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hannesa2 merged 1 commit into from
Dec 15, 2025
Merged

View binding #476

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119 changes: 55 additions & 64 deletions app/src/main/kotlin/info/appdev/chartexample/HorizontalBarChartActivity.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -10,10 +10,8 @@ import android.view.Menu
import android.view.MenuItem
import android.widget.SeekBar
import android.widget.SeekBar.OnSeekBarChangeListener
import android.widget.TextView
import androidx.core.content.ContextCompat
import androidx.core.content.res.ResourcesCompat
import com.github.mikephil.charting.charts.HorizontalBarChart
import com.github.mikephil.charting.components.Legend
import com.github.mikephil.charting.components.XAxis.XAxisPosition
import com.github.mikephil.charting.data.BarData
Expand All @@ -27,77 +25,70 @@ import com.github.mikephil.charting.utils.MPPointF
import info.appdev.chartexample.DataTools.Companion.getValues
import info.appdev.chartexample.notimportant.DemoBase
import androidx.core.net.toUri
import info.appdev.chartexample.databinding.ActivityHorizontalbarchartBinding

class HorizontalBarChartActivity : DemoBase(), OnSeekBarChangeListener, OnChartValueSelectedListener {
private var chart: HorizontalBarChart? = null
private var seekBarX: SeekBar? = null
private var seekBarY: SeekBar? = null
private var tvX: TextView? = null
private var tvY: TextView? = null

private lateinit var binding: ActivityHorizontalbarchartBinding

override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_horizontalbarchart)

tvX = findViewById(R.id.tvXMax)
tvY = findViewById(R.id.tvYMax)

seekBarX = findViewById(R.id.seekBarX)
seekBarY = findViewById(R.id.seekBarY)
binding = ActivityHorizontalbarchartBinding.inflate(layoutInflater)
val view = binding.root
setContentView(view)

seekBarY!!.setOnSeekBarChangeListener(this)
seekBarX!!.setOnSeekBarChangeListener(this)
binding.seekBarY.setOnSeekBarChangeListener(this)
binding.seekBarX.setOnSeekBarChangeListener(this)

chart = findViewById(R.id.chart1)
chart!!.setOnChartValueSelectedListener(this)
binding.chart1.setOnChartValueSelectedListener(this)

// chart.setHighlightEnabled(false);
chart!!.setDrawBarShadow(false)
binding.chart1.setDrawBarShadow(false)

chart!!.setDrawValueAboveBar(true)
binding.chart1.setDrawValueAboveBar(true)

chart!!.description.isEnabled = false
binding.chart1.description.isEnabled = false

// if more than 60 entries are displayed in the chart, no values will be
// drawn
chart!!.setMaxVisibleValueCount(60)
binding.chart1.setMaxVisibleValueCount(60)

// scaling can now only be done on x- and y-axis separately
chart!!.setPinchZoom(false)
binding.chart1.setPinchZoom(false)

// draw shadows for each bar that show the maximum value
// chart.setDrawBarShadow(true);
chart!!.setDrawGridBackground(false)
binding.chart1.setDrawGridBackground(false)

val xl = chart!!.xAxis
val xl = binding.chart1.xAxis
xl.position = XAxisPosition.BOTTOM
xl.typeface = tfLight
xl.setDrawAxisLine(true)
xl.setDrawGridLines(false)
xl.setGranularity(10f)

val yl = chart!!.axisLeft
val yl = binding.chart1.axisLeft
yl.typeface = tfLight
yl.setDrawAxisLine(true)
yl.setDrawGridLines(true)
yl.setAxisMinimum(0f) // this replaces setStartAtZero(true)

// yl.setInverted(true);
val yr = chart!!.axisRight
val yr = binding.chart1.axisRight
yr.typeface = tfLight
yr.setDrawAxisLine(true)
yr.setDrawGridLines(false)
yr.setAxisMinimum(0f) // this replaces setStartAtZero(true)

// yr.setInverted(true);
chart!!.setFitBars(true)
chart!!.animateY(2500)
binding.chart1.setFitBars(true)
binding.chart1.animateY(2500)

// setting data
seekBarY!!.progress = 50
seekBarX!!.progress = 12
binding.seekBarY.progress = 50
binding.seekBarX.progress = 12

val l = chart!!.legend
val l = binding.chart1.legend
l.verticalAlignment = Legend.LegendVerticalAlignment.BOTTOM
l.horizontalAlignment = Legend.LegendHorizontalAlignment.LEFT
l.orientation = Legend.LegendOrientation.HORIZONTAL
Expand All @@ -124,13 +115,13 @@ class HorizontalBarChartActivity : DemoBase(), OnSeekBarChangeListener, OnChartV

val set1: BarDataSet

if (chart!!.data != null &&
chart!!.data!!.getDataSetCount() > 0
if (binding.chart1.data != null &&
binding.chart1.data!!.getDataSetCount() > 0
) {
set1 = chart!!.data!!.getDataSetByIndex(0) as BarDataSet
set1 = binding.chart1.data!!.getDataSetByIndex(0) as BarDataSet
set1.setEntries(values)
chart!!.data!!.notifyDataChanged()
chart!!.notifyDataSetChanged()
binding.chart1.data!!.notifyDataChanged()
binding.chart1.notifyDataSetChanged()
} else {
set1 = BarDataSet(values, "DataSet 1")

Expand All @@ -143,7 +134,7 @@ class HorizontalBarChartActivity : DemoBase(), OnSeekBarChangeListener, OnChartV
data.setValueTextSize(10f)
data.setValueTypeface(tfLight)
data.barWidth = barWidth
chart!!.setData(data)
binding.chart1.setData(data)
}
}

Expand All @@ -162,85 +153,85 @@ class HorizontalBarChartActivity : DemoBase(), OnSeekBarChangeListener, OnChartV
}

R.id.actionToggleValues -> {
val sets = chart!!.data!!
val sets = binding.chart1.data!!
.dataSets

for (iSet in sets) {
iSet.setDrawValues(!iSet.isDrawValuesEnabled())
}

chart!!.invalidate()
binding.chart1.invalidate()
}

R.id.actionToggleIcons -> {
val sets = chart!!.data!!
val sets = binding.chart1.data!!
.dataSets

for (iSet in sets) {
iSet.setDrawIcons(!iSet.isDrawIconsEnabled())
}

chart!!.invalidate()
binding.chart1.invalidate()
}

R.id.actionToggleHighlight -> {
if (chart!!.data != null) {
chart!!.data!!.isHighlightEnabled = !chart!!.data!!.isHighlightEnabled()
chart!!.invalidate()
if (binding.chart1.data != null) {
binding.chart1.data!!.isHighlightEnabled = !binding.chart1.data!!.isHighlightEnabled()
binding.chart1.invalidate()
}
}

R.id.actionTogglePinch -> {
chart!!.setPinchZoom(!chart!!.isPinchZoomEnabled)
binding.chart1.setPinchZoom(!binding.chart1.isPinchZoomEnabled)

chart!!.invalidate()
binding.chart1.invalidate()
}

R.id.actionToggleAutoScaleMinMax -> {
chart!!.isAutoScaleMinMaxEnabled = !chart!!.isAutoScaleMinMaxEnabled
chart!!.notifyDataSetChanged()
binding.chart1.isAutoScaleMinMaxEnabled = !binding.chart1.isAutoScaleMinMaxEnabled
binding.chart1.notifyDataSetChanged()
}

R.id.actionToggleBarBorders -> {
for (set in chart!!.data!!.dataSets) (set as BarDataSet).barBorderWidth = if (set.barBorderWidth == 1f) 0f else 1f
for (set in binding.chart1.data!!.dataSets) (set as BarDataSet).barBorderWidth = if (set.barBorderWidth == 1f) 0f else 1f

chart!!.invalidate()
binding.chart1.invalidate()
}

R.id.animateX -> {
chart!!.animateX(2000)
binding.chart1.animateX(2000)
}

R.id.animateY -> {
chart!!.animateY(2000)
binding.chart1.animateY(2000)
}

R.id.animateXY -> {
chart!!.animateXY(2000, 2000)
binding.chart1.animateXY(2000, 2000)
}

R.id.actionSave -> {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
saveToGallery()
} else {
requestStoragePermission(chart)
requestStoragePermission(binding.chart1)
}
}
}
return true
}

override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
tvX!!.text = seekBarX!!.progress.toString()
tvY!!.text = seekBarY!!.progress.toString()
binding.tvXMax.text = binding.seekBarX.progress.toString()
binding.tvYMax.text = binding.seekBarY.progress.toString()

setData(seekBarX!!.progress, seekBarY!!.progress.toFloat())
chart!!.setFitBars(true)
chart!!.invalidate()
setData(binding.seekBarX.progress, binding.seekBarY.progress.toFloat())
binding.chart1.setFitBars(true)
binding.chart1.invalidate()
}

override fun saveToGallery() {
saveToGallery(chart, "HorizontalBarChartActivity")
saveToGallery(binding.chart1, "HorizontalBarChartActivity")
}

override fun onStartTrackingTouch(seekBar: SeekBar?) {}
Expand All @@ -251,10 +242,10 @@ class HorizontalBarChartActivity : DemoBase(), OnSeekBarChangeListener, OnChartV

override fun onValueSelected(entry: Entry, highlight: Highlight) {
val bounds = mOnValueSelectedRectF
chart!!.getBarBounds(entry as BarEntry, bounds)
binding.chart1.getBarBounds(entry as BarEntry, bounds)

val position = chart!!.getPosition(
entry, chart!!.data!!.getDataSetByIndex(highlight.dataSetIndex)
val position = binding.chart1.getPosition(
entry, binding.chart1.data!!.getDataSetByIndex(highlight.dataSetIndex)
.getAxisDependency()
)

Expand Down
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