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我们可以通过UserMetric的API发布消息到我们手机的欢迎页面（手机的锁屏界面）。在锁屏界面中，我们可以双击中间的圆圈，来循环播放我们手机发布的消息。如下图所示，
我们发布了“Useermetric messages received: 4”个消息。
我们需要使用的模块是:
import UserMetrics 0.1
liuxg@liuxg:~$ qmlplugindump import UserMetrics 0.1
QQmlComponent: Component is not ready
liuxg@liuxg:~$ qmlplugindump UserMetrics 0.1
import QtQuick.tooling 1.1
// This file describes the plugin-supplied types contained in the library.
// It is used for QML tooling purposes only.
//
// This file was auto-generated by:
// 'qmlplugindump UserMetrics 0.1'
Module {
Component {
name: "Metric"
prototype: "QObject"
exports: ["Metric 0.1"]
exportMetaObjectRevisions: [0]
Property { name: "name"; type: "string" }
Property { name: "format"; type: "string" }
Property { name: "emptyFormat"; type: "string" }
Property { name: "domain"; type: "string" }
Property { name: "minimum"; type: "double" }
Property { name: "maximum"; type: "double" }
Method {
name: "increment"
Parameter { name: "amount"; type: "double" }
}
Method { name: "increment" }
Method {
name: "update"
Parameter { name: "value"; type: "double" }
}
}
}
我们的应用非常简单：
import QtQuick 2.0
import Ubuntu.Components 1.1
import UserMetrics 0.1
/*!
\brief MainView with a Label and Button elements.
*/
MainView {
// objectName for functional testing purposes (autopilot-qt5)
objectName: "mainView"
// Note! applicationName needs to match the "name" field of the click manifest
applicationName: "usermetrics.liu-xiao-guo"
/*
This property enables the application to change orientation
when the device is rotated. The default is false.
*/
//automaticOrientation: true
// Removes the old toolbar and enables new features of the new header.
useDeprecatedToolbar: false
width: units.gu(60)
height: units.gu(85)
Page {
title: i18n.tr("usermetrics")
Metric {
id: incomingMessagesMetric
name: "usermetric"
format: i18n.tr("Usermetric messages received today: %1")
emptyFormat: i18n.tr("No Usermetric messages received today.")
domain: applicationName
}
Column {
anchors.centerIn: parent
spacing: units.gu(2)
Button {
text: i18n.tr("Increase")
onClicked: {
console.log("Going to increase the metric!");
incomingMessagesMetric.increment()
}
}
Button {
text: i18n.tr("Decrease")
onClicked: {
console.log("Going to increase the metric bye 2!");
incomingMessagesMetric.increment(-2)
}
}
Button {
text: i18n.tr("Decrease")
onClicked: {
console.log("Going to update to 3 to the metric!");
incomingMessagesMetric.update(3)
}
}
}
}
}
{
"policy_groups": [
"networking",
"webview",
"usermetrics"
],
"policy_version": 1.3
}<img src="http://img.blog.csdn.net/20150828164655239?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" width="200" height="300" alt="" />
每当我们点击increase按钮后，我们的欢迎界面数据将增加一个：
整个应用的源码在：git clone https://gitcafe.com/ubuntu/usermetrics.git
版权声明：本文为博主原创文章，未经博主允许不得转载。
如何使用UserMetric发布消息到Welcome Screen
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原文地址：http://blog.csdn.net/ubuntutouch/article/details/48054463
