├── .gitignore ├── .idea ├── codeStyles │ └── Project.xml ├── encodings.xml ├── gradle.xml ├── misc.xml └── runConfigurations.xml ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── codingwithmitch │ │ └── retrofitcaching │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── codingwithmitch │ │ │ └── retrofitcaching │ │ │ ├── Api.java │ │ │ ├── MainActivity.java │ │ │ ├── MyApplication.java │ │ │ ├── Photo.java │ │ │ ├── RecyclerAdapter.java │ │ │ ├── ServiceGenerator.java │ │ │ └── VerticalSpacingItemDecorator.java │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ ├── ic_launcher_background.xml │ │ └── white_background.png │ │ ├── layout │ │ ├── activity_main.xml │ │ └── layout_photo_list_item.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── codingwithmitch │ └── retrofitcaching │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/caches 5 | /.idea/libraries 6 | /.idea/modules.xml 7 | /.idea/workspace.xml 8 | /.idea/navEditor.xml 9 | /.idea/assetWizardSettings.xml 10 | .DS_Store 11 | /build 12 | /captures 13 | .externalNativeBuild 14 | -------------------------------------------------------------------------------- /.idea/codeStyles/Project.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 15 | 16 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | -------------------------------------------------------------------------------- /.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 14 | 15 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 14 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 28 5 | defaultConfig { 6 | applicationId "com.codingwithmitch.retrofitcaching" 7 | minSdkVersion 21 8 | targetSdkVersion 28 9 | versionCode 1 10 | versionName "1.0" 11 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 12 | } 13 | buildTypes { 14 | release { 15 | minifyEnabled false 16 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 17 | } 18 | } 19 | } 20 | 21 | dependencies { 22 | implementation fileTree(dir: 'libs', include: ['*.jar']) 23 | implementation 'androidx.appcompat:appcompat:1.0.0-beta01' 24 | implementation 'androidx.constraintlayout:constraintlayout:1.1.2' 25 | testImplementation 'junit:junit:4.12' 26 | androidTestImplementation 'androidx.test:runner:1.1.0-alpha4' 27 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4' 28 | 29 | 30 | // Retrofit 31 | def retrofitVersion = "2.5.0" 32 | implementation "com.squareup.retrofit2:retrofit:$retrofitVersion" 33 | implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion" 34 | 35 | // okhttp 36 | def okHttpVersion = "3.11.0" 37 | implementation "com.squareup.okhttp3:okhttp:$okHttpVersion" 38 | implementation "com.squareup.okhttp3:logging-interceptor:$okHttpVersion" 39 | 40 | // Glide 41 | def glideVersion = "4.9.0" 42 | implementation "com.github.bumptech.glide:glide:$glideVersion" 43 | annotationProcessor "com.github.bumptech.glide:compiler:$glideVersion" 44 | 45 | // Material design for recyclerview 46 | def material_version = "1.0.0" 47 | implementation "com.google.android.material:material:$material_version" 48 | } 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/codingwithmitch/retrofitcaching/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import android.content.Context; 4 | 5 | import androidx.test.InstrumentationRegistry; 6 | import androidx.test.runner.AndroidJUnit4; 7 | 8 | import org.junit.Test; 9 | import org.junit.runner.RunWith; 10 | 11 | import static org.junit.Assert.*; 12 | 13 | /** 14 | * Instrumented test, which will execute on an Android device. 15 | * 16 | * @see Testing documentation 17 | */ 18 | @RunWith(AndroidJUnit4.class) 19 | public class ExampleInstrumentedTest { 20 | @Test 21 | public void useAppContext() { 22 | // Context of the app under test. 23 | Context appContext = InstrumentationRegistry.getTargetContext(); 24 | 25 | assertEquals("com.codingwithmitch.retrofitcaching", appContext.getPackageName()); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | -------------------------------------------------------------------------------- /app/src/main/java/com/codingwithmitch/retrofitcaching/Api.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import java.util.List; 4 | 5 | import retrofit2.Call; 6 | import retrofit2.http.GET; 7 | import retrofit2.http.Path; 8 | 9 | public interface Api { 10 | 11 | @GET("{url}") 12 | Call> searchPhotos( 13 | @Path("url") String url 14 | ); 15 | 16 | @GET("photos/{id}") 17 | Call searchPhoto( 18 | @Path("id") String id 19 | ); 20 | 21 | } 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | -------------------------------------------------------------------------------- /app/src/main/java/com/codingwithmitch/retrofitcaching/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import androidx.appcompat.app.AppCompatActivity; 4 | import androidx.appcompat.widget.SearchView; 5 | import androidx.recyclerview.widget.LinearLayoutManager; 6 | import androidx.recyclerview.widget.RecyclerView; 7 | import retrofit2.Call; 8 | import retrofit2.Callback; 9 | import retrofit2.Response; 10 | 11 | import android.app.Activity; 12 | import android.os.Bundle; 13 | import android.util.Log; 14 | import android.view.View; 15 | import android.view.inputmethod.InputMethodManager; 16 | 17 | import com.bumptech.glide.Glide; 18 | import com.bumptech.glide.RequestManager; 19 | import com.bumptech.glide.request.RequestOptions; 20 | 21 | import java.util.ArrayList; 22 | import java.util.List; 23 | 24 | public class MainActivity extends AppCompatActivity { 25 | 26 | private static final String TAG = "MainActivity"; 27 | 28 | private SearchView searchView; 29 | private RecyclerView recyclerView; 30 | private RecyclerAdapter adapter; 31 | private ServiceGenerator serviceGenerator = ServiceGenerator.getInstance(); 32 | 33 | @Override 34 | protected void onCreate(Bundle savedInstanceState) { 35 | super.onCreate(savedInstanceState); 36 | setContentView(R.layout.activity_main); 37 | recyclerView = findViewById(R.id.recycler_view); 38 | searchView = findViewById(R.id.search_view); 39 | 40 | initRecyclerView(); 41 | initSearchView(); 42 | } 43 | 44 | private void searchApi(String url){ 45 | hideKeyboard(); 46 | 47 | if(url.contains("/")){ 48 | String id = url.substring(url.indexOf("/") + 1); 49 | serviceGenerator.getApi().searchPhoto(id) 50 | .enqueue(new Callback() { 51 | @Override 52 | public void onResponse(Call call, Response response) { 53 | Log.e(TAG, "log: -----------------------------"); 54 | Log.d(TAG, "onResponse: " + response.body()); 55 | 56 | if(response.raw().networkResponse() != null){ 57 | Log.d(TAG, "onResponse: response is from NETWORK..."); 58 | } 59 | else if(response.raw().cacheResponse() != null 60 | && response.raw().networkResponse() == null){ 61 | Log.d(TAG, "onResponse: response is from CACHE..."); 62 | } 63 | 64 | List photos = new ArrayList<>(); 65 | photos.add(response.body()); 66 | adapter.setPhotos(photos); 67 | } 68 | 69 | @Override 70 | public void onFailure(Call call, Throwable t) { 71 | Log.e(TAG, "onFailure: ", t); 72 | adapter.setPhotos(new ArrayList()); 73 | } 74 | }); 75 | } 76 | else{ 77 | serviceGenerator.getApi().searchPhotos(url) 78 | .enqueue(new Callback>() { 79 | @Override 80 | public void onResponse(Call> call, Response> response) { 81 | Log.d(TAG, "onResponse: " + response.body()); 82 | if(response.raw().networkResponse() != null){ 83 | Log.d(TAG, "onResponse: response is from NETWORK..."); 84 | } 85 | else if(response.raw().cacheResponse() != null 86 | && response.raw().networkResponse() == null){ 87 | Log.d(TAG, "onResponse: response is from CACHE..."); 88 | } 89 | 90 | if(response.body() == null){ 91 | adapter.setPhotos(new ArrayList()); 92 | } 93 | else{ 94 | adapter.setPhotos(response.body()); 95 | } 96 | } 97 | 98 | @Override 99 | public void onFailure(Call> call, Throwable t) { 100 | Log.e(TAG, "onFailure: ", t); 101 | adapter.setPhotos(new ArrayList()); 102 | } 103 | }); 104 | } 105 | } 106 | 107 | private void initSearchView(){ 108 | searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { 109 | @Override 110 | public boolean onQueryTextSubmit(String s) { 111 | searchApi(s); 112 | return true; 113 | } 114 | 115 | @Override 116 | public boolean onQueryTextChange(String s) { 117 | return false; 118 | } 119 | }); 120 | } 121 | 122 | private void initRecyclerView(){ 123 | recyclerView.setLayoutManager(new LinearLayoutManager(this)); 124 | VerticalSpacingItemDecorator itemDecorator = new VerticalSpacingItemDecorator(20); 125 | recyclerView.addItemDecoration(itemDecorator); 126 | adapter = new RecyclerAdapter(initGlide()); 127 | recyclerView.setAdapter(adapter); 128 | } 129 | 130 | private RequestManager initGlide(){ 131 | RequestOptions options = new RequestOptions() 132 | .placeholder(R.drawable.white_background) 133 | .error(R.drawable.white_background); 134 | 135 | return Glide.with(this) 136 | .setDefaultRequestOptions(options); 137 | } 138 | 139 | public void hideKeyboard() { 140 | InputMethodManager imm = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE); 141 | //Find the currently focused view, so we can grab the correct window token from it. 142 | View view = getCurrentFocus(); 143 | //If no view currently has focus, create a new one, just so we can grab a window token from it 144 | if (view == null) { 145 | view = new View(this); 146 | } 147 | imm.hideSoftInputFromWindow(view.getWindowToken(), 0); 148 | } 149 | } 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | -------------------------------------------------------------------------------- /app/src/main/java/com/codingwithmitch/retrofitcaching/MyApplication.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import android.app.Application; 4 | import android.content.Context; 5 | import android.net.ConnectivityManager; 6 | import android.net.NetworkInfo; 7 | 8 | public class MyApplication extends Application { 9 | 10 | private static MyApplication instance; 11 | 12 | @Override 13 | public void onCreate() { 14 | super.onCreate(); 15 | 16 | if(instance == null){ 17 | instance = this; 18 | } 19 | } 20 | 21 | public static MyApplication getInstance(){ 22 | return instance; 23 | } 24 | 25 | public static boolean hasNetwork(){ 26 | return instance.isNetworkConnected(); 27 | } 28 | 29 | private boolean isNetworkConnected(){ 30 | ConnectivityManager cm = 31 | (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); 32 | 33 | NetworkInfo activeNetwork = cm.getActiveNetworkInfo(); 34 | return activeNetwork != null && 35 | activeNetwork.isConnectedOrConnecting(); 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /app/src/main/java/com/codingwithmitch/retrofitcaching/Photo.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import com.google.gson.annotations.Expose; 4 | import com.google.gson.annotations.SerializedName; 5 | 6 | public class Photo { 7 | 8 | @SerializedName("albumId") 9 | @Expose 10 | private int albumId; 11 | 12 | @SerializedName("id") 13 | @Expose 14 | private int id; 15 | 16 | @SerializedName("title") 17 | @Expose 18 | private String title; 19 | 20 | @SerializedName("url") 21 | @Expose 22 | private String url; 23 | 24 | 25 | public Photo(int albumId, int id, String title, String url) { 26 | this.albumId = albumId; 27 | this.id = id; 28 | this.title = title; 29 | this.url = url; 30 | } 31 | 32 | public Photo() { 33 | } 34 | 35 | public int getAlbumId() { 36 | return albumId; 37 | } 38 | 39 | public void setAlbumId(int albumId) { 40 | this.albumId = albumId; 41 | } 42 | 43 | public int getId() { 44 | return id; 45 | } 46 | 47 | public void setId(int id) { 48 | this.id = id; 49 | } 50 | 51 | public String getTitle() { 52 | return title; 53 | } 54 | 55 | public void setTitle(String title) { 56 | this.title = title; 57 | } 58 | 59 | public String getUrl() { 60 | return url; 61 | } 62 | 63 | public void setUrl(String url) { 64 | this.url = url; 65 | } 66 | } 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | -------------------------------------------------------------------------------- /app/src/main/java/com/codingwithmitch/retrofitcaching/RecyclerAdapter.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import android.view.LayoutInflater; 4 | import android.view.View; 5 | import android.view.ViewGroup; 6 | import android.widget.ImageView; 7 | import android.widget.TextView; 8 | 9 | import com.bumptech.glide.RequestManager; 10 | 11 | import java.util.ArrayList; 12 | import java.util.List; 13 | 14 | import androidx.annotation.NonNull; 15 | import androidx.recyclerview.widget.RecyclerView; 16 | 17 | public class RecyclerAdapter extends RecyclerView.Adapter { 18 | 19 | private RequestManager requestManager; 20 | private List photos = new ArrayList<>(); 21 | 22 | public RecyclerAdapter(RequestManager requestManager) { 23 | this.requestManager = requestManager; 24 | } 25 | 26 | @NonNull 27 | @Override 28 | public PhotosViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { 29 | View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_photo_list_item, parent, false); 30 | return new PhotosViewHolder(view, requestManager); 31 | } 32 | 33 | @Override 34 | public void onBindViewHolder(@NonNull PhotosViewHolder holder, int position) { 35 | holder.bind(photos.get(position)); 36 | } 37 | 38 | @Override 39 | public int getItemCount() { 40 | return photos.size(); 41 | } 42 | 43 | public void setPhotos(List photos){ 44 | this.photos = photos; 45 | notifyDataSetChanged(); 46 | } 47 | 48 | public class PhotosViewHolder extends RecyclerView.ViewHolder{ 49 | 50 | private RequestManager requestManager; 51 | private ImageView image; 52 | private TextView title; 53 | 54 | public PhotosViewHolder(@NonNull View itemView, RequestManager requestManager) { 55 | super(itemView); 56 | image = itemView.findViewById(R.id.image); 57 | title = itemView.findViewById(R.id.title); 58 | this.requestManager = requestManager; 59 | } 60 | 61 | public void bind(Photo photo){ 62 | requestManager 63 | .load(photo.getUrl()) 64 | .into(image); 65 | title.setText(photo.getTitle()); 66 | } 67 | } 68 | 69 | } 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | -------------------------------------------------------------------------------- /app/src/main/java/com/codingwithmitch/retrofitcaching/ServiceGenerator.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import android.util.Log; 4 | 5 | import java.io.File; 6 | import java.io.IOException; 7 | import java.util.concurrent.TimeUnit; 8 | 9 | import okhttp3.Cache; 10 | import okhttp3.CacheControl; 11 | import okhttp3.Interceptor; 12 | import okhttp3.OkHttpClient; 13 | import okhttp3.Request; 14 | import okhttp3.Response; 15 | import okhttp3.logging.HttpLoggingInterceptor; 16 | import retrofit2.Retrofit; 17 | import retrofit2.converter.gson.GsonConverterFactory; 18 | 19 | 20 | public class ServiceGenerator { 21 | 22 | private static final String TAG = "ServiceGenerator"; 23 | private static final String BASE_URL = "https://jsonplaceholder.typicode.com"; 24 | public static final String HEADER_CACHE_CONTROL = "Cache-Control"; 25 | public static final String HEADER_PRAGMA = "Pragma"; 26 | 27 | private static ServiceGenerator instance; 28 | 29 | public static ServiceGenerator getInstance(){ 30 | if(instance == null){ 31 | instance = new ServiceGenerator(); 32 | } 33 | return instance; 34 | } 35 | 36 | private static final long cacheSize = 5 * 1024 * 1024; // 5 MB 37 | 38 | 39 | private static Retrofit retrofit(){ 40 | return new Retrofit.Builder() 41 | .baseUrl(BASE_URL) 42 | .client(okHttpClient()) 43 | .addConverterFactory(GsonConverterFactory.create()) 44 | .build(); 45 | } 46 | 47 | private static OkHttpClient okHttpClient(){ 48 | return new OkHttpClient.Builder() 49 | .cache(cache()) 50 | .addInterceptor(httpLoggingInterceptor()) // used if network off OR on 51 | .addNetworkInterceptor(networkInterceptor()) // only used when network is on 52 | .addInterceptor(offlineInterceptor()) 53 | .build(); 54 | } 55 | 56 | private static Cache cache(){ 57 | return new Cache(new File(MyApplication.getInstance().getCacheDir(),"someIdentifier"), cacheSize); 58 | } 59 | 60 | /** 61 | * This interceptor will be called both if the network is available and if the network is not available 62 | * @return 63 | */ 64 | private static Interceptor offlineInterceptor() { 65 | return new Interceptor() { 66 | @Override 67 | public Response intercept(Chain chain) throws IOException { 68 | Log.d(TAG, "offline interceptor: called."); 69 | Request request = chain.request(); 70 | 71 | // prevent caching when network is on. For that we use the "networkInterceptor" 72 | if (!MyApplication.hasNetwork()) { 73 | CacheControl cacheControl = new CacheControl.Builder() 74 | .maxStale(7, TimeUnit.DAYS) 75 | .build(); 76 | 77 | request = request.newBuilder() 78 | .removeHeader(HEADER_PRAGMA) 79 | .removeHeader(HEADER_CACHE_CONTROL) 80 | .cacheControl(cacheControl) 81 | .build(); 82 | } 83 | 84 | return chain.proceed(request); 85 | } 86 | }; 87 | } 88 | 89 | /** 90 | * This interceptor will be called ONLY if the network is available 91 | * @return 92 | */ 93 | private static Interceptor networkInterceptor() { 94 | return new Interceptor() { 95 | @Override 96 | public Response intercept(Chain chain) throws IOException { 97 | Log.d(TAG, "network interceptor: called."); 98 | 99 | Response response = chain.proceed(chain.request()); 100 | 101 | CacheControl cacheControl = new CacheControl.Builder() 102 | .maxAge(5, TimeUnit.SECONDS) 103 | .build(); 104 | 105 | return response.newBuilder() 106 | .removeHeader(HEADER_PRAGMA) 107 | .removeHeader(HEADER_CACHE_CONTROL) 108 | .header(HEADER_CACHE_CONTROL, cacheControl.toString()) 109 | .build(); 110 | } 111 | }; 112 | } 113 | 114 | private static HttpLoggingInterceptor httpLoggingInterceptor () 115 | { 116 | HttpLoggingInterceptor httpLoggingInterceptor = 117 | new HttpLoggingInterceptor( new HttpLoggingInterceptor.Logger() 118 | { 119 | @Override 120 | public void log (String message) 121 | { 122 | Log.d(TAG, "log: http log: " + message); 123 | } 124 | } ); 125 | httpLoggingInterceptor.setLevel( HttpLoggingInterceptor.Level.BODY); 126 | return httpLoggingInterceptor; 127 | } 128 | 129 | public static Api getApi(){ 130 | return retrofit().create(Api.class); 131 | } 132 | 133 | } 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | -------------------------------------------------------------------------------- /app/src/main/java/com/codingwithmitch/retrofitcaching/VerticalSpacingItemDecorator.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import android.graphics.Rect; 4 | 5 | import android.view.View; 6 | 7 | import androidx.annotation.NonNull; 8 | import androidx.recyclerview.widget.RecyclerView; 9 | 10 | public class VerticalSpacingItemDecorator extends RecyclerView.ItemDecoration { 11 | 12 | private final int verticalSpaceHeight; 13 | 14 | public VerticalSpacingItemDecorator(int verticalSpaceHeight) { 15 | this.verticalSpaceHeight = verticalSpaceHeight; 16 | } 17 | 18 | @Override 19 | public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) { 20 | 21 | outRect.top = verticalSpaceHeight; 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/white_background.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mitchtabian/Retrofit-Caching-Example/540de12c4e44e89bb6e82a98e48a4157c719ff56/app/src/main/res/drawable/white_background.png 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https://raw.githubusercontent.com/mitchtabian/Retrofit-Caching-Example/540de12c4e44e89bb6e82a98e48a4157c719ff56/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #fff 4 | #b3b3b3 5 | #FF4081 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | RetrofitCaching 3 | 4 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/test/java/com/codingwithmitch/retrofitcaching/ExampleUnitTest.java: -------------------------------------------------------------------------------- 1 | package com.codingwithmitch.retrofitcaching; 2 | 3 | import org.junit.Test; 4 | 5 | import static org.junit.Assert.*; 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see Testing documentation 11 | */ 12 | public class ExampleUnitTest { 13 | @Test 14 | public void addition_isCorrect() { 15 | assertEquals(4, 2 + 2); 16 | } 17 | } -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | google() 6 | jcenter() 7 | 8 | } 9 | dependencies { 10 | classpath 'com.android.tools.build:gradle:3.3.0' 11 | 12 | // NOTE: Do not place your application dependencies here; they belong 13 | // in the individual module build.gradle files 14 | } 15 | } 16 | 17 | allprojects { 18 | repositories { 19 | google() 20 | jcenter() 21 | 22 | } 23 | } 24 | 25 | task clean(type: Delete) { 26 | delete rootProject.buildDir 27 | } 28 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | # IDE (e.g. Android Studio) users: 3 | # Gradle settings configured through the IDE *will override* 4 | # any settings specified in this file. 5 | # For more details on how to configure your build environment visit 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html 7 | # Specifies the JVM arguments used for the daemon process. 8 | # The setting is particularly useful for tweaking memory settings. 9 | org.gradle.jvmargs=-Xmx1536m 10 | # When configured, Gradle will run in incubating parallel mode. 11 | # This option should only be used with decoupled projects. More details, visit 12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 13 | # org.gradle.parallel=true 14 | # AndroidX package structure to make it clearer which packages are bundled with the 15 | # Android operating system, and which are packaged with your app's APK 16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn 17 | android.useAndroidX=true 18 | # Automatically convert third-party libraries to use AndroidX 19 | android.enableJetifier=true 20 | 21 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mitchtabian/Retrofit-Caching-Example/540de12c4e44e89bb6e82a98e48a4157c719ff56/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Thu Apr 11 08:23:37 PDT 2019 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | --------------------------------------------------------------------------------