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package com.esri.arcgis.sample; // w ww . j a v a 2 s.co m import java.util.Arrays; import java.util.HashSet; import java.util.List; import android.graphics.Color; import android.os.Bundle; import android.preference.CheckBoxPreference; import android.preference.ListPreference; import android.preference.MultiSelectListPreference; import android.preference.PreferenceFragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import com.esri.core.tasks.na.CostAttribute; import com.esri.core.tasks.na.NetworkDescription; import com.esri.core.tasks.na.RestrictionAttribute; import com.esri.core.tasks.na.RouteParameters; public class SettingsComponent extends PreferenceFragment { public static final String TIME_SLIDER_PREF_KEY = "pref_enable_slider"; public static final String IMPEDANCE_PREF_KEY = "pref_impedance"; public static final String RESTRICTIONS_PREF_KEY = "pref_restrictions"; public static final String DIRECTIONS_LANGUAGE_PREF_KEY = "pref_directions_language"; public static final String DIRECTIONS_PREF_KEY = "pref_directions"; public static final String TSP_PREF_KEY = "pref_tsp"; public static final String TSP_FIRST_PREF_KEY = "pref_tsp_first"; public static final String TSP_LAST_PREF_KEY = "pref_tsp_last"; private static final String ND_RESTRICTIONS_KEY = "nd_restrictions"; private static final String RP_RESTRICTIONS_KEY = "rp_restrictions"; private static final String ND_COST_ATTRIBUTES_KEY = "nd_cost_attributes"; private static final String RP_IMEDANCE_KEY = "rp_impedance"; private static final String RP_TSP_KEY = "rp_tsp"; private static final String RP_TSP_FIRST_KEY = "rp_tsp_first"; private static final String RP_TSP_LAST_KEY = "rp_tsp_last"; private static final String ND_DIRECTIONS_LANGUAGES_KEY = "nd_directions_languges"; private static final String RP_DIRECTIONS_LANGUAGE_KEY = "rp_direcitons_language"; private static final String RP_DIRECTIONS_KEY = "rp_directions"; /** * Default constructor. */ public SettingsComponent() { } /** * Create a new settings fragment with a bundle. The bundle should be * created using {@link SettingsComponent#createBundle(NetworkDescription, RouteParameters)}. * * @param args The bundle containing default and current settings information. * @return A settings Fragment. */ public static SettingsComponent newInstance(Bundle args) { SettingsComponent fragment = new SettingsComponent(); fragment.setArguments(args); return fragment; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = super.onCreateView(inflater, container, savedInstanceState); view.setBackgroundColor(Color.WHITE); return view; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.preferences); adjustSettings(getArguments()); } /** * Given a network description and route parameters, create an appropriate bundle * for all relevant settings. * * @param description A network description, can be null. * @param routeParams A route parameters object, can be null. * @return */ public static Bundle createBundle(NetworkDescription description, RouteParameters routeParams) { Bundle args = new Bundle(); // Assign all route parameters relative values. if (routeParams != null) { args.putString(RP_IMEDANCE_KEY, routeParams.getImpedanceAttributeName()); args.putStringArray(RP_RESTRICTIONS_KEY, routeParams.getRestrictionAttributeNames()); args.putBoolean(RP_TSP_KEY, routeParams.getFindBestSequence()); args.putBoolean(RP_TSP_FIRST_KEY, routeParams.getPreserveFirstStop()); args.putBoolean(RP_TSP_LAST_KEY, routeParams.getPreserveLastStop()); args.putString(RP_DIRECTIONS_LANGUAGE_KEY, routeParams.getDirectionsLanguage()); args.putBoolean(RP_DIRECTIONS_KEY, routeParams.isReturnDirections()); } // Assign available restrictions, cost attributes, and directions languages. if (description != null) { List<RestrictionAttribute> restrictions = description.getRestrictionAttributes(); List<CostAttribute> costs = description.getCostAttributes(); String[] restrictionNames = new String[restrictions.size()]; String[] costNames = new String[costs.size()]; for (int i = 0; i < restrictions.size(); i++) restrictionNames[i] = restrictions.get(i).getName(); for (int i = 0; i < costs.size(); i++) costNames[i] = costs.get(i).getName(); args.putStringArray(ND_RESTRICTIONS_KEY, restrictionNames); args.putStringArray(ND_COST_ATTRIBUTES_KEY, costNames); List<String> languages = description.getSupportedDirectionsLanguages(); args.putStringArray(ND_DIRECTIONS_LANGUAGES_KEY, languages.toArray(new String[languages.size()])); } return args; } /** * As most of our settings are dynamic based on the network description and the * current routing parameters, we adjust the preference after they are inflated from * the layout. * * @param bundle A bundle with current parameters, can be null. */ private void adjustSettings(Bundle bundle) { if (bundle == null) return; // Impedance preference ListPreference impedancePref = (ListPreference) findPreference(IMPEDANCE_PREF_KEY); String[] costAttributes = bundle.getStringArray(ND_COST_ATTRIBUTES_KEY); String impedance = bundle.getString(RP_IMEDANCE_KEY); if (impedance == null || costAttributes == null) impedancePref.setEnabled(false); else { impedancePref.setEntries(costAttributes); impedancePref.setEntryValues(costAttributes); impedancePref.setValue(impedance); } // Directions enabled preference CheckBoxPreference dirPref = (CheckBoxPreference) findPreference(DIRECTIONS_PREF_KEY); dirPref.setEnabled(bundle.containsKey(RP_DIRECTIONS_KEY)); dirPref.setChecked(bundle.getBoolean(RP_DIRECTIONS_KEY, false)); // Directions language preference ListPreference dirLanguagePref = (ListPreference) findPreference(DIRECTIONS_LANGUAGE_PREF_KEY); String[] supportedLanguages = bundle.getStringArray(ND_DIRECTIONS_LANGUAGES_KEY); String currentLanguage = bundle.getString(RP_DIRECTIONS_LANGUAGE_KEY); if (supportedLanguages == null || currentLanguage == null) dirLanguagePref.setEnabled(false); else { dirLanguagePref.setEntries(supportedLanguages); dirLanguagePref.setEntryValues(supportedLanguages); dirLanguagePref.setValue(currentLanguage); } // Restrictions preferences MultiSelectListPreference restrictionsPref = (MultiSelectListPreference) findPreference(RESTRICTIONS_PREF_KEY); String[] potentialRestrictions = bundle.getStringArray(ND_RESTRICTIONS_KEY); String[] activeRestrictions = bundle.getStringArray(RP_RESTRICTIONS_KEY); if (potentialRestrictions == null || activeRestrictions == null) restrictionsPref.setEnabled(false); else { restrictionsPref.setEntries(potentialRestrictions); restrictionsPref.setEntryValues(potentialRestrictions); restrictionsPref.setValues(new HashSet<String>(Arrays.asList(activeRestrictions))); } // Optimization CheckBoxPreference tspPref = (CheckBoxPreference) findPreference(TSP_PREF_KEY); tspPref.setEnabled(bundle.containsKey(RP_TSP_KEY)); tspPref.setChecked(bundle.getBoolean(RP_TSP_KEY, false)); // Preserve first stop tspPref = (CheckBoxPreference) findPreference(TSP_FIRST_PREF_KEY); tspPref.setEnabled(bundle.containsKey(RP_TSP_FIRST_KEY)); tspPref.setChecked(bundle.getBoolean(RP_TSP_FIRST_KEY, true)); // Preserve last stop tspPref = (CheckBoxPreference) findPreference(TSP_LAST_PREF_KEY); tspPref.setEnabled(bundle.containsKey(RP_TSP_LAST_KEY)); tspPref.setChecked(bundle.getBoolean(RP_TSP_LAST_KEY, true)); } }