- lint checks done

- added service intent

Took 1 hour 7 minutes

app/src/main/java/com/appttude/h_mal/easycc/application/AppClass.kt

@@ -22,7 +22,7 @@ import org.kodein.di.generic.singleton
 
 class AppClass : Application(), KodeinAware {
 
-    // Kodein Dependecy Injection singletons and providers created
+    // KODEIN DI components declaration
     override val kodein by Kodein.lazy {
         import(androidXModule(this@AppClass))
 

app/src/main/java/com/appttude/h_mal/easycc/data/network/SafeApiRequest.kt

@@ -1,6 +1,5 @@
 package com.appttude.h_mal.easycc.data.network
 
-import android.util.Log
 import org.json.JSONException
 import org.json.JSONObject
 import retrofit2.Response
@@ -10,7 +9,6 @@ import java.io.IOException
  * This abstract class extract objects from Retrofit [Response]
  * or throws IOException if object does not exist
  */
-private const val TAG = "SafeApiRequest"
 abstract class SafeApiRequest {
 
     suspend fun <T : Any> responseUnwrap(
@@ -45,10 +43,6 @@ abstract class SafeApiRequest {
         }
         print(log)
 
-//        Log.e("Api Response Error", log)
-
-        //return error message
-        //if null return error code
         return errorMessageString ?: errorCode
     }
 

app/src/main/java/com/appttude/h_mal/easycc/data/network/api/BackupCurrencyApi.kt

@@ -11,18 +11,16 @@ import retrofit2.http.GET
 import retrofit2.http.Query
 
 /**
- * Retrofit2 Network class to create network requests
+ * Retrofit Network class to currency api calls
  */
 interface BackupCurrencyApi {
 
-    // Get rate from server with arguments passed in Repository
     @GET("latest?")
     suspend fun getCurrencyRate(
         @Query("from") currencyFrom: String,
         @Query("to") currencyTo: String
     ): Response<CurrencyResponse>
 
-    // interface invokation to be used in application class
     companion object {
         operator fun invoke(
             networkConnectionInterceptor: NetworkConnectionInterceptor,
@@ -34,7 +32,6 @@ interface BackupCurrencyApi {
                 .addNetworkInterceptor(networkConnectionInterceptor)
                 .build()
 
-            // Build retrofit
             return Retrofit.Builder()
                 .client(okkHttpclient)
                 .baseUrl("https://api.frankfurter.app/")
@@ -44,6 +41,4 @@ interface BackupCurrencyApi {
         }
     }
 
-
-
 }

app/src/main/java/com/appttude/h_mal/easycc/data/network/api/CurrencyApi.kt

@@ -12,7 +12,7 @@ import retrofit2.http.GET
 import retrofit2.http.Query
 
 /**
- * Retrofit2 Network class to create network requests
+ * Retrofit Network class to currency api calls
  */
 interface CurrencyApi {
 
@@ -28,14 +28,12 @@ interface CurrencyApi {
             interceptor: HttpLoggingInterceptor
         ): CurrencyApi {
 
-            // okkHttpclient with injected interceptors
             val okkHttpclient = OkHttpClient.Builder()
                 .addInterceptor(interceptor)
                 .addInterceptor(queryInterceptor)
                 .addNetworkInterceptor(networkConnectionInterceptor)
                 .build()
 
-            // Build retrofit
             return Retrofit.Builder()
                 .client(okkHttpclient)
                 .baseUrl("https://free.currencyconverterapi.com/api/v3/")

app/src/main/java/com/appttude/h_mal/easycc/data/network/interceptors/NetworkConnectionInterceptor.kt

@@ -3,14 +3,17 @@ package com.appttude.h_mal.easycc.data.network.interceptors
 import android.content.Context
 import android.net.ConnectivityManager
 import android.net.NetworkCapabilities
+import android.os.Build
+import androidx.annotation.RequiresApi
 import okhttp3.Interceptor
 import okhttp3.Response
 import java.io.IOException
 
 /**
- * Interceptor used in [CurrencyApi] to intercept network status
+ * Interceptor used in network classes to check network status
  *
  */
+@Suppress("DEPRECATION")
 class NetworkConnectionInterceptor(
     context: Context
 ) : Interceptor {
@@ -29,6 +32,7 @@ class NetworkConnectionInterceptor(
         val connectivityManager =
             applicationContext.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager?
         connectivityManager?.let {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                 it.getNetworkCapabilities(connectivityManager.activeNetwork)?.apply {
                     result = when {
                         hasTransport(NetworkCapabilities.TRANSPORT_WIFI) -> true
@@ -36,6 +40,16 @@ class NetworkConnectionInterceptor(
                         else -> false
                     }
                 }
+            } else {
+                it.activeNetworkInfo?.run {
+                    result = when (type) {
+                        ConnectivityManager.TYPE_WIFI -> true
+                        ConnectivityManager.TYPE_MOBILE -> true
+                        ConnectivityManager.TYPE_ETHERNET -> true
+                        else -> false
+                    }
+                }
+            }
         }
         return result
     }

app/src/main/java/com/appttude/h_mal/easycc/data/network/interceptors/QueryInterceptor.kt

@@ -1,7 +1,6 @@
 package com.appttude.h_mal.easycc.data.network.interceptors
 
 import android.content.Context
-import com.appttude.h_mal.easycc.BuildConfig
 import com.appttude.h_mal.easycc.R
 import okhttp3.HttpUrl
 import okhttp3.Interceptor

app/src/main/java/com/appttude/h_mal/easycc/data/prefs/PreferenceProvider.kt

@@ -18,8 +18,8 @@ class PreferenceProvider(context: Context) {
     private val appContext = context.applicationContext
 
     // Instance of Shared preferences
-    private val preference: SharedPreferences
+    private val preference: SharedPreferences =
-        = PreferenceManager.getDefaultSharedPreferences(appContext)
+        PreferenceManager.getDefaultSharedPreferences(appContext)
 
     // Lazy declaration of default rate if no rate is retrieved from
     private val defaultRate: String by lazy {
@@ -50,8 +50,10 @@ class PreferenceProvider(context: Context) {
     }
 
     // Save currency pairs for widget
-    fun saveWidgetConversionPair(fromString: String,
+    fun saveWidgetConversionPair(
-                                 toString: String, appWidgetId: Int) {
+        fromString: String,
+        toString: String, appWidgetId: Int
+    ) {
 
         preference.edit()
             .putString("${appWidgetId}_$CURRENCY_ONE", fromString)
@@ -68,7 +70,8 @@ class PreferenceProvider(context: Context) {
     }
 
     private fun getWidgetConversionString(
-            appWidgetId: Int, conversionName: String): String? {
+        appWidgetId: Int, conversionName: String
+    ): String? {
         return preference
             .getString("${appWidgetId}_$conversionName", defaultRate)
     }
@@ -78,7 +81,6 @@ class PreferenceProvider(context: Context) {
             .remove("${id}_$CURRENCY_ONE")
             .remove("${id}_$CURRENCY_TWO")
             .apply()
-
     }
 
 }

app/src/main/java/com/appttude/h_mal/easycc/data/repository/RepositoryImpl.kt

@@ -49,8 +49,10 @@ class RepositoryImpl (
     override fun getWidgetConversionPairs(appWidgetId: Int): Pair<String?, String?> =
         prefs.getWidgetConversionPair(appWidgetId)
 
-    override fun setWidgetConversionPairs(fromCurrency: String,
+    override fun setWidgetConversionPairs(
-            toCurrency: String, appWidgetId: Int) {
+        fromCurrency: String,
+        toCurrency: String, appWidgetId: Int
+    ) {
         return prefs.saveWidgetConversionPair(fromCurrency, toCurrency, appWidgetId)
     }
 

app/src/main/java/com/appttude/h_mal/easycc/helper/CurrencyDataHelper.kt

@@ -2,7 +2,6 @@ package com.appttude.h_mal.easycc.helper
 
 import com.appttude.h_mal.easycc.data.repository.Repository
 import com.appttude.h_mal.easycc.models.CurrencyModelInterface
-import java.lang.Exception
 
 class CurrencyDataHelper(
     val repository: Repository

app/src/main/java/com/appttude/h_mal/easycc/helper/WidgetHelper.kt

@@ -4,10 +4,8 @@ import com.appttude.h_mal.easycc.data.repository.Repository
 import com.appttude.h_mal.easycc.models.CurrencyModel
 import com.appttude.h_mal.easycc.utils.trimToThree
 
-import kotlin.Exception
-
 class WidgetHelper(
-    val helper: CurrencyDataHelper,
+    private val helper: CurrencyDataHelper,
     val repository: Repository
 ) {
 

app/src/main/java/com/appttude/h_mal/easycc/ui/main/CustomDialogClass.kt

@@ -13,6 +13,7 @@ import kotlinx.android.synthetic.main.custom_dialog.*
 /**
  * Custom dialog when selecting currencies from list with filter
  */
+@Suppress("DEPRECATION")
 class CustomDialogClass(
     context: Context,
     private val clickListener: ClickListener
@@ -31,7 +32,8 @@ class CustomDialogClass(
         val arrayAdapter =
             ArrayAdapter.createFromResource(
                 context, R.array.currency_arrays,
-                        android.R.layout.simple_list_item_1)
+                android.R.layout.simple_list_item_1
+            )
 
         list_view.adapter = arrayAdapter
 
@@ -41,6 +43,7 @@ class CustomDialogClass(
             override fun onTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {
                 arrayAdapter.filter.filter(charSequence)
             }
+
             override fun afterTextChanged(editable: Editable) {}
         })
 

app/src/main/java/com/appttude/h_mal/easycc/ui/main/MainActivity.kt

@@ -20,6 +20,7 @@ import org.kodein.di.KodeinAware
 import org.kodein.di.android.kodein
 import org.kodein.di.generic.instance
 
+@Suppress("DEPRECATION")
 class MainActivity : AppCompatActivity(), KodeinAware, View.OnClickListener {
 
     // Retrieve MainViewModelFactory via dependency injection
@@ -54,10 +55,10 @@ class MainActivity : AppCompatActivity(), KodeinAware, View.OnClickListener {
     }
 
     private fun setUpObservers() {
-        viewModel.operationStartedListener.observe(this, Observer {
+        viewModel.operationStartedListener.observe(this, {
             progressBar.hideView(false)
         })
-        viewModel.operationFinishedListener.observe(this, Observer { pair ->
+        viewModel.operationFinishedListener.observe(this, { pair ->
             // hide progress bar
             progressBar.hideView(true)
             if (pair.first) {

app/src/main/java/com/appttude/h_mal/easycc/ui/main/MainViewModel.kt

@@ -98,7 +98,9 @@ class MainViewModel(
         when (tag.toString()) {
             "top" -> rateIdFrom = currencyName
             "bottom" -> rateIdTo = currencyName
-            else -> { return }
+            else -> {
+                return
+            }
         }
 
         getExchangeRate()

app/src/main/java/com/appttude/h_mal/easycc/ui/widget/CurrencyAppWidgetConfigureActivityKotlin.kt

@@ -25,7 +25,8 @@ import org.kodein.di.generic.instance
 /**
  * The configuration screen for the [CurrencyAppWidgetKotlin] AppWidget.
  */
-class CurrencyAppWidgetConfigureActivityKotlin : AppCompatActivity(), KodeinAware, View.OnClickListener {
+class CurrencyAppWidgetConfigureActivityKotlin : AppCompatActivity(), KodeinAware,
+    View.OnClickListener {
 
     override val kodein by kodein()
     private val factory: WidgetViewModelFactory by instance()
@@ -47,7 +48,8 @@ class CurrencyAppWidgetConfigureActivityKotlin : AppCompatActivity(), KodeinAwar
         val extras = intent.extras
         if (extras != null) {
             mAppWidgetId = extras.getInt(
-                    AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID)
+                AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID
+            )
         }
 
         // If this activity was started with an intent without an app widget ID, finish with an error.
@@ -72,7 +74,7 @@ class CurrencyAppWidgetConfigureActivityKotlin : AppCompatActivity(), KodeinAwar
     }
 
     private fun setupObserver() {
-        viewModel.operationFinishedListener.observe(this, Observer {
+        viewModel.operationFinishedListener.observe(this, {
 
             // it.first is a the success of the operation
             if (it.first) {
@@ -136,7 +138,8 @@ class CurrencyAppWidgetConfigureActivityKotlin : AppCompatActivity(), KodeinAwar
     fun sendUpdateIntent() {
         // It is the responsibility of the configuration activity to update the app widget
         // Send update broadcast to widget app class
-        Intent(this@CurrencyAppWidgetConfigureActivityKotlin,
+        Intent(
+            this@CurrencyAppWidgetConfigureActivityKotlin,
             CurrencyAppWidgetKotlin::class.java
         ).apply {
             action = AppWidgetManager.ACTION_APPWIDGET_UPDATE

app/src/main/java/com/appttude/h_mal/easycc/ui/widget/WidgetItemSelectDialog.kt

@@ -1,48 +0,0 @@
-package com.appttude.h_mal.easycc.ui.widget
-
-import android.app.Dialog
-import android.content.Context
-import android.os.Bundle
-import android.text.Editable
-import android.text.TextWatcher
-import android.view.WindowManager
-import android.widget.ArrayAdapter
-import com.appttude.h_mal.easycc.R
-import kotlinx.android.synthetic.main.custom_dialog.*
-
-/*
-widget for when submitting the completed selections
- */
-class WidgetItemSelectDialog(
-        context: Context,
-        private val dialogResult: DialogResult
-) :Dialog(context){
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.custom_dialog)
-
-        window!!.setBackgroundDrawableResource(android.R.color.transparent)
-        window!!.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE)
-
-        val arrayAdapter = ArrayAdapter.createFromResource(context, R.array.currency_arrays, android.R.layout.simple_list_item_1)
-        list_view.adapter = arrayAdapter
-
-        search_text.addTextChangedListener(object : TextWatcher {
-            override fun beforeTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {}
-            override fun onTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {
-                arrayAdapter.filter.filter(charSequence)
-            }
-            override fun afterTextChanged(editable: Editable) {}
-        })
-
-        list_view.setOnItemClickListener{ adapterView, _, i, _ ->
-            dialogResult.result(adapterView.getItemAtPosition(i).toString())
-            dismiss()
-        }
-    }
-}
-
-interface DialogResult{
-    fun result(result : String)
-}

app/src/main/java/com/appttude/h_mal/easycc/ui/widget/WidgetViewModel.kt

@@ -23,8 +23,7 @@ class WidgetViewModel(
     // Set default values for text views
     fun initiate(appId: Int) {
         appWidgetId = appId
-        val widgetString
+        val widgetString = repository.getWidgetConversionPairs(appId)
-                = repository.getWidgetConversionPairs(appId)
 
         rateIdFrom = widgetString.first ?: defaultCurrency
         rateIdTo = widgetString.second ?: defaultCurrency
@@ -61,7 +60,9 @@ class WidgetViewModel(
         when (tag.toString()) {
             "top" -> rateIdFrom = currencyName
             "bottom" -> rateIdTo = currencyName
-            else -> { return }
+            else -> {
+                return
+            }
         }
     }
 

app/src/main/java/com/appttude/h_mal/easycc/utils/PrimitiveUtils.kt

@@ -2,7 +2,6 @@ package com.appttude.h_mal.easycc.utils
 
 import java.lang.Double.valueOf
 import java.text.DecimalFormat
-import java.util.*
 
 fun transformIntToArray(int: Int): IntArray{
     return intArrayOf(int)

app/src/main/java/com/appttude/h_mal/easycc/utils/ViewUtils.kt

@@ -10,7 +10,11 @@ fun EditText.clearEditText(){
 }
 
 fun View.hideView(vis: Boolean) {
-    visibility = if (vis){ View.GONE } else { View.VISIBLE }
+    visibility = if (vis) {
+        View.GONE
+    } else {
+        View.VISIBLE
+    }
 }
 
 fun Context.displayToast(message: String) {

app/src/main/java/com/appttude/h_mal/easycc/widget/CurrencyAppWidgetKotlin.kt

@@ -1,21 +1,11 @@
 package com.appttude.h_mal.easycc.widget
 
-import android.app.Activity
-import android.app.PendingIntent
 import android.appwidget.AppWidgetManager
 import android.appwidget.AppWidgetProvider
-import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
-import android.util.Log
-import android.widget.RemoteViews
-import com.appttude.h_mal.easycc.R
 import com.appttude.h_mal.easycc.helper.WidgetHelper
-import com.appttude.h_mal.easycc.ui.main.MainActivity
+import com.appttude.h_mal.easycc.widget.WidgetServiceIntent.Companion.enqueueWork
-import com.appttude.h_mal.easycc.utils.transformIntToArray
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
 import org.kodein.di.KodeinAware
 import org.kodein.di.LateInitKodein
 import org.kodein.di.generic.instance
@@ -23,9 +13,8 @@ import org.kodein.di.generic.instance
 
 /**
  * Implementation of App Widget functionality.
- * App Widget Configuration implemented in [CurrencyAppWidgetConfigureActivityKotlin]
+ * App Widget Configuration implemented in [CurrencyAppWidgetKotlin]
  */
-private const val TAG = "CurrencyAppWidgetKotlin"
 
 class CurrencyAppWidgetKotlin : AppWidgetProvider() {
 
@@ -39,12 +28,7 @@ class CurrencyAppWidgetKotlin : AppWidgetProvider() {
         appWidgetManager: AppWidgetManager,
         appWidgetIds: IntArray
     ) {
-        kodein.baseKodein = (context.applicationContext as KodeinAware).kodein
+        loadWidget(context)
-        Log.i(TAG, "onUpdate() appWidgetIds = ${appWidgetIds.size}")
-        // There may be multiple widgets active, so update all of them
-        for (appWidgetId in appWidgetIds) {
-            updateAppWidget(context, appWidgetManager, appWidgetId)
-        }
         super.onUpdate(context, appWidgetManager, appWidgetIds)
     }
 
@@ -58,113 +42,13 @@ class CurrencyAppWidgetKotlin : AppWidgetProvider() {
     }
 
     override fun onEnabled(context: Context) {
-        kodein.baseKodein = (context.applicationContext as KodeinAware).kodein
+        loadWidget(context)
-        // Enter relevant functionality for when the first widget is created
-        AppWidgetManager.getInstance(context).apply {
-            val thisAppWidget =
-                ComponentName(context.packageName, CurrencyAppWidgetKotlin::class.java.name)
-            val appWidgetIds = getAppWidgetIds(thisAppWidget)
-            onUpdate(context, this, appWidgetIds)
-        }
         super.onEnabled(context)
     }
 
-    override fun onDisabled(context: Context) {
+    private fun loadWidget(context: Context) {
-        kodein.baseKodein = (context.applicationContext as KodeinAware).kodein
+        val mIntent = Intent(context, CurrencyAppWidgetKotlin::class.java)
-        // Enter relevant functionality for when the last widget is disabled
+        enqueueWork(context, mIntent)
-    }
-
-
-    private fun updateAppWidget(
-        context: Context,
-        appWidgetManager: AppWidgetManager,
-        appWidgetId: Int
-    ) {
-        // Construct the RemoteViews object
-        val views = RemoteViews(context.packageName, R.layout.currency_app_widget)
-
-        CoroutineScope(Dispatchers.Main).launch {
-            val exchangeResponse = repository.getWidgetData()
-
-            exchangeResponse?.let {
-                val titleString = "${it.from}${it.to}"
-                views.setTextViewText(R.id.exchangeName, titleString)
-                views.setTextViewText(R.id.exchangeRate, it.rate.toString())
-
-                setUpdateIntent(context, appWidgetId).let { intent ->
-                    //set the pending intent to the icon
-                    views.setImageViewResource(R.id.refresh_icon, R.drawable.ic_refresh_white_24dp)
-                    views.setOnClickPendingIntent(R.id.refresh_icon, intent)
-                }
-
-                val clickIntentTemplate = clickingIntent(context)
-
-                val configPendingIntent =
-                    PendingIntent.getActivity(
-                        context, appWidgetId, clickIntentTemplate,
-                        PendingIntent.FLAG_UPDATE_CURRENT
-                    )
-                views.setOnClickPendingIntent(R.id.widget_view, configPendingIntent)
-            }
-
-            // Instruct the widget manager to update the widget
-            appWidgetManager.updateAppWidget(appWidgetId, views)
-        }
-
-    }
-
-    private fun setUpdateIntent(context: Context, appWidgetId: Int): PendingIntent? {
-        //Create update intent for refresh icon
-        val updateIntent = Intent(
-            context, CurrencyAppWidgetKotlin::class.java
-        ).apply {
-            action = AppWidgetManager.ACTION_APPWIDGET_UPDATE
-            putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, transformIntToArray(appWidgetId))
-        }
-        //add previous intent to this pending intent
-        return PendingIntent.getBroadcast(
-            context,
-            appWidgetId,
-            updateIntent,
-            PendingIntent.FLAG_UPDATE_CURRENT
-        )
-    }
-
-    private fun clickingIntent(
-        context: Context
-    ): Intent {
-        val pair = repository.repository.getConversionPair()
-        val s1 = pair.first
-        val s2 = pair.second
-        return Intent(context, MainActivity::class.java).apply {
-            action = Intent.ACTION_MAIN
-            addCategory(Intent.CATEGORY_LAUNCHER)
-            putExtra("parse_1", s1)
-            putExtra("parse_2", s2)
-            addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP)
-        }
-    }
-
-    private fun <T: Activity> clickingIntent(
-        context: Context,
-        activity: Class<T>,
-        vararg argPairs: Pair<String, Any?>
-    ): Intent {
-
-        return Intent(context, activity::class.java).apply {
-            action = Intent.ACTION_MAIN
-            addCategory(Intent.CATEGORY_LAUNCHER)
-            argPairs.forEach {
-                putExtra(it.first, it.second)
-            }
-            addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP)
-        }
-    }
-
-    private fun <T: Any> Intent.putExtra(s: String, second: T?) {
-        when(second){
-            is String -> putExtra(s,second)
-        }
     }
 }
 

app/src/main/java/com/appttude/h_mal/easycc/widget/WidgetServiceIntent.kt

@@ -0,0 +1,121 @@
+package com.appttude.h_mal.easycc.widget
+
+import android.app.PendingIntent
+import android.appwidget.AppWidgetManager
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.widget.RemoteViews
+import androidx.core.app.JobIntentService
+import com.appttude.h_mal.easycc.R
+import com.appttude.h_mal.easycc.helper.WidgetHelper
+import com.appttude.h_mal.easycc.ui.main.MainActivity
+import com.appttude.h_mal.easycc.utils.transformIntToArray
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import org.kodein.di.LateInitKodein
+import org.kodein.di.generic.instance
+
+class WidgetServiceIntent : JobIntentService() {
+
+    //DI with kodein to use in CurrencyAppWidgetKotlin
+    private val kodein = LateInitKodein()
+    private val repository: WidgetHelper by kodein.instance()
+
+    override fun onHandleWork(intent: Intent) {
+        kodein.baseKodein = this.kodein
+
+        val appWidgetManager = AppWidgetManager.getInstance(this)
+        val thisAppWidget = ComponentName(packageName, CurrencyAppWidgetKotlin::class.java.name)
+        val appWidgetIds = appWidgetManager.getAppWidgetIds(thisAppWidget)
+
+        for (appWidgetId in appWidgetIds) {
+            updateAppWidget(this, appWidgetManager, appWidgetId)
+        }
+    }
+
+    private fun updateAppWidget(
+        context: Context,
+        appWidgetManager: AppWidgetManager,
+        appWidgetId: Int
+    ) {
+        // Construct the RemoteViews object
+        val views = RemoteViews(context.packageName, R.layout.currency_app_widget)
+
+        CoroutineScope(Dispatchers.Main).launch {
+            val exchangeResponse = repository.getWidgetData()
+
+            exchangeResponse?.let {
+                val titleString = "${it.from}${it.to}"
+                views.setTextViewText(R.id.exchangeName, titleString)
+                views.setTextViewText(R.id.exchangeRate, it.rate.toString())
+
+                setUpdateIntent(context, appWidgetId).let { intent ->
+                    //set the pending intent to the icon
+                    views.setImageViewResource(R.id.refresh_icon, R.drawable.ic_refresh_white_24dp)
+                    views.setOnClickPendingIntent(R.id.refresh_icon, intent)
+                }
+
+                val clickIntentTemplate = clickingIntent(context)
+
+                val configPendingIntent =
+                    PendingIntent.getActivity(
+                        context, appWidgetId, clickIntentTemplate,
+                        PendingIntent.FLAG_UPDATE_CURRENT
+                    )
+                views.setOnClickPendingIntent(R.id.widget_view, configPendingIntent)
+            }
+
+            // Instruct the widget manager to update the widget
+            appWidgetManager.updateAppWidget(appWidgetId, views)
+        }
+
+    }
+
+    private fun setUpdateIntent(context: Context, appWidgetId: Int): PendingIntent? {
+        //Create update intent for refresh icon
+        val updateIntent = Intent(
+            context, CurrencyAppWidgetKotlin::class.java
+        ).apply {
+            action = AppWidgetManager.ACTION_APPWIDGET_UPDATE
+            putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, transformIntToArray(appWidgetId))
+        }
+        //add previous intent to this pending intent
+        return PendingIntent.getBroadcast(
+            context,
+            appWidgetId,
+            updateIntent,
+            PendingIntent.FLAG_UPDATE_CURRENT
+        )
+    }
+
+    private fun clickingIntent(
+        context: Context
+    ): Intent {
+        val pair = repository.repository.getConversionPair()
+        val s1 = pair.first
+        val s2 = pair.second
+        return Intent(context, MainActivity::class.java).apply {
+            action = Intent.ACTION_MAIN
+            addCategory(Intent.CATEGORY_LAUNCHER)
+            putExtra("parse_1", s1)
+            putExtra("parse_2", s2)
+            addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP)
+        }
+    }
+
+    companion object {
+        /**
+         * Unique job ID for this service.
+         */
+        private const val JOB_ID = 1000
+
+        /**
+         * Convenience method for enqueuing work in to this service.
+         */
+        fun enqueueWork(context: Context, work: Intent) {
+            enqueueWork(context, WidgetServiceIntent::class.java, JOB_ID, work)
+        }
+    }
+}

app/src/test/java/com/appttude/h_mal/easycc/ExampleUnitTest.java

@@ -1,20 +0,0 @@
-package com.appttude.h_mal.easycc;
-
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-public class ExampleUnitTest {
-
-    @Test
-    public void addition_isCorrect() throws Exception {
-        assertEquals(4, 2 + 2);
-    }
-
-
-}

app/src/test/java/com/appttude/h_mal/easycc/repository/RepositoryNetworkTest.kt

@@ -2,7 +2,6 @@ package com.appttude.h_mal.easycc.repository
 
 import com.appttude.h_mal.easycc.data.network.api.BackupCurrencyApi
 import com.appttude.h_mal.easycc.data.network.api.CurrencyApi
-import com.appttude.h_mal.easycc.data.network.response.CurrencyResponse
 import com.appttude.h_mal.easycc.data.network.response.ResponseObject
 import com.appttude.h_mal.easycc.data.prefs.PreferenceProvider
 import com.appttude.h_mal.easycc.data.repository.Repository
@@ -29,8 +28,10 @@ class RepositoryNetworkTest{
 
     @Mock
     lateinit var api: CurrencyApi
+
     @Mock
     lateinit var apiBackup: BackupCurrencyApi
+
     @Mock
     lateinit var prefs: PreferenceProvider
 

app/src/test/java/com/appttude/h_mal/easycc/repository/RepositoryStorageTest.kt

@@ -1,6 +1,5 @@
 package com.appttude.h_mal.easycc.repository
 
-import android.content.Context
 import com.appttude.h_mal.easycc.data.network.api.BackupCurrencyApi
 import com.appttude.h_mal.easycc.data.network.api.CurrencyApi
 import com.appttude.h_mal.easycc.data.prefs.PreferenceProvider
@@ -19,8 +18,10 @@ class RepositoryStorageTest {
 
     @Mock
     lateinit var api: CurrencyApi
+
     @Mock
     lateinit var apiBackup: BackupCurrencyApi
+
     @Mock
     lateinit var prefs: PreferenceProvider
 

app/src/test/java/com/appttude/h_mal/easycc/ui/main/MainViewModelTest.kt

@@ -6,10 +6,10 @@ import androidx.arch.core.executor.testing.InstantTaskExecutorRule
 import com.appttude.h_mal.easycc.data.network.response.ResponseObject
 import com.appttude.h_mal.easycc.data.repository.Repository
 import com.appttude.h_mal.easycc.helper.CurrencyDataHelper
-import kotlinx.coroutines.runBlocking
-import org.junit.Before
 import com.appttude.h_mal.easycc.utils.observeOnce
+import kotlinx.coroutines.runBlocking
 import org.junit.Assert.*
+import org.junit.Before
 import org.junit.Rule
 import org.junit.Test
 import org.mockito.Mock
@@ -48,7 +48,8 @@ class MainViewModelTest {
         //WHEN
         Mockito.`when`(bundle.getString("parse_1")).thenReturn(currencyOne)
         Mockito.`when`(bundle.getString("parse_2")).thenReturn(currencyTwo)
-        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo)).thenReturn(responseObject)
+        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo))
+            .thenReturn(responseObject)
 
         //THEN
         viewModel.initiate(bundle)
@@ -71,7 +72,8 @@ class MainViewModelTest {
 
         //WHEN
         Mockito.`when`(repository.getConversionPair()).thenReturn(pair)
-        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo)).thenReturn(responseObject)
+        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo))
+            .thenReturn(responseObject)
 
         //THEN
         viewModel.initiate(null)
@@ -128,7 +130,6 @@ class MainViewModelTest {
     }
 
 
-
     @Test
     fun setCurrencyName_validValues_successResponse() = runBlocking {
         //GIVEN
@@ -139,7 +140,8 @@ class MainViewModelTest {
         val responseObject = mock(ResponseObject::class.java)
 
         //WHEN
-        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo)).thenReturn(responseObject)
+        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo))
+            .thenReturn(responseObject)
 
         //THEN
         viewModel.setCurrencyName(tag, currencyOne)
@@ -163,7 +165,8 @@ class MainViewModelTest {
         val responseObject = mock(ResponseObject::class.java)
 
         //WHEN
-        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo)).thenReturn(responseObject)
+        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo))
+            .thenReturn(responseObject)
 
         //THEN
         viewModel.setCurrencyName(tag, currencyOne)
@@ -185,7 +188,8 @@ class MainViewModelTest {
         val responseObject = mock(ResponseObject::class.java)
 
         //WHEN
-        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo)).thenReturn(responseObject)
+        Mockito.`when`(repository.getDataFromApi(currencyOne, currencyTwo))
+            .thenReturn(responseObject)
 
         //THEN
         viewModel.setCurrencyName(tag, currencyOne)

app/src/test/java/com/appttude/h_mal/easycc/ui/widget/WidgetViewModelTest.kt

@@ -3,8 +3,8 @@ package com.appttude.h_mal.easycc.ui.widget
 import androidx.arch.core.executor.testing.InstantTaskExecutorRule
 import com.appttude.h_mal.easycc.data.repository.Repository
 import com.appttude.h_mal.easycc.utils.observeOnce
-import org.junit.Before
 import org.junit.Assert.*
+import org.junit.Before
 import org.junit.Rule
 import org.junit.Test
 import org.mockito.Mock
@@ -14,6 +14,7 @@ import org.mockito.MockitoAnnotations
 
 private const val currencyOne = "AUD - Australian Dollar"
 private const val currencyTwo = "GBP - British Pound"
+
 class WidgetViewModelTest {
 
     // Run tasks synchronously

app/src/test/java/com/appttude/h_mal/easycc/utils/OneTimeObserver.kt

@@ -1,4 +1,4 @@
-package com.appttude.h_mal.easycc
+package com.appttude.h_mal.easycc.utils
 
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleOwner

app/src/test/java/com/appttude/h_mal/easycc/utils/TestUtils.kt

@@ -1,7 +1,6 @@
 package com.appttude.h_mal.easycc.utils
 
 import androidx.lifecycle.LiveData
-import com.appttude.h_mal.easycc.OneTimeObserver
 
 fun <T> LiveData<T>.observeOnce(onChangeHandler: (T) -> Unit) {
     val observer = OneTimeObserver(handler = onChangeHandler)

build.gradle

@@ -1,14 +1,14 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript { 
-    ext.kotlin_version = '1.3.61'
+    ext.kotlin_version = '1.4.10'
 
     repositories {
         jcenter()
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.1'
+        classpath 'com.android.tools.build:gradle:4.0.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Thu Mar 05 18:27:33 UTC 2020
+#Sat Jun 12 22:27:25 BST 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip