A slider button adjusts focus.

一个滑动的按钮可以调焦。

youdao

youdao

This element is similar to a slider, yet it doesn't use a button to slide through pages - the sliding takes place automatically.

这个元素跟滑动器类似，但是并不是用一个按钮去滑过这些页面，这个滑动自动的发生。

youdao

Thanks to the depth slider button, you can easily hold the device anywhere from a few inches from your eyes all the way to full arms-length, and still get the 3D effect.

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The Awesomize button works as a slider, so I could adjust exactly how much editing I wanted applied to a photo.

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Situated above the main native notification panel, the extra panel has a screen brightness slider sandwiched between the outdoor mode button and automatic brightness button.

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