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title: volumeupbutton
---
# volumeupbutton
当使用者按下了按钮卷时，将触发该事件。
document.addEventListener("volumeupbutton", yourCallbackFunction, false);
## 详细资讯
如果您需要重写预设卷起来的行为你可以注册为事件拦截器 `volumeupbutton` 事件。
应用程式通常应使用 `document.addEventListener` 将一个事件拦截器附加一次 `[deviceready](events.deviceready.html)` 事件火灾。
## 支援的平台
* 黑莓 10
* 安卓系统
## 快速的示例
document.addEventListener("volumeupbutton", onVolumeUpKeyDown, false);
function onVolumeUpKeyDown() {
// Handle the volume up button
}
## 完整的示例
Volume Up Button Example