- Java On Android
- Install Java Script Downloads
- Javascript Download For Android
- Java Script Download For Android Windows 7
I am new to Android programming, and looking for some general knowledge. I am considering writing logic of my application in javascript so that the same code could be executed in a webapp and in a desktop application. Would it be possible to also have it working on Android? I know that:
- SL4A is marked as alpha-quality, and user would need to install it to make such an app work. Still it provides access to Android API. SL4A scripts also cannot go to Android Market, as far as I know.
- A simple webapp doesn't have access to most Android API.
Would it be possible to write a simple Java app that would embed an HTML widget with javascript code and provide some wrapper to access necessary API?
JavaScript is an easy-to-use programming language that can be embedded in the header of your web pages. It can enhance the dynamics and interactive features of your page by allowing you to perform calculations, check forms, write interactive games, add special effects, customize graphics selections, create security passwords and more. Note: If you're looking for a free download links of Pro Android Web Apps: Develop for Android using HTML5, CSS3 & JavaScript (Books for Professionals by Professionals) Pdf, epub, docx and torrent then this site is not for you. Ebookphp.com only do ebook promotions online and we does not distribute any free download of ebook on this site.
I am not looking for a fully portable thing--I intend to adapt UI to each environment manually. I just would like to have the internal logic common to all ports.
Java On Android
Android; Android. Follow these instructions to activate and enable JavaScript on your Android. Select Browser or Internet to open the web browser. Select More then Settings. Finally select Enable JavaScript. Just in case you do not get the JavaScript For Android undefined in play store you may still download the APK using this website and install the undefined. If at all you are planning to go with Andy emulator for PC to free download and install JavaScript For Android for Mac, you may still go through same exact process at any time.
4 Answers
If you want to use javascript and access the native api then you should try Appcelerator.com. Those people are providing this.
PhoneGap allows you to write an HTML-based app that not only works with Android, but also iPhone, Windows Phone 7, WebOS and more. The API is standardized, so you can use the same page on all the platforms.
There's support for the most common native features on most platforms. (Here's a chart of the features supported on each platform) In addition, if you find that there's a feature you cannot replicate using only their API, you can write a plugin in the native platform language (so, for Android that'd be Java), and then call that plugin from your HTML/Javascript-page.
There is Rhino, which is a Javascript engine written in Java. It works in Android, and it is used by Appcelerator's Titanium mentioned in another answer here.
User interface and Android-specific API can then be written and wrapped in Java, then called by the logic code written in Javascript and run by Rhino.
Install Java Script Downloads
Consider GWT, a Java to javaScript compiler. You can write your logic and a lot of other code in plain old Java(There are a few things(e.g. reflection) that you can't do like reflection but you wouldn't be able to do it in javaScipt either) Applications like Google inbox are using GWT to reuse a lot of their code in javaScript. They don't just reuse logic either. You can reuse dependency injection, your architecture, AJAX calls and more. Also, GWT is faster than javaScript in both the browser and the JVM. The biggest problem you might have with GWT is that it's more complicated javaScript. Regular Java is already more complicated. Making it work on both the JVM and browser can only make things more complicated. Also, GWT was designed from the ground up for extremely complciated web apps.