v1,0: Initial commit. Starter code for Jetpack-MVVM codelab

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

app/.gitignore

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+/build

app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+}
+
+android {
+    compileSdk 31
+    buildToolsVersion "30.0.3"
+
+    defaultConfig {
+        applicationId "com.example.vinyls_jetpack_application"
+        minSdk 21
+        targetSdk 31
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    buildFeatures {
+        viewBinding true
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.core:core-ktx:1.3.2'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.3.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.3.5'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.3.5'
+    // Network invocations lib
+    implementation 'com.android.volley:volley:1.1.1'
+
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+}

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/example/vinyls_jetpack_application/ExampleInstrumentedTest.kt

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+package com.example.vinyls_jetpack_application
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.vinyls_jetpack_application", appContext.packageName)
+    }
+}

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.vinyls_jetpack_application">
+
+    <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/Theme.Vinyls_Jetpack_Application">
+        <activity
+            android:name=".ui.MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.Vinyls_Jetpack_Application.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/com/example/vinyls_jetpack_application/network/NetworkServiceAdapter.kt

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+package com.example.vinyls_jetpack_application.network
+
+import android.content.Context
+import android.util.Log
+import com.android.volley.Request
+import com.android.volley.RequestQueue
+import com.android.volley.Response
+import com.android.volley.VolleyError
+import com.android.volley.toolbox.JsonObjectRequest
+import com.android.volley.toolbox.StringRequest
+import com.android.volley.toolbox.Volley
+import org.json.JSONArray
+import org.json.JSONObject
+import java.awt.font.NumericShaper
+
+class NetworkServiceAdapter constructor(context: Context) {
+    companion object{
+        const val BASE_URL= "https://back-vinyls-populated.herokuapp.com/"
+        var instance: NetworkServiceAdapter? = null
+        fun getInstance(context: Context) =
+            instance ?: synchronized(this) {
+                instance ?: NetworkServiceAdapter(context).also {
+                    instance = it
+                }
+            }
+    }
+    private val requestQueue: RequestQueue by lazy {
+        // applicationContext keeps you from leaking the Activity or BroadcastReceiver if someone passes one in.
+        Volley.newRequestQueue(context.applicationContext)
+    }
+    fun getAlbums( onComplete:(resp:List<Album>)->Unit , onError: (error:VolleyError)->Unit){
+        requestQueue.add(getRequest("albums",
+            Response.Listener<String> { response ->
+                val resp = JSONArray(response)
+                val list = mutableListOf<Album>()
+                for (i in 0 until resp.length()) {
+                    val item = resp.getJSONObject(i)
+                    list.add(i, Album(albumId = item.getInt("id"),name = item.getString("name"), cover = item.getString("cover"), recordLabel = item.getString("recordLabel"), releaseDate = item.getString("releaseDate"), genre = item.getString("genre"), description = item.getString("description")))
+                }
+                onComplete(list)
+            },
+            Response.ErrorListener {
+                onError(it)
+            }))
+    }
+    fun getCollectors(  onComplete:(resp:List<Collector>)->Unit , onError: (error:VolleyError)->Unit) {
+        requestQueue.add(getRequest("collectors",
+            Response.Listener<String> { response ->
+                Log.d("tagb", response)
+                val resp = JSONArray(response)
+                val list = mutableListOf<Collector>()
+                for (i in 0 until resp.length()) {
+                    val item = resp.getJSONObject(i)
+                    list.add(i, Collector(collectorId = item.getInt("id"),name = item.getString("name"), telephone = item.getString("telephone"), email = item.getString("email")))
+                }
+                onComplete(list)
+            },
+            Response.ErrorListener {
+                onError(it)
+            }))
+    }
+    fun getComments( albumId:Int, onComplete:(resp:List<Comment>)->Unit , onError: (error:VolleyError)->Unit) {
+        requestQueue.add(getRequest("albums/$albumId/comments",
+            Response.Listener<String> { response ->
+                val resp = JSONArray(response)
+                val list = mutableListOf<Comment>()
+                var item:JSONObject? = null
+                for (i in 0 until resp.length()) {
+                    item = resp.getJSONObject(i)
+                    Log.d("Response", item.toString())
+                    list.add(i, Comment(albumId = albumId, rating = item.getInt("rating").toString(), description = item.getString("description")))
+                }
+                onComplete(list)
+            },
+            Response.ErrorListener {
+                onError(it)
+            }))
+    }
+    fun postComment(body: JSONObject, albumId: Int,  onComplete:(resp:JSONObject)->Unit , onError: (error:VolleyError)->Unit){
+        requestQueue.add(postRequest("albums/$albumId/comments",
+            body,
+            Response.Listener<JSONObject> { response ->
+                onComplete(response)
+            },
+            Response.ErrorListener {
+                onError(it)
+            }))
+    }
+    private fun getRequest(path:String, responseListener: Response.Listener<String>, errorListener: Response.ErrorListener): StringRequest {
+        return StringRequest(Request.Method.GET, BASE_URL+path, responseListener,errorListener)
+    }
+    private fun postRequest(path: String, body: JSONObject,  responseListener: Response.Listener<JSONObject>, errorListener: Response.ErrorListener ):JsonObjectRequest{
+        return  JsonObjectRequest(Request.Method.POST, BASE_URL+path, body, responseListener, errorListener)
+    }
+    private fun putRequest(path: String, body: JSONObject,  responseListener: Response.Listener<JSONObject>, errorListener: Response.ErrorListener ):JsonObjectRequest{
+        return  JsonObjectRequest(Request.Method.PUT, BASE_URL+path, body, responseListener, errorListener)
+    }
+}

app/src/main/java/com/example/vinyls_jetpack_application/ui/AlbumFragment.kt

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+package com.example.vinyls_jetpack_application.ui
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.navigation.fragment.findNavController
+import com.example.vinyls_jetpack_application.R
+
+/**
+ * A simple [Fragment] subclass as the second destination in the navigation.
+ */
+class AlbumFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return null
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+    }
+
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        val activity = requireNotNull(this.activity) {
+            "You can only access the viewModel after onActivityCreated()"
+        }
+        activity.actionBar?.title = getString(R.string.title_albums)
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+    }
+
+    private fun onNetworkError() {
+
+    }
+}

app/src/main/java/com/example/vinyls_jetpack_application/ui/CollectorFragment.kt

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+package com.example.vinyls_jetpack_application.ui
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.example.vinyls_jetpack_application.R
+
+/**
+ * A simple [Fragment] subclass as the default destination in the navigation.
+ */
+class CollectorFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return null
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        val activity = requireNotNull(this.activity) {
+            "You can only access the viewModel after onActivityCreated()"
+        }
+        activity.actionBar?.title = getString(R.string.title_collectors)
+    }
+    override fun onDestroyView() {
+        super.onDestroyView()
+    }
+
+    private fun onNetworkError() {
+    }
+}

app/src/main/java/com/example/vinyls_jetpack_application/ui/CommentFragment.kt

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+package com.example.vinyls_jetpack_application.ui
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.example.vinyls_jetpack_application.R
+
+class CommentFragment: Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return view
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        val activity = requireNotNull(this.activity) {
+            "You can only access the viewModel after onActivityCreated()"
+        }
+        activity.actionBar?.title = getString(R.string.title_comments)
+    }
+
+
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        activity?.actionBar?.title = getString(R.string.title_comments)
+    }
+    override fun onDestroyView() {
+        super.onDestroyView()
+    }
+
+    private fun onNetworkError() {
+    }
+
+}