Back to project page Realtime-Port-Authority.
The source code is released under:
Apache License
If you think the Android project Realtime-Port-Authority listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
package rectangledbmi.com.pittsburghrealtimetracker; /*from w w w .jav a2s.c om*/ import android.app.Activity; import android.os.Environment; import android.support.v7.app.ActionBar; import android.support.v4.app.Fragment; import android.content.SharedPreferences; import android.content.res.Configuration; import android.graphics.Color; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.support.v7.widget.Toolbar; import android.util.Log; import android.util.SparseBooleanArray; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.Toast; import java.io.File; import java.util.ArrayList; import java.util.Collections; import java.util.HashSet; import java.util.Set; import rectangledbmi.com.pittsburghrealtimetracker.handlers.extend.ColoredArrayAdapter; import rectangledbmi.com.pittsburghrealtimetracker.world.Route; /** * Fragment used for managing interactions for and presentation of a navigation drawer. * See the <a href="https://developer.android.com/design/patterns/navigation-drawer.html#Interaction"> * design guidelines</a> for a complete explanation of the behaviors implemented here. */ public class NavigationDrawerFragment extends Fragment { private static final String BUSLIST_SIZE = "buslist_size"; private static final String MAX_CHECKED = "max_checked"; /** * Remember the position of the selected item. */ private static final String STATE_SELECTED_POSITIONS = "selected_navigation_drawer_positions"; /** * Per the design guidelines, you should show the drawer on launch until the user manually * expands it. This shared preference tracks this. */ private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned"; /** * Key value for the selected buses */ private static final String DRAWER_STATE = "drawer_state"; /** * A pointer to the current callbacks instance (the Activity). */ private NavigationDrawerCallbacks mCallbacks; /** * Helper component that ties the action bar to the navigation drawer. */ private ActionBarDrawerToggle mDrawerToggle; private DrawerLayout mDrawerLayout; private ListView mDrawerListView; private View mFragmentContainerView; private boolean[] mSelected; private int amountSelected; private boolean mFromSavedInstanceState; private boolean mUserLearnedDrawer; private Toolbar toolbar; public NavigationDrawerFragment() { } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Read in the flag indicating whether or not the user has demonstrated awareness of the // drawer. See PREF_USER_LEARNED_DRAWER for details. SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity()); mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER, false); //TODO need to use an xml value to get length of this list mSelected = new boolean[getResources().getStringArray(R.array.buses).length]; if (savedInstanceState != null) { //TODO: learn how to use savedInstanceState to get previous buses back mFromSavedInstanceState = true; } amountSelected = 0; // Select either the default item (0) or the last selected item. // selectItem(mCurrentSelectedPosition); } @Override public void onActivityCreated (Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); // Indicate that this fragment would like to influence the set of actions in the action bar. setHasOptionsMenu(true); restoreListView(); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { super.onCreateView(inflater, container, savedInstanceState); mDrawerListView = (ListView) inflater.inflate( R.layout.fragment_navigation_drawer, container, false); mDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { selectItem(position); } }); mDrawerListView.setAdapter( new ColoredArrayAdapter( getActionBar().getThemedContext(), R.layout.row_list, createRoutes() ) ); mDrawerListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); // mDrawerListView.setItemChecked(mCurrentSelectedPosition, true); /* if(savedInstanceState != null) { mDrawerListView.onRestoreInstanceState(savedInstanceState.getParcelable(DRAWER_STATE)); savedInstanceState.putBooleanArray(STATE_SELECTED_POSITIONS, mSelected); }*/ return mDrawerListView; } private void restoreListView() { SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity()); // System.out.println("In restore view"); // mSelected = new boolean[getResources().getStringArray(R.array.buses).length]; amountSelected = 0; int list_size = sp.getInt(BUSLIST_SIZE, -1); if(getResources().getStringArray(R.array.buses).length == list_size) { for (String selected : sp.getStringSet(STATE_SELECTED_POSITIONS, Collections.synchronizedSet(new HashSet<String>(0)))) { setTrue(Integer.parseInt(selected)); // System.out.println("Restoring: " + selected); } } else { //Something should be here... if(list_size != -1) Toast.makeText(getActivity(), "New buses were added. Please re-select your buses", Toast.LENGTH_LONG).show(); } } /** * Creates an arraylist of routes for the list view. * * TODO: This is rather slow and takes up some time according to the Android Studio crap debugger * @return the routes to be made for the listview */ private ArrayList<Route> createRoutes() { String[] numbers, descriptions, colors; numbers = getResources().getStringArray(R.array.buses); descriptions = getResources().getStringArray(R.array.bus_description); colors = getResources().getStringArray(R.array.buscolors); ArrayList<Route> routes = new ArrayList<Route>(numbers.length); for(int i=0;i<numbers.length;++i) { routes.add(new Route(numbers[i], descriptions[i], colors[i])); } return routes; } public boolean isDrawerOpen() { return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView); } /** * Users of this fragment must call this method to set up the navigation drawer interactions. * * @param fragmentId The android:id of this fragment in its activity's layout. * @param drawerLayout The DrawerLayout containing this fragment's UI. */ public void setUp(int fragmentId, DrawerLayout drawerLayout) { mFragmentContainerView = getActivity().findViewById(fragmentId); mDrawerLayout = drawerLayout; toolbar = (Toolbar) getView().findViewById(R.id.toolbar); // set a custom shadow that overlays the main content when the drawer opens mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // set up the drawer's list view with items and click listener // ActionBar actionBar = getActionBar(); // actionBar.setDisplayHomeAsUpEnabled(true); // actionBar.setHomeButtonEnabled(true); // ActionBarDrawerToggle ties together the the proper interactions // between the navigation drawer and the action bar app icon. mDrawerToggle = new ActionBarDrawerToggle( getActivity(), /* host Activity */ mDrawerLayout, /* DrawerLayout object */ toolbar, /* toolbar to put the navigationdrawer toggle on... */ R.string.navigation_drawer_open, /* "open drawer" description for accessibility */ R.string.navigation_drawer_close /* "close drawer" description for accessibility */ )/* mDrawerToggle = new ActionBarDrawerToggle( getActivity(), *//* host Activity *//* mDrawerLayout, *//* DrawerLayout object *//* R.drawable.ic_drawer, *//* nav drawer image to replace 'Up' caret *//* R.string.navigation_drawer_open, *//* "open drawer" description for accessibility *//* R.string.navigation_drawer_close *//* "close drawer" description for accessibility *//* )*/ { @Override public void onDrawerClosed(View drawerView) { super.onDrawerClosed(drawerView); ((SelectTransit)getActivity()).clearAndAddToMap(); if (!isAdded()) { return; } getActivity().invalidateOptionsMenu(); // calls onPrepareOptionsMenu() } @Override public void onDrawerOpened(View drawerView) { super.onDrawerOpened(drawerView); if (!isAdded()) { return; } if (!mUserLearnedDrawer) { // The user manually opened the drawer; store this flag to prevent auto-showing // the navigation drawer automatically in the future. mUserLearnedDrawer = true; SharedPreferences sp = PreferenceManager .getDefaultSharedPreferences(getActivity()); sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).apply(); } getActivity().invalidateOptionsMenu(); // calls onPrepareOptionsMenu() } }; // If the user hasn't 'learned' about the drawer, open it to introduce them to the drawer, // per the navigation drawer design guidelines. if (!mUserLearnedDrawer && !mFromSavedInstanceState) { mDrawerLayout.openDrawer(mFragmentContainerView); } // Defer code dependent on restoration of previous instance state. mDrawerLayout.post(new Runnable() { @Override public void run() { mDrawerToggle.syncState(); } }); mDrawerLayout.setDrawerListener(mDrawerToggle); } /** * Called with onClick. Gives the list item to SelectTransit by number starting from 0 * The selectItem is locked by * @param position item clicked as an int */ private void selectItem(int position) { if (mDrawerListView != null) { if (mSelected[position]) { setFalse(position); } else { setTrue(position); } if (mCallbacks != null) { mCallbacks.onNavigationDrawerItemSelected(position); } if(amountSelected == getResources().getInteger(R.integer.max_checked)) Toast.makeText(getActivity(), "You have selected the max amount of routes (" + getResources().getInteger(R.integer.max_checked) + ").", Toast.LENGTH_LONG).show(); else if (amountSelected > getResources().getInteger(R.integer.max_checked)) Toast.makeText(getActivity(), "Cannot select more than " + getResources().getInteger(R.integer.max_checked) + " routes.", Toast.LENGTH_LONG).show(); // mDrawerListView.setItemChecked(position, !(mDrawerListView.isItemChecked(position))); /* if(mSelected[position]) { mDrawerListView.setItemChecked(position, false); mSelected[position] = false; } else { mDrawerListView.setItemChecked(position, true); mSelected[position] = true; }*/ } } /** * Sets the position of the list to false * @param position the location of the selection in the listview */ private void setFalse(int position) { // System.out.println(position + " is now false"); mDrawerListView.setItemChecked(position, false); mSelected[position] = false; if(amountSelected > 0) --amountSelected; } /** * Sets the position of the list to true * @param position the location of the selection in the listview */ private void setTrue(int position) { // System.out.println(position + " is now true"); mDrawerListView.setItemChecked(position, true); mSelected[position] = true; ++amountSelected; } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mCallbacks = (NavigationDrawerCallbacks) activity; } catch (ClassCastException e) { throw new ClassCastException("Activity must implement NavigationDrawerCallbacks."); } } public boolean closeDrawer() { if(isDrawerOpen()) { mDrawerLayout.closeDrawer(mFragmentContainerView); return true; } return false; } public boolean openDrawer() { if(!isDrawerOpen()) { mDrawerLayout.openDrawer(mFragmentContainerView); return true; } return false; } @Override public void onDetach() { super.onDetach(); mCallbacks = null; } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // outState.putBooleanArray(STATE_SELECTED_POSITIONS, mSelected); // outState.putParcelable(DRAWER_STATE, mDrawerListView.onSaveInstanceState()); // outState.putInt(STATE_SELECTED_POSITION, mCurrentSelectedPosition); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Forward the new configuration the drawer toggle component. mDrawerToggle.onConfigurationChanged(newConfig); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { // If the drawer is open, show the global app actions in the action bar. See also // showGlobalContextActionBar, which controls the top-left area of the action bar. if (mDrawerLayout != null && isDrawerOpen()) { inflater.inflate(R.menu.global, menu); showGlobalContextActionBar(); } super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } if (item.getItemId() == R.id.action_clear) { clearSelection(); return true; } return super.onOptionsItemSelected(item); } /** * If the Clear Buses button is clicked, clears the selection and the selected buses */ private void clearSelection() { ((SelectTransit)getActivity()).clearBuses(); mSelected = new boolean[getResources().getStringArray(R.array.buses).length]; mDrawerListView.clearChoices(); ((SelectTransit)getActivity()).clearAndAddToMap(); amountSelected = 0; File lineInfo = new File(getActivity().getFilesDir(), "/lineinfo"); Log.i("clear-files", lineInfo.getAbsolutePath()); if(lineInfo.exists()) { File[] files = lineInfo.listFiles(); if(files != null) { for(File file : files) { file.delete(); } } } SharedPreferences sp = PreferenceManager .getDefaultSharedPreferences(getActivity()); sp.edit().putLong("lines_last_updated", System.currentTimeMillis()).apply(); Toast.makeText(getActivity(), getString(R.string.cleared), Toast.LENGTH_SHORT).show(); } /** * Per the navigation drawer design guidelines, updates the action bar to show the global app * 'context', rather than just what's in the current screen. */ private void showGlobalContextActionBar() { ActionBar actionBar = getActionBar(); actionBar.setDisplayShowTitleEnabled(true); // actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); actionBar.setTitle(R.string.app_name); } private ActionBar getActionBar() { return ((SelectTransit)getActivity()).getSupportActionBar(); } /** * Attempt to save the list view... */ @Override public void onStop() { savePreferences(); super.onStop(); } /** * Method to save preferences... */ private void savePreferences() { SharedPreferences sp = PreferenceManager .getDefaultSharedPreferences(getActivity()); SparseBooleanArray checked = mDrawerListView.getCheckedItemPositions(); Set<String> listIds = Collections.synchronizedSet(new HashSet<String>(10)); // System.out.println("In Stop. Size of Checked...: " + checked.size()); /* for(long id : mDrawerListView.getCheckedItemIds()) { listIds.add(Long.toString(id)); System.out.println("Saving: " + id); }*/ for(int i=0;i<mDrawerListView.getCount();++i) { if(checked.get(i)) { listIds.add(Integer.toString(i)); // System.out.println("Saving: " + i); } } sp.edit().putStringSet(STATE_SELECTED_POSITIONS, listIds).apply(); } /** * Callbacks interface that all activities using this fragment must implement. */ public static interface NavigationDrawerCallbacks { /** * Called when an item in the navigation drawer is selected. */ void onNavigationDrawerItemSelected(int position); } }