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Questions tagged [flutter-charts]

12 questions
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Enable duplicate columns in StackedColumnChart in flutter

I am using syncfusion_flutter_charts library 20.4.51 to make charts. My problem is that when the dataChart is repeated, its column is not displayed. For example, in the code below, two columns are displayed instead of three. my code: import…
jessi cas
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How to convert T(Thousand) to (K) in Indian Locale for compact currency, in Syncfusion Charts in Flutter

I am using syncfusion charts where I need to display the Y axis in compact format. Syncfusion by default offers a parameter in NumberFormat from intl to allow formatting. But the compact number symbols used in the library is…
Vetrivelu Murugesan
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How to add tooltip in fl chart flutter

I am using fl chart but I want when user hover on the chart a tooltip should be displayed where value of that bar should be displayed. How can I do this? Here is my code barTouchData: BarTouchData( touchTooltipData:…
Hasnain Bhatti
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Custom Pie chart in flutter

I am trying to build a pie chart like this enter image description here I have tried library but I am unable to achieve this type of chart. Is there any way to build a chart like this in flutter.
Hasnain Bhatti
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Flutter chart grouped by day, month and year X-Axis value

i am trying to implement chart using syncfusion_flutter_charts and the requirement i have is for this is for X-Axis i want to group day with month and year. Watever data i have for date i want to show as X-Axis value and for that i am using…
shilpa vania
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Syncfusion flutter: how to use plot bands with chart controller

I would like to have chartSeriesController, so that I don't have to update state whenever new data arrives. I'm using chartSeriesController, and it works ok. State doesn't get updated for data points (which improves performance drastically), but…
May
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How to render a Flutter chart using the JSON data?

I am new to flutter can someone please help me how to render chart using JSON data. This is my JSON data. { "data": { "container_id": 123, "container_serial_no": "CM22TLB101", "readings": [ { …
Parithi
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Customize the label in syncfusion_flutter_charts and adding extra padding

I am a new developer in flutter. I am developing a bar graph using syncfusion_flutter_charts in flutter. This is what I want to achieve in flutter. Expected Graph. And this is what I achieved after hours of struggle. Achieved Graph You notice that…
Umar Ghaffar
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I would like to create a bar chart like this using flutter, which package can I use?

I tried StackedColumn100Series but I couldn't customize it the way I want.
Godwill Monthe
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1 answer

Unhandled Exception: type '(dynamic) => ReadingModel' is not a subtype of type '(String, dynamic) = > MapEntry' of 'transform'

I am having error : Unhandled Exception: type '(dynamic) => ReadingModel' is not a subtype of type '(String, dynamic) => MapEntry' of 'transform' when I want to used the data from Realtime Firebase Database to be displayed in…
Nur Haslina
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How to set Minimum and Maximum Values of x and y axis in Flutter Charts?

Right now I am passing the list of two data's Timer1 and FP7 and the wave is also coming. But now I want to set this in Intervals of 10 seconds. I am using syncfusion Library and reffering this This Link. But I am not able to set Intervals. Can…
kiranaa
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Optional stroke on Flutter charts bar chart

I have a charts.BarChart in which I want to highlight one of the bars in the chart by adding a border to the bar. This is possible to do by following this example: I can use colorFn and fillColorFn to color the border and the interior of the bar…
fuglede
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