I am implementing a Pie chart and I am unable to hide Y values.
I tried setting dataSet.drawValuesEnabled = NO but this hid both X and Y labels.
On the contrary I am able to hide X labels by [_chartView setDrawSliceTextEnabled:NO]

When I try to build ChartsDemo, Xcode complains about ChartsDemo-Swift.h not being found in a few .m files whicj have #import "ChartsDemo-Swift.h" in them.

I can't find the file anywhere in the project as well.

i am new to iOS and swift can please send me the sample swift chart project ?

It took me a while to figure this out, but I couldn't get the charts to draw unless the chart view was initialized with a frame.

There would be two solutions to this, either support changing the frame of the view or do something drastically like putting a fatalError() in the init() method, to prevent using that.

var lineChart = LineChartView() // won't draw any chart
var lineChart = LineChartView(frame: view.bounds) // will draw charts with the specified frame

I might write a pull request with a fix, but at least it is reported now.

Best,
Simon

Hello,

on the function for Pie chart
-(void)chartValueSelected:(ChartViewBase * __nonnull)chartView entry:(ChartDataEntry * __nonnull)entry dataSetIndex:(NSInteger)dataSetIndex highlight:(ChartHighlight * __nonnull)highlight

the entry is not good and dataSetIndex is set to 0

could you explained me what i must do for getting the good entry?

Have a good day

Amandine

ChartXAxis raised an unresolved identifier CGFloat error when used in an iOS 7 project (no dynamic framework).

Simulator Works fine but when running on an iPhone I get this error.
Xcode 6.3.1 and iOS 8.3 Deployment.
Any help?

dyld: Library not loaded: @rpath/Charts.framework/Charts
Referenced from: /private/var/mobile/Containers/Bundle/Application/F1F8EA37-A2F3-4078-8F65-9291C708B698/stepz.app/stepz
Reason: image not found
(lldb)

Any chance of porting this to OSX?

var value = BarChartDataEntry(values: self.smImg[i], xIndex: i) 

error: Use of unresolved identifier 'smimg'

s.ios.deployment_target = "8.0"

[!] The platform of the target Pods (iOS 7.0) is not compatible with Charts (2.0.9) which has a minimum requirement of iOS 8.0.

Looked at android wiki, but did not find the possibility to name x or y axis.

Is that possible?

I dragged all of .swift files into my project, then build the project, 400+ errors appeared, it seemed like the codes can't recognize UIKit, I had to add a line import UIKit manually in every .swift file.
Is there anything wrong in my steps?
BTW: This charts library is really powerful!

when i open charts demo.xcodeproj in Xcode it consist of charts.xcodeproj.is it possible to directly take .swift files from charts and implement in charts demo project with out importing whole charts.xcodeproj

Hi, may I know is there are way for me to overlay line graph above a candle stick graph with synchronise xy axis. I tried to put the same values to each graphs and positioned them starts from zero but the axis are not tally (you can see the candlestick 185 is lower than line graph's 180 y-axis.

Thanks

Hi,

Firstly great initiative. I've been looking for a good charting library for sometime now. Highly appreciated. I tried testing this today and getting the above error. I'm trying this in Xcode Version 6.3 (6D520o).

It is happening at two files in the library. I'm posting the final error message for both of them

While emitting IR SIL function @_TFC6Charts21CombinedChartRenderer15createRenderersfS0_FT_T_ for 'createRenderers' at /ios-charts/Charts/Classes/Renderers/CombinedChartRenderer.swift:50:14

While emitting IR SIL function @_TFC6Charts19ChartLegendRenderer12renderLegendfS0_FT7contextCSo9CGContext6legendGSQCS_11ChartLegend__T_ for 'renderLegend' at /ios-charts/Charts/Classes/Renderers/ChartLegendRenderer.swift:104:12

Can you let me know how to get rid of those ?

Tried :

1. When I comment out the switch cases in the respective functions (createRenderers, renderLegend) it compiles fine. Although I hardly think it's a solution.

This looks great. Is there support for interfacing with core data such that not all data needs to be pushed into the chart but can be pulled as needed?

Perhaps you could point me to the proper API.

Thanks!

When I drag line chart from left to right, the animation seems so angular, I wonder is there a inertia effect in the chart, just makes the dragging animation more smooth.
Thanks! Waiting for reply.

I try to import to one project (teste). When I build the "#import teste-Swift.h" can't be found, resulting in the "Cannot find protocol declaration for 'ChartViewDelegate'. What I'm doing wrong?

Hello there,

Am plotting 6 dates on x axis with format "dd/MM/yy" but the font size of each label doesn't auto shrink and it looks bad. Can i show these values rotated by 45 degrees or is anything similar to text autoshrink.

If not these 2 features will be good for enhancements

Thanks,
Adam

Hello
i would like to thank you for open sourcing this beast of a library. You have made our lives a lot easier.
Now my question is regarding the yOffset of the legend for the pie charts.
I am showing the legend on the center of the pie chart and i am using yOffset as well.
As i can see in the chartlegendrendered the yOffset is not taken into account when the legend's position is PiechartCenter.
so should this:
var posY = (viewPortHandler.chartHeight / 2.0 - _legend.neededHeight / 2.0);
be replaced with this:
var posY = (viewPortHandler.chartHeight / 2.0 - _legend.neededHeight / 2.0) + (_legend.yOffset);

i would appreciate your help on this
thanks

How I can deal with chart if the titles is more long

Dears
I need version to be compatible with Xcode 6.2 no need to work with Xcode 6.3 beta , is it available ?

When you zoom in on a chart using a pinch gesture, the charts are sometimes being panned to a different position once the pinch gesture has ended.
You can, for instance, check the CandleStickChart in your demo project. Other chart types show this as well, though.

I compiled it with xcode 6.2 and 6.3 beta 4 and got 357 errors mostly from every time you call "as!"

Before I go through and manually fix all the syntax errors, I just wanted to double check with you that I'm not missing a step..

Hi @danielgindi

Nice project! I was wondering if you would be willing to support Carthage. All that's needed to support it is setup your Charts.framework scheme to be shared. I've created a pull request in case you're interested.

There are a lot simple properties (like BOOLs for configuring lineChart) that can be easily tweaked from interface builder.

http://nshipster.com/ibinspectable-ibdesignable/

What do you think? I can submit a pull-request if the idea works for you.

I alwas get this runtime error when switching to the viewcontroller where the LineChartView is placed.
As proposed in this case of error I added "-all_load -ObjC" to the "Other Linker Flags" in project and targets settings, but this error still comes up. Any hint?

Hi, thanks for the great library! Is it possible to add an inner padding to x axes as shown in the picture below?

I.e., both the first and last points and xAxis labels are inset by ~15px. Would be super useful. Thanks!

Hi there,

first of all - thanks for providing this framework. It's exactly what I've been looking for for years.

A problem I am currently facing is that the cubic line charts in my app are currently drawn based on the amount of values in the Set/Array (i.e. if there are 5 values to draw in a rect which is 200px wide, the x-distance between the graph points is 40px).
However, in many use cases, drawing the chart based on NSDates makes a lot of sense. If you for example think about stock prices: a specific stock price is always associated to a specific date & time.

Maybe I've just overseen this option.
Can this already be done with ios-charts? If not, are there plans to implement this option?

Thanks for the port.

Any way to get a swift demo?

Thanks again!

edit: Please disregard the original question about Cocoapods support.

I can't seem to find this repo from the Cocoapods website, can anyone push it to the main trunk?

edit 2: found it, it's called Charts. Sorry for the trouble guys

In case of Line Chart, whenever user is tapping on the small circle(data point), a Popover is displaying to user and i want to change the color of this specific data point(small circle only) instead of color of whole line chart.

Is there any way to do this ?

Hi

I am trying to build a very simple code using swift.
But I can't figure out how can I import the Classes.

When I set the view to be PieChartView and create a :
@IBOutlet weak var testView: PieChartView!

I got "use of undeclared type: PieChartView

I did try to import PieChartView, but xcode can't find it.

I am using Xcode 6.3 beta 4 and already setup the "Embedded Binaries" and "Linked Frameworks and Libraries" to the Charts.framework.

Also I can't find one sample code of swift on the web.

Thanks

Hi,

Can you tell me why this project is not in the CocoaPod spec?

Hello. Am using the LineChartView and i have noticed that while zooming (pinch) the last value of the line is not shown. You can't even scroll to that value. What i do is am pinch zooming in and at a certain level of zooming i cant scroll to the last item value. The value is not visible in the screen except the line going to that value.

Additionally, can i draw the line skipping the first and the last value as a result my line will not touching charts edges?

In a CombinedChart you can't combine CandleChartData with other data types.
Add for example BarChartData or LineChartData to it and the candle stick chart won't get rendered.

Nevermind, that was an issue on my side!

How can I use UISwipeGestureRecognizer on chartView? I wrote some code but it didn't work.

• (void)viewDidLoad
  {
  UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(slideToRightWithGestureRecognizer:)];
  swipeRight.direction = UISwipeGestureRecognizerDirectionRight;

  [_chartView addGestureRecognizer:swipeRight];
  }

-(void)slideToRightWithGestureRecognizer:(UISwipeGestureRecognizer *)gestureRecognizer{
NSLog(@"here");
}

Are there any plans to enhance the performance of the library in a way Philip did with MPAndroidCharts?
With his enhancements it is now possible to render thousands of data points smoothly on Android.
I've had a quick glance at the ios-charts implementation and from what I've seen it is based on the original MPAndroidCharts implementation without the latest performance enhancements.

Having it render thousands of points as well would be HUGE plus for the library as it would effectively render all commercial versions useless (most of which are a waste of time and money anyways).

I just synced latest code and tries to run the demo, but I get tons of compiler errors. What configuration I need to set for compiling your demo code?

I compile with Xcode 6.2, and there are a lot of errors. like:

1. @objc is only available for class type.
2. as! should be as.

for me, these look like the code is written in old swift(it changes a lot).

Xcode 6.3 and iOS 8.3 Deployment.
Any help?

dyld: Library not loaded: @rpath/libswiftCore.dylib
Referenced from: /private/var/mobile/Containers/Bundle/Application/37604CDA-D682-424D-A215-8FC42D486884/PatientApp.app/Frameworks/Charts.framework/Charts
Reason: image not found
(lldb)

I have two datasets, yellow and green and want to have two distinct Y axis for them. Is that possible?

When running your ChartsDemo app. I'm presented with the following errors:

dyld: Library not loaded: @rpath/Charts.framework/Charts
Referenced from: /private/var/mobile/Containers/Bundle/Application/9F8BD568-2130-48D8-9F62-E123EB2451BA/ChartsDemo.app/ChartsDemo
Reason: image not found
(lldb)

It's also written in Obj-c and not swift. Making it very difficult to translate for developers who havn't learned Obj-C to figure out how you're supposed to implement these charts?

HI.Good job.
I have use android chart library.and then i found this great library.
But i have a question .how to add a line-chart view in my cell ?

Hello am using a LineChartView. Can i draw the line skipping the first and the last value as a result my line will not touching charts edges?

How i fix it?

I have faced problem which describe by ( ChartsDemo-swift.h file not found ) i want to focused that everything is working correctly only this file isn't imported .

Has anyone had any luck getting this to compile for an iOS 7 project? I tried the suggested approach (copying all .swift files to your project), but I'm getting lots of compiler errors from what look to be missing UIKit imports:

ios-charts/Charts/Classes/Data/ScatterChartData.swift:19:43: Use of undeclared type 'CGFloat'; did you mean to use 'CGFloat'?
ios-charts/Charts/Classes/Data/ScatterChartData.swift:21:19: Use of unresolved identifier 'CGFloat'
ios-charts/Charts/Classes/Data/BarChartData.swift:18:31: Use of unresolved identifier 'CGFloat'
ios-charts/Charts/Classes/Data/BarChartData.swift:21:28: Use of undeclared type 'CGFloat'; did you mean to use 'CGFloat'?

Any idea what's going wrong? I'm using Xcode 6.3.1.

Everytime I try to archive in Ad Hoc mode, it gives me this error. I added this as an embedded framework. I tried to mirror the ChartDemo settings as much as possible. Does anyone else get this and if so, how did you resolve this.

Thx in advance.

i am using ur frame work for developing but i can't identify how to start ? i am new to iOS and swift please help me is there any sample in swift for your charts