Add loader fragment

app/src/main/java/net/pokeranalytics/android/ui/fragment/ReportsFragment.kt

@@ -105,8 +105,7 @@ class ReportsFragment : PokerAnalyticsFragment(), StaticRowRepresentableDataSour
 	 */
 	private fun launchComputation(comparators: List<Comparator>, reportName: String) {
 
-		//val loader = LoaderDialogFragment.newInstance()
+		showLoader()
-		//loader.show(activity?.supportFragmentManager, "loader")
 
 		GlobalScope.launch {
 
@@ -121,6 +120,7 @@ class ReportsFragment : PokerAnalyticsFragment(), StaticRowRepresentableDataSour
 
 			launch(Dispatchers.Main) {
 				if (!isDetached) {
+					hideLoader()
 					ReportDetailsActivity.newInstance(requireContext(), report, reportName)
 				}
 			}

app/src/main/java/net/pokeranalytics/android/ui/fragment/components/LoaderDialogFragment.kt

@@ -5,24 +5,49 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.DialogFragment
+import kotlinx.android.synthetic.main.fragment_loader.*
 import net.pokeranalytics.android.R
 
+
 class LoaderDialogFragment: DialogFragment() {
 
 	companion object {
+
+		const val ARGUMENT_MESSAGE_RES_ID = "ARGUMENT_MESSAGE_RES_ID"
+
 		/**
 		 * Create new instance
 		 */
-		fun newInstance(): LoaderDialogFragment {
+		fun newInstance(resId: Int? = null, isCancelable: Boolean = false): LoaderDialogFragment {
 			val fragment = LoaderDialogFragment()
+			fragment.isCancelable = isCancelable
 			val bundle = Bundle()
+			resId?.let {
+				bundle.putInt(ARGUMENT_MESSAGE_RES_ID, resId)
+			}
 			fragment.arguments = bundle
 			return fragment
 		}
+
 	}
 
 	override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
 		return inflater.inflate(R.layout.fragment_loader, container, false)
 	}
 
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		arguments?.let {bundle ->
+			if (bundle.containsKey(ARGUMENT_MESSAGE_RES_ID)) {
+				loadingMessage.text = getString(bundle.getInt(ARGUMENT_MESSAGE_RES_ID))
+			}
+		}
+	}
+
+	override fun onStart() {
+		super.onStart()
+		val window = dialog.window
+		window?.setBackgroundDrawableResource(android.R.color.transparent)
+	}
+
 }

app/src/main/java/net/pokeranalytics/android/ui/fragment/components/PokerAnalyticsFragment.kt

@@ -7,6 +7,7 @@ import io.realm.Realm
 open class PokerAnalyticsFragment: Fragment() {
 
 	private var realm: Realm? = null
+	private var loaderDialogFragment: LoaderDialogFragment? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -36,4 +37,22 @@ open class PokerAnalyticsFragment: Fragment() {
 	 */
 	open fun onBackPressed(){}
 
+	/**
+	 * Show the loader
+	 */
+	fun showLoader(resId: Int? = null, cancelable: Boolean? = false) {
+		loaderDialogFragment = LoaderDialogFragment.newInstance(resId, false)
+		activity?.let {
+			loaderDialogFragment?.show(it.supportFragmentManager, "loader")
+		}
+	}
+
+	/**
+	 * Hide the loader
+	 */
+	fun hideLoader() {
+		loaderDialogFragment?.dismiss()
+		loaderDialogFragment = null
+	}
+
 }

app/src/main/res/drawable/rectangle_rounded_dark.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <solid
+        android:color="@color/colorPrimary"/>
+
+    <corners
+        android:radius="2dp" />
+
+    <size
+        android:width="32dp"
+        android:height="32dp"/>
+
+</shape>

app/src/main/res/layout/fragment_loader.xml

@@ -2,10 +2,20 @@
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:app="http://schemas.android.com/apk/res-auto"
 	xmlns:tools="http://schemas.android.com/tools"
-	android:layout_width="256dp"
+	android:layout_width="wrap_content"
-	android:layout_height="128dp"
+	android:layout_height="wrap_content"
 	android:layout_gravity="center"
-	android:background="@color/colorPrimary">
+	android:background="@android:color/transparent"
+	android:elevation="4dp">
+
+	<View
+		android:layout_width="256dp"
+		android:layout_height="120dp"
+		android:background="@drawable/rectangle_rounded_dark"
+		app:layout_constraintBottom_toBottomOf="parent"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toTopOf="parent" />
 
 	<androidx.core.widget.ContentLoadingProgressBar
 		android:id="@+id/progressBar"
@@ -26,15 +36,14 @@
 		android:layout_width="wrap_content"
 		android:layout_height="wrap_content"
 		android:layout_marginStart="8dp"
-		android:layout_marginTop="16dp"
+		android:layout_marginTop="8dp"
 		android:layout_marginEnd="8dp"
 		android:layout_marginBottom="8dp"
 		android:fontFamily="@font/roboto"
-		android:textSize="16sp"
 		android:text="@string/calculating_please_wait_"
+		android:textSize="16sp"
 		app:layout_constraintBottom_toBottomOf="parent"
 		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.5"
 		app:layout_constraintStart_toStartOf="parent"
 		app:layout_constraintTop_toBottomOf="@+id/progressBar"
 		app:layout_constraintVertical_chainStyle="packed" />