https://git.merproject.org/mer-core/nemo-keepalive/tree/master
有时候我们需要在某些页面让屏幕一直亮着，不要熄屏，这时候就需要它了
- 添加依赖
在spec或yaml中添加libkeepalive - 在qml中使用
/* ------------------------------------------------------------------------- *
* Copyright (C) 2014 Jolla Ltd.
* Contact: Martin Jones <martin.jones@jollamobile.com>
* License: BSD
* ------------------------------------------------------------------------- */
import QtQuick 2.0
import Sailfish.Silica 1.0
import Nemo.KeepAlive 1.1
ApplicationWindow {
property var startTime
property var currentTime
initialPage: Component {
Page {
KeepAlive {
id: keepAlive
}
Timer {
id: timer
property int count
interval: 1000
repeat: true
onTriggered: {
++count
currentTime = new Date()
}
}
Column {
width: parent.width
spacing: Theme.paddingLarge
anchors.centerIn: parent
TextSwitch {
text: "Keep Alive"
anchors.horizontalCenter: parent.horizontalCenter
onCheckedChanged: {
startTime = new Date()
currentTime = new Date()
timer.count = 0
timer.restart()
keepAlive.enabled = checked
}
}
Label {
anchors.horizontalCenter: parent.horizontalCenter
text: "Duration: " + Math.round((currentTime.getTime() - startTime.getTime())/1000)
}
Label {
anchors.horizontalCenter: parent.horizontalCenter
text: "Timer triggered: " + timer.count
}
}
Component.onCompleted: {
startTime = new Date()
currentTime = new Date()
timer.start()
}
}
}
}
