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newVersion

  • IMPROVEMENT (by @lsaudon) Replace flutter_lints by very_good_analysis
  • BREAKING (by @lsaudon) Update dart sdk to 2.17.0 (flutter 3.0.0)

0.55.2

  • BUGFIX (by @imaNNeoFighT): Fix inner border of pieChart with single section, #1089
  • IMPORTANT IRAN NEEDS HELP

As you might know, Islamic Republic of Iran is murdering people in silence right now in Iran They shut the Internet down to do that. That’s why I cannot maintain this library for a while. Now we need your help, please be our voice by spreading news in your media to support us Search these hashtags:

#MahsaAmini مهسا_امینی OpIran

Also, this article might help.

0.55.1

  • BUGFIX (by @ateich): Fix infinite loop in RadarChart when all values in RadarDataSet are equal, #882.
  • BUGFIX (by @ateich): Fix uneven titles in RadarChart when using titlePositionPercentageOffset, #1074.
  • BUGFIX (by @imaNNeoFighT): Fix PieChart single section stroke issue, #1089

0.55.0

  • FEATURE (by @emelinepal): Add tooltipBorder property in [LineTouchTooltipData], [BarTouchTooltipData], [ScatterTouchTooltipData], #692.
  • BUGFIX (by @imaNNeoFighT): Fix tooltip issue on negative bar charts, #978.
  • IMPROVEMENT (by @imaNNeoFighT): Use Container to draw axis-based charts border.
  • FEATURE (by @FlorianArnould) Add the ability to select the RadarChart shape (circle or polygon), #1047.
  • BUGFIX (by @imaNNeoFighT): Fix LineChart titles problem with single FlSpot, #1053.
  • FEATURE (by @FlorianArnould) Add the ability to rotate the RadarChar titles, #883.
  • BREAKING (by @FlorianArnould) RadarChartData.getTitle have a new parameter angle and now returns a RadarChartTitle instead of a simple string. (Read our Migration Guide to learn more about it)

0.51.0

  • FEATURE (by @imaNNeoFighT): Add SideTitleWidget to help you use it in [SideTitles.getTitlesWidget]. It's a wrapper around your widget. It keeps your provided child widget close to the chart. It has angle and space properties to handle margin and rotation. There is a axisSide property that you should fill, it has provided to you in the MetaData object. Check the below sample:
getTitlesWidget: (double value, TitleMeta meta) {
  return SideTitleWidget(
    axisSide: meta.axisSide,
    space: 8.0,
    angle: 0.0,
    child: const Text("This is your widget"),
  );
},
  • IMPROVEMENT (by @imaNNeoFighT): Fix default LineChart interval issue on small view sizes, #909.

0.50.6

  • IMPROVEMENT Fix a backward compatibility issue with Flutter 3.0, #1016

0.50.5

  • IMPROVEMENT Fix test coverage problem again :/

0.50.4

  • IMPROVEMENT Fix test coverage problem

0.50.3

  • IMPROVEMENT Fix order of drawing lineChart bar indicator problem, #198.
  • FEATURE Add isStrokeJoinRound property in LineChartBarData.
  • IMPROVEMENT Upgrade to Flutter 3, #997.
  • FEATURE Add chartRendererKey property to the LineChart, BarChart, and ScatterChart. We pass it directly to our chart renderers that are responsible to render the chart itself (without anything around it like titles), #987.

0.50.1

  • BUGFIX Allow to show axisTitle without sideTitles, #963

0.50.0

This release has some breaking changes. So please check out the migration guide here

  • IMPROVEMENT Allow to return a Widget in SideTitles.getTitlesWidget instead of a String. For example, you can pass an Icon widget as a title, #183. Check below samples:

LineChartSample 8 (Source Code)

BarChartSample 7 (Source Code)

0.46.0

0.45.1

  • IMPORTANT Fuck Vladimir Putin
  • BUGFIX Fix FlSpot.nullSpot at the first of list bug, #912.
  • FEATURE Add scatterLabelSettings property in ScatterChart which lets you to add titles on the spots, #902.

0.45.0

  • BUGFIX Fix clipData implementation in ScatterChart and LineChart, #897.
  • BUGFIX Fix PieChart changing sections issue (we have disabled semantics for pieChart badgeWidgets), #861.
  • BUGFIX Fix LineChart width smaller width or height lower than 40, #869, #857.
  • BUGFIX Allow to show title when axis diff is zero, #842, #879.
  • IMPROVEMENT Improve iteration over axis values logic (it solves some minor problems on showing titles when min, max values are below than 1.0).
  • IMPROVEMENT Add baselineX and baselineY property in our axis-based charts, It fixes a problem about interval which mentioned in #893 (check this sample.
  • IMPROVEMENT Added distanceCalculator to LineTouchData which is used to calculate the distance between spots and touch events, #716, #261, #892
  • BREAKING LineTouchResponse response now contains a list of TouchLineBarSpot instead of LineBarSpot. They are ordered based on their distance to the touch event and also contain that distance.

0.41.0

  • BUGFIX Fix getNearestTouchedSpot. Previously it returned the first occurrence of a spot within the threshold, and not the nearest, #641, #645.
  • FEATURE Add textAlign property in the SideTitles, #784.
  • IMPROVEMENT Write some unit-tests and enable code coverage reports in our CI

0.40.6

  • IMPROVEMENT Fix showing zero value in side titles and grid lines when we add negative value. Now we always go through the zero value in each axis, #739.
  • BUGFIX Fix example app unsupported operation problem on web, #844.

0.40.5

  • BUGFIX Fix BarChart empty groups state error, #797.
  • BUGFIX Fix drawTooltipOnTop direction minor bug, #815.
  • BUGFIX Fix section with zero value problem in PieChart (disabled animation on changing value to zero and from zero), #817
  • BUGFIX Fix pie chart stroke problem when adding space between sections (using new approach), #818.
  • IMPROVEMENT Fix interval below one, #811

0.40.2

  • IMPROVEMENT Use 80 characters for code format line-length instead of 100 (because pub.dev works with 80 and decreased our score).

0.40.1

  • IMPROVEMENT Fix pub.dev determining web support, #780.
  • IMPROVEMENT Implement flutter_lints in the code.
  • BUGFIX Fix below/above area data transparency issue, #770.

0.40.0

  • BUGFIX Fixed pieChart centerRadius = double.infinity problem, #747.c
  • BREAKING Charts touchCallback signature has changed to (FlTouchEvent event, BaseTouchResponse? response) which FlTouchEvent determines which touch/pointer event happened (such as FlTapUpEvent, FlPanUpdateEvent, ...), and BaseTouchResponse gives us the chart response.
  • BREAKING Chart touchResponse classes don't have touchInput and clickHappened properties anymore. Use FlTouchEvent provided in the callback instead of touchInput. Check event is FlTapUpEvent to detect touch events instead of checking clickHappened;
  • IMPROVEMENT Again we support longPress touch events. check FlTouchEvent to see all kind of supported touch/pointer events (which can be FlLongPressStart, FlLongPressMoveUpdate, FlLongPressEnd, ...). Also you can check out touch handling doc, #649.
  • IMPROVEMENT Added mouseCursorResolver callback in touchData classes such as LineTouchData and BarTouchData. You can change the MouseCursor based on the provided FlTouchEvent and touchResponse using this callback. (We have used this feature in PieChartSample2)
  • BUGFIX Fixed ScatterChart default touchHandling crash
  • BUGFIX Fix text styles when updating the theme. Check this theme-aware-sample.
  • IMPROVEMENT Show narrow horizontal and vertical grid lines by default.
  • IMPROVEMENT Show all left, top (except BarChart), right, bottom titles in Axis based charts by default.
  • IMPROVEMENT Set BarChartAlignment.spaceEvenly as alignment property of BarChartData by default
  • IMPROVEMENT Allow BarChart and LineChart have empty values instead of throwing exception (we don't show anything if there is nothing provided)
  • BREAKING textStyle of ScatterTooltipItem is now nullable and optional. bottomMargin is also optional (default is zero). So both are named parameters now.
  • IMPROVEMENT We improved touch precision of ScatterChart.
  • BUGFIX Fix overlapping last gridlines on border lines problem.
  • NEWS Your donation motivates me to work more on the fl_chart and resolve more issues. Now you can buy me a coffee!

0.36.4

  • IMPROVEMENT Added borderSide property in BarChartRodData and BarChartRodStackItem to draw strokes around each bar and rod stack items, #714.
  • IMPROVEMENT Now all textStyles are nullable and theme-aware by default, #269.
  • BREAKING All getTextStyles callback now give you a context and value (previously it was only a value).
  • BUGFIX Fixed colorStops calculation which used in gradient colors, #732.

0.36.3

  • IMPROVEMENT Show proper error message when there is less than 3 RadarEntry in RadarChart, #694.
  • IMPROVEMENT Added borderSide property in PieChartSectionData to draw strokes around each section, #606.

0.36.2

0.36.1

0.36.0

  • BUGFIX Fixed bug of lerping FlSpot.nullSpot, #487.
  • BUGFIX Fixed showing tooltip problem when animating chart, #647.
  • BUGFIX Fixed RadarChart drawing problem, #627.
  • IMPROVEMENT Now SideTitles.interval is working correctly in bottomTitles in the BarChart, #648.
  • BREAKING You should provide spotsIndices instead of showingSpots in ShowingTooltipIndicators.

0.35.0

  • IMPROVEMENT Added children property in the LineTooltipItem, BarTooltipItem and ScatterTooltipItem which accepts a list of TextSpan. It allows you to have more customized texts inside the tooltip. See BarChartSample1 and ScatterSample2, #72, #294.
  • IMPROVEMENT Added getTouchLineStart and getTouchLineEnd in LineTouchData to give more customizability over showing the touch lines. see SampleLineChart9.
  • IMPROVEMENT Enabled sectionsSpace in PieChart for the web.
  • IMPROVEMENT Added Makefile commands which makes it comfortable for verifying your code before push (It is related to contributors, red more about it in CONTRIBUTING.md).
  • IMPROVEMENT Added FlDotCrossPainter which extends FlDotPainter to paint X marks on line chart spots.
  • IMPROVEMENT Added textDirection property in LineTooltipItem, BarTooltipItem and ScatterTooltipItem. It allows you to support rtl languages in tooltips.
  • IMPROVEMENT Added textDirection property in SideTitles class, #531. It allows you to support rtl languages in side titles.
  • IMPROVEMENT Added textDirection property in AxisTitles class. It allows you to support rtl languages in axis titles.
  • BUGFIX Fixed some bugs on drawing PieChart (for example when we have only one section), #582,
  • BREAKING Border of pieChart now is hide by default (you can show it using borderData: FlBorderData(show: true).
  • BREAKING You cannot set 0 value on PieChartSectionData.value anymore, instead remove it from list.
  • BREAKING Removed fullHeightTouchLine property from LineTouchData. Now you can have a full line with following snippet:
LineTouchData(
  ...
  getTouchLineStart: (barData, index) => -double.infinity // default: from bottom,
  getTouchLineEnd: (barData, index) => double.infinity //to top,
  ...
)

0.30.0

  • [IMPROVEMENT] We now use RenderObject as our default drawing system. It brings a lot of stability. Such as size handling, hitTest handling (touches), and It makes us possible to paint Widgets inside our chart (It might fix #383, #556, #582, #584, #591).
  • [IMPROVEMENT] Added Radar Chart Documentations
  • [IMPROVEMENT] Added textAlign property in the BarTooltipItem, LineTooltipItem, and ScatterTooltipItem, default is TextAlign.center.
  • [IMPROVEMENT] Added direction property in the BarTouchTooltipData, and LineTouchTooltipData to specify the position of the tooltip (can be auto, top, bottom), default is auto.
  • [IMPROVEMENT] Updated touch flow, we now use hitTest for handling touch and interactions.
  • [IMPROVEMENT] Added 'clickHappened' property in all of our TouchResponses (such as LineTouchResponse, BarTouchResponse, ...), #210.
  • [IMPROVEMENT] Added swapAnimationCurve property to all chart widgets which handles the built-in animation Curve, #436.
  • [BREAKING] Some properties in ScatterTouchResponse, and PieTouchResponse moved to a wrapper class, you need to access them through that wrapper class.
  • [BREAKING] Renamed tooltipBottomMargin to tooltipMargin property in the BarTouchTooltipData, and LineTouchTooltipData
  • [Bugfix] Fixed double.infinity in PieChartData .centerSpaceRadius, #584.

0.20.1

0.20.0-nullsafety1

  • [BREAKING] We have migrated our project to null-safety. You may need to change your source-code to compile. check migration guide.
  • [BREAKING] You cannot set null value on FlSpot any more (use FlSpot.nullSpot instead).

0.12.3

  • [Bugfix] Fixed PieChart exception bug on sections tap, #514.
  • [Bugfix] Fixed PieChart badges problem, #538.
  • [Bugfix] Fixed Bug of drawing lines with strokeWidth zero, #558.
  • [Improvement] Updated example app to support web.
  • [Improvement] Show tooltips on mouse hover on Web, and Desktop.

0.12.2

  • [Bugfix] Fixed PieChart badges draw in first frame problem, #513.
  • [Improvement] Use CanvasWrapper to proxy draw functions (It does not have any effect on the result, it makes the code testable)

0.12.1

  • [Bugfix] Fixed PieChart badges bug with re-implementing the solution, #507
  • [Bugfix] Fix the setState issue using PieChart in the ListView, #467
  • [Bugfix] Fixed formatNumber bug for negative numbers, #486.
  • [Improvement] Added applyCutOffY property in BarAreaSpotsLine to inherit cutOffY property of its parent, #478.

0.12.0

  • [Improvement] [BREAKING] Replaced color property with colors in BarChartRodData, and BackgroundBarChartRodData to support gradient in BarChart, instead of solid color, #166. Check BarChartSample3
  • [Improvement] Improved gradient stops calculating algorithm.
  • [Improvement] [BREAKING] Changed SideTitle's textStyle property to getTextStyles getter (it gives you the axis value, and you must return a TextStyle based on it), It helps you to have a different style for specific text, #439. Check it here LineChartSample3
  • [Improvement] Added badgeWidget, and badgePositionPercentageOffset in each PieChartSectionData to provide a widget to show in the chart, see this sample, #443. Providing a widget is an important step in our library, if it works perfectly, we will aplly this solution on other parts. Then I appreciate any feedback.
  • [Bugfix] Fixed aboveBarArea flickers after setState, #440.

0.11.1

  • [Bugfix] Fixed drawing BarChart rods with providing minY (for positive), maxY (for negative) values bug, #404.
  • [Bugfix] Fixed example app build fail error, by upgrading flutter_svg package to 0.18.1

0.11.0

  • [Bugfix] Prevent show ScatterSpot if show is false, #385.
  • [Improvement] Set default centerSpaceRadius to double.infinity in PieChartData, #384.
  • [Improvement] Allowed to have topTitles in the BarChart, see BarChartSample5, #394.
  • [Improvement] Added touchedStackItem and touchedStackItemIndex properties in the BarTouchedSpot to determine in which BarChartRodStackItem click happened, #393.
  • [Improvement] [BREAKING] Renamed rodStackItem to rodStackItems in BarChartRodData.

0.10.1

0.10.0

  • [IMPORTANT] BLACK LIVES MATTER
  • [Improvement] Auto calculate interval in SideTitles and FlGridData, instead of hard coding 1, to prevent some performance issues like #101, #322. see BarChartSample4.
  • [Bugfix] drawing dot on null spots
  • [Bugfix] Fixed LineChart have multiple NULL spot bug.
  • [Feature] Added checkToShowTitle property to the SideTitles, for checking show or not show titles in the provided value, #331. see LineChartSample8.
  • [Feature] Added compatibily to have customized shapes for FlDotData, just override FlDotData.etDotPainter and pass your own painter or use built-in ones, see this sample.
  • [Improvement] [BREAKING] Replaced clipToBorder with clipData in LineChartData to support clipping 4 sides of a chart separately.

0.9.4

  • [Bugfix] Fixed showing PieChart on web (we've ignored groupSpace on web, because some BlendModes are not working yet)

0.9.3

  • [BugFix] Fixed groupBarsPosition exception, #313.
  • [Improvement] Shadows default off, #316.

0.9.2

0.9.0

  • Added strokeWidth, getStrokeColor, getDotColor in the FlDotData, also removed dotColor from it (you should use getDotColor instead, it gives you more customizability), now we have more customizability on FlDotData, check line_chart_sample3, and line_chart_sample5, #233, #99, #274.
  • Added equatable library to solve some equation issues.
  • Implemented negative values feature for the BarChart, #106, #103.
  • add Equatable for all models, it leads to have a better performance.
  • Fixed a minor touch bug in the BarChart.
  • Fixed ScatterChart built-in touch behaviour.
  • Fixed drawing grid lines bug, #280.
  • Implemented FlDotData.getDotColor in a proper way, it returns a color based on the LineChartBarData color, #274, #282.
  • Updated LineChartData.showingTooltipIndicators field type to list of ShowingTooltipIndicators to have a clean naming.

0.8.7

  • Added show property in the VerticalLineLabel and set default to false, #256.
  • Fixed bug, when the screen size is square, #258.

0.8.6

  • Fixed exception on extraLinesData, #251.
  • Show extra lines value with 1 floating-point.
  • Implemented multi-section lines in LineChart, check this issue (#26) and this merge request (#252)

0.8.5

  • Added fitInsideHorizontally and fitInsideVertically in ScatterTouchTooltipData
  • Fixed clipToBorder functionality basdd on the border sides.

0.8.4-test1

  • Improved documentations

0.8.4

  • Added preventCurveOvershootingThreshold in LineChartBarData for applying prevent overshooting algorithm, #193.
  • Fixed clipToBorder bug in the LineChartData, #228, #214.
  • Removed unused enableNormalTouch property from all charts TouchData.
  • Implemented ImageAnnotations feature (added image, and sizedPicture in the VerticalLine, and the HorizontalLine, check this sample for more information.
  • Enable 'fitInsideTheChart' to support vertical tooltip overflow as well, #225.
  • BREAKING CHANGE-> changed fitInsideTheChart to fitInsideHorizontally and added fitInsideVertically to support both sides, #225.

0.8.3

  • prevent to set BorderRadius with numbers larger than (width / 2), fixed #200.
  • added fitInsideTheChart property inside BarTouchTooltipData and LineTouchTooltipData to force tooltip draw inside the chart (shift it to the chart), fixed #159.

0.8.2

0.8.1

  • yaaay, added some basic unit tests
  • skipped the first and the last grid lines from drawing, #174.
  • prevent to draw touchedSpotDot if show is false, #180.
  • improved paint order, more details in #175.
  • added possibility to set double.nan in centerSpaceRadius for the PieChart to let it to be calculated according to the view size, fixed #179.

0.8.0

  • added functionallity to have dashed lines, in everywhere we draw line, there should be a property called dashArray (for example check LineChartBarData, and see LineChartSample8)
  • BREAKING CHANGE:
  • swapped HorizontalExtraLines, and VerticalExtraLines functionalities (now it has a well definition)
  • and also removed showVerticalLines, and showHorizontalLines from ExtraLinesData, if the horizontalLines, or verticalLines is empty we don't show them

0.7.0

  • added rangeAnnotations in the LineChartData to show range annotations, #163.
  • removed isRound fiend in the BarChartRodData to add more customizability, and fixed #147 bug.
  • fixed sever bug of click on pie chart, #146.

0.6.3

  • Fixed drawing borddr bug, #143.
  • Respect text scale factor when drawing text.

0.6.2

0.6.1

0.6.0

  • fixed calculating size for handling touches bug, #126
  • added rotateAngle property to rotate the SideTitles, fixed issue #75 , see in this sample
  • BREAKING CHANGES:
  • some property names updated in the FlGridData: drawHorizontalGrid -> drawHorizontalLine, getDrawingHorizontalGridLine -> getDrawingHorizontalLine, checkToShowHorizontalGrid -> checkToShowHorizontalLine (and same for vertical properties), fixed issue #92

0.5.2

  • drawing titles using targetData instead of animating data, fixed issue #130.

0.5.1

  • prevent to show touch indicators if barData.show is false in LineChart, #125.

0.5.0

0.4.3

  • fixed a size bug, #100.
  • direction support for gradient on the LineChart (added gradientFrom and gradientTo in the LineChartBarData).

0.4.2

  • implemented stacked bar chart, check the samples
  • added `groupSpace in BarChartData to apply space between bar groups
  • fixed drawing left and right titles of the BarChart
  • fixed showing gridLines bug (the grid line of exact max value of each direction doesn't show)

0.4.1

  • fixed handling disabled handleBuiltInTouches state bug

0.4.0

  • BIG BREAKING CHANGES
  • There is no FlChart class anymore, instead use LineChart, BarChart, and PieChart directly as a widget.
  • Touch handling system is improved and for sure we have some changes, there is no touchedResultSink anymore and use touchCallback function which is added to each TouchData like (LineTouchData), read more.
  • TouchTooltipData class inside LineTouchData and BarTouchData renamed to LineTouchTooltipData and BarTouchTooltipData respectively, and also TooltipItem class renamed to LineTooltipItem and BarTooltipItem.
  • spots inside LineTouchResponse renamed to lineBarSpots and type changed from LineTouchedSpot to LineBarSpot.
  • FlTouchNormapInput renamed to FlTouchNormalInput (fixed typo)
  • added showingTooltipIndicators in LineChartData to show manually tooltips in LineChart.
  • added showingIndicators in LineChartBarData to show manually indicators in LineChart.
  • added showingTooltipIndicators in BarChartGroupData to show manually tooltips in BarChart.

0.3.4

  • BREAKING CHANGES
  • swapped horizontal and vertical semantics in FlGridData, fixed this issue.

0.3.3

  • BREAKING CHANGES
  • added support for drawing below and above areas separately in LineChart
  • added cutOffY feature in LineChart, see this issue
  • added aboveBarData in LineChartBarData
  • BelowBarData class renamed to BarAreaData to reuse for both above and below areas
  • belowSpotsLine renamed to spotsLine in BarAreaData
  • cutOffY and applyCutOffY fields are added in BarAreaData to handle cutting of drawing below or above area
  • BelowSpotsLine renamed to BarAreaSpotsLine, and inside it checkToShowSpotBelowLine renamed to checkToShowSpotLine

0.3.2

  • provided default size (square with 30% smaller than screen) for the FLChart, fixed this issue.

0.3.1

0.3.0

0.2.2

  • fixed a typo on CHANGELOG
  • reformatted dart files with flutter format command

0.2.1

  • fixed #64, added a technical debt :(

0.2.0

  • fixed a critical got stuck in draw loop bug,
  • set BarChartGroupData x as required property to keep consistency and prevent unpredictable bugs

0.1.6

  • added enableNormalTouch property to chart's TouchData to handle normal taps, and enabled by default.

0.1.5

  • reverted getPixelY() on axis_chart_painter to solve the regression bug (fixed issue #48)
  • (fix) BelowBar considers its own color stops refs #46

0.1.4

  • bugfix -> fixed draw bug on BarChart when y value is very low in high scale y values (#43).

0.1.3

  • added SideTitles class to hold titles representation data, and used in FlTitlesData to show left, top, right, bottom titles, instead of legacy direct parameters, and implemented a reversed chart sample using this update.

0.1.2

  • added preventCurveOverShooting on BarData, check this issue

0.1.1

  • nothing important

0.1.0

  • added Touch Interactivity, read more about it here

0.0.8

  • added backgroundColor to axis based charts (LineChart, BarChart) to draw a solid background color behind the chart
  • added getDrawingHorizontalGridLine, getDrawingVerticalGridLine on FlGridData to determine how(color, strokeWidth) the grid lines should be drawn with the given value on FlGridLine

0.0.7

  • added ExtraLinesData in the LineChartData to draw extra horizontal and vertical lines on LineChart
  • added BelowSpotsLine in the BlowBarData to draw lines from spot to the bottom of chart on LineChart

0.0.6

  • fixed charts repainting bug, #16

0.0.5

  • added clipToBorder to the LineChartData to clip the drawing to the border, #3

0.0.4

  • fixed bug of adding bar with y = 0 on bar chart #13

0.0.3

  • renamed FlChartWidget to FlChart (our main widget) and now you have to import package:fl_chart/fl_chart.dart instead of package:fl_chart/fl_chart_widget.dart
  • renamed FlChart* to BaseChart* (parent class of our charts like PieChart)
  • renamed FlAxisChart* to AxisChart*

0.0.2

  • fixed minX, maxX functionality on LineChart
  • restricted to access private classes of the library

0.0.1 - Released on (2019 June 4)