MP1_CalebFontenot

Book Files/33_Locations/Locatr/app/src/androidTest/java/com/bignerdranch/android/locatr/ExampleInstrumentedTest.java

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+package com.bignerdranch.android.locatr;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.bignerdranch.android.locatr", appContext.getPackageName());
+    }
+}

Book Files/33_Locations/Locatr/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.bignerdranch.android.locatr">
+
+    <uses-permission
+        android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission
+        android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission
+        android:name="android.permission.INTERNET" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".LocatrActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

Book Files/33_Locations/Locatr/app/src/main/java/com/bignerdranch/android/locatr/FlickrFetchr.java

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+package com.bignerdranch.android.locatr;
+
+import android.location.Location;
+import android.net.Uri;
+import android.util.Log;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+
+public class FlickrFetchr {
+    private static final String TAG = "FlickrFetchr";
+
+    private static final String API_KEY = "REPLACE_ME_WITH_A_REAL_KEY";
+    private static final String FETCH_RECENTS_METHOD = "flickr.photos.getRecent";
+    private static final String SEARCH_METHOD = "flickr.photos.search";
+    private static final Uri ENDPOINT = Uri
+            .parse("https://api.flickr.com/services/rest/")
+            .buildUpon()
+            .appendQueryParameter("api_key", API_KEY)
+            .appendQueryParameter("format", "json")
+            .appendQueryParameter("nojsoncallback", "1")
+            .appendQueryParameter("extras", "url_s")
+            .build();
+
+    public byte[] getUrlBytes(String urlSpec) throws IOException {
+        URL url = new URL(urlSpec);
+        HttpURLConnection connection = (HttpURLConnection)url.openConnection();
+        try {
+            ByteArrayOutputStream out = new ByteArrayOutputStream();
+            InputStream in = connection.getInputStream();
+            if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
+                throw new IOException(connection.getResponseMessage() +
+                        ": with " +
+                        urlSpec);
+            }
+            int bytesRead = 0;
+            byte[] buffer = new byte[1024];
+            while ((bytesRead = in.read(buffer)) > 0) {
+                out.write(buffer, 0, bytesRead);
+            }
+            out.close();
+            return out.toByteArray();
+        } finally {
+            connection.disconnect();
+        }
+    }
+
+    public String getUrlString(String urlSpec) throws IOException {
+        return new String(getUrlBytes(urlSpec));
+    }
+
+    public List<GalleryItem> fetchRecentPhotos() {
+        String url = buildUrl(FETCH_RECENTS_METHOD, null);
+        return downloadGalleryItems(url);
+    }
+
+    public List<GalleryItem> searchPhotos(String query) {
+        String url = buildUrl(SEARCH_METHOD, query);
+        return downloadGalleryItems(url);
+    }
+
+    public List<GalleryItem> searchPhotos(Location location) {
+        String url = buildUrl(location);
+        return downloadGalleryItems(url);
+    }
+
+    private List<GalleryItem> downloadGalleryItems(String url) {
+        List<GalleryItem> items = new ArrayList<>();
+
+        try {
+            String jsonString = getUrlString(url);
+            Log.i(TAG, "Received JSON: " + jsonString);
+            JSONObject jsonBody = new JSONObject(jsonString);
+            parseItems(items, jsonBody);
+        } catch (IOException ioe) {
+            Log.e(TAG, "Failed to fetch items", ioe);
+        } catch (JSONException je) {
+            Log.e(TAG, "Failed to parse JSON", je);
+        }
+
+        return items;
+    }
+
+    private String buildUrl(String method, String query) {
+        Uri.Builder uriBuilder = ENDPOINT.buildUpon()
+                .appendQueryParameter("method", method);
+
+        if (method.equals(SEARCH_METHOD)) {
+            uriBuilder.appendQueryParameter("text", query);
+        }
+
+        return uriBuilder.build().toString();
+    }
+
+    private String buildUrl(Location location) {
+        return ENDPOINT.buildUpon()
+                .appendQueryParameter("method", SEARCH_METHOD)
+                .appendQueryParameter("lat", "" + location.getLatitude())
+                .appendQueryParameter("lon", "" + location.getLongitude())
+                .build().toString();
+    }
+
+    private void parseItems(List<GalleryItem> items, JSONObject jsonBody)
+            throws IOException, JSONException {
+
+        JSONObject photosJsonObject = jsonBody.getJSONObject("photos");
+        JSONArray photoJsonArray = photosJsonObject.getJSONArray("photo");
+
+        for (int i = 0; i < photoJsonArray.length(); i++) {
+            JSONObject photoJsonObject = photoJsonArray.getJSONObject(i);
+
+            GalleryItem item = new GalleryItem();
+            item.setId(photoJsonObject.getString("id"));
+            item.setCaption(photoJsonObject.getString("title"));
+            
+            if (!photoJsonObject.has("url_s")) {
+                continue;
+            }
+            
+            item.setUrl(photoJsonObject.getString("url_s"));
+            item.setOwner(photoJsonObject.getString("owner"));
+            items.add(item);
+        }
+    }
+
+}

Book Files/33_Locations/Locatr/app/src/main/java/com/bignerdranch/android/locatr/GalleryItem.java

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+package com.bignerdranch.android.locatr;
+
+import android.net.Uri;
+
+public class GalleryItem {
+    private String mCaption;
+    private String mId;
+    private String mUrl;
+    private String mOwner;
+
+    public String getCaption() {
+        return mCaption;
+    }
+
+    public void setCaption(String caption) {
+        mCaption = caption;
+    }
+
+    public String getId() {
+        return mId;
+    }
+
+    public void setId(String id) {
+        mId = id;
+    }
+
+    public String getUrl() {
+        return mUrl;
+    }
+
+    public void setUrl(String url) {
+        mUrl = url;
+    }
+
+    public String getOwner() {
+        return mOwner;
+    }
+
+    public void setOwner(String owner) {
+        mOwner = owner;
+    }
+
+    public Uri getPhotoPageUri() {
+        return Uri.parse("http://www.flickr.com/photos/")
+                .buildUpon()
+                .appendPath(mOwner)
+                .appendPath(mId)
+                .build();
+    }
+
+    @Override
+    public String toString() {
+        return mCaption;
+    }
+}

Book Files/33_Locations/Locatr/app/src/main/java/com/bignerdranch/android/locatr/LocatrActivity.java

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+package com.bignerdranch.android.locatr;
+
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.support.v4.app.Fragment;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+import com.google.android.gms.common.ConnectionResult;
+import com.google.android.gms.common.GoogleApiAvailability;
+
+public class LocatrActivity extends SingleFragmentActivity {
+    private static final int REQUEST_ERROR = 0;
+
+    @Override
+    protected Fragment createFragment() {
+        return LocatrFragment.newInstance();
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
+        int errorCode = apiAvailability.isGooglePlayServicesAvailable(this);
+
+        if (errorCode != ConnectionResult.SUCCESS) {
+            Dialog errorDialog = apiAvailability.getErrorDialog(this,
+                    errorCode,
+                    REQUEST_ERROR,
+                    new DialogInterface.OnCancelListener() {
+                        @Override
+                        public void onCancel(DialogInterface dialogInterface) {
+                            // Leave if services are unavailable.
+                            finish();
+                        }
+                    });
+
+            errorDialog.show();
+        }
+    }
+}

Book Files/33_Locations/Locatr/app/src/main/java/com/bignerdranch/android/locatr/LocatrFragment.java

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+package com.bignerdranch.android.locatr;
+
+import android.Manifest;
+import android.content.pm.PackageManager;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.location.Location;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.support.v4.content.ContextCompat;
+import android.util.Log;
+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.ImageView;
+
+import com.google.android.gms.common.api.GoogleApiClient;
+import com.google.android.gms.location.LocationListener;
+import com.google.android.gms.location.LocationRequest;
+import com.google.android.gms.location.LocationServices;
+
+import java.io.IOException;
+import java.util.List;
+
+
+public class LocatrFragment extends Fragment {
+    private static final String TAG = "LocatrFragment";
+    private static final String[] LOCATION_PERMISSIONS = new String[]{
+            Manifest.permission.ACCESS_FINE_LOCATION,
+            Manifest.permission.ACCESS_COARSE_LOCATION,
+    };
+    private static final int REQUEST_LOCATION_PERMISSIONS = 0;
+
+    private ImageView mImageView;
+    private GoogleApiClient mClient;
+
+    public static LocatrFragment newInstance() {
+        return new LocatrFragment();
+    }
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+
+        mClient = new GoogleApiClient.Builder(getActivity()).addApi(LocationServices.API)
+                .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
+                    @Override
+                    public void onConnected(@Nullable Bundle bundle) {
+                        getActivity().invalidateOptionsMenu();
+                    }
+
+                    @Override
+                    public void onConnectionSuspended(int i) {
+
+                    }
+                })
+                .build();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View v = inflater.inflate(R.layout.fragment_locatr, container, false);
+
+        mImageView = (ImageView) v.findViewById(R.id.image);
+        return v;
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+
+        getActivity().invalidateOptionsMenu();
+        mClient.connect();
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+
+        mClient.disconnect();
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
+        inflater.inflate(R.menu.fragment_locatr, menu);
+
+        MenuItem searchItem = menu.findItem(R.id.action_locate);
+        searchItem.setEnabled(mClient.isConnected());
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.action_locate:
+                if (hasLocationPermission()) {
+                    findImage();
+                } else {
+                    requestPermissions(LOCATION_PERMISSIONS,
+                            REQUEST_LOCATION_PERMISSIONS);
+                }
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions,
+                                           int[] grantResults) {
+        switch (requestCode) {
+            case REQUEST_LOCATION_PERMISSIONS:
+                if (hasLocationPermission()) {
+                    findImage();
+                }
+            default:
+                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        }
+    }
+
+    private void findImage() {
+        LocationRequest request = LocationRequest.create();
+        request.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
+        request.setNumUpdates(1);
+        request.setInterval(0);
+        LocationServices.FusedLocationApi
+                .requestLocationUpdates(mClient, request, new LocationListener() {
+                    @Override
+                    public void onLocationChanged(Location location) {
+                        Log.i(TAG, "Got a fix: " + location);
+                        new SearchTask().execute(location);
+                    }
+                });
+    }
+
+    private boolean hasLocationPermission() {
+        int result = ContextCompat
+                .checkSelfPermission(getActivity(), LOCATION_PERMISSIONS[0]);
+        return result == PackageManager.PERMISSION_GRANTED;
+    }
+
+    private class SearchTask extends AsyncTask<Location,Void,Void> {
+        private GalleryItem mGalleryItem;
+        private Bitmap mBitmap;
+
+        @Override
+        protected Void doInBackground(Location... params) {
+            FlickrFetchr fetchr = new FlickrFetchr();
+            List<GalleryItem> items = fetchr.searchPhotos(params[0]);
+
+            if (items.size() == 0) {
+                return null;
+            }
+
+            mGalleryItem = items.get(0);
+
+            try {
+                byte[] bytes = fetchr.getUrlBytes(mGalleryItem.getUrl());
+                mBitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
+            } catch (IOException ioe) {
+                Log.i(TAG, "Unable to decode bitmap", ioe);
+            }
+            return null;
+        }
+
+        @Override
+        protected void onPostExecute(Void result) {
+            mImageView.setImageBitmap(mBitmap);
+        }
+    }
+}

Book Files/33_Locations/Locatr/app/src/main/java/com/bignerdranch/android/locatr/SingleFragmentActivity.java

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+package com.bignerdranch.android.locatr;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v7.app.AppCompatActivity;
+
+public abstract class SingleFragmentActivity extends AppCompatActivity {
+
+    protected abstract Fragment createFragment();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_fragment);
+
+        FragmentManager fm = getSupportFragmentManager();
+        Fragment fragment = fm.findFragmentById(R.id.fragment_container);
+
+        if (fragment == null) {
+            fragment = createFragment();
+            fm.beginTransaction()
+                    .add(R.id.fragment_container, fragment)
+                    .commit();
+        }
+    }
+
+}

Book Files/33_Locations/Locatr/app/src/main/res/layout/activity_fragment.xml

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+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/fragment_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"/>

Book Files/33_Locations/Locatr/app/src/main/res/layout/fragment_locatr.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/activity_locatr"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context="com.bignerdranch.android.locatr.LocatrActivity">
+
+    <ImageView
+        android:id="@+id/image"
+        android:layout_width="150dp"
+        android:layout_height="150dp"
+        android:background="@android:color/white"
+        android:layout_centerInParent="true"
+        />
+</RelativeLayout>

Book Files/33_Locations/Locatr/app/src/main/res/menu/fragment_locatr.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item android:id="@+id/action_locate"
+          android:icon="@android:drawable/ic_menu_compass"
+          android:title="@string/search"
+          android:enabled="false"
+          app:showAsAction="ifRoom"/>
+</menu>

Book Files/33_Locations/Locatr/app/src/main/res/values-w820dp/dimens.xml

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+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>

Book Files/33_Locations/Locatr/app/src/main/res/values/colors.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

Book Files/33_Locations/Locatr/app/src/main/res/values/dimens.xml

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+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

Book Files/33_Locations/Locatr/app/src/main/res/values/strings.xml

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+<resources>
+    <string name="app_name">Locatr</string>
+
+    <string name="search">Find an image near you</string>
+</resources>

Book Files/33_Locations/Locatr/app/src/main/res/values/styles.xml

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+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

Book Files/33_Locations/Locatr/app/src/test/java/com/bignerdranch/android/locatr/ExampleUnitTest.java

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+package com.bignerdranch.android.locatr;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}