Clean code

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

@@ -9,7 +9,6 @@ import net.pokeranalytics.android.R
 import net.pokeranalytics.android.calculus.Report
 import net.pokeranalytics.android.model.LiveData
 import net.pokeranalytics.android.model.realm.ReportSetup
-import net.pokeranalytics.android.ui.activity.components.PokerAnalyticsActivity
 import net.pokeranalytics.android.ui.fragment.data.DataManagerFragment
 
 abstract class AbstractReportFragment : DataManagerFragment() {
@@ -28,8 +27,6 @@ abstract class AbstractReportFragment : DataManagerFragment() {
 
 	protected var reportTitle: String? = null
 
-	protected lateinit var parentActivity: PokerAnalyticsActivity
-
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
 
@@ -41,25 +38,17 @@ abstract class AbstractReportFragment : DataManagerFragment() {
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
 
-		parentActivity = activity as PokerAnalyticsActivity
-
-		// Avoid a bug during setting the titleResId
-		toolbar.title = ""
-
-		parentActivity.setSupportActionBar(toolbar)
-		parentActivity.supportActionBar?.setDisplayHomeAsUpEnabled(true)
-		setHasOptionsMenu(true)
-
-		toolbar.title = reportTitle
-
+		setDisplayHomeAsUpEnabled(true)
+		setToolbarTitle(reportTitle)
 	}
 
 	override fun saveData() {
 
 		activity?.let {
 			val builder = AlertDialog.Builder(it)
+
 			// Get the layout inflater
-			val inflater = requireActivity().layoutInflater;
+			val inflater = requireActivity().layoutInflater
 
 			// Inflate and set the layout for the dialog
 			// Pass null as the parent view because its going in the dialog layout

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

@@ -80,12 +80,12 @@ class ProgressReportFragment : AbstractReportFragment() {
 	 */
 	private fun initUI() {
 
-		val fragmentManager = parentActivity.supportFragmentManager
-		val fragmentTransaction = fragmentManager.beginTransaction()
+		val fragmentManager = parentActivity?.supportFragmentManager
+		val fragmentTransaction = fragmentManager?.beginTransaction()
 		graphFragment = GraphFragment()
 
-		fragmentTransaction.add(R.id.graphContainer, graphFragment)
-		fragmentTransaction.commit()
+		fragmentTransaction?.add(R.id.graphContainer, graphFragment)
+		fragmentTransaction?.commit()
 
 		stat.aggregationTypes.firstOrNull()?.let { aggregationType ->
 			reports[aggregationType]?.let { report ->