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ui.Slider.onChange
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
註冊在滑桿狀態變更時觸發的回呼。如果變更是因為使用者拖曳滑桿,事件會在拖曳完成後才會觸發。
傳回可傳遞至 unlisten() 的 ID,用於取消註冊回呼。
用量 | 傳回 |
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Slider.onChange(callback) | 字串 |
引數 | 類型 | 詳細資料 |
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這個:ui.slider | ui.Slider | ui.Slider 執行個體。 |
callback | 函式 | 滑桿狀態變更時要觸發的回呼。回呼會傳遞滑桿的目前值和滑桿小工具。 |
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上次更新時間:2025-07-26 (世界標準時間)。
[null,null,["上次更新時間:2025-07-26 (世界標準時間)。"],[[["\u003cp\u003eThe \u003ccode\u003eonChange\u003c/code\u003e method registers a callback function that is triggered when the slider's value changes, but only after a user completes dragging the slider.\u003c/p\u003e\n"],["\u003cp\u003eIt returns a unique ID that can be used with the \u003ccode\u003eunlisten()\u003c/code\u003e method to remove the registered callback.\u003c/p\u003e\n"],["\u003cp\u003eThe callback function receives the slider's current value and the slider widget itself as arguments when invoked.\u003c/p\u003e\n"]]],["The `Slider.onChange` method registers a callback function to be executed when a slider's state changes. This callback is triggered after a user completes dragging the slider, not during the drag. The method accepts a callback function as an argument, which receives the slider's current value and the slider widget itself. It returns a unique ID (string) that can be used to unregister the callback later using `unlisten()`.\n"],null,["# ui.Slider.onChange\n\n\u003cbr /\u003e\n\nRegisters a callback that's fired when the slider's state changes. If the change is due to the user dragging the slider, the event will not fire until the drag completes.\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.onChange`(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 and the slider widget. |"]]