Differential D17 Diff 56 src/it/reyboz/bustorino/ActivityFavorites.java

Changeset View

Standalone View

src/it/reyboz/bustorino/ActivityFavorites.java

	/*			/*
	BusTO - Arrival times for Turin public transports.			BusTO - Arrival times for Turin public transports.
	Copyright (C) 2014 Valerio Bozzolan			Copyright (C) 2014 Valerio Bozzolan

	This program is free software: you can redistribute it and/or modify			This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by			it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or			the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.			(at your option) any later version.

	This program is distributed in the hope that it will be useful,			This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of			but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.			GNU General Public License for more details.

	You should have received a copy of the GNU General Public License			You should have received a copy of the GNU General Public License
	along with this program. If not, see <http://www.gnu.org/licenses/>.			along with this program. If not, see <http://www.gnu.org/licenses/>.
	*/			*/
	package it.reyboz.bustorino;			package it.reyboz.bustorino;

	import android.database.Cursor;			import android.database.Cursor;
	import android.support.v4.app.LoaderManager;			import android.support.v4.app.LoaderManager;
	import android.support.v4.content.Loader;			import android.support.v4.content.Loader;
	import android.widget.*;			import android.widget.*;
	import it.reyboz.bustorino.backend.Stop;			import it.reyboz.bustorino.backend.Stop;
	import it.reyboz.bustorino.adapters.StopAdapter;			import it.reyboz.bustorino.adapters.StopAdapter;
	import it.reyboz.bustorino.middleware.AsyncStopFavoriteAction;			import it.reyboz.bustorino.middleware.AsyncStopFavoriteAction;
	import it.reyboz.bustorino.middleware.StopsDB;			import it.reyboz.bustorino.middleware.StopsDB;
	import it.reyboz.bustorino.middleware.UserDB;			import it.reyboz.bustorino.middleware.UserDB;

	import android.app.AlertDialog;			import android.app.AlertDialog;
	import android.content.Context;			import android.content.Context;
	import android.content.DialogInterface;			import android.content.DialogInterface;
	import android.net.Uri;			import android.net.Uri;
	import android.os.AsyncTask;			import android.os.AsyncTask;
	import android.support.v4.app.NavUtils;			import android.support.v4.app.NavUtils;
	import android.support.v7.app.ActionBar;			import android.support.v7.app.ActionBar;
	import android.support.v7.app.AppCompatActivity;			import android.support.v7.app.AppCompatActivity;
	import android.view.ContextMenu;			import android.view.ContextMenu;
	import android.view.ContextMenu.ContextMenuInfo;			import android.view.ContextMenu.ContextMenuInfo;
	import android.view.LayoutInflater;			import android.view.LayoutInflater;
	import android.view.MenuInflater;			import android.view.MenuInflater;
	import android.view.MenuItem;			import android.view.MenuItem;
	import android.view.View;			import android.view.View;
	import android.widget.AdapterView.AdapterContextMenuInfo;			import android.widget.AdapterView.AdapterContextMenuInfo;
	import android.content.Intent;			import android.content.Intent;
	import android.database.sqlite.SQLiteDatabase;			import android.database.sqlite.SQLiteDatabase;
	import android.os.Bundle;			import android.os.Bundle;

	import java.util.List;			import java.util.List;

	public class ActivityFavorites extends AppCompatActivity implements LoaderManager.LoaderCallbacks<Cursor> {			public class ActivityFavorites extends AppCompatActivity implements LoaderManager.LoaderCallbacks<Cursor> {
	private ListView favoriteListView;			private ListView favoriteListView;
	private SQLiteDatabase userDB;			private SQLiteDatabase userDB;
	private EditText bus_stop_name;			private EditText bus_stop_name;

	@Override			@Override
	protected void onCreate(Bundle savedInstanceState) {			protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);			super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_favorites);			setContentView(R.layout.activity_favorites);

	// this should be done in onStarted and closed in onStop, but apparently onStarted is never run.			// this should be done in onStarted and closed in onStop, but apparently onStarted is never run.
	this.userDB = new UserDB(getApplicationContext()).getWritableDatabase();			this.userDB = new UserDB(getApplicationContext()).getWritableDatabase();

	ActionBar ab = getSupportActionBar();			ActionBar ab = getSupportActionBar();
	assert ab != null;			assert ab != null;
	ab.setIcon(R.drawable.ic_launcher);			ab.setIcon(R.drawable.ic_launcher);
	ab.setDisplayHomeAsUpEnabled(true); // Back button			ab.setDisplayHomeAsUpEnabled(true); // Back button

	favoriteListView = (ListView) findViewById(R.id.favoriteListView);			favoriteListView = (ListView) findViewById(R.id.favoriteListView);

	createFavoriteList();			createFavoriteList();
	}			}

	@Override			@Override
	public void onCreateContextMenu(ContextMenu menu, View v,			public void onCreateContextMenu(ContextMenu menu, View v,
	ContextMenuInfo menuInfo) {			ContextMenuInfo menuInfo) {
	super.onCreateContextMenu(menu, v, menuInfo);			super.onCreateContextMenu(menu, v, menuInfo);
	if (v.getId() == R.id.favoriteListView) {			if (v.getId() == R.id.favoriteListView) {
	MenuInflater inflater = getMenuInflater();			MenuInflater inflater = getMenuInflater();
	inflater.inflate(R.menu.menu_favourites_entry, menu);			inflater.inflate(R.menu.menu_favourites_entry, menu);
	}			}
	}			}

	@Override			@Override
	public boolean onOptionsItemSelected(MenuItem item) {			public boolean onOptionsItemSelected(MenuItem item) {
	switch (item.getItemId()) {			switch (item.getItemId()) {
	// Respond to the action bar's Up/Home button			// Respond to the action bar's Up/Home button
	case android.R.id.home:			case android.R.id.home:
	NavUtils.navigateUpFromSameTask(this);			NavUtils.navigateUpFromSameTask(this);
	return true;			return true;
	}			}
	return super.onOptionsItemSelected(item);			return super.onOptionsItemSelected(item);
	}			}

	@Override			@Override
	public boolean onContextItemSelected(MenuItem item) {			public boolean onContextItemSelected(MenuItem item) {
	AdapterContextMenuInfo info = (AdapterContextMenuInfo) item			AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
	.getMenuInfo();			.getMenuInfo();

	Stop busStop = (Stop) favoriteListView.getItemAtPosition(info.position);			Stop busStop = (Stop) favoriteListView.getItemAtPosition(info.position);

	switch (item.getItemId()) {			switch (item.getItemId()) {
	case R.id.action_favourite_entry_delete:			case R.id.action_favourite_entry_delete:

	// remove the stop from the favorites in background			// remove the stop from the favorites in background
	new AsyncStopFavoriteAction(getApplicationContext(), AsyncStopFavoriteAction.Action.REMOVE) {			new AsyncStopFavoriteAction(getApplicationContext(), AsyncStopFavoriteAction.Action.REMOVE) {

	/**			/**
	* Callback fired when everything was done			* Callback fired when everything was done
	*			*
	* @param result			* @param result
	*/			*/
	@Override			@Override
	protected void onPostExecute(Boolean result) {			protected void onPostExecute(Boolean result) {
	super.onPostExecute(result);			super.onPostExecute(result);

	// update the favorite list			// update the favorite list
	createFavoriteList();			createFavoriteList();
	}			}
	}.execute(busStop);			}.execute(busStop);

	return true;			return true;
	case R.id.action_rename_bus_stop_username:			case R.id.action_rename_bus_stop_username:
	showBusStopUsernameInputDialog(busStop);			showBusStopUsernameInputDialog(busStop);
	return true;			return true;
	case R.id.action_view_on_map:			case R.id.action_view_on_map:
	final String theGeoUrl = busStop.getGeoURL();			final String theGeoUrl = busStop.getGeoURL();
	if(theGeoUrl==null){			if(theGeoUrl==null){
	//doesn't have a position			//doesn't have a position
	Toast.makeText(getApplicationContext(),R.string.cannot_show_on_map_no_position,Toast.LENGTH_SHORT).show();			Toast.makeText(getApplicationContext(),R.string.cannot_show_on_map_no_position,Toast.LENGTH_SHORT).show();
	return true;			return true;
	}			}
	Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(theGeoUrl));			Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(theGeoUrl));
	intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);			intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
	if(intent.resolveActivity(getPackageManager())!=null)			if(intent.resolveActivity(getPackageManager())!=null)
	startActivity(intent);			startActivity(intent);
	else {			else {
	Toast.makeText(getApplicationContext(),R.string.cannot_show_on_map_no_activity,Toast.LENGTH_SHORT).show();			Toast.makeText(getApplicationContext(),R.string.cannot_show_on_map_no_activity,Toast.LENGTH_SHORT).show();
	}			}
	return true;			return true;
	default:			default:
	return super.onContextItemSelected(item);			return super.onContextItemSelected(item);
	}			}
	}			}

	void createFavoriteList() {			void createFavoriteList() {
	// TODO: memoize default list, query only user names every time?			// TODO: memoize default list, query only user names every time?
	new AsyncGetFavorites(getApplicationContext(), this.userDB).execute();			new AsyncGetFavorites(getApplicationContext(), this.userDB).execute();
	}			}

	public void showBusStopUsernameInputDialog(final Stop busStop) {			public void showBusStopUsernameInputDialog(final Stop busStop) {
	AlertDialog.Builder builder = new AlertDialog.Builder(this);			AlertDialog.Builder builder = new AlertDialog.Builder(this);

	LayoutInflater inflater = this.getLayoutInflater();			LayoutInflater inflater = this.getLayoutInflater();
	View renameDialogLayout = inflater.inflate(R.layout.rename_dialog, null);			View renameDialogLayout = inflater.inflate(R.layout.rename_dialog, null);

	bus_stop_name = (EditText) renameDialogLayout.findViewById(R.id.rename_dialog_bus_stop_name);			bus_stop_name = (EditText) renameDialogLayout.findViewById(R.id.rename_dialog_bus_stop_name);
	bus_stop_name.setText(busStop.getStopDisplayName());			bus_stop_name.setText(busStop.getStopDisplayName());
	bus_stop_name.setHint(busStop.getStopDefaultName());			bus_stop_name.setHint(busStop.getStopDefaultName());

	builder.setTitle(getString(R.string.dialog_rename_bus_stop_username_title));			builder.setTitle(getString(R.string.dialog_rename_bus_stop_username_title));
	builder.setView(renameDialogLayout);			builder.setView(renameDialogLayout);
	builder.setPositiveButton(getString(android.R.string.ok), new DialogInterface.OnClickListener() {			builder.setPositiveButton(getString(android.R.string.ok), new DialogInterface.OnClickListener() {
	@Override			@Override
	public void onClick(DialogInterface dialog, int which) {			public void onClick(DialogInterface dialog, int which) {
	String busStopUsername = bus_stop_name.getText().toString();			String busStopUsername = bus_stop_name.getText().toString();
	String oldUserName = busStop.getStopUserName();			String oldUserName = busStop.getStopUserName();

	// changed to none			// changed to none
	if(busStopUsername.length() == 0) {			if(busStopUsername.length() == 0) {
	// unless it was already empty, set new			// unless it was already empty, set new
	if(oldUserName != null) {			if(oldUserName != null) {
	busStop.setStopUserName(null);			busStop.setStopUserName(null);
	UserDB.updateStop(busStop, userDB);			UserDB.updateStop(busStop, userDB);
	createFavoriteList();			createFavoriteList();
	}			}
	} else { // changed to something			} else { // changed to something
	// something different?			// something different?
	if(oldUserName == null \|\| !busStopUsername.equals(oldUserName)) {			if(oldUserName == null \|\| !busStopUsername.equals(oldUserName)) {
	busStop.setStopUserName(busStopUsername);			busStop.setStopUserName(busStopUsername);
	UserDB.updateStop(busStop, userDB);			UserDB.updateStop(busStop, userDB);
	createFavoriteList();			createFavoriteList();
	}			}
	}			}
	}			}
	});			});
	builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {			builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
	@Override			@Override
	public void onClick(DialogInterface dialog, int which) {			public void onClick(DialogInterface dialog, int which) {
	dialog.cancel();			dialog.cancel();
	}			}
	});			});
	builder.setNeutralButton(R.string.dialog_rename_bus_stop_username_reset_button, new DialogInterface.OnClickListener() {			builder.setNeutralButton(R.string.dialog_rename_bus_stop_username_reset_button, new DialogInterface.OnClickListener() {
	@Override			@Override
	public void onClick(DialogInterface dialog, int which) {			public void onClick(DialogInterface dialog, int which) {
	// delete user name from database			// delete user name from database
	busStop.setStopUserName(null);			busStop.setStopUserName(null);
	UserDB.updateStop(busStop, userDB);			UserDB.updateStop(busStop, userDB);

	createFavoriteList();			createFavoriteList();
	}			}
	});			});
	builder.show();			builder.show();
	}			}

	/**			/**
	* This one runs. onStart instead gets ignored for no reason whatsoever.			* This one runs. onStart instead gets ignored for no reason whatsoever.
	*			*
	* @see <a href="https://i.stack.imgur.com/SAX9I.png">Android Activity Lifecycle</a>			* @see <a href="https://i.stack.imgur.com/SAX9I.png">Android Activity Lifecycle</a>
	*/			*/
	@Override			@Override
	protected void onStop() {			protected void onStop() {
	super.onStop();			super.onStop();
	this.userDB.close();			this.userDB.close();
	}			}

	@Override			@Override
	public Loader<Cursor> onCreateLoader(int id, Bundle args) {			public Loader<Cursor> onCreateLoader(int id, Bundle args) {
	return null;			return null;
	}			}

	@Override			@Override
	public void onLoadFinished(Loader<Cursor> loader, Cursor data) {			public void onLoadFinished(Loader<Cursor> loader, Cursor data) {

	}			}

	@Override			@Override
	public void onLoaderReset(Loader<Cursor> loader) {			public void onLoaderReset(Loader<Cursor> loader) {

	}			}

	private class AsyncGetFavorites extends AsyncTask<Void, Void, List<Stop>> {			private class AsyncGetFavorites extends AsyncTask<Void, Void, List<Stop>> {
	private Context c;			private Context c;
	private SQLiteDatabase userDB;			private SQLiteDatabase userDB;

	AsyncGetFavorites(Context c, SQLiteDatabase userDB) {			AsyncGetFavorites(Context c, SQLiteDatabase userDB) {
	this.c = c;			this.c = c;
	this.userDB = userDB;			this.userDB = userDB;
	}			}

	@Override			@Override
	protected List<Stop> doInBackground(Void... voids) {			protected List<Stop> doInBackground(Void... voids) {
	StopsDB stopsDB = new StopsDB(c);			StopsDB stopsDB = new StopsDB(c);
	stopsDB.openIfNeeded();			stopsDB.openIfNeeded();
	List<Stop> busStops = UserDB.getFavorites(this.userDB, stopsDB);			List<Stop> busStops = UserDB.getFavorites(this.userDB, stopsDB);
	stopsDB.closeIfNeeded();			stopsDB.closeIfNeeded();

	return busStops;			return busStops;
	}			}

	@Override			@Override
	protected void onPostExecute(List<Stop> busStops) {			protected void onPostExecute(List<Stop> busStops) {
	// If no data is found show a friendly message			// If no data is found show a friendly message
	if (busStops.size() == 0) {			if (busStops.size() == 0) {
	favoriteListView.setVisibility(View.INVISIBLE);			favoriteListView.setVisibility(View.INVISIBLE);
	TextView favoriteTipTextView = (TextView) findViewById(R.id.favoriteTipTextView);			TextView favoriteTipTextView = (TextView) findViewById(R.id.favoriteTipTextView);
	assert favoriteTipTextView != null;			assert favoriteTipTextView != null;
	favoriteTipTextView.setVisibility(View.VISIBLE);			favoriteTipTextView.setVisibility(View.VISIBLE);
	}			}

	/* There's a nice method called notifyDataSetChanged() to avoid building the ListView			/* There's a nice method called notifyDataSetChanged() to avoid building the ListView
	* all over again. This method exists in a billion answers on Stack Overflow, but			* all over again. This method exists in a billion answers on Stack Overflow, but
	* it's nowhere to be seen around here, Android Studio can't find it no matter what.			* it's nowhere to be seen around here, Android Studio can't find it no matter what.
	* Anyway, it only works from Android 2.3 onward (which is why it refuses to appear, I			* Anyway, it only works from Android 2.3 onward (which is why it refuses to appear, I
	* guess) and requires to modify the list with .add() and .clear() and some other			* guess) and requires to modify the list with .add() and .clear() and some other
	* methods, so to update a single stop we need to completely rebuild the list for no			* methods, so to update a single stop we need to completely rebuild the list for no
	* reason. It would probably end up as "slow" as throwing away the old ListView and			* reason. It would probably end up as "slow" as throwing away the old ListView and
	* redrwaing everything.			* redrwaing everything.
	*/			*/

	// Show results			// Show results
	favoriteListView.setAdapter(new StopAdapter(this.c, busStops));			favoriteListView.setAdapter(new StopAdapter(this.c, busStops));
	favoriteListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {			favoriteListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
	public void onItemClick(AdapterView<?> parent, View view, int position, long id) {			public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
	/**			/**
	* Casting because of Javamerda			* Casting because of Javamerda
	* @url http://stackoverflow.com/questions/30549485/androids-list-view-parameterized-type-in-adapterview-onitemclicklistener			* @url http://stackoverflow.com/questions/30549485/androids-list-view-parameterized-type-in-adapterview-onitemclicklistener
	*/			*/
	Stop busStop = (Stop) parent.getItemAtPosition(position);			Stop busStop = (Stop) parent.getItemAtPosition(position);

	Intent intent = new Intent(ActivityFavorites.this,			Intent intent = new Intent(ActivityFavorites.this,
	ActivityMain.class);			ActivityMain.class);

	Bundle b = new Bundle();			Bundle b = new Bundle();
	// TODO: is passing a serialized object a good idea? Or rather, is it reasonably fast?			// TODO: is passing a serialized object a good idea? Or rather, is it reasonably fast?
	//b.putSerializable("bus-stop-serialized", busStop);			//b.putSerializable("bus-stop-serialized", busStop);
	b.putString("bus-stop-ID", busStop.ID);			b.putString("bus-stop-ID", busStop.ID);
	b.putString("bus-stop-display-name", busStop.getStopDisplayName());			b.putString("bus-stop-display-name", busStop.getStopDisplayName());
	intent.putExtras(b);			intent.putExtras(b);
	//intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK \| Intent.FLAG_ACTIVITY_NEW_TASK);			//intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK \| Intent.FLAG_ACTIVITY_NEW_TASK);
	// Intent.FLAG_ACTIVITY_CLEAR_TASK isn't supported in API < 11 and we're targeting API 7...			// Intent.FLAG_ACTIVITY_CLEAR_TASK isn't supported in API < 11 and we're targeting API 7...
	intent.setFlags(Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP);			intent.setFlags(Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP);

	startActivity(intent);			startActivity(intent);

	finish();			finish();
	}			}
	});			});
	registerForContextMenu(favoriteListView);			registerForContextMenu(favoriteListView);
	}			}
	}			}
	}			}