Start of Graphs

app/build.gradle

@@ -7,6 +7,7 @@ apply plugin: 'io.fabric'
 
 repositories {
     maven { url 'https://maven.fabric.io/public' }
+    maven { url 'https://jitpack.io' }
 }
 
 android {
@@ -95,6 +96,10 @@ dependencies {
     // Logs
     implementation 'com.jakewharton.timber:timber:4.7.1'
 
+    // MPAndroidChart
+    implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
+
+    // Instrumented Tests
     androidTestImplementation 'androidx.test:core:1.1.0'
     androidTestImplementation 'androidx.test:runner:1.1.1'
     androidTestImplementation 'androidx.test:rules:1.1.1'

app/src/main/java/net/pokeranalytics/android/calculus/Calculator.kt

@@ -144,21 +144,21 @@ class Calculator {
 						tBuyinSum += s.ratedBuyin
 						tHands += s.estimatedHands
 
-						results.addEvolutionValue(tSum, NETRESULT)
+						results.addEvolutionValue(tSum, NETRESULT, s)
-						results.addEvolutionValue(tSum / index, AVERAGE)
+						results.addEvolutionValue(tSum / index, AVERAGE, s)
-						results.addEvolutionValue(index.toDouble(), NUMBER_OF_GAMES)
+						results.addEvolutionValue(index.toDouble(), NUMBER_OF_GAMES, s)
-						results.addEvolutionValue(tBBSum / tBBSessionCount, AVERAGE_NET_BB)
+						results.addEvolutionValue(tBBSum / tBBSessionCount, AVERAGE_NET_BB, s)
-						results.addEvolutionValue((tWinningSessionCount / index).toDouble(), WIN_RATIO)
+						results.addEvolutionValue((tWinningSessionCount / index).toDouble(), WIN_RATIO, s)
-						results.addEvolutionValue(tBuyinSum / index, AVERAGE_BUYIN)
+						results.addEvolutionValue(tBuyinSum / index, AVERAGE_BUYIN, s)
 
 						val netBB100 = Stat.netBBPer100Hands(tBBSum, tHands)
 						if (netBB100 != null) {
-							results.addEvolutionValue(netBB100, NET_BB_PER_100_HANDS)
+							results.addEvolutionValue(netBB100, NET_BB_PER_100_HANDS, s)
 						}
 
 						val roi = Stat.returnOnInvestment(tSum, tBuyinSum)
 						if (roi != null) {
-							results.addEvolutionValue(roi, ROI)
+							results.addEvolutionValue(roi, ROI, s)
 						}
 
 					}
@@ -201,19 +201,19 @@ class Calculator {
 						tHourlyRate = gSum / tHourlyDuration
 						tHourlyRateBB = gBBSum / tHourlyDuration
 
-						results.addEvolutionValue(tSum, tHourlyDuration, NETRESULT)
+						results.addEvolutionValue(tSum, tHourlyDuration, NETRESULT, sessionSet)
-						results.addEvolutionValue(tSum / tHourlyDuration, tHourlyDuration, HOURLY_RATE)
+						results.addEvolutionValue(tSum / tHourlyDuration, tHourlyDuration, HOURLY_RATE, sessionSet)
-						results.addEvolutionValue(tHourlyRate, tHourlyDuration, HOURLY_RATE)
+						results.addEvolutionValue(tHourlyRate, tHourlyDuration, HOURLY_RATE, sessionSet)
-						results.addEvolutionValue(tIndex.toDouble(), tHourlyDuration, NUMBER_OF_SETS)
+						results.addEvolutionValue(tIndex.toDouble(), tHourlyDuration, NUMBER_OF_SETS, sessionSet)
-						results.addEvolutionValue(sessionSet.netDuration.toDouble(), tHourlyDuration, DURATION)
+						results.addEvolutionValue(sessionSet.netDuration.toDouble(), tHourlyDuration, DURATION, sessionSet)
-						results.addEvolutionValue(tHourlyDuration / tIndex, tHourlyDuration, AVERAGE_DURATION)
+						results.addEvolutionValue(tHourlyDuration / tIndex, tHourlyDuration, AVERAGE_DURATION, sessionSet)
-						results.addEvolutionValue(tHourlyRateBB, tHourlyDuration, HOURLY_RATE_BB)
+						results.addEvolutionValue(tHourlyRateBB, tHourlyDuration, HOURLY_RATE_BB, sessionSet)
 
 						val netBB100 = Stat.netBBPer100Hands(gBBSum, gTotalHands)
 						if (netBB100 != null) {
-							results.addEvolutionValue(netBB100, tHourlyDuration, NET_BB_PER_100_HANDS)
+							results.addEvolutionValue(netBB100, tHourlyDuration, NET_BB_PER_100_HANDS, sessionSet)
 						} else { //@todo maybe not
-							results.addEvolutionValue(0.0, tHourlyDuration, NET_BB_PER_100_HANDS)
+							results.addEvolutionValue(0.0, tHourlyDuration, NET_BB_PER_100_HANDS, sessionSet)
 						}
 					}
 				}

app/src/main/java/net/pokeranalytics/android/calculus/ComputableGroup.kt

@@ -1,5 +1,7 @@
 package net.pokeranalytics.android.calculus
 
+import com.github.mikephil.charting.data.BarEntry
+import com.github.mikephil.charting.data.Entry
 import io.realm.RealmResults
 import net.pokeranalytics.android.model.realm.ComputableResult
 import net.pokeranalytics.android.model.realm.SessionSet
@@ -58,20 +60,23 @@ class ComputedResults(group: ComputableGroup) {
         return this._computedStats.values
     }
 
-    fun addEvolutionValue(value: Double, stat: Stat) {
+    /**
-        this._addEvolutionValue(Point(value), stat = stat)
+     * Adds a value to the evolution values
+     */
+    fun addEvolutionValue(value: Double, stat: Stat, data: Any) {
+        this._addEvolutionValue(Point(value, data), stat = stat)
     }
 
-    fun addEvolutionValue(value: Double, duration: Double, stat: Stat) {
+    fun addEvolutionValue(value: Double, duration: Double, stat: Stat, data: Any) {
-        this._addEvolutionValue(Point(value, y = duration), stat = stat)
+        this._addEvolutionValue(Point(value, y = duration, data = data), stat = stat)
     }
 
     private fun _addEvolutionValue(point: Point, stat: Stat) {
-        var evolutionValues = this._evolutionValues[stat]
+        val evolutionValues = this._evolutionValues[stat]
         if (evolutionValues != null) {
             evolutionValues.add(point)
         } else {
-            var values: MutableList<Point> = mutableListOf(point)
+            val values: MutableList<Point> = mutableListOf(point)
             this._evolutionValues[stat] = values
         }
     }
@@ -88,7 +93,7 @@ class ComputedResults(group: ComputableGroup) {
 
     fun computeStatVariations(resultsToCompare: ComputedResults) {
         this._computedStats.keys.forEach { stat ->
-            var computedStat = this.computedStat(stat)
+            val computedStat = this.computedStat(stat)
             val comparedStat = resultsToCompare.computedStat(stat)
             if (computedStat != null && comparedStat != null) {
                 computedStat.variation = (computedStat.value - comparedStat.value) / comparedStat.value
@@ -116,12 +121,51 @@ class ComputedResults(group: ComputableGroup) {
         return this._computedStats.size
     }
 
+	// MPAndroidChart
+
+	fun defaultStatEntries(stat: Stat) : Array<out Entry> {
+		return when (stat) {
+			Stat.NUMBER_OF_SETS, Stat.NUMBER_OF_GAMES -> this.barEntries(stat)
+			else -> this.singleLineEntries(stat)
+		}
+	}
+
+	fun singleLineEntries(stat: Stat) : Array<Entry> {
+		var entries = mutableListOf<Entry>()
+		this._evolutionValues[stat]?.let { points ->
+			points.forEachIndexed { index, p ->
+				entries.add(Entry(index.toFloat(), p.y.toFloat(), p.data))
+			}
+		}
+		return entries.toTypedArray()
+	}
+
+	fun durationEntries(stat: Stat) : Array<Entry> {
+		var entries = mutableListOf<Entry>()
+		this._evolutionValues[stat]?.let { points ->
+			points.forEach { p ->
+				entries.add(Entry(p.x.toFloat(), p.y.toFloat(), p.data))
+			}
+		}
+		return entries.toTypedArray()
+	}
+
+	fun barEntries(stat: Stat) : Array<BarEntry> {
+
+		var entries = arrayOf<BarEntry>()
+
+		this._evolutionValues[stat]?.let { points ->
+			points.forEach { p ->
+				entries[0] = BarEntry(p.x.toFloat(), p.y.toFloat(), p.data)
+			}
+		}
+		return entries
+	}
+
 }
 
-class Point(x: Double, y: Double) {
+class Point(val x: Double, val y: Double, val data: Any) {
-    val x: Double = x
-    val y: Double = y
 
-    constructor(x: Double) : this(x, 1.0)
+	constructor(y: Double, data: Any) : this(0.0, y, data)
 
 }

app/src/main/java/net/pokeranalytics/android/model/StatRepresentable.kt

@@ -6,10 +6,11 @@ import net.pokeranalytics.android.ui.view.RowRepresentable
 import net.pokeranalytics.android.ui.view.RowViewType
 
 
-class StatRepresentable(stat: Stat, computedStat: ComputedStat?) : RowRepresentable {
+class StatRepresentable(stat: Stat, computedStat: ComputedStat?, groupName: String = "") : RowRepresentable {
 
     var stat: Stat = stat
     var computedStat: ComputedStat? = computedStat
+    var groupName: String = groupName
 
     override val viewType: Int
         get() = RowViewType.STAT.ordinal

app/src/main/java/net/pokeranalytics/android/model/realm/ComputableResult.kt

@@ -1,11 +1,13 @@
 package net.pokeranalytics.android.model.realm
 
+import android.os.Parcel
+import android.os.Parcelable
 import io.realm.RealmObject
 import net.pokeranalytics.android.calculus.interfaces.Computable
 import net.pokeranalytics.android.model.filter.Filterable
 import net.pokeranalytics.android.model.filter.QueryCondition
 
-open class ComputableResult : RealmObject(), Computable, Filterable {
+open class ComputableResult() : RealmObject(), Computable, Filterable, Parcelable {
 
 	override var ratedNet: Double = 0.0
 
@@ -25,6 +27,16 @@ open class ComputableResult : RealmObject(), Computable, Filterable {
 
 	var session: Session? = null
 
+	constructor(parcel: Parcel) : this() {
+		ratedNet = parcel.readDouble()
+		bbNet = parcel.readDouble()
+		hasBigBlind = parcel.readInt()
+		isPositive = parcel.readInt()
+		ratedBuyin = parcel.readDouble()
+		estimatedHands = parcel.readDouble()
+		bbPer100Hands = parcel.readDouble()
+	}
+
 	fun updateWith(session: Session) {
 
 		this.sessionSet = session.sessionSet
@@ -54,7 +66,28 @@ open class ComputableResult : RealmObject(), Computable, Filterable {
 		BB_PER100HANDS("bbPer100Hands")
 	}
 
-	companion object : Filterable {
+	override fun writeToParcel(parcel: Parcel, flags: Int) {
+		parcel.writeDouble(ratedNet)
+		parcel.writeDouble(bbNet)
+		parcel.writeInt(hasBigBlind)
+		parcel.writeInt(isPositive)
+		parcel.writeDouble(ratedBuyin)
+		parcel.writeDouble(estimatedHands)
+		parcel.writeDouble(bbPer100Hands)
+	}
+
+	override fun describeContents(): Int {
+		return 0
+	}
+
+	companion object CREATOR : Parcelable.Creator<ComputableResult>, Filterable {
+		override fun createFromParcel(parcel: Parcel): ComputableResult {
+			return ComputableResult(parcel)
+		}
+
+		override fun newArray(size: Int): Array<ComputableResult?> {
+			return arrayOfNulls(size)
+		}
 
 		fun fieldNameForQueryType(queryCondition: QueryCondition): String? {
 			return "session." + Session.fieldNameForQueryType(queryCondition)
@@ -62,5 +95,4 @@ open class ComputableResult : RealmObject(), Computable, Filterable {
 
 	}
 
-
 }

app/src/main/java/net/pokeranalytics/android/model/realm/SessionSet.kt

@@ -1,5 +1,7 @@
 package net.pokeranalytics.android.model.realm
 
+import android.os.Parcel
+import android.os.Parcelable
 import io.realm.Realm
 import io.realm.RealmObject
 import io.realm.RealmResults
@@ -11,7 +13,7 @@ import net.pokeranalytics.android.model.interfaces.Timed
 import java.util.*
 
 
-open class SessionSet : RealmObject(), Timed, Filterable {
+open class SessionSet() : RealmObject(), Timed, Filterable, Parcelable {
 
 	var startDate: Date = Date()
         set(value) {
@@ -49,19 +51,6 @@ open class SessionSet : RealmObject(), Timed, Filterable {
 	 */
     override var netDuration: Long = 0L
 
-    companion object : Filterable {
-
-	    fun newInstance(realm: Realm) : SessionSet {
-		    val sessionSet: SessionSet = realm.createObject(SessionSet::class.java)
-		    return realm.copyToRealm(sessionSet)
-	    }
-
-	    fun fieldNameForQueryType(queryCondition: QueryCondition): String? {
-		    return "sessions." + Session.fieldNameForQueryType(queryCondition)
-	    }
-
-    }
-
 	fun computeStats() {
 		this.ratedNet = this.sessions?.sumByDouble { it.computableResult?.ratedNet ?: 0.0 } ?: 0.0
 		this.estimatedHands = this.sessions?.sumByDouble { it.estimatedHands } ?: 0.0
@@ -83,6 +72,13 @@ open class SessionSet : RealmObject(), Timed, Filterable {
 
     var bbNet: Double = 0.0
 
+	constructor(parcel: Parcel) : this() {
+		netDuration = parcel.readLong()
+		ratedNet = parcel.readDouble()
+		estimatedHands = parcel.readDouble()
+		bbNet = parcel.readDouble()
+	}
+
 	enum class Field(val identifier: String) {
 		RATED_NET("ratedNet"),
 		HOURLY_RATE("hourlyRate"),
@@ -91,5 +87,39 @@ open class SessionSet : RealmObject(), Timed, Filterable {
 		NET_DURATION("netDuration")
 	}
 
+	override fun writeToParcel(parcel: Parcel, flags: Int) {
+		parcel.writeLong(netDuration)
+		parcel.writeDouble(ratedNet)
+		parcel.writeDouble(estimatedHands)
+		parcel.writeDouble(bbNet)
+	}
+
+	override fun describeContents(): Int {
+		return 0
+	}
+
+	companion object CREATOR : Parcelable.Creator<SessionSet>, Filterable {
+
+		override fun createFromParcel(parcel: Parcel): SessionSet {
+			return SessionSet(parcel)
+		}
+
+		override fun newArray(size: Int): Array<SessionSet?> {
+			return arrayOfNulls(size)
+		}
+
+		// Filterable
+
+		fun newInstance(realm: Realm) : SessionSet {
+			val sessionSet: SessionSet = realm.createObject(SessionSet::class.java)
+			return realm.copyToRealm(sessionSet)
+		}
+
+		fun fieldNameForQueryType(queryCondition: QueryCondition): String? {
+			return "sessions." + Session.fieldNameForQueryType(queryCondition)
+		}
+
+	}
+
 }
 

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

@@ -9,6 +9,7 @@ import net.pokeranalytics.android.ui.activity.components.PokerAnalyticsActivity
 import net.pokeranalytics.android.ui.fragment.DataListFragment
 
 class DataListActivity : PokerAnalyticsActivity() {
+
 	enum class IntentKey(val keyName: String) {
 		DATA_TYPE("DATA_TYPE"),
 		ITEM_DELETED("ITEM_DELETED")

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

@@ -72,4 +72,5 @@ class EditableDataActivity : PokerAnalyticsActivity() {
 		fragmentTransaction.commit()
 		fragment.setData(dataType, primaryKey)
 	}
+
 }

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

@@ -0,0 +1,57 @@
+package net.pokeranalytics.android.ui.activity
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import com.github.mikephil.charting.data.Entry
+import net.pokeranalytics.android.R
+import net.pokeranalytics.android.calculus.Stat
+import net.pokeranalytics.android.ui.activity.components.PokerAnalyticsActivity
+import net.pokeranalytics.android.ui.fragment.GraphFragment
+
+class GraphActivity : PokerAnalyticsActivity() {
+
+	private enum class IntentKey(val keyName: String) {
+		STAT("STAT"),
+		ENTRIES("ENTRIES"),
+	}
+
+	companion object {
+
+		/**
+		 * Default constructor
+		 */
+		fun newInstance(context: Context, stat: Stat, entries: Array<out Entry>) {
+			val intent = Intent(context, GraphActivity::class.java)
+			intent.putExtra(IntentKey.STAT.keyName, stat.name)
+			intent.putExtra(IntentKey.ENTRIES.keyName, entries)
+			context.startActivity(intent)
+		}
+
+	}
+
+	override fun onCreate(savedInstanceState: Bundle?) {
+		super.onCreate(savedInstanceState)
+		setContentView(R.layout.activity_editable_data)
+		initUI()
+	}
+
+	/**
+	 * Init UI
+	 */
+	private fun initUI() {
+
+		val stat = Stat.valueOf(intent.getStringExtra(IntentKey.STAT.keyName))
+		val entries = intent.getParcelableArrayExtra(IntentKey.ENTRIES.keyName)
+
+		val fragmentManager = supportFragmentManager
+		val fragmentTransaction = fragmentManager.beginTransaction()
+		val fragment = GraphFragment()
+
+		fragmentTransaction.add(R.id.container, fragment)
+		fragmentTransaction.commit()
+		fragment.setData(stat, entries)
+
+	}
+
+}

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

@@ -0,0 +1,59 @@
+package net.pokeranalytics.android.ui.fragment
+
+import android.os.Bundle
+import android.os.Parcelable
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.github.mikephil.charting.data.Entry
+import com.github.mikephil.charting.data.LineData
+import com.github.mikephil.charting.data.LineDataSet
+import kotlinx.android.synthetic.main.fragment_graph.*
+import net.pokeranalytics.android.R
+import net.pokeranalytics.android.calculus.Stat
+import net.pokeranalytics.android.ui.fragment.components.PokerAnalyticsFragment
+
+interface GraphDataSource {
+
+
+}
+
+class GraphFragment : PokerAnalyticsFragment() {
+
+	lateinit var dataSource: GraphDataSource
+	lateinit var entries: Array<Parcelable>
+	lateinit var stat: Stat
+
+	companion object {
+
+
+
+	}
+
+	fun setData(stat: Stat, entries: Array<Parcelable>) {
+		this.stat = stat
+		this.entries = entries
+	}
+
+	override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+		return inflater.inflate(R.layout.fragment_graph, container, false)
+	}
+
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		initUI()
+	}
+
+	private fun initUI() {
+
+		(this.entries.toList() as MutableList<Entry>).let { entries ->
+
+			val dataSet = LineDataSet(entries, stat.name)
+			val lineData = LineData(listOf(dataSet))
+			this.chart.data = lineData
+
+		}
+
+	}
+
+}

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

@@ -14,8 +14,10 @@ import net.pokeranalytics.android.model.StatRepresentable
 import net.pokeranalytics.android.model.realm.ComputableResult
 import net.pokeranalytics.android.model.realm.Session
 import net.pokeranalytics.android.model.realm.SessionSet
+import net.pokeranalytics.android.ui.activity.GraphActivity
 import net.pokeranalytics.android.ui.adapter.DisplayDescriptor
 import net.pokeranalytics.android.ui.adapter.RowRepresentableAdapter
+import net.pokeranalytics.android.ui.adapter.RowRepresentableDelegate
 import net.pokeranalytics.android.ui.adapter.StaticRowRepresentableDataSource
 import net.pokeranalytics.android.ui.fragment.components.SessionObserverFragment
 import net.pokeranalytics.android.ui.view.RowRepresentable
@@ -25,7 +27,8 @@ import timber.log.Timber
 import java.util.*
 import kotlin.coroutines.CoroutineContext
 
-class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSource, CoroutineScope {
+class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSource, CoroutineScope,
+	RowRepresentableDelegate {
 
     override val coroutineContext: CoroutineContext
         get() = Dispatchers.Main
@@ -36,6 +39,7 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
 	private var stringTournament = ""
 
     private lateinit var statsAdapter: RowRepresentableAdapter
+	private var computedResults : List<ComputedResults>? = null
 
     companion object {
 
@@ -114,7 +118,7 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
 	    this.stringCashGame = getString(R.string.cash_game)
 	    this.stringTournament = getString(R.string.tournament)
 
-        this.statsAdapter = RowRepresentableAdapter(this)
+        this.statsAdapter = RowRepresentableAdapter(this, this)
     }
 
 	/**
@@ -131,7 +135,6 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
 		}
 	}
 
-
     private fun launchStatComputation() {
 
 	    GlobalScope.launch(coroutineContext) {
@@ -143,6 +146,7 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
 
 			    val realm = Realm.getDefaultInstance()
 			    results = createSessionGroupsAndStartCompute(realm)
+			    computedResults = results
 			    realm.close()
 
 			    val e = Date()
@@ -202,11 +206,62 @@ class StatsFragment : SessionObserverFragment(), StaticRowRepresentableDataSourc
         results.forEach { result ->
             rows.add(CustomizableRowRepresentable(title = result.group.name))
             result.group.stats?.forEach { stat ->
-                rows.add(StatRepresentable(stat, result.computedStat(stat)))
+                rows.add(StatRepresentable(stat, result.computedStat(stat), result.group.name))
             }
         }
 
         return rows
     }
 
+	// RowRepresentableDelegate
+
+	override fun onRowSelected(position: Int, row: RowRepresentable, fromAction: Boolean) {
+
+		return
+
+		if (row is StatRepresentable) {
+
+			// filter groups
+			val groupResults = this.computedResults?.filter {
+				it.group.name == row.groupName
+			}
+
+			groupResults?.firstOrNull()?.let {
+				this.launchStatComputationWithEvolution(row.stat, it.group)
+			}
+		}
+
+	}
+
+	private fun launchStatComputationWithEvolution(stat: Stat, computableGroup: ComputableGroup) {
+
+		GlobalScope.launch(coroutineContext) {
+
+			var results = listOf<ComputedResults>()
+			val test = GlobalScope.async {
+				val s = Date()
+				Timber.d(">>> start...")
+
+				val realm = Realm.getDefaultInstance()
+				val options = Calculator.Options()
+				options.evolutionValues = Calculator.Options.EvolutionValues.STANDARD
+				results = Calculator.computeGroups(listOf(computableGroup), options)
+				realm.close()
+
+				val e = Date()
+				val duration = (e.time - s.time) / 1000.0
+				Timber.d(">>> ended in ${duration} seconds")
+
+			}
+			test.await()
+
+			if (!isDetached) {
+				results.firstOrNull()?.defaultStatEntries(stat)?.let { entries ->
+					GraphActivity.newInstance(requireContext(), stat, entries)
+				}
+			}
+		}
+
+	}
+
 }

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

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+	android:id="@+id/container"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent">
+
+</FrameLayout>

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

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<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="match_parent"
+        android:layout_height="match_parent">
+
+    <com.github.mikephil.charting.charts.LineChart
+            android:id="@+id/chart"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>