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[ ] 2.x
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I have a bug for "ion-datetime" which show at this picture.I do not resove this time.

Hello! Thank you for opening an issue with us! Would you be able to provide a sample application via GitHub that demonstrates the issue you are having? Thanks for using Ionic!
@kensodemann I have wrote a project which url is 'https://github.com/StormKid/ionic---test---dateTime'. Then run serve and when you show timePick please fast move pickview also do not move smooth. You might look the bug at first time . Please try more time.
This is my ionic info:

I tried your sample in the browser and it always works fine, no matter what I do. Every time I had 'Done' the date is updated accordingly.
Also tried on an older Android device.
Maybe I just do not fully understand what you are reporting here. In your picture, it looks like the errant behavior is that the button is not being updated with the chosen date, but perhaps you are attempting to show something else.
Please expand your explanation of what you are reporting.
I see that sometimes the "min" and "max" limiting it not occurring appropriately. Is that what you are trying to show with your graphic? It is very hard to tell without any context.
@kensodemann Look at this picture:

OK, so it looks like what you are trying to report is that sometimes the "min" or "max" are not auto-selected when the date is below the "min" or above the "max" which would allow for an invalid date. Is that correct? (just wanting to make sure, because pictures without words can be hard to interpret).
@kensodemann ok , It's correct! I also want to ask about extra words is that ionic4 would use vue.js to product project?
@StormKid - short answer: yes, with v4 of Ionic you will be able to use Vue.js. Maybe not right away, but the plan is that it will at some point in the near future be something you can do.
Longer answer: http://blog.ionic.io/ionic-2017-18-roadmap/
@kensodemann Thanks for you answer. I just like angular and typescript to product my project. I hope Ionic Team will make ionic-angular better than better.
Sorry , I reply too late. This proplem has been resolved in ionic v3.19.1. Thanks a lot . I hope that ionic v4.0 publish as soon as possible.
Hello, when will ionic 4 beta release?
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Most helpful comment
@StormKid - short answer: yes, with v4 of Ionic you will be able to use Vue.js. Maybe not right away, but the plan is that it will at some point in the near future be something you can do.
Longer answer: http://blog.ionic.io/ionic-2017-18-roadmap/