Added onChangeStart and onChangeEnd to CupertinoSlider #17535
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CLAs look good, thanks! |
… and onChangeEnd documentation
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Thanks @dcaraujo0872! This looks great, but could we bother you to add a test for it too? |
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Sure thing @gspencergoog, on it. :) |
| widget.onChangeEnd(_lerp(value)); | ||
| } | ||
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| // Returns a number between min and max, proportional to value, which must |
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The indentation is off here.
| /// | ||
| /// ```dart | ||
| /// new CupertinoSlider( | ||
| /// value: _duelCommandment.toDouble(), |
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You'll need to add the magic comment incantation:
// Examples can assume:
// int _duelCommandment = 1;at the top of the file, just below the imports (see the top of material/slider.dart for an example) to prevent the dartdoc syntax checker from failing.
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Sorry, I gave you only partially correct advice: you need that incantation, but you'll have to change the name of the variable, since that name is already used in the material slider.
Maybe something like _cupertinoSliderValue. More boring, but has the advantage of being unique. :-)
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Doh! Well my own fault as well because I didn't check other source files. I saw the CI logs a few minutes ago and was wondering why it was failing. Thanks @gspencergoog :)
| double _lerp(double value) { | ||
| assert(value >= 0.0); | ||
| assert(value <= 1.0); | ||
| return value * (widget.max - widget.min) + widget.min; |
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You can just replace calls to _lerp with this (and eliminate _lerp):
lerpDouble(widget.min, widget.max, value);The 0-1 enforcement is already being done in the render object.
…no-slider-onchangestart
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I'll land this as soon as the build dashboard is green again. |
ghost
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This is a follow up on issue #17169 and the pull request #17298
This pull request adds the onChangeStart and onChangeEnd callbacks for CupertinoSlider. These are called when a user starts and ends a change respectively.