package com.dougkeen.bart; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.support.v4.app.FragmentActivity; import android.widget.ArrayAdapter; import android.widget.Spinner; import android.widget.Toast; import com.WazaBe.HoloEverywhere.AlertDialog; import com.dougkeen.bart.model.Station; public abstract class AbstractRouteSelectionFragment extends DialogFragment { private static final String KEY_LAST_SELECTED_DESTINATION = "lastSelectedDestination"; private static final String KEY_LAST_SELECTED_ORIGIN = "lastSelectedOrigin"; protected String mTitle; public AbstractRouteSelectionFragment(String title) { super(); mTitle = title; } @Override public void onStart() { super.onStart(); SharedPreferences preferences = getActivity().getPreferences( Context.MODE_PRIVATE); final int lastSelectedOriginPosition = preferences.getInt( KEY_LAST_SELECTED_ORIGIN, 0); final int lastSelectedDestinationPosition = preferences.getInt( KEY_LAST_SELECTED_DESTINATION, 1); final Dialog dialog = getDialog(); final FragmentActivity activity = getActivity(); ArrayAdapter originSpinnerAdapter = new ArrayAdapter( activity, android.R.layout.simple_spinner_item, Station.getStationList()); originSpinnerAdapter .setDropDownViewResource(R.layout.simple_spinner_dropdown_item); final Spinner originSpinner = (Spinner) dialog .findViewById(R.id.origin_spinner); originSpinner.setAdapter(originSpinnerAdapter); originSpinner.setSelection(lastSelectedOriginPosition); ArrayAdapter destinationSpinnerAdapter = new ArrayAdapter( activity, android.R.layout.simple_spinner_item, Station.getStationList()); destinationSpinnerAdapter .setDropDownViewResource(R.layout.simple_spinner_dropdown_item); final Spinner destinationSpinner = (Spinner) dialog .findViewById(R.id.destination_spinner); destinationSpinner.setAdapter(destinationSpinnerAdapter); destinationSpinner.setSelection(lastSelectedDestinationPosition); } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { final FragmentActivity activity = getActivity(); return new AlertDialog.Builder(activity) .setTitle(mTitle) .setCancelable(true) .setView(R.layout.route_form) .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { handleOkClick(); } }) .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { dialog.cancel(); } }).create(); } protected void handleOkClick() { final Dialog dialog = getDialog(); final Spinner originSpinner = (Spinner) dialog .findViewById(R.id.origin_spinner); final Spinner destinationSpinner = (Spinner) dialog .findViewById(R.id.destination_spinner); Station origin = (Station) originSpinner.getSelectedItem(); Station destination = (Station) destinationSpinner.getSelectedItem(); if (origin == null) { Toast.makeText(dialog.getContext(), com.dougkeen.bart.R.string.error_null_origin, Toast.LENGTH_LONG).show(); return; } if (destination == null) { Toast.makeText(dialog.getContext(), com.dougkeen.bart.R.string.error_null_destination, Toast.LENGTH_LONG).show(); return; } if (origin.equals(destination)) { Toast.makeText( dialog.getContext(), com.dougkeen.bart.R.string.error_matching_origin_and_destination, Toast.LENGTH_LONG).show(); return; } final Editor prefsEditor = getActivity().getPreferences( Context.MODE_PRIVATE).edit(); prefsEditor.putInt(KEY_LAST_SELECTED_ORIGIN, originSpinner.getSelectedItemPosition()); prefsEditor.putInt(KEY_LAST_SELECTED_DESTINATION, destinationSpinner.getSelectedItemPosition()); prefsEditor.commit(); onOkButtonClick(origin, destination); } abstract protected void onOkButtonClick(Station origin, Station destination); }