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The source code is released under:
Apache License
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package com.cs446.kluster.views.activities; //from w ww.ja v a2s. c om import java.io.File; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Locale; import android.app.Activity; import android.app.Dialog; import android.app.DialogFragment; import android.content.Context; import android.content.Intent; import android.content.IntentSender; import android.content.SharedPreferences; import android.location.Address; import android.location.Geocoder; import android.location.Location; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.util.Log; import android.widget.Toast; import com.cs446.kluster.models.Photo; import com.cs446.kluster.net.UploadService; import com.google.android.gms.common.ConnectionResult; import com.google.android.gms.common.GooglePlayServicesClient; import com.google.android.gms.common.GooglePlayServicesUtil; import com.google.android.gms.location.LocationClient; import com.google.android.gms.maps.model.LatLng; /** Handles switching to Camera, saving data, and recording GPS information */ public class PhotoFactory extends Activity implements GooglePlayServicesClient.ConnectionCallbacks, GooglePlayServicesClient.OnConnectionFailedListener { public static final int MEDIA_TYPE_IMAGE = 1; public static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100; private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000; private static Uri fileUri; private static LocationClient mLocationClient = null; // Define a DialogFragment that displays the error dialog public static class ErrorDialogFragment extends DialogFragment { // Global field to contain the error dialog private Dialog mDialog; // Default constructor. Sets the dialog field to null public ErrorDialogFragment() { super(); mDialog = null; } // Set the dialog to display public void setDialog(Dialog dialog) { mDialog = dialog; } // Return a Dialog to the DialogFragment. @Override public Dialog onCreateDialog(Bundle savedInstanceState) { return mDialog; } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); /* Create a new location client, using the enclosing class to * handle callbacks. */ mLocationClient = new LocationClient(this, this, this); TakePhoto(); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) { if (resultCode == RESULT_OK) { Date timeStamp = new Date(); sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, fileUri)); SharedPreferences pref = getSharedPreferences("User", Context.MODE_PRIVATE); String userid = pref.getString("id", null); // Image captured and saved to fileUri specified in the Intent //Toast.makeText(this, "Image saved to"+fileUri.toString(), Toast.LENGTH_LONG).show(); Location lastloc = mLocationClient.getLastLocation(); Geocoder geoCoder = new Geocoder(this); List<Address> addr = null; List<String> tags = new ArrayList<String>(); try { addr = geoCoder.getFromLocation(lastloc.getLatitude(), lastloc.getLongitude(), 1); } catch (IOException e) { Log.e("Photofactory", "Could not geocode: " + e.toString()); } if( addr != null && addr.size() > 0) { tags.add(addr.get(0).getAddressLine(0)); tags.add(addr.get(0).getAddressLine(1)); tags.add(addr.get(0).getAddressLine(2)); tags.add(addr.get(0).getLocality()); } Photo photo = new Photo("531238e5f330ede5deafbc3b", userid, "531238e5f330ede5deafbc3a", new LatLng(lastloc.getLatitude(),lastloc.getLongitude()), timeStamp, new String[] {fileUri.getPath(), fileUri.getPath(), fileUri.getPath()}, tags, new String[] {"0", "0"}); //Start upload service Intent intent = new Intent(this, UploadService.class); intent.putExtra("com.cs446.kluster.Photo", photo); startService(intent); // Disconnecting the client invalidates it. Log.w("gps", mLocationClient.getLastLocation().toString()); mLocationClient.disconnect(); } else if (resultCode == RESULT_CANCELED) { // User cancelled the image capture } else { // Image capture failed, advise user } } //Go back / destroy PhotoFactory onBackPressed(); } public void TakePhoto() { // create Intent to take a picture and return control to the calling application Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); fileUri = PhotoFactory.getOutputMediaFileUri(MEDIA_TYPE_IMAGE); // create a file to save the image intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name // Connect the location client. mLocationClient.connect(); // start the image capture Intent startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE); } /** Create a file Uri for saving an image or video */ public static Uri getOutputMediaFileUri(int type){ return Uri.fromFile(getOutputMediaFile(type)); } /** Checks if external storage is available for read and write */ public static boolean isExternalStorageWritable() { String state = Environment.getExternalStorageState(); if (Environment.MEDIA_MOUNTED.equals(state)) { return true; } return false; } /** Create a File for saving an image or video */ private static File getOutputMediaFile(int type){ // To be safe, you should check that the SDCard is mounted // using Environment.getExternalStorageState() before doing this. if (!isExternalStorageWritable()) { Log.d("Kluster", "External not writable"); return null; } File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES), "Kluster"); // This location works best if you want the created images to be shared // between applications and persist after your app has been uninstalled. // Create the storage directory if it does not exist if (! mediaStorageDir.exists()){ if (! mediaStorageDir.mkdirs()){ Log.d("Kluster", "failed to create directory"); return null; } } // Create a media file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(new Date()); File mediaFile; if (type == MEDIA_TYPE_IMAGE){ mediaFile = new File(mediaStorageDir.getPath() + File.separator + "IMG_"+ timeStamp + ".jpg"); } else { return null; } return mediaFile; } @Override public void onConnectionFailed(ConnectionResult connectionResult) { /* * Google Play services can resolve some errors it detects. * If the error has a resolution, try sending an Intent to * start a Google Play services activity that can resolve * error. */ if (connectionResult.hasResolution()) { try { // Start an Activity that tries to resolve the error connectionResult.startResolutionForResult( this, CONNECTION_FAILURE_RESOLUTION_REQUEST); /* * Thrown if Google Play services canceled the original * PendingIntent */ } catch (IntentSender.SendIntentException e) { // Log the error e.printStackTrace(); } } else { /* * If no resolution is available, display a dialog to the * user with the error. */ // Get the error code int errorCode = connectionResult.getErrorCode(); // Get the error dialog from Google Play services Dialog errorDialog = GooglePlayServicesUtil.getErrorDialog( errorCode, this, CONNECTION_FAILURE_RESOLUTION_REQUEST); // If Google Play services can provide an error dialog if (errorDialog != null) { // Create a new DialogFragment for the error dialog ErrorDialogFragment errorFragment = new ErrorDialogFragment(); // Set the dialog in the DialogFragment errorFragment.setDialog(errorDialog); // Show the error dialog in the DialogFragment errorFragment.show(getFragmentManager(), "Location Updates"); } } } @Override public void onConnected(Bundle dataBundle) { // Display the connection status //Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show(); } @Override public void onDisconnected() { // Display the connection status Toast.makeText(this, "Disconnected. Please re-connect.", Toast.LENGTH_SHORT).show(); } }