System

API Reference: Device.System

System is used to retrieve operating system-specific information of the device.

TypeScript code blocks include examples of how to implement, override and components within the theme. You can create page with the UI Editor to make your page compatible with theming and then you can implement themable components programmatically. Once the page is created with the UI Editor, it generates a class under scripts/generated/pages. You can then extend that class with the following TypeScript classes.

TypeScript
JavaScript
TypeScript
import PageSampleDesign from 'generated/pages/pageSample';
import FlexLayout = require('sf-core/ui/flexlayout');
import Application = require('sf-core/application');
import Button = require('sf-core/ui/button');
import Sound = require("sf-core/device/sound");
import System = require('sf-core/device/system');
//You should create new Page from UI-Editor and extend with it.
export default class Sample extends PageSampleDesign {
mySound: Sound;
myButton: Button;
constructor() {
super();
// Overrides super.onShow method
this.onShow = onShow.bind(this, this.onShow.bind(this));
// Overrides super.onLoad method
this.onLoad = onLoad.bind(this, this.onLoad.bind(this));
this.layout.flexDirection = FlexLayout.FlexDirection.COLUMN;
this.layout.justifyContent = FlexLayout.JustifyContent.CENTER;
this.layout.alignItems = FlexLayout.AlignItems.CENTER;
}
}
/**
* @event onShow
* This event is called when a page appears on the screen (everytime).
* @param {function} superOnShow super onShow function
* @param {Object} parameters passed from Router.go function
*/
function onShow(superOnShow: () => void) {
const { headerBar } = this;
superOnShow();
Application.statusBar.visible = false;
headerBar.visible = false;
}
/**
* @event onLoad
* This event is called once when page is created.
* @param {function} superOnLoad super onLoad function
*/
function onLoad(superOnLoad: () => void) {
superOnLoad();
console.log("Device.System.OS: " + System.OS);
console.log("Device.System.OSVersion: " + System.OSVersion);
console.log("Device.System.android.apiLevel: " + System.android.apiLevel);
console.log("Device.System.batteryLevel: " + System.batteryLevel);
console.log("Device.System.isBatteryCharged: " + System.isBatteryCharged);
console.log("Device.System.language: " + System.language);
//@ts-ignore
console.log("Device.System.android.isApplicationInstalled: " + System.android.isApplicationInstalled('io.smartface.SmartfaceApp'));
//@ts-ignore
console.log("Device.System.vibrate(): " + System.vibrate());
console.log("Device.System.android.menuKeyAvaliable: " + System.android.menuKeyAvaliable);
console.log("Device.System.fingerPrintAvailable: " + System.fingerPrintAvailable);
}
JavaScript
const Page = require("sf-core/ui/page");
const extend = require("js-base/core/extend");
const System = require('sf-core/device/system');
var Page1 = extend(Page)(
function(_super) {
_super(this, {
onShow: function(params) {
Application.statusBar.visible = false;
this.headerBar.visible = false;
}
});
console.log("Device.System.OS: " + System.OS);
console.log("Device.System.OSVersion: " + System.OSVersion);
console.log("Device.System.android.apiLevel: " + System.android.apiLevel);
console.log("Device.System.batteryLevel: " + System.batteryLevel);
console.log("Device.System.isBatteryCharged: " + System.isBatteryCharged);
console.log("Device.System.language: " + System.language);
console.log("Device.System.android.isApplicationInstalled: " + System.android.isApplicationInstalled('io.smartface.SmartfaceApp'));
console.log("Device.System.vibrate(): " + System.vibrate());
console.log("Device.System.android.menuKeyAvaliable: " + System.android.menuKeyAvaliable);
console.log("Device.System.fingerPrintAvailable: " + System.fingerPrintAvailable);
}
);
module.exports = Page1;