Merge pull request #6 from Urdzik/dagger2-branch-activity

Added dagger 2 and new caching system

README.md

@@ -1 +1,59 @@
-# MovieApp
+![MovieApp](/readme/Photo%20for%20github.png?raw=true)
+
+
+[![Kotlin](https://img.shields.io/badge/Kotlin-1.3.61-blue.svg)](https://kotlinlang.org)
+[![Dagger2](https://img.shields.io/badge/Dagger%202-2.26-red.svg)](https://github.com/google/dagger)
+[![Material design](https://img.shields.io/badge/Material%20Design-1.2.0--alpha%205-%237464f2)](https://material.io)
+
+<h3 size="1">Application which retrieves data from Webserver (via Retrofit), saves it into Room and get from it if user is offline. There are applying MVVM architecture pattern and Dagger 2 example.</h3><br/>
+
+<font size="6">Overview:</font><br/>
+=======================================================
+
+
+* ### __Model__
+   Model is implemented as Repository pattern. Firstly it begins from internet connection checking. Consequently if it's alive we're retrieving data from the server (by using Retrofit 2) and inserting into the SQLite database. Otherwise we're trying to fetch data from the SQLite itself.
+* ### __View__
+     View is realised as 2 fragments. First one contains RecyclerView, second one depends on clicks on recycler-items and finally displays detailed data fetched from the Model. It implements state saving reflected on configuration changes.
+    <br/><br/>
+
+    <div align = "center">
+     <img src = "readme/Screenshot_1582798408_framed.png?raw=true" width="330">
+     <img src = "readme/Screenshot_1582798427_framed.png?raw=true" width="330">
+    </div>
+
+*  ### __ViewModel__
+   ViewModel is responsible for transferring data between view and model.
+* ### __Dagger 2__
+    – Implementation of dependency injection for communication between app modules<br/>
+    – AndroidInjector applying for injecting into View components<br/>
+    – Unit-testing simplifying
+    <br/><br/>
+
+
+<font size="6">Applied technologies and libraries:</font><br/>
+=======================================================
+
+* ### __Model__
+   * __Retrofit 2__ <br/>
+     – getting data from server into pojo-classes
+
+   * __SQLite__ <br/>
+       – storing data fetched from server. User get data here if he is offline
+
+   * __Coroutines__ <br/>
+      – managing asynchronous database and network queries<br/>
+      – using instead of callbacks<br/>
+      – providing light asynchronous operations
+
+* ### __ViewModel__
+   * __LiveData__ <br/>
+      – observer-pattern implementation for View interaction
+
+* ### __View__
+   * __Fragments__ <br/>
+     – interactive displaying and click reflecting
+
+  *  __Data Binding__ <br/>
+    – replace basic operations with UI (e.g. findViewById() ) to the XML
+

app/build.gradle

@@ -6,7 +6,7 @@ apply plugin: 'kotlin-android-extensions'
 
 android {
     compileSdkVersion 29
-    buildToolsVersion "29.0.2"
+    buildToolsVersion "29.0.3"
     defaultConfig {
         applicationId "com.example.movieapp"
         minSdkVersion 21
@@ -26,6 +26,12 @@ android {
     dataBinding {
         enabled = true
     }
+    android {
+        compileOptions {
+            sourceCompatibility JavaVersion.VERSION_1_8
+            targetCompatibility JavaVersion.VERSION_1_8
+        }
+    }
 }
 
 dependencies {
@@ -35,11 +41,11 @@ dependencies {
     // support libraries
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
-    implementation 'com.google.android.material:material:1.2.0-alpha04'
+    implementation 'com.google.android.material:material:1.2.0-alpha05'
 
 
     // Android KTX
-    implementation 'androidx.core:core-ktx:1.1.0'
+    implementation 'androidx.core:core-ktx:1.2.0'
 
     // constraint layout
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
@@ -49,14 +55,20 @@ dependencies {
     implementation "android.arch.navigation:navigation-ui-ktx:1.0.0"
 
     // coroutines for getting off the UI thread
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.2"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.3"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.2"
 
 
     // retrofit for networking
-    implementation 'com.squareup.retrofit2:retrofit:2.6.0'
+    implementation 'com.squareup.retrofit2:retrofit:2.7.1'
     implementation 'com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter:0.9.2'
     implementation 'com.squareup.retrofit2:converter-moshi:2.6.0'
+    implementation "com.squareup.retrofit2:converter-gson:2.7.1"
+
+    //OkHTTP
+    implementation"com.squareup.okhttp3:okhttp:4.4.0"
+    implementation "com.squareup.okhttp3:logging-interceptor:4.4.0"
+    implementation 'com.google.code.gson:gson:2.8.5'
 
     // moshi for parsing the JSON format
     def moshi_version = "1.6.0"
@@ -76,8 +88,16 @@ dependencies {
     kapt 'com.github.bumptech.glide:compiler:4.11.0'
 
     //Database
-    def room_version = "2.2.0"
+    def room_version = "2.2.4"
     implementation "androidx.room:room-runtime:$room_version"
     kapt "androidx.room:room-compiler:$room_version"
 
+    //Dagger 2
+    def dagger_version = "2.25.4"
+    implementation "com.google.dagger:dagger:$dagger_version"
+    implementation "com.google.dagger:dagger-android:$dagger_version"
+    implementation "com.google.dagger:dagger-android-support:$dagger_version"
+    kapt "com.google.dagger:dagger-compiler:$dagger_version"
+    kapt "com.google.dagger:dagger-android-processor:$dagger_version"
+
 }

app/src/main/AndroidManifest.xml

@@ -5,6 +5,7 @@
     <uses-permission android:name="android.permission.INTERNET"/>
 
     <application
+        android:name=".dagger.App"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
@@ -18,6 +19,8 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".ui.detail.DetailActivity"/>
+
     </application>
 
 </manifest>

app/src/main/java/com/example/movieapp/dagger/App.kt

@@ -0,0 +1,23 @@
+package com.example.movieapp.dagger
+
+import android.app.Application
+import com.example.movieapp.dagger.component.AppComponent
+import com.example.movieapp.dagger.component.DaggerAppComponent
+import com.example.movieapp.dagger.module.NetworkModule
+import com.example.movieapp.ui.detail.DetailActivity
+
+
+class App : Application(){
+    companion object{
+        lateinit var appComponent: AppComponent
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        appComponent = DaggerAppComponent
+            .builder()
+            .networkModule(NetworkModule(this))
+            .build()
+    }
+
+}

app/src/main/java/com/example/movieapp/dagger/component/AppComponent.kt

@@ -0,0 +1,16 @@
+package com.example.movieapp.dagger.component
+
+
+import com.example.movieapp.dagger.module.NetworkModule
+import com.example.movieapp.dagger.module.viewModule.ViewModelModule
+import com.example.movieapp.ui.detail.DetailActivity
+import com.example.movieapp.ui.overview.OverviewFragment
+import dagger.Component
+import javax.inject.Singleton
+
+@Singleton
+@Component(modules = [NetworkModule::class, ViewModelModule::class])
+interface AppComponent{
+    fun inject(overviewFragment: OverviewFragment)
+    fun inject(detailActivity: DetailActivity)
+}