Android Open Source - android-ribbit Inbox Fragment

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License

The source code is released under:
MIT License
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Java Source Code

package com.teamtreehouse.ribbit;
//w w w  .  jav a2 s.  c  o m
import java.util.ArrayList;
import java.util.List;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.parse.FindCallback;
import com.parse.ParseException;
import com.parse.ParseFile;
import com.parse.ParseObject;
import com.parse.ParseQuery;
import com.parse.ParseUser;

public class InboxFragment extends ListFragment {

  protected List<ParseObject> mMessages;
  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_inbox,
        container, false);

    return rootView;
  }

  @Override
  public void onResume() {
    super.onResume();
    
    getActivity().setProgressBarIndeterminateVisibility(true);
    
    ParseQuery<ParseObject> query = new ParseQuery<ParseObject>(ParseConstants.CLASS_MESSAGES);
    query.whereEqualTo(ParseConstants.KEY_RECIPIENT_IDS, ParseUser.getCurrentUser().getObjectId());
    query.addDescendingOrder(ParseConstants.KEY_CREATED_AT);
    query.findInBackground(new FindCallback<ParseObject>() {
      @Override
      public void done(List<ParseObject> messages, ParseException e) {
        getActivity().setProgressBarIndeterminateVisibility(false);
        
        if (e == null) {
          // We found messages!
          mMessages = messages;

          String[] usernames = new String[mMessages.size()];
          int i = 0;
          for(ParseObject message : mMessages) {
            usernames[i] = message.getString(ParseConstants.KEY_SENDER_NAME);
            i++;
          }
          if (getListView().getAdapter() == null) {
            MessageAdapter adapter = new MessageAdapter(
                getListView().getContext(), 
                mMessages);
            setListAdapter(adapter);
          }
          else {
            // refill the adapter!
            ((MessageAdapter)getListView().getAdapter()).refill(mMessages);
          }
        }
      }
    });
  }
  
  @Override
  public void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);
    
    ParseObject message = mMessages.get(position);
    String messageType = message.getString(ParseConstants.KEY_FILE_TYPE);
    ParseFile file = message.getParseFile(ParseConstants.KEY_FILE);
    Uri fileUri = Uri.parse(file.getUrl());
    
    if (messageType.equals(ParseConstants.TYPE_IMAGE)) {
      // view the image
      Intent intent = new Intent(getActivity(), ViewImageActivity.class);
      intent.setData(fileUri);
      startActivity(intent);
    }
    else {
      // view the video
      Intent intent = new Intent(Intent.ACTION_VIEW, fileUri);
      intent.setDataAndType(fileUri, "video/*");
      startActivity(intent);
    }
    
    // Delete it!
    List<String> ids = message.getList(ParseConstants.KEY_RECIPIENT_IDS);
    
    if (ids.size() == 1) {
      // last recipient - delete the whole thing!
      message.deleteInBackground();
    }
    else {
      // remove the recipient and save
      ids.remove(ParseUser.getCurrentUser().getObjectId());
      
      ArrayList<String> idsToRemove = new ArrayList<String>();
      idsToRemove.add(ParseUser.getCurrentUser().getObjectId());
      
      message.removeAll(ParseConstants.KEY_RECIPIENT_IDS, idsToRemove);
      message.saveInBackground();
    }
  }
}
Java Source Code List
