Pro Android Python with SL4A
Brought to you by AQnowledge , precision products for scientists. CiteULike is a free online bibliography manager. Register and you can start organising your references online.
Some citation styles add the source URL, which you may not want. Likes beta This copy of the article hasn't been liked by anyone yet. Find this article at Save current location: There are no reviews of this article. Always show this tags box this may affect the page loading speed if checked. They're meant to be used as regular Python programs. You'll normally just want to write a bit of code, save it, then run it, and keep iterating. Having to keep building the app is just tedious. With the Scripting Layer, you can start hacking away like you would on any other system, just editing and executing files.
This series focuses on Python, and Python is the most popular and well supported language on SL4A, but the other languages have features which can be really useful.
Why Android's SL4A is Different
It's nice to have an environment with these kinds of features available. SL4A is really easy to install. The application is distributed as an APK, the standard format for Android apps, so it can be installed in the same way. However, before installing apps from 'unknown sources', you need to allow that on your device. If you haven't already, open your device's main Settings menu, open the Security menu, then "allow installation of non-Market apps" by checking the Unknown Sources option.
Now you're ready to install the Scripting Layer. If you go to the SL4A project's home page , you can download a copy of the Scripting Layer APK to your device by just scanning the barcode on that page and confirming the download when prompted. If you don't have a barcode scanner on your device, there's always a bunch of gratis scanners available from any app store. Once you've downloaded the APK, you should be able to install it from directly within your device's notifications panel, where the download will appear. You device may differ slightly, but it will be obvious how you install the APK, as long as you've enabled installation from unknown sources.
Once you've installed the Scripting Layer, you'll be able to open it, create and edit little shell scripts with the built-in editor and run them.
Ferrill, Paul
It very easy to get started. This is where you'll normally put your own scripts for easy access. You can create directories in here to help keep things sane if you want to build more complex applications, or just to organise simple scripts if you have a lot of them. SL4A only includes the shell as standard, but installing other interpreters is easy to do from within the app.
If you press View, you'll see a menu with three options, Interpreters, Triggers and Logcat. Selecting Interpreters will move your view from the scripts directory to the interpreters list. Hitting the device's main menu button in this view will open a new menu with an option to add interpreters.
Android Debug Bridge 3. Files and Applications 3. Developing with Eclipse 4. Installing Eclipse on a Development Machine 4. Android Development Toolkit 4.
Using Multiple File Types in Eclipse 4. Exploring the Android API 5. Exploring the Android APIs 5. Background Scripting with Python 6. Elapsed Time-based Triggers 6.
Pro Android Python with SL4A - Paul Ferrill - Google Книги
Syncing Photos with Flickr 6. Syncing with Google Docs 6. A Startup Launcher 6. Python Scripting Utilities 7. Tweet My Location 7.
Stay ahead with the world's most comprehensive technology and business learning platform.
Track My Travel 7. Killing a Running App 7.
URL File Retriever 7. Python FTP Server 7.
Book Title Search 8.