Android Open Source - maps-app-android Routing Dialog Fragment

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Apache License - 2.0 TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by...

Java Source Code

/* Copyright 1995-2014 Esri
 *// w ww  .  ja  v  a 2s .  co  m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * For additional information, contact:
 * Environmental Systems Research Institute, Inc.
 * Attn: Contracts Dept
 * 380 New York Street
 * Redlands, California, USA 92373
 *
 * email: contracts@esri.com
 *
 */

package com.esri.android.mapsapp.location;

import android.app.DialogFragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.SearchView;
import android.widget.SearchView.OnQueryTextListener;

import com.esri.android.mapsapp.R;

public class RoutingDialogFragment extends DialogFragment {
  public static final String ARG_END_POINT_DEFAULT = "EndPointDefault";

  public static final String MY_LOCATION = "My Location";

  private static final String SEARCH_FROM = "From";

  private static final String SEARCH_TO = "To";

  private String mEndPointDefault;

  private SearchView mStartText;

  private SearchView mEndText;

  private RoutingDialogListener mRoutingDialogListener;

  private ImageView mSwap;

  private Button mButton;

  /**
   * A callback interface that all activities containing this fragment must
   * implement, to receive a routing request from this fragment.
   */
  public interface RoutingDialogListener {
    /**
     * Callback for when the Get Route button is pressed.
     * 
     * @param startPoint
     *            String entered by user to define start point.
     * @param endPoint
     *            String entered by user to define end point.
     * @return true if routing task executed, false if parameters rejected.
     *         If this method rejects the parameters it must display an
     *         explanatory Toast to the user before returning.
     */
    public boolean onGetRoute(String startPoint, String endPoint);
  }

  // Mandatory empty constructor for fragment manager to recreate fragment
  // after it's destroyed.
  public RoutingDialogFragment() {
  }

  /**
   * Sets listener for click on Get Route button.
   * 
   * @param listener
   */
  public void setRoutingDialogListener(RoutingDialogListener listener) {
    mRoutingDialogListener = listener;
  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setStyle(DialogFragment.STYLE_NORMAL, 0);

    if (getArguments().containsKey(ARG_END_POINT_DEFAULT)) {
      mEndPointDefault = getArguments().getString(ARG_END_POINT_DEFAULT);
    } else {
      mEndPointDefault = null;
    }
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.routing_layout, container, false);
    getDialog().setTitle(R.string.title_routing_dialog);
    // Initialize searchviews
    mStartText = (SearchView) view.findViewById(R.id.startPoint);
    mEndText = (SearchView) view.findViewById(R.id.endPoint);

    mStartText.setIconifiedByDefault(false);
    mEndText.setIconifiedByDefault(false);

    // Set hint for searchviews
    mStartText.setQueryHint(SEARCH_FROM);
    mEndText.setQueryHint(SEARCH_TO);

    // Change default search icons for the search view
    int startIconId = mStartText.getContext().getResources()
        .getIdentifier("android:id/search_mag_icon", null, null);
    ImageView start_icon = (ImageView) mStartText.findViewById(startIconId);
    start_icon.setImageResource(R.drawable.pin_circle_red);

    int endIconId = mEndText.getContext().getResources()
        .getIdentifier("android:id/search_mag_icon", null, null);
    ImageView end_icon = (ImageView) mEndText.findViewById(endIconId);
    end_icon.setImageResource(R.drawable.pin_circle_blue);

    mStartText.setQuery(MY_LOCATION, false);
    mStartText.clearFocus();
    mEndText.requestFocus();
    if (mEndPointDefault != null) {
      mEndText.setQuery(mEndPointDefault, false);
    }
    mSwap = (ImageView) view.findViewById(R.id.iv_interchange);

    mButton = (Button) view.findViewById(R.id.getRouteButton);
    //Set up onClick listener for the "Get Route" button
    mButton.setOnClickListener(new View.OnClickListener() {

      @Override
      public void onClick(View v) {
        String startPoint = mStartText.getQuery().toString();
        String endPoint = mEndText.getQuery().toString();
        if (mRoutingDialogListener.onGetRoute(startPoint, endPoint)) {
          dismiss();
        }
      }

    });

    //Interchange the text in the searchviews
    mSwap.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        // Swap the places
        String temp = mStartText.getQuery().toString();
        mStartText.setQuery(mEndText.getQuery().toString(), false);
        mEndText.setQuery(temp, false);

      }
    });

    //Setup listener when the search button is clicked n the keyboard for the searchviews
    mEndText.setOnQueryTextListener(new OnQueryTextListener() {

      @Override
      public boolean onQueryTextSubmit(String query) {
        String startPoint = mStartText.getQuery().toString();
        String endPoint = mEndText.getQuery().toString();
        if (startPoint.length() > 0) {
          if (mRoutingDialogListener.onGetRoute(startPoint, endPoint)) {
            dismiss();
          }
        }
        else{
          //"From" text is null
          mEndText.clearFocus();
          mStartText.requestFocus();
        }
        return true;
      }

      @Override
      public boolean onQueryTextChange(String newText) {
        return false;
      }
    });
    
    mStartText.setOnQueryTextListener(new OnQueryTextListener() {

      @Override
      public boolean onQueryTextSubmit(String query) {
        String startPoint = mStartText.getQuery().toString();
        String endPoint = mEndText.getQuery().toString();
        if (endPoint.length() > 0) {
          if (mRoutingDialogListener.onGetRoute(startPoint, endPoint)) {
            dismiss();
          }
        }
        else{
          //"To" text is null
          mStartText.clearFocus();
          mEndText.requestFocus();
        }
        return true;
      }

      @Override
      public boolean onQueryTextChange(String newText) {
        return false;
      }
    });

    return view;
  }

}

Java Source Code List

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