add pie chart

app/build.gradle.kts

@@ -59,6 +59,8 @@ dependencies {
     implementation(libs.androidx.work.runtime.ktx)
     implementation("androidx.compose.runtime:runtime-livedata:1.0.5")
     implementation("androidx.compose.runtime:runtime-rxjava2:1.0.5")
+    implementation("com.github.AnyChart:AnyChart-Android:1.1.5")
+    implementation("com.github.PhilJay:MPAndroidChart:v3.1.0")
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)

app/src/main/java/com/example/myapplication/ui/notifications/NotificationsFragment.kt

 package com.example.myapplication.ui.notifications
 
 import android.os.Bundle
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
+import com.example.myapplication.R
 import com.example.myapplication.databinding.FragmentNotificationsBinding
+import com.example.myapplication.util.PercentageConverter
+import com.github.mikephil.charting.charts.PieChart
+import com.github.mikephil.charting.data.PieData
+import com.github.mikephil.charting.data.PieDataSet
+import com.github.mikephil.charting.data.PieEntry
+import com.github.mikephil.charting.utils.ColorTemplate
 
 class NotificationsFragment : Fragment() {
 
@@ -32,6 +40,36 @@ class NotificationsFragment : Fragment() {
         notificationsViewModel.text.observe(viewLifecycleOwner) {
             textView.text = it
         }
+
+        val piechart = root.findViewById<PieChart>(R.id.pie_chart)
+
+        // temporary datas
+        val dataValues = arrayOf(10000, 20000, 30000, 40000, 100000, 50000)
+        val labels = arrayOf("Pembelian", "Pengeluaran", "Pengeluaran", "Pembelian", "Pengeluaran", "Pengeluaran")
+
+        val labelMap = mutableMapOf<String, Float>()
+        for (i in labels.indices) {
+            val label = labels[i]
+            val value = dataValues[i].toFloat()
+            labelMap[label] = labelMap.getOrDefault(label, 0f) + value
+        }
+
+        val total = dataValues.sum()
+        val entries = labelMap.map { (label, value) -> PieEntry(value/total, label + ": ${value}") }
+
+        val piedataset = PieDataSet(entries, "Pie Chart Data")
+        piedataset.colors = ColorTemplate.COLORFUL_COLORS.asList()
+        piedataset.valueTextSize = 12f
+
+        val data = PieData(piedataset)
+
+        piechart.data = data
+
+        val dataSet = piechart.data.dataSets[0]
+        dataSet.valueFormatter = PercentageConverter()
+
+        piechart.invalidate()
+
         return root
     }
 

app/src/main/java/com/example/myapplication/util/PercentageConverter.kt

+package com.example.myapplication.util
+
+import com.github.mikephil.charting.formatter.ValueFormatter
+
+class PercentageConverter : ValueFormatter() {
+    override fun getFormattedValue(value: Float): String {
+        return "${value * 100}%"
+    }
+}
\ No newline at end of file

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

@@ -11,12 +11,23 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginStart="8dp"
-        android:layout_marginTop="8dp"
         android:layout_marginEnd="8dp"
         android:textAlignment="center"
         android:textSize="20sp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="1.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.0" />
+
+    <com.github.mikephil.charting.charts.PieChart
+        android:id="@+id/pie_chart"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

settings.gradle.kts

@@ -7,6 +7,7 @@ pluginManagement {
                 includeGroupByRegex("androidx.*")
             }
         }
+        maven ("https://jitpack.io")
         mavenCentral()
         gradlePluginPortal()
     }
@@ -16,6 +17,7 @@ dependencyResolutionManagement {
     repositories {
         google()
         mavenCentral()
+        maven ("https://jitpack.io")
     }
 }