Android Open Source - GroupGoal Comment Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.cs121.groupgoal;
//from  w w w  . j  av  a 2s.co m
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

import com.parse.ParseQuery;
import com.parse.ParseUser;

/**
 * This activity handles all the storing and displaying of commments
 * that are posted by the attendees of a specific goal
 *
 */
public class CommentActivity extends Activity {
  
    private EditText postEditText; 
    private Button postButton;
    GoalPost currentGoal;
    ArrayList<String> allComments;
    private String commentText; 
    String[] commentsMade;
    String[] commentsMadeR;
    private String goalID;
    private String ownerName;
    String currentGoalId;
    ParseUser user= ParseUser.getCurrentUser();
        
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_comment);
    
    Intent intent = getIntent();
    goalID = intent.getStringExtra("goalObjectId");
    ownerName = intent.getStringExtra("goal_owner");
    currentGoalId = intent.getStringExtra("goalObjectId"); //gets the objectID of the goal we were viewing
  
    update();
  }
  
  private void update() {
    ParseQuery<GoalPost> postQuery = ParseQuery.getQuery(GoalPost.class); //fetch the GoalPost object associated with the objectId      
      try {
        currentGoal = postQuery.get(currentGoalId);
      } catch (com.parse.ParseException e) {
      Log.e("Goal Error", e.getMessage());
    }
   
      allComments = (ArrayList<String>) currentGoal.get("commentsList"); //this array holds the strings of comments posted
      
      commentsMade = new String[allComments.size()];
      commentsMade = allComments.toArray(commentsMade);
      Collections.reverse(Arrays.asList(commentsMade)); //want to reverse the array that stores the comments so that the 
      commentsMadeR = commentsMade;            // most recent comments appear at the top of the list
      
      //makes a listview from the reversed string array
      ArrayAdapter adapter = new ArrayAdapter<String>(this, 
              R.layout.comments_post_item, commentsMadeR);
              
              ListView listView = (ListView) findViewById(R.id.comments_list_view);
              listView.setAdapter(adapter);

    postEditText = (EditText) findViewById(R.id.edit_comment); //gets the text that was inputted by the user
    
      postButton = (Button) findViewById(R.id.submit_comment_button);
      postButton.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
          post();
        }
      });
  }

    private void post () {    
      
      String text = postEditText.getText().toString();
      String userFullName = user.getString("fullName").toString();
    String[] firstLast = userFullName.split("\\^");
    String finalName = (firstLast[0] + " " + firstLast[1]); //we add the user's full name to the beginning of the comment so
    String nameAndComment = (finalName + ": " + text);      // we know who made that comment 

      currentGoal.add("commentsList", nameAndComment); //stores the name and comment into the arrayList of strings called commentsList
      currentGoal.saveInBackground();
      
    Toast.makeText(getApplicationContext(), "Comment successfully posted", 
        Toast.LENGTH_LONG).show();
    postEditText.setText("");
    
      update();
    }
    
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.comment, menu);
        getActionBar().setDisplayShowTitleEnabled(false);
      return true;
    }
    
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
      Intent intent = new Intent(CommentActivity.this, ViewGoal.class)
      .putExtra("goal_id", goalID)
      .putExtra("goal_owner", ownerName);
      
    startActivity(intent);
    return true;
    }
  
}

Java Source Code List

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