Android Open Source - watchme Add Movie Activity

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License

The source code is released under:
Copyright (c) 2012 Johan Brook, Robin Andersson, Lisa Stenberg, Mattias Henriksson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documen...
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Java Source Code

/**
*  AddMovieActivity.java/*  ww  w.ja  v  a 2  s . c  o  m*/
*
*  @author Robin Andersson
*  @copyright (c) 2012 Johan Brook, Robin Andersson, Lisa Stenberg, Mattias Henriksson
*  @license MIT
*/

package se.chalmers.watchme.activity;

import java.util.Calendar;
import java.util.HashMap;
import java.util.Map;
import org.json.JSONObject;
import se.chalmers.watchme.database.DatabaseAdapter;
import se.chalmers.watchme.database.MovieAlreadyExistsException;
import se.chalmers.watchme.model.Movie;
import se.chalmers.watchme.R;
import se.chalmers.watchme.ui.DatePickerFragment;
import se.chalmers.watchme.ui.DatePickerFragment.DatePickerListener;
import se.chalmers.watchme.utils.DateTimeUtils;
import se.chalmers.watchme.utils.MenuUtils;
import se.chalmers.watchme.utils.MovieHelper;
import se.chalmers.watchme.net.IMDBHandler;
import se.chalmers.watchme.notifications.NotificationClient;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.RatingBar;
import android.widget.TextView;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.widget.Toast;
import android.support.v4.app.NavUtils;

public class AddMovieActivity extends FragmentActivity implements DatePickerListener {
  
  private TextView dateField;
  private TextView tagField;
  private TextView noteField;
  private AutoCompleteTextView titleField;
  private MenuItem menuAddButton;
  
  // The handler to interface with the notification system and scheduler
  private NotificationClient notifications = new NotificationClient(this);
  
  // The list adapter for the auto complete box
  private ArrayAdapter<JSONObject> autoCompleteAdapter;
  
  private Calendar releaseDate;
  
  private DatabaseAdapter db;
  
    @SuppressLint("NewApi")
  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_add_movie);
        getActionBar().setDisplayHomeAsUpEnabled(true);
        
        db = new DatabaseAdapter(getContentResolver());
        
        this.releaseDate = Calendar.getInstance();
        this.autoCompleteAdapter = new AutoCompleteAdapter(this, R.layout.auto_complete_item, new IMDBHandler());
        
        initUIControls();
        
        this.notifications.connectToService();
    }
    
    /**
     * Create references to UI elements in the XML
     */
    private void initUIControls() {
        this.dateField = (TextView) findViewById(R.id.release_date_label);
        this.dateField.setText(DateTimeUtils.toSimpleDate(this.releaseDate));
        
        this.titleField = (AutoCompleteTextView) findViewById(R.id.title_field);
        this.noteField = (TextView) findViewById(R.id.note_field_addmovie);
        this.tagField = (TextView) findViewById(R.id.tag_field_addmovie);
        
        // Add listeners to the title field
        this.titleField.addTextChangedListener(new AddButtonToggler());
        this.titleField.setOnItemClickListener(new AutoCompleteClickListener());
        // Set a minimum of 3 characters in order to kick-off auto complete
        this.titleField.setThreshold(3);
        
        this.titleField.setAdapter(this.autoCompleteAdapter);
        
    }
    
    /**
     * Click callback. Create a new Movie object and set it on
     * the Intent, and then finish this Activity.
     */
    public void onAddButtonClick(View view) {
      
      addMovie();
    }
    
    private void addMovie() {
      
      // Get the movie from the auto-complete field 
      Movie movie = (Movie) this.titleField.getTag();
      String title = this.titleField.getText().toString();
      
      /*
       * If the auto-complete failed, or if the user choses
       * a movie from the dropdown and later erases the title
       * text to something custom, *without* choosing a new 
       * suggestion from the list.
       */
      if(movie == null || !movie.getTitle().equals(title)) {
        movie = new Movie(title);
      }
      
      movie.setNote(this.noteField.getText().toString());
      movie.setDate(releaseDate);
      
    /*
     * Extract the rating from the ratingBar and convert it to
     * an integer
     */
    RatingBar ratingBar = (RatingBar) findViewById(R.id.rating_bar); 
    int rating = (int) ratingBar.getRating();
    movie.setRating(rating);
    
    // Insert into database
    try {
      db.addMovie(movie);
      // Set a notification for the date picked
        this.setNotification(movie);
        
        /* 
       * Split the text input into separate strings input at
       * commas (",") from tag-field
       */
      String [] tagStrings = tagField.getText().toString().split(",");
      
      db.attachTags(movie, MovieHelper.stringArrayToTagList(tagStrings));
        
      // If everything went alright, return to the movie list view
        finish();
        
    } catch (MovieAlreadyExistsException e) {
      // If the movie already exists, show a message
      Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
    }
    }
    
    /**
     * Queue a notification for the added movie
     * 
     * @param movie The movie
     */
    private void setNotification(Movie movie) {
      this.notifications.setMovieNotification(movie);
      
      Toast.makeText(this, 
          getString(R.string.notification_prefix_text) + 
          DateTimeUtils.toSimpleDate(movie.getDate()), 
          Toast.LENGTH_LONG)
        .show();
    }
    
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_add_movie, menu);
        
        menuAddButton = menu.findItem(R.id.menu_add_movie);
        MenuUtils.setMenuIconState(menuAddButton);
        
        return true;
    }
    
    @Override
    protected void onStop() {
      // Disconnect the service (if started) when this activity is stopped.
      
      if(this.notifications != null) {
        this.notifications.disconnectService();
      }
      
      super.onStop();
    }
    
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                NavUtils.navigateUpFromSameTask(this);
                return true;
                
            case R.id.menu_add_movie:
              addMovie();
              
        }
        return super.onOptionsItemSelected(item);
    }
    
    // @Override is not allowed in Java 1.5 for inherited interface methods
    public void setDate(Calendar pickedDate) {
    this.releaseDate = pickedDate;

    dateField.setText(DateTimeUtils.toSimpleDate(this.releaseDate));
    
  }
    
    /**
     * Click callback. Shows the date picker for a movies release date
     */
    public void onDatePickerButtonClick(View v) {
    DialogFragment datePickerFragment = new DatePickerFragment();
        datePickerFragment.show(getSupportFragmentManager(),
            "datePicker");
  }
    
    private class AddButtonToggler implements TextWatcher {
          
        public void onTextChanged(CharSequence s, int start, int before, int count) {
          
          // Show/hide add movie button in menu if title is set
          menuAddButton.setEnabled(!s.toString().isEmpty());
          
          MenuUtils.setMenuIconState(menuAddButton);
        }

    public void afterTextChanged(Editable arg0) {
      // Empty. Needs to be here
    }

    public void beforeTextChanged(CharSequence s, int start, int count,
        int after) {
      // Empty. Needs to be here
    }

    }
    
    /**
     * Class responsible for listening to click events in the auto complete
     * dropdown box. 
     * 
     * <p>Creates a new Movie from the JSON object chosen from the list and 
     * tags it to the title field.</p>
     * 
     * @author Johan
     */
    private class AutoCompleteClickListener implements OnItemClickListener {

    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
      // Get the actual JSON object
      JSONObject json = autoCompleteAdapter.getItem(position);
      
      // Create a new movie from the object
      Movie movie = new Movie(json.optString(Movie.JSON_KEY_NAME));
      
      // Parse out the poster URLs
      
      String largeImage = MovieHelper.getPosterFromCollection(
            json.optJSONArray("posters"), 
            Movie.PosterSize.MID);
      
      String smallImage = MovieHelper.getPosterFromCollection(
          json.optJSONArray("posters"), 
          Movie.PosterSize.THUMB);
      
      Map<Movie.PosterSize, String> posters = new HashMap<Movie.PosterSize, String>();
      posters.put(Movie.PosterSize.MID, largeImage);
      posters.put(Movie.PosterSize.THUMB, smallImage);
      
      movie.setPosters(posters);
      movie.setApiID(json.optInt(Movie.JSON_KEY_ID, Movie.NO_API_ID));
      
      // Tag the field with this movie object
      titleField.setTag(movie);
    }
      
    }
    
}
Java Source Code List
