initial

app/src/androidTest/java/net/headlezz/udacityproject1/ApplicationTest.java

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+package net.headlezz.udacityproject1;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}

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="net.headlezz.udacityproject1" >
+
+    <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"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme.NoActionBar" >
+            <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/net/headlezz/udacityproject1/MainActivity.java

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+package net.headlezz.udacityproject1;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+        setTitle(getString(R.string.app_name));
+
+        if(savedInstanceState == null) {
+            getSupportFragmentManager()
+                    .beginTransaction()
+                    .add(R.id.fragmentHolder, new MovieListFragment())
+                    .commit();
+        }
+    }
+
+}

app/src/main/java/net/headlezz/udacityproject1/MovieListAdapter.java

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+package net.headlezz.udacityproject1;
+
+import android.content.Context;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.Toast;
+
+import net.headlezz.udacityproject1.tmdbapi.Movie;
+import net.headlezz.udacityproject1.tmdbapi.TMDBApi;
+
+import java.util.List;
+
+public class MovieListAdapter extends RecyclerView.Adapter<MovieListAdapter.MovieViewHolder>{
+
+    Context context;
+    List<Movie> mMovies;
+
+    public MovieListAdapter(Context context, List<Movie> movies) {
+        this.context = context;
+        mMovies = movies;
+    }
+
+    @Override
+    public MovieViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View movieView = LayoutInflater.from(parent.getContext()).inflate(R.layout.movie_list_item, parent, false);
+        return new MovieViewHolder(movieView);
+    }
+
+    @Override
+    public void onBindViewHolder(MovieViewHolder holder, int position) {
+        holder.setMovie(mMovies.get(position));
+    }
+
+    @Override
+    public int getItemCount() {
+        return mMovies.size();
+    }
+
+    /**
+     * Viewholder for the movie items
+     */
+    class MovieViewHolder extends RecyclerView.ViewHolder {
+
+        ImageView ivPoster;
+        Movie movie;
+
+        public MovieViewHolder(View itemView) {
+            super(itemView);
+            ivPoster = (ImageView) itemView;
+            ivPoster.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    Toast.makeText(v.getContext(), movie.getTitle() + " clicked.", Toast.LENGTH_SHORT).show();
+                }
+            });
+        }
+
+        public void setMovie(Movie movie) {
+            this.movie = movie;
+            TMDBApi.loadPoster(ivPoster, movie);
+        }
+    }
+
+}

app/src/main/java/net/headlezz/udacityproject1/MovieListFragment.java

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+package net.headlezz.udacityproject1;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.RecyclerView;
+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.Toast;
+
+import net.headlezz.udacityproject1.tmdbapi.Movie;
+import net.headlezz.udacityproject1.tmdbapi.MovieList;
+import net.headlezz.udacityproject1.tmdbapi.MovieListCallback;
+import net.headlezz.udacityproject1.tmdbapi.TMDBApi;
+
+import java.util.List;
+
+import retrofit.Call;
+
+/**
+ * A fragment showing a list of movies
+ */
+public class MovieListFragment extends Fragment {
+
+    // TODO fix restore
+
+    public static final String TAG = MovieListFragment.class.getSimpleName();
+
+    /**
+     * The number of columns our movie grid shows
+     */
+    private static final int NUM_COLUMNS = 2;
+
+    /**
+     * The currently selected sorting order of the list
+     * @see TMDBApi
+     */
+    private int mSortingOrder = TMDBApi.SORT_ORDER_MOST_POPULAR;
+
+    RecyclerView mMovieGridView;
+
+    /**
+     * Holding a reference to running api calls. This makes it possible to cancel them if
+     * the user leaves the app, resorts the list or opens the detail view.
+     */
+    Call<MovieList> mMovieListCall;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_movie_list, container, false);
+        mMovieGridView = (RecyclerView) view.findViewById(R.id.movie_list_grid);
+        return view;
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        mMovieGridView.setLayoutManager(new GridLayoutManager(getActivity(), NUM_COLUMNS));
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        loadMovieList();
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
+        inflater.inflate(R.menu.movie_list_menu, menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.action_sort_popularity:
+                mSortingOrder = TMDBApi.SORT_ORDER_MOST_POPULAR;
+                loadMovieList();
+                return true;
+            case R.id.action_sort_rating:
+                mSortingOrder = TMDBApi.SORT_ORDER_HIGHEST_RATED;
+                loadMovieList();
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
+    /**
+     * Loads a list of movies into the movie grid.
+     * mSortingOrder will be used to determine the sorting
+     */
+    private void loadMovieList() {
+        stopLoadingMovies(); // stop any running query before starting a new one
+        MovieListCallback cb = new MovieListCallback() {
+            @Override
+            protected void onResponse(MovieList movies) {
+                setListToGrid(movies.getList());
+            }
+
+            @Override
+            public void onFailure(Throwable t) {
+                Log.d(TAG, t.getMessage());
+                Toast.makeText(getActivity(), "Somethig went wrong", Toast.LENGTH_SHORT).show();
+            }
+        };
+        mMovieListCall = TMDBApi.discoverMovies(mSortingOrder, getString(R.string.api_key));
+        mMovieListCall.enqueue(cb);
+    }
+
+    private void setListToGrid(List<Movie> movies) {
+        mMovieGridView.setAdapter(new MovieListAdapter(getActivity(), movies));
+    }
+
+    /**
+     * Stops the current api query
+     */
+    private void stopLoadingMovies() {
+        if(mMovieListCall != null) {
+            mMovieListCall.cancel();
+            mMovieListCall = null;
+        }
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        stopLoadingMovies();
+    }
+}

app/src/main/java/net/headlezz/udacityproject1/tmdbapi/Movie.java

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+package net.headlezz.udacityproject1.tmdbapi;
+
+/**
+ * Data object to represent a single movie
+ * Only required data from the api is stored to save memory
+ */
+public class Movie {
+
+    String title;
+    String posterPath;
+    String overview;
+    double avRating;
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getPosterPath() {
+        return posterPath;
+    }
+
+    public String getOverview() {
+        return overview;
+    }
+
+    public double getAvRating() {
+        return avRating;
+    }
+}

app/src/main/java/net/headlezz/udacityproject1/tmdbapi/MovieList.java

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+package net.headlezz.udacityproject1.tmdbapi;
+
+import java.util.List;
+
+public class MovieList {
+
+    public MovieList(List<Movie> movieList) {
+        this.movies = movieList;
+    }
+
+    List<Movie> movies;
+
+    public List<Movie> getList() { return movies; }
+
+}

app/src/main/java/net/headlezz/udacityproject1/tmdbapi/MovieListCallback.java

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+package net.headlezz.udacityproject1.tmdbapi;
+
+import retrofit.Callback;
+import retrofit.Response;
+import retrofit.Retrofit;
+
+public abstract class MovieListCallback implements Callback<MovieList> {
+
+    @Override
+     public void onResponse(Response<MovieList> response, Retrofit retrofit) {
+        if(response.isSuccess())
+            onResponse(response.body());
+        else
+            onFailure(new MovieDownloadException("Something went wrong" + response.code())); // TODO make this better
+    }
+
+    protected abstract void onResponse(MovieList movies);
+
+    public static class MovieDownloadException extends Exception {
+        public MovieDownloadException(String detailMessage) {
+            super(detailMessage);
+        }
+    }
+}

app/src/main/java/net/headlezz/udacityproject1/tmdbapi/MovieListDeserializer.java

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+package net.headlezz.udacityproject1.tmdbapi;
+
+import android.util.Log;
+
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParseException;
+
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+
+public class MovieListDeserializer implements JsonDeserializer<MovieList> {
+
+    @Override
+    public MovieList deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
+        List<Movie> movieList = new ArrayList<>();
+        for(JsonElement elem : json.getAsJsonObject().getAsJsonArray("results")) {
+            try { // TODO fix this and remove try/catch
+                JsonObject jsonObj = elem.getAsJsonObject();
+                Movie m = new Movie();
+                m.title = jsonObj.get("title").getAsString();
+                m.overview = jsonObj.get("overview").getAsString();
+                m.avRating = jsonObj.get("vote_average").getAsDouble();
+                JsonElement posterPath = jsonObj.get("poster_path");
+                m.posterPath = posterPath.getAsString();
+                movieList.add(m);
+            } catch (Exception e) {
+                Log.e(MovieListDeserializer.class.getSimpleName(), e.toString());
+            }
+        }
+        return new MovieList(movieList);
+    }
+}

app/src/main/java/net/headlezz/udacityproject1/tmdbapi/TMDBApi.java

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+package net.headlezz.udacityproject1.tmdbapi;
+
+import android.widget.ImageView;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.squareup.picasso.Picasso;
+
+import retrofit.Call;
+import retrofit.GsonConverterFactory;
+import retrofit.Retrofit;
+import retrofit.http.GET;
+import retrofit.http.Headers;
+import retrofit.http.Query;
+
+/**
+ * This class provides all the methods to interact with the tmdb api
+ * Methods are all static and the underlying retrofit service will be reused.
+ */
+public class TMDBApi {
+
+    private static final String BASE_URL = "http://api.themoviedb.org/3/";
+    private static final String IMAGE_BASE_URL = "http://image.tmdb.org/t/p/w342"; // TODO select size depending on device screen ratios
+
+    /**
+     * These are the possible sorting orders
+     */
+    public static final int SORT_ORDER_MOST_POPULAR = 1;
+    public static final int SORT_ORDER_HIGHEST_RATED = 2;
+
+    private static TMDBApi.TMDBApiService apiService = buildApiService();
+
+    /**
+     * The initialization steps for the retrofit api
+     * @return TMDBApiService service to make api calls
+     */
+    private static TMDBApiService buildApiService() {
+        Gson gson = new GsonBuilder()
+                .registerTypeAdapter(MovieList.class, new MovieListDeserializer())
+                .create();
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl(BASE_URL)
+                .addConverterFactory(GsonConverterFactory.create(gson))
+                .build();
+        return retrofit.create(TMDBApiService.class);
+    }
+
+    public static void loadPoster(ImageView imageView, Movie movie) {
+        Picasso.with(imageView.getContext()).load(IMAGE_BASE_URL + movie.getPosterPath()).into(imageView);
+    }
+
+    public static Call<MovieList> discoverMovies(int sortOrder, String apiKey) {
+        String sort;
+        switch (sortOrder) {
+            case SORT_ORDER_MOST_POPULAR:
+                sort = "popularity.desc";
+                break;
+            default:
+                sort = "vote_average.desc";
+        }
+        return apiService.discoverMovies(sort, apiKey);
+    }
+
+    /**
+     * Api interface for retrofit
+     */
+    public interface TMDBApiService {
+        @Headers("Accept: application/json")
+        @GET("discover/movie")
+        Call<MovieList> discoverMovies(@Query("sort_by") String sortOrder, @Query("api_key") String apiKey);
+    }
+
+}

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

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity"
+    android:orientation="vertical">
+
+    <android.support.v7.widget.Toolbar android:id="@+id/toolbar"
+        android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"
+        android:background="?attr/colorPrimary" app:popupTheme="@style/AppTheme.PopupOverlay" />
+
+    <FrameLayout
+        android:id="@+id/fragmentHolder"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+
+</LinearLayout>

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

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+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:showIn="@layout/activity_main"
+    tools:context=".MainActivityFragment">
+
+    <android.support.v7.widget.RecyclerView
+        android:id="@+id/movie_list_grid"
+        android:scrollbars="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"/>
+
+</RelativeLayout>

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

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+<?xml version="1.0" encoding="utf-8"?>
+<ImageView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:adjustViewBounds="true"/>

app/src/main/res/menu/movie_list_menu.xml

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+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
+    <item android:id="@+id/action_sort_popularity" android:title="Sort by popularity" app:showAsAction="never" />
+    <item android:id="@+id/action_sort_rating" android:title="Sort by av. rating" app:showAsAction="never" />
+</menu>

app/src/main/res/values-v21/styles.xml

@@ -0,0 +1,7 @@
+<resources>>
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+    </style>
+</resources>

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/api_key.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="api_key"></string>
+</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 +1,6 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>

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

@@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name">UdacityProject1</string>
+    <string name="action_settings">Settings</string>
+</resources>

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

@@ -0,0 +1,17 @@
+<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>
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+
+</resources>

app/src/test/java/net/headlezz/udacityproject1/ExampleUnitTest.java

@@ -0,0 +1,15 @@
+package net.headlezz.udacityproject1;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * To work on unit tests, switch the Test Artifact in the Build Variants view.
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}