Line chart: Circle for first value is missing

[c-goettert]

I recognized that on LineCharts, the first value never has a circle on top of it. This is happening per default, also in the examples. See the following screenshot for reference:

I played around with some settings (zooming, scrolling, styling, etc.) but couldn't find any working setup where the first value would also display a circle. In my scenario the first circle is necessary because some datasets might only contain one single value (which won't be visible otherwise).

This issue seems to be related to the wrapper-project, because in the Example-App of MPAndroidChart it's possible to see one single value in Line-Charts and you see a Circle on top of the first value as well:

Does anyone know why this happens or has a suggestion to fix this for my case?

---

Update: On Android the circles draw just fine, this seems to be only an issue with iOS.

[c-goettert]

Update: This seems to be an issue of Charts library for iOS (see related issue). Hope that this will be fixed in the next release. Closing this issue now.

[c-goettert]

Update #2: For anyone suffering from the same problem: It's possible to fix this with a quick hack until this is merged. Presuming you have installed the library manually, you can apply the fix in the Native XCode-Project of the Charts library. You need to adjust the file BarLineScatterCandleBubbleRenderer.swift:

         public mutating func next() -> Int? {
-            guard value < bounds.max else { return  nil }
-            value += 1
+            guard value <= bounds.max else { return  nil }
+            defer { value += 1 }
             return value
         }

This fixed it for me.

[mogluszka]

Thank you so much @c-goettert, your solution saved me a lot of time. :)