Being a Java developer, i am super excited to use codenameone for an app that I am planning to write from scratch. But would like to know if codenameone supports activity detection which uses CMMotionActivity in case of ios or Google Play Services ActivityRecognition API in case of android ?
Particularly, my app would like to receive events when the user is stationary, walking, running, cycling, driving/automotive etc. Also, if i can fine tune the battery usage settings in case of location services subscription as provided by Google play services location apis, that would be great.
I hope i wont get disappointed. I was planning to learn codenameone and use it in my app only if these above features are available
I'm afraid they aren't available out of the box. However, Codename One is very flexible and you can use native interfaces to expose these features by invoking native code.
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I'm working on an AngularJS mobile web app and am getting ready to deploy to Firebase Hosting. Does anyone know how to ensure that only devices can install the web app and prevent desktop browsers from viewing? I'm trying to protect the client's intellectual property as well as my own by making a reasonable attempt to disallow the source code from being read. Thank you!!
It's not possible to prevent the reverse engineering of any web application.
Developing a mobile application using native code may make you feel more secure about the intellectual property, however once a would be attacker gets the software on to their own hardware they will have the opportunity to defeat your software.
I wound up using ng-device-detector to determine whether the user was using a mobile device or not, and delivering a different template page depending. This library contains an isMobile() function that works great.
I'm in the process of making an app for my assessment at uni using cordova/phonegap and was just wondering if its possible for me to use data from a my unis ecom website for my app without having any back-end access to it, so like images/prices/descriptions...synced to my app?
yes it is certainly possible, because Cordova means working via Javascript and a HTML5 Rendering Engine. It is with some reservations entirely possible to load data from an webserver and use it in an App.
The only thing is to ask, whether it is also a smart-choice. If you want your app not to break when the data from the website gets changed (see https://en.wikipedia.org/wiki/Link_rot )
Also the server can somewhat prevent access of data from contextes outside of the webpage, especially if TSL/HTTPS connection is offered and content is only available after authentication.
Yet anyway its the magic of Javascript to be very good in doing things with web/online resources and displaying HTML5. Cordova and PHonegap is hence imo much better than the very challenging JAVA-Dalvik and IOs native programming that one would have to use else
Likely not,
Google and Apple frowns on using apps as wrappers for websites.
Quote Google Developer Program Policies - Spam and Placement in the Store
Do not post an app where the primary functionality is to:
Drive affiliate traffic to a website or
Provide a webview of a website not owned or administered by you (unless you have permission from the website owner/administrator to do so)
And
Quote Apple iTunes Guidelines - 2.12
Apps that are not very useful, unique, are simply web sites bundled as Apps, or do not provide any lasting entertainment value may be rejected
I want to develop mobile chat backend for android and ios clients. I have experience in playframework 2 with java. Do I need to learn and use netty framework for chat backend? Playframework is also a nio framework running on netty. I can not decide which one to choose? Will be playframework enough for high traffic mobile chat backend?
The Play framework should be enough. No need to touch the bare metal (Netty) unless your doing something very complicated (special protocols, etc.). For your use case, you probably just need to familiarize yourself with the WebSocket Protocol and specifically how to set them up in play.
Your next step would be to setup the clients for android and ios. For android you could take a look at Java-Websockets and while im not familiar with iOS, a google search returned this which might be somewhere to start.
All that being said if you'd like to avoid the extra fluff that play provides (sessions, cookies, templates, routing, asset managment, Akka, etc.) and you dont think you will ever need them, then definitely go with Netty if time to learn is a non-issue. Note that with Netty the client libraries above would still apply if you use the same Websocket protocol.
I want to write GAE based application that synchronizes information between computers/phones. Right now I am only querying periodically, which causes delays or requires user to click a button to refresh manually.
With GAE channels, it should be possible to do it this way that a device can be notified when it should refresh. However, since I want it to be a desktop app (not web app), I am wondering if I can write my own client to channel API? Or grab whatever's out there.
Is the protocol documented or are there clients available for anything other than JS?
The only official interface is the Javascript client library. Although you could reverse-engineer how it works, since it's not a documented part of the interface, it could change at any time without notice.
If you're interfacing with Android phones or iPhones, each of them has a 'push' messaging API that you could use (Cloud to Device Messaging for Android, and Push Messaging for iPhone).
There is now a Java implementation for the Channels API. It was just released days ago and is available via git at https://github.com/gvsumasl/jacc. I've also taken the liberty of forking it and providing a mavenized version at https://github.com/hatboyzero/jacc.
I want to implement "mobile website provider" tool. Basically, It intake desktop website url and generate a mobile version of website without edit/add additional content to the desktop website. I am planning to design a product like (what mofuse.com does. This website create mobile websites). This tool should be hassle free to client(who are not tech savvy.)
1.Q) I want to know kind of functionality involved in this process.
2.Q) In Java Technology, I need the tool set and functionality of this actitity.
As I am new to this mobile application environment. Any information(web links) regarding this will be appreciated.
Update:
its not like skweezer.com.
I had a website and I want to "mobile"ize it. 1) What kind of java tool set I have to use to create mobile web site? 2) How to test in multiple mobile devices 3) How the domain name will be created for mobile websites.
Check out our Wapple Architect tech (http://wapple.net) - we allow you to use the same content from web to mobile, but if it's mobile, instead of outputting the html, use a web service to turn it into the right content for that particular handset.
Mobilizes the same domain, no need for m.yourdomain.com or anything like that.
Check http://wapple.net on a mobile for example!
there are certain plugins which mobilise your website .
they check user agent and if user agent is of mobile browser they load another css of mobile and if you want to redirect some another redirect it ther.
you dont have to buy separate domain make sub domain or cname like
m.yourdomain.ccom
wap.yaourdomain.com
try some javacripts code which detect browser type and redirect accordingly.
The best place to learn about mobile toolkits are
WURFL - The open source community built around profiling devices and managing their capabilities (http://wurfl.sourceforge.net/)
Mobile Elements - A tool to help you build mobile sites using a proxy type approach (http://www.mobilelements.com)
Device Atlas - A device profiling tool (http://www.deviceatlas.com)