MP1_CalebFontenot

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/androidTest/java/com/bignerdranch/android/photogallery/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.bignerdranch.android.photogallery;
+
+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.photogallery", appContext.getPackageName());
+    }
+}

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/AndroidManifest.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.bignerdranch.android.photogallery">
+    <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=".PhotoGalleryActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/java/com/bignerdranch/android/photogallery/FlickrFetchr.java

@@ -0,0 +1,98 @@
+package com.bignerdranch.android.photogallery;
+
+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";
+
+    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> fetchItems() {
+
+        List<GalleryItem> items = new ArrayList<>();
+
+        try {
+            String url = Uri.parse("https://api.flickr.com/services/rest/")
+                    .buildUpon()
+                    .appendQueryParameter("method", "flickr.photos.getRecent")
+                    .appendQueryParameter("api_key", API_KEY)
+                    .appendQueryParameter("format", "json")
+                    .appendQueryParameter("nojsoncallback", "1")
+                    .appendQueryParameter("extras", "url_s")
+                    .build().toString();
+            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 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"));
+            items.add(item);
+        }
+    }
+
+}

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/java/com/bignerdranch/android/photogallery/GalleryItem.java

@@ -0,0 +1,36 @@
+package com.bignerdranch.android.photogallery;
+
+public class GalleryItem {
+    private String mCaption;
+    private String mId;
+    private String mUrl;
+
+    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;
+    }
+
+    @Override
+    public String toString() {
+        return mCaption;
+    }
+}

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/java/com/bignerdranch/android/photogallery/PhotoGalleryActivity.java

@@ -0,0 +1,11 @@
+package com.bignerdranch.android.photogallery;
+
+import android.support.v4.app.Fragment;
+
+public class PhotoGalleryActivity extends SingleFragmentActivity {
+
+    @Override
+    protected Fragment createFragment() {
+        return PhotoGalleryFragment.newInstance();
+    }
+}

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/java/com/bignerdranch/android/photogallery/PhotoGalleryFragment.java

@@ -0,0 +1,106 @@
+package com.bignerdranch.android.photogallery;
+
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+public class PhotoGalleryFragment extends Fragment {
+
+    private static final String TAG = "PhotoGalleryFragment";
+
+    private RecyclerView mPhotoRecyclerView;
+    private List<GalleryItem> mItems = new ArrayList<>();
+
+    public static PhotoGalleryFragment newInstance() {
+        return new PhotoGalleryFragment();
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setRetainInstance(true);
+        new FetchItemsTask().execute();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View v = inflater.inflate(R.layout.fragment_photo_gallery, container, false);
+
+        mPhotoRecyclerView = (RecyclerView) v.findViewById(R.id.photo_recycler_view);
+        mPhotoRecyclerView.setLayoutManager(new GridLayoutManager(getActivity(), 3));
+
+        setupAdapter();
+
+        return v;
+    }
+
+    private void setupAdapter() {
+        if (isAdded()) {
+            mPhotoRecyclerView.setAdapter(new PhotoAdapter(mItems));
+        }
+    }
+
+    private class PhotoHolder extends RecyclerView.ViewHolder {
+        private TextView mTitleTextView;
+
+        public PhotoHolder(View itemView) {
+            super(itemView);
+
+            mTitleTextView = (TextView) itemView;
+        }
+
+        public void bindGalleryItem(GalleryItem item) {
+            mTitleTextView.setText(item.toString());
+        }
+    }
+
+    private class PhotoAdapter extends RecyclerView.Adapter<PhotoHolder> {
+
+        private List<GalleryItem> mGalleryItems;
+
+        public PhotoAdapter(List<GalleryItem> galleryItems) {
+            mGalleryItems = galleryItems;
+        }
+
+        @Override
+        public PhotoHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
+            TextView textView = new TextView(getActivity());
+            return new PhotoHolder(textView);
+        }
+
+        @Override
+        public void onBindViewHolder(PhotoHolder photoHolder, int position) {
+            GalleryItem galleryItem = mGalleryItems.get(position);
+            photoHolder.bindGalleryItem(galleryItem);
+        }
+
+        @Override
+        public int getItemCount() {
+            return mGalleryItems.size();
+        }
+    }
+
+    private class FetchItemsTask extends AsyncTask<Void,Void,List<GalleryItem>> {
+        @Override
+        protected List<GalleryItem> doInBackground(Void... params) {
+            return new FlickrFetchr().fetchItems();
+        }
+
+        @Override
+        protected void onPostExecute(List<GalleryItem> items) {
+            mItems = items;
+            setupAdapter();
+        }
+    }
+}

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/java/com/bignerdranch/android/photogallery/SingleFragmentActivity.java

@@ -0,0 +1,33 @@
+package com.bignerdranch.android.photogallery;
+
+import android.os.Bundle;
+import android.support.annotation.LayoutRes;
+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();
+
+    @LayoutRes
+    protected int getLayoutResId() {
+        return R.layout.activity_fragment;
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(getLayoutResId());
+
+        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/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/res/layout/activity_fragment.xml

@@ -0,0 +1,4 @@
+<FrameLayout android:id="@+id/fragment_container"
+             xmlns:android="http://schemas.android.com/apk/res/android"
+             android:layout_width="match_parent"
+             android:layout_height="match_parent" />

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/res/layout/fragment_photo_gallery.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v7.widget.RecyclerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/photo_recycler_view"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="com.bignerdranch.android.photogallery.PhotoGalleryActivity"/>

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/res/values-w820dp/dimens.xml

@@ -0,0 +1,6 @@
+<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/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?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/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/res/values/dimens.xml

@@ -0,0 +1,5 @@
+<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/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">PhotoGallery</string>
+</resources>

Book Files/25_HTTPBackgroundTasks/PhotoGallery/app/src/main/res/values/styles.xml

@@ -0,0 +1,11 @@
+<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/25_HTTPBackgroundTasks/PhotoGallery/app/src/test/java/com/bignerdranch/android/photogallery/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.bignerdranch.android.photogallery;
+
+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);
+    }
+}