdateGUI() { i++; final MainActivity me = this; // Runs once a second mHandler.post(new Runnable() { public void run() { Log.d(getString(R.string.app_name), ActivityRecognitionIntentService.ACTIVITY_NAME); nameView.setText( ActivityRecognitionIntentService.ACTIVITY_NAME + " " + System.currentTimeMillis() / 1000); //setting up tone for on_foot Uri defaultRingtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); MediaPlayer mediaPlayer = new MediaPlayer(); try { mediaPlayer.setDataSource(me, defaultRingtoneUri); mediaPlayer.setAudioStreamType(AudioManager.STREAM_NOTIFICATION); mediaPlayer.prepare(); mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { mp.release(); } }); if (ActivityRecognitionIntentService.ACTIVITY_NAME == "on_foot") { mediaPlayer.start(); } else { mediaPlayer.release(); } } catch (IOException e) { e.printStackTrace(); } ; } }); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Get detection requester and remover objects mDetectionRequester = new DetectionRequester(this); mDetectionRemover = new DetectionRemover(this); mDetectionRequester.requestUpdates(); // Set the main layout setContentView(R.layout.activity_main); nameView = (TextView) this.findViewById(R.id.activity); nameView.setText(ActivityRecognitionIntentService.ACTIVITY_NAME); Timer myTimer = new Timer(); myTimer.schedule(new TimerTask() { @Override public void run() { UpdateGUI(); } }, 0, 1000); } /* * Handle results returned to this Activity by other Activities started with * startActivityForResult(). In particular, the method onConnectionFailed() in * DetectionRemover and DetectionRequester may call startResolutionForResult() to * start an Activity that handles Google Play services problems. The result of this * call returns here, to onActivityResult. */ @Override protected void onActivityResult(int requestCode, int resultCode, Intent intent) { // Choose what to do based on the request code switch (requestCode) { // If the request code matches the code sent in onConnectionFailed case ActivityUtils.CONNECTION_FAILURE_RESOLUTION_REQUEST: switch (resultCode) { // If Google Play services resolved the problem case Activity.RESULT_OK: // If the request was to start activity recognition updates if (ActivityUtils.REQUEST_TYPE.ADD == mRequestType) { // Restart the process of requesting activity recognition updates mDetectionRequester.requestUpdates(); // If the request was to remove activity recognition updates } else if (ActivityUtils.REQUEST_TYPE.REMOVE == mRequestType) { /* * Restart the removal of all activity recognition updates for the * PendingIntent. */ mDetectionRemover.removeUpdates(mDetectionRequester.getRequestPendingIntent()); } break; // If any other result was returned by Google Play services default: // Report that Google Play services was unable to resolve the problem. Log.d(ActivityUtils.APPTAG, getString(R.string.no_resolution)); } // If any other request code was received default: // Report that this Activity received an unknown requestCode Log.d(ActivityUtils.APPTAG, getString(R.string.unknown_activity_request_code, requestCode)); break; } } /* * Register the broadcast receiver and update the log of activity updates */ @Override protected void onResume() { super.onResume(); // Check for Google Play services if (!servicesConnected()) { return; } /* * Set the request type. If a connection error occurs, and Google Play services can * handle it, then onActivityResult will use the request type to retry the request */ mRequestType = ActivityUtils.REQUEST_TYPE.ADD; // Pass the update request to the requester object mDetectionRequester.requestUpdates(); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { return super.onOptionsItemSelected(item); } /* * Unregister the receiver during a pause */ @Override protected void onPause() { super.onPause(); } /** * Verify that Google Play services is available before making a request. * * @return true if Google Play services is available, otherwise false */ private boolean servicesConnected() { // Check that Google Play services is available int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this); // If Google Play services is available if (ConnectionResult.SUCCESS == resultCode) { // In debug mode, log the status Log.d(ActivityUtils.APPTAG, getString(R.string.play_services_available)); // Continue return true; // Google Play services was not available for some reason } else { // Display an error dialog GooglePlayServicesUtil.getErrorDialog(resultCode, this, 0).show(); return false; } } }