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並前往https://stackguides.com/questions/2895122/iphoneprogramming-uislider-to-position-at-clicked-location

iPhone:Programming UISlider to position at clicked location

It seems like just subclassing UISlider and returning always true to the beginTracking produce the desired effect. iOS 10 and Swift 3 class CustomSlider: ...

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查詢 「Begintracking」的人也找了：

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