Improve stability and fix crashes

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

@@ -29,6 +29,9 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
         get() = Dispatchers.Main
 
     private var rowRepresentables: ArrayList<RowRepresentable> = ArrayList()
+	private var stringAll = ""
+	private var stringCashGame = ""
+	private var stringTournament = ""
 
     private lateinit var statsAdapter: RowRepresentableAdapter
 
@@ -54,6 +57,8 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         initData()
+	    initUI()
+	    launchStatComputation()
     }
 
     // Row Representable DS
@@ -103,10 +108,28 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
      */
     private fun initData() {
 
+	    this.stringAll = getString(R.string.all)
+	    this.stringCashGame = getString(R.string.cash_game)
+	    this.stringTournament = getString(R.string.tournament)
+
         this.statsAdapter = RowRepresentableAdapter(this)
-        this.launchStatComputation()
     }
 
+	/**
+	 * Init UI
+	 */
+	private fun initUI() {
+
+		val viewManager = LinearLayoutManager(requireContext())
+
+		recyclerView.apply {
+			setHasFixedSize(true)
+			layoutManager = viewManager
+			adapter = statsAdapter
+		}
+	}
+
+
     private fun launchStatComputation() {
 
 //	    Thread() {
@@ -144,8 +167,11 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
 
 		    }
 		    test.await()
+
+		    if (!isDetached) {
 			    showResults(results)
 		    }
+	    }
 
     }
 
@@ -175,13 +201,11 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
         }
 
         val allStats: List<Stat> = listOf(Stat.NETRESULT, Stat.HOURLY_RATE, Stat.AVERAGE, Stat.NUMBER_OF_SETS, Stat.AVERAGE_DURATION, Stat.DURATION)
-        val allSessionGroup = SessionGroup(getString(R.string.all), sessionsList, allStats)
+        val allSessionGroup = SessionGroup(stringAll, sessionsList, allStats)
         val cgStats: List<Stat> = listOf(Stat.NETRESULT, Stat.HOURLY_RATE, Stat.NET_BB_PER_100_HANDS, Stat.HOURLY_RATE_BB, Stat.AVERAGE, Stat.STANDARD_DEVIATION_HOURLY, Stat.WIN_RATIO, Stat.NUMBER_OF_GAMES, Stat.AVERAGE_BUYIN)
-        val cgSessionGroup = SessionGroup(getString(R.string.cash_game), cgSessions, cgStats)
+        val cgSessionGroup = SessionGroup(stringCashGame, cgSessions, cgStats)
         val tStats: List<Stat> = listOf(Stat.NETRESULT, Stat.HOURLY_RATE, Stat.ROI, Stat.WIN_RATIO, Stat.NUMBER_OF_GAMES, Stat.AVERAGE_BUYIN)
-        val tSessionGroup = SessionGroup(getString(R.string.tournament), tSessions, tStats)
-
-
+        val tSessionGroup = SessionGroup(stringTournament, tSessions, tStats)
 
         Timber.d(">>>>> Start computations...")
 
@@ -190,16 +214,8 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
     }
 
     private fun showResults(results: List<ComputedResults>) {
-
         this.rowRepresentables = this.convertResultsIntoRepresentables(results)
-
-        val viewManager = LinearLayoutManager(requireContext())
-
-        recyclerView.apply {
-            setHasFixedSize(true)
-            layoutManager = viewManager
-            adapter = statsAdapter
-        }
+		statsAdapter.notifyDataSetChanged()
     }
 
     private fun convertResultsIntoRepresentables(results: List<ComputedResults>) : ArrayList<RowRepresentable> {