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ui.Slider.onSlide
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
注册一个在滑块状态发生变化时触发的回调。在用户拖动滑块期间，系统会反复调用该回调。
返回一个 ID，该 ID 可传递给 unlisten() 以取消注册回调。
| 用法 | 返回 |
|---|
Slider.onSlide(callback) | 字符串 |
| 参数 | 类型 | 详细信息 |
|---|
此：ui.slider | ui.Slider | ui.Slider 实例。 |
callback | 函数 | 当滑块状态发生变化时要触发的回调。系统会向回调传递滑块的当前值。 |
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-07-26。
[null,null,["最后更新时间 (UTC)：2025-07-26。"],[[["\u003cp\u003e\u003ccode\u003eSlider.onSlide\u003c/code\u003e registers a callback function that is triggered repeatedly as the user interacts with the slider, providing real-time updates on the slider's value.\u003c/p\u003e\n"],["\u003cp\u003eThis function returns a unique ID that can be used with \u003ccode\u003eunlisten()\u003c/code\u003e to remove the registered callback when it's no longer needed.\u003c/p\u003e\n"],["\u003cp\u003eThe callback function receives the current value of the slider as an argument, allowing you to perform actions based on the slider's state.\u003c/p\u003e\n"]]],["Registers a callback function triggered by slider state changes, particularly during user dragging. The `onSlide` method accepts a callback function as an argument, which receives the slider's current value. It returns a unique ID used to unregister the callback later with `unlisten()`. The method is used on a `ui.Slider` instance and allows repeated invocation of the callback while the slider state changes.\n"],null,["# ui.Slider.onSlide\n\n\u003cbr /\u003e\n\nRegisters a callback that's fired when the slider's state changes. The callback will be invoked repeatedly while the user is dragging the slider.\n\n\u003cbr /\u003e\n\nReturns an ID which can be passed to unlisten() to unregister the callback.\n\n| Usage | Returns |\n|----------------------------|---------|\n| Slider.onSlide`(callback)` | String |\n\n| Argument | Type | Details |\n|-------------------|-----------|----------------------------------------------------------------------------------------------------------|\n| this: `ui.slider` | ui.Slider | The ui.Slider instance. |\n| `callback` | Function | The callback to fire when the slider's state changes. The callback is passed the slider's current value. |"]]
