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Merged
hannesa2 merged 1 commit into from
Dec 30, 2025
Merged

ViewBinding Fragments #625

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53 changes: 33 additions & 20 deletions app/src/main/kotlin/info/appdev/chartexample/fragments/BarChartFrag.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -6,55 +6,68 @@ import android.view.LayoutInflater
import android.view.MotionEvent
import android.view.View
import android.view.ViewGroup
import android.widget.FrameLayout
import androidx.fragment.app.Fragment
import info.appdev.chartexample.R
import info.appdev.chartexample.custom.MyMarkerView
import info.appdev.chartexample.databinding.FragSimpleBarBinding
import info.appdev.charting.charts.BarChart
import info.appdev.charting.listener.ChartTouchListener.ChartGesture
import info.appdev.charting.listener.OnChartGestureListener
import info.appdev.chartexample.R
import info.appdev.chartexample.custom.MyMarkerView
import timber.log.Timber

class BarChartFrag : SimpleFragment(), OnChartGestureListener {
private var chart: BarChart? = null
private lateinit var chart: BarChart

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
val v = inflater.inflate(R.layout.frag_simple_bar, container, false)
private var _binding: FragSimpleBarBinding? = null
// This property is only valid between onCreateView and onDestroyView.
private val binding get() = _binding!!

override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
_binding = FragSimpleBarBinding.inflate(inflater, container, false)
val view = binding.root

// create a new chart object
chart = BarChart(requireActivity())
chart!!.description.isEnabled = false
chart!!.onChartGestureListener = this
chart.description.isEnabled = false
chart.onChartGestureListener = this

val mv = MyMarkerView(activity, R.layout.custom_marker_view)
mv.chartView = chart // For bounds control
chart!!.setMarker(mv)
chart.setMarker(mv)

chart!!.setDrawGridBackground(false)
chart!!.setDrawBarShadow(false)
chart.setDrawGridBackground(false)
chart.setDrawBarShadow(false)

val tf = Typeface.createFromAsset(requireContext().assets, "OpenSans-Light.ttf")

chart!!.setData(generateBarData(1, 20000f))
chart.setData(generateBarData(1, 20000f))

chart!!.legend.apply {
chart.legend.apply {
typeface = tf
}

val leftAxis = chart!!.axisLeft
val leftAxis = chart.axisLeft
leftAxis.typeface = tf
leftAxis.axisMinimum = 0f // this replaces setStartAtZero(true)

chart!!.axisRight.isEnabled = false
chart.axisRight.isEnabled = false

val xAxis = chart!!.xAxis
val xAxis = chart.xAxis
xAxis.isEnabled = false

// programmatically add the chart
val parent = v.findViewById<FrameLayout>(R.id.parentLayout)
parent.addView(chart)
binding.parentLayout.addView(chart)

return view
}

return v
override fun onDestroyView() {
super.onDestroyView()
_binding = null
}

override fun onChartGestureStart(me: MotionEvent, lastPerformedGesture: ChartGesture?) {
Expand All @@ -63,7 +76,7 @@ class BarChartFrag : SimpleFragment(), OnChartGestureListener {

override fun onChartGestureEnd(me: MotionEvent, lastPerformedGesture: ChartGesture?) {
Timber.i("END")
chart!!.highlightValues(null)
chart.highlightValues(null)
}

override fun onChartLongPressed(me: MotionEvent) {
Expand Down
41 changes: 26 additions & 15 deletions app/src/main/kotlin/info/appdev/chartexample/fragments/ComplexityFragment.kt
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Expand Up @@ -6,39 +6,50 @@ import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import info.appdev.charting.charts.LineChart
import info.appdev.chartexample.R
import info.appdev.chartexample.databinding.FragSimpleLineBinding

class ComplexityFragment : SimpleFragment() {
private var chart: LineChart? = null

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
val v = inflater.inflate(R.layout.frag_simple_line, container, false)
private var _binding: FragSimpleLineBinding? = null

chart = v.findViewById(R.id.lineChart1)
// This property is only valid between onCreateView and onDestroyView.
private val binding get() = _binding!!

chart!!.description.isEnabled = false
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
_binding = FragSimpleLineBinding.inflate(inflater, container, false)
val view = binding.root

chart!!.setDrawGridBackground(false)
binding.lineChart1.description.isEnabled = false

chart!!.setData(complexity)
chart!!.animateX(3000)
binding.lineChart1.setDrawGridBackground(false)

binding.lineChart1.setData(complexity)
binding.lineChart1.animateX(3000)

val tf = Typeface.createFromAsset(requireContext().assets, "OpenSans-Light.ttf")

chart!!.legend.apply {
binding.lineChart1.legend.apply {
typeface = tf
}

val leftAxis = chart!!.axisLeft
val leftAxis = binding.lineChart1.axisLeft
leftAxis.typeface = tf

chart!!.axisRight.isEnabled = false
binding.lineChart1.axisRight.isEnabled = false

val xAxis = chart!!.xAxis
val xAxis = binding.lineChart1.xAxis
xAxis.isEnabled = false

return v
return view
}

override fun onDestroyView() {
super.onDestroyView()
_binding = null
}

companion object {
Expand Down
44 changes: 28 additions & 16 deletions app/src/main/kotlin/info/appdev/chartexample/fragments/PieChartFrag.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -10,40 +10,52 @@ import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import info.appdev.charting.charts.PieChart
import info.appdev.chartexample.databinding.FragSimplePieBinding
import info.appdev.charting.components.Legend
import info.appdev.chartexample.R

class PieChartFrag : SimpleFragment() {
private var chart: PieChart? = null

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
val v = inflater.inflate(R.layout.frag_simple_pie, container, false)
private var _binding: FragSimplePieBinding? = null

chart = v.findViewById(R.id.pieChart1)
chart!!.description.isEnabled = false
// This property is only valid between onCreateView and onDestroyView.
private val binding get() = _binding!!

override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
_binding = FragSimplePieBinding.inflate(inflater, container, false)
val view = binding.root

binding.pieChart1.description.isEnabled = false

val tf = Typeface.createFromAsset(requireContext().assets, "OpenSans-Light.ttf")

chart!!.setCenterTextTypeface(tf)
chart!!.centerText = generateCenterText()
chart!!.setCenterTextSize(10f)
chart!!.setCenterTextTypeface(tf)
binding.pieChart1.setCenterTextTypeface(tf)
binding.pieChart1.centerText = generateCenterText()
binding.pieChart1.setCenterTextSize(10f)
binding.pieChart1.setCenterTextTypeface(tf)

// radius of the center hole in percent of maximum radius
chart!!.holeRadius = 45f
chart!!.transparentCircleRadius = 50f
binding.pieChart1.holeRadius = 45f
binding.pieChart1.transparentCircleRadius = 50f

chart!!.legend.apply {
binding.pieChart1.legend.apply {
verticalAlignment = Legend.LegendVerticalAlignment.TOP
horizontalAlignment = Legend.LegendHorizontalAlignment.RIGHT
orientation = Legend.LegendOrientation.VERTICAL
setDrawInside(false)
}

chart!!.setData(generatePieData())
binding.pieChart1.setData(generatePieData())

return view
}

return v
override fun onDestroyView() {
super.onDestroyView()
_binding = null
}

private fun generateCenterText(): SpannableString {
Expand Down
46 changes: 29 additions & 17 deletions app/src/main/kotlin/info/appdev/chartexample/fragments/ScatterChartFrag.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -6,41 +6,48 @@ import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import info.appdev.charting.charts.ScatterChart
import info.appdev.charting.components.XAxis.XAxisPosition
import info.appdev.chartexample.R
import info.appdev.chartexample.custom.MyMarkerView
import info.appdev.chartexample.databinding.FragSimpleScatterBinding

class ScatterChartFrag : SimpleFragment() {
private var chart: ScatterChart? = null
private var _binding: FragSimpleScatterBinding? = null

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
val v = inflater.inflate(R.layout.frag_simple_scatter, container, false)
// This property is only valid between onCreateView and onDestroyView.
private val binding get() = _binding!!

chart = v.findViewById(R.id.scatterChart1)
chart!!.description.isEnabled = false
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
_binding = FragSimpleScatterBinding.inflate(inflater, container, false)
val view = binding.root

binding.scatterChart1.description.isEnabled = false

val tf = Typeface.createFromAsset(requireContext().assets, "OpenSans-Light.ttf")

val mv = MyMarkerView(activity, R.layout.custom_marker_view)
mv.chartView = chart // For bounds control
chart!!.setMarker(mv)
val markerView = MyMarkerView(activity, R.layout.custom_marker_view)
markerView.chartView = binding.scatterChart1 // For bounds control
binding.scatterChart1.setMarker(markerView)

chart!!.setDrawGridBackground(false)
chart!!.setData(generateScatterData(6, 10000f))
binding.scatterChart1.setDrawGridBackground(false)
binding.scatterChart1.setData(generateScatterData(6, 10000f))

val xAxis = chart!!.xAxis
val xAxis = binding.scatterChart1.xAxis
xAxis.isEnabled = true
xAxis.position = XAxisPosition.BOTTOM

val leftAxis = chart!!.axisLeft
val leftAxis = binding.scatterChart1.axisLeft
leftAxis.typeface = tf

val rightAxis = chart!!.axisRight
val rightAxis = binding.scatterChart1.axisRight
rightAxis.typeface = tf
rightAxis.setDrawGridLines(false)

chart!!.legend.apply {
binding.scatterChart1.legend.apply {
isWordWrapEnabled = true
typeface = tf
formSize = 14f
Expand All @@ -49,9 +56,14 @@ class ScatterChartFrag : SimpleFragment() {
yOffset = 13f
}

chart!!.extraBottomOffset = 16f
binding.scatterChart1.extraBottomOffset = 16f

return view
}

return v
override fun onDestroyView() {
super.onDestroyView()
_binding = null
}

companion object {
Expand Down
41 changes: 26 additions & 15 deletions app/src/main/kotlin/info/appdev/chartexample/fragments/SineCosineFragment.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -6,41 +6,52 @@ import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import info.appdev.charting.charts.LineChart
import info.appdev.chartexample.R
import info.appdev.chartexample.databinding.FragSimpleLineBinding

class SineCosineFragment : SimpleFragment() {
private var chart: LineChart? = null

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
val v = inflater.inflate(R.layout.frag_simple_line, container, false)
private var _binding: FragSimpleLineBinding? = null

chart = v.findViewById(R.id.lineChart1)
// This property is only valid between onCreateView and onDestroyView.
private val binding get() = _binding!!

chart!!.description.isEnabled = false
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
_binding = FragSimpleLineBinding.inflate(inflater, container, false)
val view = binding.root

chart!!.setDrawGridBackground(false)
binding.lineChart1.description.isEnabled = false

chart!!.setData(generateLineData())
chart!!.animateX(3000)
binding.lineChart1.setDrawGridBackground(false)

binding.lineChart1.setData(generateLineData())
binding.lineChart1.animateX(3000)

val tf = Typeface.createFromAsset(requireContext().assets, "OpenSans-Light.ttf")

chart!!.legend.apply {
binding.lineChart1.legend.apply {
typeface = tf
}

val leftAxis = chart!!.axisLeft
val leftAxis = binding.lineChart1.axisLeft
leftAxis.typeface = tf
leftAxis.axisMaximum = 1.2f
leftAxis.axisMinimum = -1.2f

chart!!.axisRight.isEnabled = false
binding.lineChart1.axisRight.isEnabled = false

val xAxis = chart!!.xAxis
val xAxis = binding.lineChart1.xAxis
xAxis.isEnabled = false

return v
return view
}

override fun onDestroyView() {
super.onDestroyView()
_binding = null
}

companion object {
Expand Down
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