ios - Charts with swift -

I'm new to iOS development and want to create an app with some charts. I decided to start developing rapidly because as Java developer seemed to be easier for me to learn, but in the meantime I feel that using Objective-C would be a better option, because AFAIK has a chart library that matches my criteria

Line and bar charts

Ability to draw charts with date and time axis

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Free or The price & lt; General chart libraries such as JBCHRTVVV, CorePlot and IOSplots do not meet my criteria, so I am thinking that either to use the JavaScript Chart library. Switching to a webview or purpose-c

Is it good to use the JavaScript Chart API in the webview? If so, can it cause problems with different screen sizes and different devices with orientation? What are the common problems with this approach?

EDIT: Core-plot release -2.0 works well with SWIFT

As stated in the written comments on the link, you can use the core plot swift as long as you use the code from the release-2.0 branch. Are there. Changes in that branch are to solve problems with NSDecimal which are 1.x versions of the core plot.