Jakub Kwiatek - Android

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 27
+    defaultConfig {
+        applicationId "com.kik.reposappjava"
+        minSdkVersion 24
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        targetCompatibility 1.8
+        sourceCompatibility 1.8
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+
+    implementation 'com.squareup.retrofit2:retrofit:2.3.0'
+    implementation  'com.squareup.retrofit2:converter-gson:2.3.0'
+
+    implementation 'com.android.support:recyclerview-v7:27.1.1'
+    implementation 'com.android.support:cardview-v7:27.1.1'
+
+    implementation 'com.jakewharton:butterknife:8.8.1'
+    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
+
+    implementation "android.arch.lifecycle:extensions:1.1.1"
+
+    implementation 'com.google.dagger:dagger:2.15'
+    annotationProcessor 'com.google.dagger:dagger-compiler:2.15'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# 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 *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/kik/reposappjava/ExampleInstrumentedTest.java

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+package com.kik.reposappjava;
+
+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.*;
+
+/**
+ * Instrumented 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() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.kik.reposappjava", 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.kik.reposappjava">
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".view.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".view.RepositoriesListActivity"
+            android:parentActivityName=".view.MainActivity">
+        </activity>
+        <activity android:name=".view.RepositoryDetailsActivity"
+            android:parentActivityName=".view.RepositoriesListActivity">
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/kik/reposappjava/model/UserReposRepository.java

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+package com.kik.reposappjava.model;
+
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.MutableLiveData;
+
+import com.kik.reposappjava.model.di.DaggerGitHubAPIClientComponent;
+import com.kik.reposappjava.model.di.GitHubAPIClientComponent;
+import com.kik.reposappjava.model.data.GitHubAPIClient;
+import com.kik.reposappjava.model.data.Repository;
+
+import java.util.List;
+
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+
+public class UserReposRepository {
+
+    private static UserReposRepository userReposRepository = null;
+
+    GitHubAPIClient gitHubAPIClient;
+
+    public MutableLiveData<Boolean> userExists = new MutableLiveData<>();
+    public MutableLiveData<List<Repository>> userRepositories= new MutableLiveData<>();
+
+    public UserReposRepository() {
+        GitHubAPIClientComponent gitHubAPIClientComponent = DaggerGitHubAPIClientComponent.builder().build();
+        gitHubAPIClient = gitHubAPIClientComponent.getGitHubAPIClient();
+    }
+
+    public UserReposRepository(GitHubAPIClient gitHubAPIClient) {
+        this.gitHubAPIClient = gitHubAPIClient;
+    }
+
+    public static UserReposRepository getInstance(){
+        if (userReposRepository == null){
+            userReposRepository = new UserReposRepository();
+        }
+        return userReposRepository;
+    }
+    public void loadReposForUser(final String user) {
+        Call<List<Repository>> call = gitHubAPIClient.loadRepos(user);
+        call.enqueue(new Callback<List<Repository>>() {
+            @Override
+            public void onResponse(Call<List<Repository>> call, Response<List<Repository>> response) {
+                if (response.isSuccessful()){
+                    userExists.setValue(true);
+                    userRepositories.setValue(response.body());
+                }
+                else userExists.setValue(false);
+            }
+
+            @Override
+            public void onFailure(Call<List<Repository>> call, Throwable t) {
+            }
+        });
+    }
+
+    public LiveData<List<Repository>> getUserRepositories() {
+        return userRepositories;
+    }
+
+    public LiveData<Boolean> getUserExists() {
+        return userExists;
+    }
+
+    public void cleanUserExists() {
+        userExists.setValue(null);
+    }
+}

app/src/main/java/com/kik/reposappjava/model/data/GitHubAPIClient.java

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+package com.kik.reposappjava.model.data;
+
+import java.util.List;
+
+import retrofit2.Call;
+import retrofit2.http.GET;
+import retrofit2.http.Path;
+
+public interface GitHubAPIClient {
+
+    @GET("users/{user}/repos")
+    Call<List<Repository>> loadRepos(@Path("user") String userName);
+
+}

app/src/main/java/com/kik/reposappjava/model/data/Repository.java

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+package com.kik.reposappjava.model.data;
+
+import com.google.gson.annotations.SerializedName;
+
+public class Repository {
+    private String name;
+    private String description;
+    private String language;
+    private int watchers;
+    @SerializedName("stargazers_count")
+    private int stars;
+    private int forks;
+
+    public String getName() {
+        return name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public String getLanguage() {
+        return language;
+    }
+
+    public int getWatchers() {
+        return watchers;
+    }
+
+    public int getStars() {
+        return stars;
+    }
+
+    public int getForks() {
+        return forks;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public void setLanguage(String language) {
+        this.language = language;
+    }
+}

app/src/main/java/com/kik/reposappjava/model/di/GitHubAPIClientComponent.java

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+package com.kik.reposappjava.model.di;
+
+import com.kik.reposappjava.model.data.GitHubAPIClient;
+
+import dagger.Component;
+
+@Component(modules = GitHubAPIClientModule.class)
+public interface GitHubAPIClientComponent {
+    GitHubAPIClient getGitHubAPIClient();
+}

app/src/main/java/com/kik/reposappjava/model/di/GitHubAPIClientModule.java

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+package com.kik.reposappjava.model.di;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.kik.reposappjava.model.data.GitHubAPIClient;
+
+import dagger.Module;
+import dagger.Provides;
+import okhttp3.OkHttpClient;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+@Module
+public class GitHubAPIClientModule {
+
+    @Provides
+    public GitHubAPIClient gitHubAPIClient(Retrofit retrofit){
+        return retrofit.create(GitHubAPIClient.class);
+    }
+
+    @Provides
+    public Retrofit retrofit(OkHttpClient okHttpClient, GsonConverterFactory gsonConverterFactory){
+        return new Retrofit.Builder()
+                .client(okHttpClient)
+                .baseUrl("https://api.github.com/")
+                .addConverterFactory(gsonConverterFactory)
+                .build();
+    }
+
+    @Provides
+    public GsonConverterFactory gsonConverterFactory(Gson gson){
+        return GsonConverterFactory.create(gson);
+    }
+
+    @Provides
+    public Gson gson(){
+        GsonBuilder gsonBuilder = new GsonBuilder();
+        return gsonBuilder.create();
+    }
+
+    @Provides
+    public OkHttpClient okHttpClient(){
+        return new OkHttpClient.Builder().build();
+    }
+
+
+}

app/src/main/java/com/kik/reposappjava/view/MainActivity.java

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+package com.kik.reposappjava.view;
+
+import android.arch.lifecycle.ViewModelProviders;
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.ProgressBar;
+
+import com.kik.reposappjava.R;
+import com.kik.reposappjava.viewmodel.MainActivityViewModel;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+
+public class MainActivity extends AppCompatActivity {
+
+    @BindView(R.id.et_user_name)
+    EditText etUserName;
+    @BindView(R.id.pb_loading_repos)
+    ProgressBar pbLoadingRepos;
+
+    MainActivityViewModel mainActivityViewModel;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        ButterKnife.bind(this);
+
+        subscribeViewModel();
+    }
+
+    private void subscribeViewModel() {
+        mainActivityViewModel = ViewModelProviders.of(this).get(MainActivityViewModel.class);
+        mainActivityViewModel.getUserExists().observe(
+                this,
+                userExists -> {
+                    if (userExists != null) {
+                        loadProgressbarGone();
+                        if (userExists) {
+                            startListRepositoryActivity();
+                        } else {
+                            userUnknownNotification();
+                        }
+                    }
+                });
+    }
+
+    private void loadProgressbarGone() {
+        pbLoadingRepos.setVisibility(View.GONE);
+    }
+
+    private void startListRepositoryActivity() {
+        startActivity(new Intent(this, RepositoriesListActivity.class));
+    }
+
+    private void userUnknownNotification() {
+        etUserName.setError(getString(R.string.user_error));
+    }
+
+    @OnClick(R.id.btn_load_repos)
+    public void loadRepos() {
+        loadProgressbarVisible();
+        mainActivityViewModel.setUserName(etUserName.getText().toString());
+    }
+
+    private void loadProgressbarVisible() {
+        pbLoadingRepos.setVisibility(View.VISIBLE);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        mainActivityViewModel.cleanSearch();
+    }
+}