Initial commit

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion "24.0.3"
+    defaultConfig {
+        applicationId "com.example.h_mal.bookappudacity"
+        minSdkVersion 15
+        targetSdkVersion 25
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:25.1.0'
+    testCompile 'junit:junit:4.12'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in C:\Users\h_mal\AppData\Local\Android\Sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

app/src/androidTest/java/com/example/h_mal/bookappudacity/ExampleInstrumentedTest.java

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+package com.example.h_mal.bookappudacity;
+
+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.example.h_mal.bookappudacity", appContext.getPackageName());
+    }
+}

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.example.h_mal.bookappudacity">
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <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=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/example/h_mal/bookappudacity/Books.java

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+package com.example.h_mal.bookappudacity;
+
+/**
+ * Created by h_mal on 08/03/2017.
+ */
+
+public class Books {
+
+    private String mTitle;
+
+    private String mAuthor;
+
+    private String mURLaddress;
+
+    public Books (String title, String author, String URLaddress){
+
+        mTitle = title;
+        mAuthor = author;
+        mURLaddress = URLaddress;
+    }
+
+    public String getTitle() { return mTitle;}
+
+    public String getAuthor() {return mAuthor;}
+
+    public String getURLaddress() {return mURLaddress;}
+}

app/src/main/java/com/example/h_mal/bookappudacity/BooksAdapter.java

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+package com.example.h_mal.bookappudacity;
+
+import android.app.Activity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+
+/**
+ * Created by h_mal on 08/03/2017.
+ */
+
+public class BooksAdapter extends ArrayAdapter<Books>{
+
+    public static final String LOG_TAG = MainActivity.class.getName();
+
+    private static final String LOCATION_SEPARATOR = ",";
+
+    public BooksAdapter(Activity context, ArrayList<Books> books){
+    super(context, 0, books);
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        View listItemView = convertView;
+        if (listItemView == null) {
+            listItemView = LayoutInflater.from(getContext()).inflate(
+                    R.layout.list_item, parent, false);
+        }
+        Books currentBook = getItem(position);
+
+        TextView titleTextView = (TextView) listItemView.findViewById(R.id.title);
+        titleTextView.setText(currentBook.getTitle());
+
+        String authors = currentBook.getAuthor();
+        authors = authors.replace("[","");
+        authors = authors.replace("]","");
+
+        String primaryAuthor;
+        String secondaryAuthor;
+
+        if (authors.contains(LOCATION_SEPARATOR)) {
+            String[] parts = authors.split(LOCATION_SEPARATOR);
+            primaryAuthor = parts[0] + "";
+            secondaryAuthor = parts[1];
+        } else {
+            secondaryAuthor = null;
+            primaryAuthor = authors;
+        }
+
+        TextView primaryAuthorTextView = (TextView) listItemView.findViewById(R.id.author);
+        primaryAuthorTextView.setText(primaryAuthor);
+
+        TextView secondaryAuthorTextView = (TextView) listItemView.findViewById(R.id.author_secondary);
+        secondaryAuthorTextView.setText(secondaryAuthor);
+
+        return listItemView;
+    }
+}

app/src/main/java/com/example/h_mal/bookappudacity/BooksLoader.java

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+package com.example.h_mal.bookappudacity;
+
+import android.content.AsyncTaskLoader;
+import android.content.Context;
+
+import java.util.List;
+
+/**
+ * Created by h_mal on 10/03/2017.
+ */
+
+public class BooksLoader extends AsyncTaskLoader<List<Books>> {
+
+    public String mURL;
+
+    public BooksLoader(Context context, String url) {
+        super(context);
+        mURL = url;
+    }
+
+    @Override
+    protected void onStartLoading() {
+        forceLoad();
+    }
+
+    @Override
+    public List<Books> loadInBackground() {
+
+        if (mURL == null) {
+            return null;
+        }
+
+        List<Books> result = DataSink.fetchBookData(mURL);
+        return result;
+    }
+}

app/src/main/java/com/example/h_mal/bookappudacity/DataSink.java

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+package com.example.h_mal.bookappudacity;
+
+import android.text.TextUtils;
+import android.util.Log;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+
+import static com.example.h_mal.bookappudacity.BooksAdapter.LOG_TAG;
+
+/**
+ * Created by h_mal on 09/03/2017.
+ */
+
+public class DataSink {
+
+    private DataSink() {}
+
+    private static URL createURL(String stringURL){
+        URL url = null;
+        try{
+            url = new URL(stringURL);
+        } catch (MalformedURLException e){
+            Log.e(LOG_TAG, "Error when creating URL", e);
+        }
+        return url;
+    }
+
+    private static String makeHTTPRequest(URL url) throws IOException {
+        String jsonResponse = "";
+
+        if (url == null){
+            return jsonResponse;
+        }
+
+        HttpURLConnection urlConnection = null;
+        InputStream inputStream = null;
+        try {
+            urlConnection = (HttpURLConnection) url.openConnection();
+            urlConnection.setReadTimeout(10000);
+            urlConnection.setConnectTimeout(15000);
+            urlConnection.setRequestMethod("GET");
+            urlConnection.connect();
+
+        if (urlConnection.getResponseCode() == 200){
+            inputStream = urlConnection.getInputStream();
+            jsonResponse = readFromStream(inputStream);
+        }else{
+            Log.e(LOG_TAG, "Error response code: " + urlConnection.getResponseCode());
+        }
+    }catch (IOException e){
+            Log.e(LOG_TAG, "Problem retrieving the earthquake JSON results.", e);
+        } finally {
+            if (urlConnection != null) {
+                urlConnection.disconnect();
+            }
+            if (inputStream != null) {
+                inputStream.close();
+            }
+        }
+        return jsonResponse;
+    }
+
+    private static String readFromStream(InputStream inputStream) throws IOException {
+        StringBuilder output = new StringBuilder();
+        if (inputStream != null) {
+            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, Charset.forName("UTF-8"));
+            BufferedReader reader = new BufferedReader(inputStreamReader);
+            String line = reader.readLine();
+            while (line != null) {
+                output.append(line);
+                line = reader.readLine();
+            }
+        }
+        return output.toString();
+    }
+
+    private static List<Books> extractFeatureFromJson(String booksJSON) {
+        if (TextUtils.isEmpty(booksJSON)) {
+            return null;
+        }
+
+        List<Books> books = new ArrayList<>();
+
+        try {
+            JSONObject baseJsonResponse = new JSONObject(booksJSON);
+
+            JSONArray booksArray = baseJsonResponse.getJSONArray("items");
+
+            for (int i = 0; i < booksArray.length(); i++) {
+                JSONObject currentBook = booksArray.getJSONObject(i);
+
+                JSONObject properties = currentBook.getJSONObject("volumeInfo");
+
+                if(properties.has("authors")) {
+                    String author = properties.getString("authors");
+
+                    String title = properties.getString("title");
+
+                    String url = properties.getString("infoLink");
+
+                    Books book = new Books(title, author, url);
+                    books.add(book);
+                }
+
+            }
+
+        } catch (JSONException e) {
+            Log.e("DataSink", "Problem parsing the book JSON results", e);
+        }
+
+        return books;
+    }
+
+    public static List<Books> fetchBookData(String requestUrl) {
+
+        URL url = createURL(requestUrl);
+        String jsonResponse = null;
+
+        try {
+            jsonResponse = makeHTTPRequest(url);
+        } catch (IOException e) {
+            Log.e(LOG_TAG, "Problem making the HTTP request.", e);
+        }
+
+        List<Books> books = extractFeatureFromJson(jsonResponse);
+
+        return books;
+    }
+}
+

app/src/main/java/com/example/h_mal/bookappudacity/MainActivity.java

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+package com.example.h_mal.bookappudacity;
+
+import android.app.LoaderManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.Loader;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.net.Uri;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.EditText;
+import android.widget.ListView;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MainActivity extends AppCompatActivity implements LoaderManager.LoaderCallbacks<List<Books>> {
+
+    private static final int BOOK_LOADER_ID = 1;
+
+    private static final String LOG_TAG = MainActivity.class.getName();
+
+    private static String GOOGLE_BOOKS_URL = "https://www.googleapis.com/books/v1/volumes?q=android&maxResults=40";
+
+    private BooksAdapter mAdapter;
+
+    private TextView mEmptyStateTextView;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        Log.i(LOG_TAG, "initiate loader");
+
+        ListView booksListView = (ListView) findViewById(R.id.book_list);
+
+        mEmptyStateTextView = (TextView) findViewById(R.id.empty_view);
+        booksListView.setEmptyView(mEmptyStateTextView);
+
+        mAdapter = new BooksAdapter(this, new ArrayList<Books>());
+        booksListView.setAdapter(mAdapter);
+
+        booksListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
+                Books currentBook = mAdapter.getItem(position);
+
+                Uri bookUri = Uri.parse(currentBook.getURLaddress());
+
+                Intent websiteIntent = new Intent(Intent.ACTION_VIEW, bookUri);
+
+                startActivity(websiteIntent);
+            }
+        });
+        ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
+        NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
+
+        if(networkInfo != null && networkInfo.isConnected()){
+            LoaderManager loaderManager = getLoaderManager();
+            loaderManager.initLoader(BOOK_LOADER_ID, null, this);
+        }else{
+            mEmptyStateTextView.setText("no internet connection");
+            ProgressBar progressBar = (ProgressBar) findViewById(R.id.progress_bar);
+            progressBar.setVisibility(View.GONE);
+        }
+
+        BookAsyncTask task = new BookAsyncTask();
+        task.execute(GOOGLE_BOOKS_URL);
+    }
+
+    public void ButtonClick(View view){
+        EditText enteredText = (EditText) findViewById(R.id.edit_text);
+        String dataStructure = enteredText.getText().toString();
+        Uri.Builder builder = new Uri.Builder();
+        builder.scheme("https://www.googleapis.com/books/v1/volumes?q=").appendPath(dataStructure).fragment("&maxResults=40");
+        String newUrl = builder.build().toString();
+        GOOGLE_BOOKS_URL = newUrl;
+        BookAsyncTask task = new BookAsyncTask();
+        task.execute(GOOGLE_BOOKS_URL);
+    }
+
+    public void ButtonClear(View view){
+
+        EditText enteredText = (EditText) findViewById(R.id.edit_text);
+        enteredText.setText("");
+        GOOGLE_BOOKS_URL = "https://www.googleapis.com/books/v1/volumes?q=android&maxResults=40";
+        BookAsyncTask task = new BookAsyncTask();
+        task.execute(GOOGLE_BOOKS_URL);
+    }
+
+    @Override
+    public void onLoadFinished(Loader<List<Books>> loader, List<Books> books) {
+        mEmptyStateTextView.setText("no books found");
+        mAdapter.clear();
+
+        ProgressBar progressBar = (ProgressBar) findViewById(R.id.progress_bar);
+        progressBar.setVisibility(View.GONE);
+
+        if (books != null && !books.isEmpty()) {
+            mAdapter.addAll(books);
+        }
+    }
+
+    @Override
+    public void onLoaderReset(Loader<List<Books>> loader) {
+        mAdapter.clear();
+    }
+
+    @Override
+    public Loader<List<Books>> onCreateLoader(int i, Bundle bundle) {
+        Log.e(LOG_TAG, "Loader Created");
+        return new BooksLoader(this, GOOGLE_BOOKS_URL);
+    }
+
+    private class BookAsyncTask extends AsyncTask<String, Void, List<Books>> {
+
+        @Override
+        protected List<Books> doInBackground(String... urls) {
+
+            if (urls.length < 1 || urls[0] == null) {
+                return null;
+            }
+
+            List<Books> result = DataSink.fetchBookData(urls[0]);
+            return result;
+        }
+
+        @Override
+        protected void onPostExecute(List<Books> data) {
+
+            mAdapter.clear();
+
+            if (data != null && !data.isEmpty()) {
+                mAdapter.addAll(data);
+            }
+        }
+    }
+
+}

app/src/main/res/layout/activity_main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+android:layout_width="match_parent"
+android:layout_height="match_parent">
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:id="@+id/Layout1">
+        <EditText
+            android:id="@+id/edit_text"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:hint="Search for Book" />
+
+        <LinearLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+            <Button
+                android:text="Search"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:id="@+id/button"
+                android:onClick="ButtonClick"/>
+            <Button
+                android:text="Clear"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:id="@+id/buttonClear"
+                android:onClick="ButtonClear"/>
+        </LinearLayout>
+    </LinearLayout>
+<ListView
+    android:id="@+id/book_list"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_below="@id/Layout1" />
+<TextView
+    android:id="@+id/empty_view"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_centerInParent="true"
+    android:textAppearance="?android:textAppearanceMedium" />
+<ProgressBar
+    android:id="@+id/progress_bar"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_centerInParent="true"
+    android:textAppearance="?android:textAppearanceMedium"/>
+</RelativeLayout>

app/src/main/res/layout/list_item.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="?android:attr/listPreferredItemHeight"
+    android:orientation="vertical"
+    android:paddingEnd="6dp"
+    android:paddingLeft="6dp"
+    android:paddingRight="6dp"
+    android:paddingStart="6dp">
+    <TextView
+        android:id="@+id/title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:textSize="16sp"
+        android:textColor="@android:color/black"
+        android:gravity="top"
+        android:maxLines="2"
+        android:text="Title ...once upon a time there was a long book title"/>
+
+    <LinearLayout
+        android:gravity="bottom"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:layout_marginTop="6dp"
+        android:layout_marginBottom="8dp">
+
+    <TextView
+        android:id="@+id/author"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textStyle="italic"
+        android:textSize="12sp"
+        android:text="Author1"
+        android:layout_marginRight="8dp"/>
+
+        <TextView
+        android:id="@+id/author_secondary"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textStyle="italic"
+        android:textSize="12sp"
+            android:text="Author2"/>
+    </LinearLayout>
+
+</LinearLayout>

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>

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>

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>

app/src/main/res/values/strings.xml

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+<resources>
+    <string name="app_name">BookAppUdacity</string>
+</resources>

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>

app/src/test/java/com/example/h_mal/bookappudacity/ExampleUnitTest.java

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+package com.example.h_mal.bookappudacity;
+
+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);
+    }
+}