英文:
How to detect user is idle or inactivity in jetpack compose?
问题
Suppose I have an action to be executed after a certain amount of time without the user touching the screen. How can I implement a timer that executes an action when it times out, but starts over when the user triggers a switch?
英文:
Suppose I have an action to be executed after a certain amount of time without the user touching the screen. How can I implement a timer that executes an action when it times out, but starts over user trigger a switch
答案1
得分: 1
使用 LaunchedEffect：
LaunchedEffect(key = <您的开关状态>) {
delay(<指定的毫秒延迟时间>)
executeAction() // 要执行的操作
}
LaunchedEffect 在 key 更改时重新启动其 Lambda 表达式。因此，只有在 key 保持不变的情况下，此代码才会在指定的延迟时间后调用 executeAction()。如果用户切换开关，其状态会更改，LaunchedEffect 会重新启动，delay() 将再次被调用。
英文:
Use LaunchedEffect:
LaunchedEffect(key = <your switch state>) {
delay(<certain amount of time in milliseconds>)
executeAction() // action to be executed
}
LaunchedEffect restarts its lambda when key changes. So this code will call executeAction() after specified delay only if the key remains the same. If User toggles Switch, its state changes and LaunchedEffect restarts and delay() will be called again.
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