import java.util.ArrayList;
import java.util.List;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import com.parse.FindCallback;
import com.parse.ParseException;
import com.parse.ParseFile;
import com.parse.ParseObject;
import com.parse.ParseQuery;
import com.parse.ParseRelation;
import com.parse.ParseUser;
import com.parse.SaveCallback;
public class RecipientsActivity extends ListActivity {
public static final String TAG = RecipientsActivity.class.getSimpleName();
protected ParseRelation<ParseUser> mFriendsRelation;
protected ParseUser mCurrentUser;
protected List<ParseUser> mFriends;
protected MenuItem mSendMenuItem;
protected Uri mMediaUri;
protected String mFileType;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout.activity_recipients);
// Show the Up button in the action bar.
setupActionBar();
getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
mMediaUri = getIntent().getData();
mFileType = getIntent().getExtras().getString(ParseConstants.KEY_FILE_TYPE);
}
@Override
public void onResume() {
super.onResume();
mCurrentUser = ParseUser.getCurrentUser();
mFriendsRelation = mCurrentUser.getRelation(ParseConstants.KEY_FRIENDS_RELATION);
setProgressBarIndeterminateVisibility(true);
ParseQuery<ParseUser> query = mFriendsRelation.getQuery();
query.addAscendingOrder(ParseConstants.KEY_USERNAME);
query.findInBackground(new FindCallback<ParseUser>() {
@Override
public void done(List<ParseUser> friends, ParseException e) {
setProgressBarIndeterminateVisibility(false);
if (e == null) {
mFriends = friends;
String[] usernames = new String[mFriends.size()];
int i = 0;
for(ParseUser user : mFriends) {
usernames[i] = user.getUsername();
i++;
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
getListView().getContext(),
android.R.layout.simple_list_item_checked,
usernames);
setListAdapter(adapter);
}
else {
Log.e(TAG, e.getMessage());
AlertDialog.Builder builder = new AlertDialog.Builder(RecipientsActivity.this);
builder.setMessage(e.getMessage())
.setTitle(R.string.error_title)
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
}
});
}
/**
* Set up the {@link android.app.ActionBar}.
*/
private void setupActionBar() {
getActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.recipients, menu);
mSendMenuItem = menu.getItem(0);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// This ID represents the Home or Up button. In the case of this
// activity, the Up button is shown. Use NavUtils to allow users
// to navigate up one level in the application structure. For
// more details, see the Navigation pattern on Android Design:
//
// http://developer.android.com/design/patterns/navigation.html#up-vs-back
//
NavUtils.navigateUpFromSameTask(this);
return true;
case R.id.action_send:
ParseObject message = createMessage();
if (message == null) {
// error
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(R.string.error_selecting_file)
.setTitle(R.string.error_selecting_file_title)
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
else {
send(message);
finish();
}
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
if (l.getCheckedItemCount() > 0) {
mSendMenuItem.setVisible(true);
}
else {
mSendMenuItem.setVisible(false);
}
}
protected ParseObject createMessage() {
ParseObject message = new ParseObject(ParseConstants.CLASS_MESSAGES);
message.put(ParseConstants.KEY_SENDER_ID, ParseUser.getCurrentUser().getObjectId());
message.put(ParseConstants.KEY_SENDER_NAME, ParseUser.getCurrentUser().getUsername());
message.put(ParseConstants.KEY_RECIPIENT_IDS, getRecipientIds());
message.put(ParseConstants.KEY_FILE_TYPE, mFileType);
byte[] fileBytes = FileHelper.getByteArrayFromFile(this, mMediaUri);
if (fileBytes == null) {
return null;
}
else {
if (mFileType.equals(ParseConstants.TYPE_IMAGE)) {
fileBytes = FileHelper.reduceImageForUpload(fileBytes);
}
String fileName = FileHelper.getFileName(this, mMediaUri, mFileType);
ParseFile file = new ParseFile(fileName, fileBytes);
message.put(ParseConstants.KEY_FILE, file);
return message;
}
}
protected ArrayList<String> getRecipientIds() {
ArrayList<String> recipientIds = new ArrayList<String>();
for (int i = 0; i < getListView().getCount(); i++) {
if (getListView().isItemChecked(i)) {
recipientIds.add(mFriends.get(i).getObjectId());
}
}
return recipientIds;
}
protected void send(ParseObject message) {
message.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException e) {
if (e == null) {
// success!
Toast.makeText(RecipientsActivity.this, R.string.success_message, Toast.LENGTH_LONG).show();
}
else {
AlertDialog.Builder builder = new AlertDialog.Builder(RecipientsActivity.this);
builder.setMessage(R.string.error_sending_message)
.setTitle(R.string.error_selecting_file_title)
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
}
});
}
}
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