Attempts to fix lifecycle crash

app/src/main/java/net/pokeranalytics/android/ui/activity/ComparisonReportActivity.kt

@@ -20,7 +20,7 @@ class ComparisonReportActivity : ReportActivity() {
 	private fun initUI() {
 
 		val fragmentTransaction = supportFragmentManager.beginTransaction()
-		val reportDetailsFragment = ComparisonReportFragment.newInstance()
+		val reportDetailsFragment = ComparisonReportFragment.newInstance(this.viewModelFactory)
 		fragmentTransaction.add(R.id.reportDetailsContainer, reportDetailsFragment)
 		fragmentTransaction.commit()
 

app/src/main/java/net/pokeranalytics/android/ui/activity/ProgressReportActivity.kt

@@ -46,7 +46,7 @@ class ProgressReportActivity : ReportActivity() {
 	 */
 	private fun initUI() {
 
-		val progressFragment = ProgressReportFragment()
+		val progressFragment = ProgressReportFragment.newInstance(this.viewModelFactory)
 		val fragmentTransaction = supportFragmentManager.beginTransaction()
 		fragmentTransaction.add(R.id.statisticDetailsContainer, progressFragment)
 		fragmentTransaction.commit()

app/src/main/java/net/pokeranalytics/android/ui/activity/TableReportActivity.kt

@@ -18,16 +18,8 @@ class TableReportActivity : ReportActivity() {
 	 */
 	private fun initUI() {
 
-//		parameters?.let {
-//
-//			val report = it.report
-//			val title = it.title
-//
-//		}
-//		parameters = null
-
 		val fragmentTransaction = supportFragmentManager.beginTransaction()
-		val fragment = TableReportFragment.newInstance()
+		val fragment = TableReportFragment.newInstance(this.viewModelFactory)
 		fragmentTransaction.add(R.id.reportDetailsContainer, fragment)
 		fragmentTransaction.commit()
 	}

app/src/main/java/net/pokeranalytics/android/ui/activity/components/ReportActivity.kt

@@ -5,17 +5,27 @@ import android.content.Intent
 import android.os.Bundle
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProviders
-import com.crashlytics.android.Crashlytics
 import net.pokeranalytics.android.calculus.Report
 import net.pokeranalytics.android.calculus.Stat
+import net.pokeranalytics.android.exceptions.PAIllegalStateException
 import net.pokeranalytics.android.ui.viewmodel.ReportViewModel
+import net.pokeranalytics.android.ui.viewmodel.ReportViewModelFactory
 
 class ReportParameters(var report: Report, var title: String, var stat: Stat? = null, var showAggregationChoices: Boolean = true)
 
 abstract class ReportActivity : PokerAnalyticsActivity() {
 
+	protected val viewModelFactory: ReportViewModelFactory by lazy {
+		ReportViewModel.parameters?.let {
+			val stat = it.stat ?: it.report.options.stats.first()
+			ReportViewModelFactory(it.report, stat, it.title, it.showAggregationChoices)
+		} ?: run {
+			throw PAIllegalStateException("null report parameters")
+		}
+	}
+
 	protected val viewModel: ReportViewModel by lazy {
-		ViewModelProviders.of(this).get(ReportViewModel::class.java)
+		ViewModelProviders.of(this, viewModelFactory).get(ReportViewModel::class.java)
 	}
 
 	companion object {
@@ -43,19 +53,24 @@ abstract class ReportActivity : PokerAnalyticsActivity() {
 
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
-		this.initViewModelWithParameters()
+//		this.initViewModelWithParameters()
+	}
+
+	override fun onStart() {
+		super.onStart()
+		ReportViewModel.resetParameters()
 	}
 
 	private fun initViewModelWithParameters() {
 
 		ReportViewModel.parameters?.let {
-			this.viewModel.report = it.report
+//			this.viewModel.report = it.report
-			this.viewModel.title = it.title
+//			this.viewModel.title = it.title
-			val stat = it.stat ?: it.report.options.stats.first()
+//			val stat = it.stat ?: it.report.options.stats.first()
-			this.viewModel.stat = stat
+//			this.viewModel.stat = stat
-			this.viewModel.showAggregationChoices = it.showAggregationChoices
+//			this.viewModel.showAggregationChoices = it.showAggregationChoices
 
-			Crashlytics.log("initViewModelWithParameters, stat = ${stat.uniqueIdentifier}")
+//			Crashlytics.log("initViewModelWithParameters, stat = ${stat.uniqueIdentifier}")
 
 			ReportViewModel.resetParameters()
 		}

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

@@ -16,23 +16,28 @@ import net.pokeranalytics.android.model.LiveData
 import net.pokeranalytics.android.model.realm.ReportSetup
 import net.pokeranalytics.android.ui.fragment.data.DataManagerFragment
 import net.pokeranalytics.android.ui.viewmodel.ReportViewModel
+import net.pokeranalytics.android.ui.viewmodel.ReportViewModelFactory
 import net.pokeranalytics.android.util.extensions.findById
 
 
 abstract class AbstractReportFragment : DataManagerFragment() {
 
+	protected var viewModelFactory: ReportViewModelFactory? = null
+
 	protected val viewModel: ReportViewModel by lazy {
-		ViewModelProviders.of(requireActivity()).get(ReportViewModel::class.java)
+		this.viewModelFactory?.let {
+			ViewModelProviders.of(requireActivity(), it).get(ReportViewModel::class.java)
+		} ?: throw PAIllegalStateException("no factory")
 	}
 
 	val selectedReport: Report
 		get() {
-			return this.viewModel.report!!
+			return this.viewModel.report
 		}
 
 	val stat: Stat
 		get() {
-			return this.viewModel.stat!!
+			return this.viewModel.stat
 		}
 
 	override fun onCreate(savedInstanceState: Bundle?) {

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

@@ -8,13 +8,15 @@ import com.google.android.material.tabs.TabLayout
 import kotlinx.android.synthetic.main.fragment_report_details.*
 import net.pokeranalytics.android.R
 import net.pokeranalytics.android.ui.adapter.ReportPagerAdapter
+import net.pokeranalytics.android.ui.viewmodel.ReportViewModelFactory
 
 class ComparisonReportFragment : AbstractReportFragment() {
 
 	companion object {
 
-		fun newInstance(): ComparisonReportFragment {
+		fun newInstance(viewModelFactory: ReportViewModelFactory): ComparisonReportFragment {
 			val fragment = ComparisonReportFragment()
+			fragment.viewModelFactory = viewModelFactory
 			val bundle = Bundle()
 			fragment.arguments = bundle
 			return fragment

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

@@ -26,6 +26,7 @@ import net.pokeranalytics.android.ui.extensions.hideWithAnimation
 import net.pokeranalytics.android.ui.extensions.px
 import net.pokeranalytics.android.ui.extensions.showWithAnimation
 import net.pokeranalytics.android.ui.fragment.GraphFragment
+import net.pokeranalytics.android.ui.viewmodel.ReportViewModelFactory
 import timber.log.Timber
 import java.util.*
 
@@ -37,8 +38,9 @@ class ProgressReportFragment : AbstractReportFragment() {
 		/**
 		 * Creates new instance
 		 */
-		fun newInstance(): ProgressReportFragment {
+		fun newInstance(viewModelFactory: ReportViewModelFactory): ProgressReportFragment {
 			val fragment = ProgressReportFragment()
+			fragment.viewModelFactory = viewModelFactory
 			val bundle = Bundle()
 			fragment.arguments = bundle
 			return fragment

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

@@ -5,6 +5,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import net.pokeranalytics.android.R
+import net.pokeranalytics.android.ui.viewmodel.ReportViewModelFactory
 
 class TableReportFragment : AbstractReportFragment() {
 
@@ -12,8 +13,9 @@ class TableReportFragment : AbstractReportFragment() {
 
 	companion object {
 
-		fun newInstance(): TableReportFragment {
+		fun newInstance(viewModelFactory: ReportViewModelFactory): TableReportFragment {
 			val fragment = TableReportFragment()
+			fragment.viewModelFactory = viewModelFactory
 //			fragment.reportTitle = title
 //			fragment.setReport(report)
 			val bundle = Bundle()

app/src/main/java/net/pokeranalytics/android/ui/viewmodel/ReportViewModel.kt

@@ -1,11 +1,30 @@
 package net.pokeranalytics.android.ui.viewmodel
 
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
 import net.pokeranalytics.android.calculus.Report
 import net.pokeranalytics.android.calculus.Stat
 import net.pokeranalytics.android.ui.activity.components.ReportParameters
 
-class ReportViewModel : ViewModel() {
+class ReportViewModelFactory(val report: Report,
+                             val stat: Stat,
+                             val title: String,
+                             val showAggregationChoices: Boolean = true) : ViewModelProvider.Factory {
+	override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+		return ReportViewModel(report, stat, title, showAggregationChoices) as T
+	}
+}
+
+class ReportViewModel(
+	var report: Report,
+	var stat: Stat,
+	var title: String,
+	var showAggregationChoices: Boolean = true) : ViewModel() {
+
+//	var report: Report? = null
+//	var title: String = ""
+//	var stat: Stat? = null
+//	var showAggregationChoices: Boolean = true
 
 	companion object {
 
@@ -27,9 +46,5 @@ class ReportViewModel : ViewModel() {
 
 	}
 
-	var report: Report? = null
-	var title: String = ""
-	var stat: Stat? = null
-	var showAggregationChoices: Boolean = true
 
 }