Home | History | Annotate | Download | only in ui 
      1 /*
      2  * Copyright 2015 Google Inc. All rights reserved.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.xyztouristattractions.ui;
     18 
     19 import android.app.TaskStackBuilder;
     20 import android.content.Intent;
     21 import android.net.Uri;
     22 import android.os.Build;
     23 import android.os.Bundle;
     24 import android.support.design.widget.FloatingActionButton;
     25 import android.support.v4.app.Fragment;
     26 import android.support.v4.app.NavUtils;
     27 import android.text.TextUtils;
     28 import android.view.LayoutInflater;
     29 import android.view.MenuItem;
     30 import android.view.View;
     31 import android.view.ViewGroup;
     32 import android.widget.ImageView;
     33 import android.widget.TextView;
     34 
     35 import com.bumptech.glide.Glide;
     36 import com.bumptech.glide.load.engine.DiskCacheStrategy;
     37 import com.example.android.xyztouristattractions.R;
     38 import com.example.android.xyztouristattractions.common.Attraction;
     39 import com.example.android.xyztouristattractions.common.Constants;
     40 import com.example.android.xyztouristattractions.common.Utils;
     41 import com.google.android.gms.maps.model.LatLng;
     42 
     43 import java.util.List;
     44 import java.util.Map;
     45 
     46 import static com.example.android.xyztouristattractions.provider.TouristAttractions.ATTRACTIONS;
     47 
     48 /**
     49  * The tourist attraction detail fragment which contains the details of a
     50  * a single attraction (contained inside
     51  * {@link com.example.android.xyztouristattractions.ui.DetailActivity}).
     52  */
     53 public class DetailFragment extends Fragment {
     54 
     55     private static final String EXTRA_ATTRACTION = "attraction";
     56     private Attraction mAttraction;
     57 
     58     public static DetailFragment createInstance(String attractionName) {
     59         DetailFragment detailFragment = new DetailFragment();
     60         Bundle bundle = new Bundle();
     61         bundle.putString(EXTRA_ATTRACTION, attractionName);
     62         detailFragment.setArguments(bundle);
     63         return detailFragment;
     64     }
     65 
     66     public DetailFragment() {}
     67 
     68     @Override
     69     public View onCreateView(LayoutInflater inflater, ViewGroup container,
     70                              Bundle savedInstanceState) {
     71         setHasOptionsMenu(true);
     72         View view = inflater.inflate(R.layout.fragment_detail, container, false);
     73         String attractionName = getArguments().getString(EXTRA_ATTRACTION);
     74         mAttraction = findAttraction(attractionName);
     75 
     76         if (mAttraction == null) {
     77             getActivity().finish();
     78             return null;
     79         }
     80 
     81         TextView nameTextView = (TextView) view.findViewById(R.id.nameTextView);
     82         TextView descTextView = (TextView) view.findViewById(R.id.descriptionTextView);
     83         TextView distanceTextView = (TextView) view.findViewById(R.id.distanceTextView);
     84         ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
     85         FloatingActionButton mapFab = (FloatingActionButton) view.findViewById(R.id.mapFab);
     86 
     87         LatLng location = Utils.getLocation(getActivity());
     88         String distance = Utils.formatDistanceBetween(location, mAttraction.location);
     89         if (TextUtils.isEmpty(distance)) {
     90             distanceTextView.setVisibility(View.GONE);
     91         }
     92 
     93         nameTextView.setText(attractionName);
     94         distanceTextView.setText(distance);
     95         descTextView.setText(mAttraction.longDescription);
     96 
     97         int imageSize = getResources().getDimensionPixelSize(R.dimen.image_size)
     98                 * Constants.IMAGE_ANIM_MULTIPLIER;
     99         Glide.with(getActivity())
    100                 .load(mAttraction.imageUrl)
    101                 .diskCacheStrategy(DiskCacheStrategy.SOURCE)
    102                 .placeholder(R.color.lighter_gray)
    103                 .override(imageSize, imageSize)
    104                 .into(imageView);
    105 
    106         mapFab.setOnClickListener(new View.OnClickListener() {
    107             @Override
    108             public void onClick(View v) {
    109                 Intent intent = new Intent(Intent.ACTION_VIEW);
    110                 intent.setData(Uri.parse(Constants.MAPS_INTENT_URI +
    111                         Uri.encode(mAttraction.name + ", " + mAttraction.city)));
    112                 startActivity(intent);
    113             }
    114         });
    115 
    116         return view;
    117     }
    118 
    119     @Override
    120     public boolean onOptionsItemSelected(MenuItem item) {
    121         switch (item.getItemId()) {
    122             case android.R.id.home:
    123                 // Some small additions to handle "up" navigation correctly
    124                 Intent upIntent = NavUtils.getParentActivityIntent(getActivity());
    125                 upIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
    126 
    127                 // Check if up activity needs to be created (usually when
    128                 // detail screen is opened from a notification or from the
    129                 // Wearable app
    130                 if (NavUtils.shouldUpRecreateTask(getActivity(), upIntent)
    131                         || getActivity().isTaskRoot()) {
    132 
    133                     // Synthesize parent stack
    134                     TaskStackBuilder.create(getActivity())
    135                             .addNextIntentWithParentStack(upIntent)
    136                             .startActivities();
    137                 }
    138 
    139                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    140                     // On Lollipop+ we finish so to run the nice animation
    141                     getActivity().finishAfterTransition();
    142                     return true;
    143                 }
    144 
    145                 // Otherwise let the system handle navigating "up"
    146                 return false;
    147         }
    148         return super.onOptionsItemSelected(item);
    149     }
    150 
    151     /**
    152      * Really hacky loop for finding attraction in our static content provider.
    153      * Obviously would not be used in a production app.
    154      */
    155     private Attraction findAttraction(String attractionName) {
    156         for (Map.Entry<String, List<Attraction>> attractionsList : ATTRACTIONS.entrySet()) {
    157             List<Attraction> attractions = attractionsList.getValue();
    158             for (Attraction attraction : attractions) {
    159                 if (attractionName.equals(attraction.name)) {
    160                     return attraction;
    161                 }
    162             }
    163         }
    164         return null;
    165     }
    166 }
    167