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package com.esri.arcgis.sample; /*www. j a v a 2s. c o m*/ import java.util.List; import android.app.Fragment; import android.content.Context; import android.content.res.Configuration; import android.os.Bundle; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.view.Gravity; 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.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import com.esri.core.tasks.na.RouteDirection; import com.esri.core.tasks.na.RouteManeuverType; public class DirectionsComponent extends Fragment { public static final String TAG = DirectionsComponent.class.getSimpleName(); public interface DirectionsCallback { void onDirectionSelected(RouteDirection direction); } private DirectionsCallback mCallback; private ActionBarDrawerToggle mDrawerToggle; private DrawerLayout mDrawerLayout; private ListView mDrawerListView; public DirectionsComponent() { } /** * Bind a callback to listen for directions selection events. * If null, will clear the current callback; * * @param callback The callback to bind. * @return this for chaining API calls. */ public DirectionsComponent bindCallback(DirectionsCallback callback) { mCallback = callback; return this; } /** * Set the directions to be displayed. * * @param directions A list of directions to be displayed. */ public void setDirections(List<RouteDirection> directions) { if (mDrawerListView != null) mDrawerListView.setAdapter(new DirectionsAdapter(mDrawerListView.getContext(), directions)); toggleDrawer(directions == null || directions.isEmpty()); } /** * Toggle the directions drawer. On lock, we change the action * bar and lock the DrawerLayout. * * @param lock If true, the directions slide out pane will no longer be accessible * through home button or touch events. */ private void toggleDrawer(boolean lock) { if (getActivity() != null) getActivity().getActionBar().setDisplayHomeAsUpEnabled(!lock); if (mDrawerToggle != null) mDrawerToggle.setDrawerIndicatorEnabled(!lock); if (mDrawerLayout != null) mDrawerLayout.setDrawerLockMode(lock ? DrawerLayout.LOCK_MODE_LOCKED_CLOSED : DrawerLayout.LOCK_MODE_UNLOCKED); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setHasOptionsMenu(true); } /** * Must be called before any calls to {@link #setDirections(List)}. This will capture necessary views * and should be called after the main view hierarchy is established. * * @return this for chaining API calls. */ public DirectionsComponent initialize() { // Find the drawer layout. mDrawerLayout = (DrawerLayout) getActivity().findViewById(R.id.drawer_layout); mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // Initialize the drawer toggle. mDrawerToggle = new ActionBarDrawerToggle(getActivity(), mDrawerLayout, R.drawable.ic_drawer, R.string.navigation_drawer_open, R.string.navigation_drawer_close) { @Override public void onDrawerClosed(View drawerView) { super.onDrawerClosed(drawerView); getActivity().invalidateOptionsMenu(); } @Override public void onDrawerOpened(View drawerView) { super.onDrawerOpened(drawerView); getActivity().invalidateOptionsMenu(); } }; // Sync the state of the drawer toggle. mDrawerLayout.post(new Runnable() { @Override public void run() { mDrawerToggle.syncState(); } }); // Set the drawer listener and lock the directions component. mDrawerLayout.setDrawerListener(mDrawerToggle); toggleDrawer(true); return this; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle 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) { if (mCallback != null) { RouteDirection direction = (RouteDirection) parent.getItemAtPosition(position); mCallback.onDirectionSelected(direction); } } }); return mDrawerListView; } /** * Returns true if the directions view pane is open. * * @return true if directions are visible. */ public boolean isDrawerOpen() { return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(Gravity.LEFT); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mDrawerToggle.onConfigurationChanged(newConfig); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { if (mDrawerLayout != null && isDrawerOpen()) { inflater.inflate(R.menu.global, menu); } super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } return super.onOptionsItemSelected(item); } /** * A simple adapter class to hold directions information. Each * item will have a main text, sub text, and image. */ private static class DirectionsAdapter extends BaseAdapter { private final Context mContext; private final List<RouteDirection> mDirections; public DirectionsAdapter(Context context, List<RouteDirection> directions) { mContext = context; mDirections = directions; } @Override public int getCount() { return mDirections.size(); } @Override public Object getItem(int position) { return mDirections.get(position); } @Override public long getItemId(int position) { return mDirections.get(position).hashCode(); } @Override public View getView(int position, View convertView, ViewGroup parent) { // Recycle the view. View view = convertView; if (view == null) { view = ((LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.directions_item, parent, false); } // Get the main and sub text. final RouteDirection routeDirection = mDirections.get(position); TextView mainText = (TextView) view.findViewById(R.id.directions_item_main_text); TextView subText = (TextView) view.findViewById(R.id.directions_item_sub_text); // Set the maneuver image. ImageView maneuverImage = (ImageView) view.findViewById(R.id.directions_item_thumbnail); maneuverImage.setImageResource(getResIdForManeuver(routeDirection.getManeuver())); mainText.setText(routeDirection.getText()); // Truncate the units if necessary. TruncationPair timeTruncate = truncateMinutes(routeDirection.getMinutes()); TruncationPair distTruncate = truncateMiles(routeDirection.getLength()); String timeString = timeTruncate.didTruncate ? "%.0f sec" : "%.1f min"; String distString = distTruncate.didTruncate ? "%.0f feet" : "%.1f mi"; subText.setText(String.format(distString + " " + timeString, distTruncate.value, timeTruncate.value)); return view; } /** * Simple class to hold the results of a unit truncation. * */ private static class TruncationPair { boolean didTruncate = false; double value = 0.0; } /** * Truncates a value in minutes. If the value is less than one minute, the * value is converted to seconds. * * @param minutes The minutes to test. * @return A truncation pair indicating if the value was truncated the value to display. */ private static TruncationPair truncateMinutes(double minutes) { TruncationPair result = new TruncationPair(); result.didTruncate = minutes <= 1.0; result.value = result.didTruncate ? minutes * 60.0 : minutes; return result; } /** * Truncates a value in miles. If the value is less than 1000 feet, the value * will be converted to feet. * * @param miles The miles value to test. * @return A truncation pair indicate if the miles were truncated to feet, and the value. */ private static TruncationPair truncateMiles(double miles) { TruncationPair result = new TruncationPair(); result.didTruncate = miles <= 0.18; result.value = result.didTruncate ? miles * 5280.0 : miles; return result; } } /** * Returns a resource Id for a particular directions maneuver type. * * @param maneuverType The direction maneuver type (turn left, go straight, etc). * @return The resource id. */ private static int getResIdForManeuver(RouteManeuverType maneuverType) { switch (maneuverType) { case BEAR_LEFT: return R.drawable.ic_routing_bear_left_dark; case BEAR_RIGHT: return R.drawable.ic_routing_bear_right_dark; case DEPART: return R.drawable.ic_action_add_dark; case DOOR_PASSAGE: return R.drawable.ic_routing_straight_arrow_dark; case ELEVATOR: return R.drawable.ic_routing_straight_arrow_dark; case END_OF_FERRY: return R.drawable.ic_routing_get_off_ferry_dark; case ESCALATOR: return R.drawable.ic_routing_straight_arrow_dark; case FERRY: return R.drawable.ic_routing_take_ferry_dark; case FORK_CENTER: return R.drawable.ic_routing_take_center_fork_dark; case FORK_LEFT: return R.drawable.ic_routing_take_fork_left_dark; case FORK_RIGHT: return R.drawable.ic_routing_take_fork_right_dark; case HIGHWAY_CHANGE: return R.drawable.ic_routing_highway_change_dark; case HIGHWAY_EXIT: return R.drawable.ic_routing_take_exit_dark; case HIGHWAY_MERGE: return R.drawable.ic_routing_merge_onto_highway_dark; case PEDESTRIAN_RAMP: return R.drawable.ic_routing_straight_arrow_dark; case RAMP_LEFT: return R.drawable.ic_routing_take_ramp_left_dark; case RAMP_RIGHT: return R.drawable.ic_routing_take_ramp_right_dark; case ROUNDABOUT: return R.drawable.ic_routing_get_on_roundabout_dark; case SHARP_LEFT: return R.drawable.ic_routing_turn_sharp_left_dark; case SHARP_RIGHT: return R.drawable.ic_routing_turn_sharp_right_dark; case STAIRS: return R.drawable.ic_routing_straight_arrow_dark; case STOP: return R.drawable.ic_action_add_dark; case STRAIGHT: return R.drawable.ic_routing_straight_arrow_dark; case TRIP_ITEM: return R.drawable.ic_action_add_dark; case TURN_LEFT: return R.drawable.ic_routing_turn_left_dark; case TURN_LEFT_LEFT: return R.drawable.ic_routing_left_left_dark; case TURN_LEFT_RIGHT: return R.drawable.ic_routing_left_right_dark; case TURN_RIGHT: return R.drawable.ic_routing_turn_right_dark; case TURN_RIGHT_LEFT: return R.drawable.ic_routing_right_left_dark; case TURN_RIGHT_RIGHT: return R.drawable.ic_routing_right_right_dark; case U_TURN: return R.drawable.ic_routing_u_turn_dark; case UNKNOWN: return R.drawable.ic_routing_straight_arrow_dark; default: return R.drawable.ic_routing_straight_arrow_dark; } } }