// Get data back from child activity.
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK) {
return;
}
String id = data.getStringExtra(Constants.KEY_ID);
String subject = data.getStringExtra(Constants.KEY_SUBJECT);
String body = data.getStringExtra(Constants.KEY_BODY);
String url = data.getStringExtra(Constants.KEY_URL);
float rating = data.getFloatExtra(Constants.KEY_RATING, 0);
boolean isWatched = data.getBooleanExtra(Constants.KEY_IS_WATCHED, false);
// When returning from Editor Screen, add/update a movie in the list.
if (requestCode == REQUEST_EDITOR) {
if (id.equals(Constants.VALUE_NEW_MOVIE)) {
// New Movie in list.
Movie movie = new Movie(subject, body, url, rating, isWatched);
mMovies.add(movie);
// Add to file.
FileManager.addToFile(this, FILE_NAME, movie);
} else {
int position = data.getIntExtra(Constants.KEY_POSITION, -1);
// Update the movie in list at id position.
Movie movie = mMovies.get(position);
movie.setSubject(subject);
movie.setBody(body);
movie.setUrl(url);
movie.setRating(rating);
movie.setIsWatched(isWatched);
// Rewrite the file.
FileManager.saveFile(this, FILE_NAME, mMovies);
}
}
// On returning from Search screen, add new movie in the list.
else if (requestCode == REQUEST_SEARCH) {
// New Movie in list.
Movie movie = new Movie(id, subject, body, url);
movie.setRating(rating);
mMovies.add(movie);
// Add to file.
FileManager.addToFile(this, FILE_NAME, movie);
}
mMainListAdapter.notifyDataSetChanged();
}
// On open application create listview, load movie data from file and
// show it.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Loading movie list from the file, if failed - reset the array list.
if (FileManager.loadFile(this, FILE_NAME, mMovies) == FileManager.RESULT_ERROR) {
mMovies = new ArrayList<>();
}
mListViewMovies = (ListView) findViewById(R.id.listViewMainMovies);
mEmptyMainMovieList = (TextView) findViewById(R.id.emptyMainMovieList);
mTextViewMainTopic = (TextView) findViewById(R.id.textViewMainTopic);
// ListView adapter initialising.
mMainListAdapter = new MainListAdapter(this, mMovies);
mListViewMovies.setAdapter(mMainListAdapter);
// On Item click transferring to Editor Screen.
mListViewMovies.setOnItemClickListener(
new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
transferToEditorActivity(position);
}
});
// On Item Long click, open menu for edit and delete options.
mListViewMovies.setOnItemLongClickListener(
new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(
AdapterView<?> parent, View view, final int position, long id) {
PopupMenu popupMenu = new PopupMenu(MainActivity.this, view);
popupMenu.setOnMenuItemClickListener(
new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
// Delete the movie from list and file.
case R.id.action_delete:
// Open confirmation dialog.
new AlertDialog.Builder(MainActivity.this)
.setTitle(R.string.dialog_delete_movie_title)
.setMessage(R.string.dialog_delete_all_message)
.setPositiveButton(
R.string.dialog_delete_movie_positive_button_label,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
mMovies.remove(position);
FileManager.saveFile(MainActivity.this, FILE_NAME, mMovies);
mMainListAdapter.notifyDataSetChanged();
}
})
.setNegativeButton(R.string.button_cancel_label, null)
.create()
.show();
break;
// Go to Editor activity.
case R.id.action_edit:
transferToEditorActivity(position);
break;
}
return true;
}
});
popupMenu.inflate(R.menu.menu_item);
popupMenu.show();
return true;
}
});
mListViewMovies.setEmptyView(mEmptyMainMovieList);
}