Download here: App Inventor Basic Text Files Cheat Sheet (PDF) High res, suitable for printing. Feel free to share with others. App Inventor sample source code: TextFile.aia Be sure to follow the links for more information about text files and where they are stored on your device and how to transfer files to your computer. Here is … Continue reading Free-Download App Inventor Text Files Cheat Sheet
This post is a major update to a previous post on reading and writing text files using App Inventor. This revision includes information on how to locate the text files you create in your App Inventor apps, plus how to transfer those files from your smart phone or tablet to your computer. An earlier blog … Continue reading Updated: Writing and Reading Text Files Using App Inventor
I previously posted a short tutorial on writing to and reading from text files stored on an Android device, using an App Inventor app. Unfortunately, as some comments noted, the file being created seems to disappear – the data is written and can be read back – but the file is no where to be … Continue reading Update: Reading and writing text files with App Inventor
Update: When the program is run in AI2 Companion, it behaves differently than when run as a standalone “build” .apk app. CLICK HERE FOR A MAJOR UPDATE TO THIS TUTORIAL ON TEXT FILES! Also, lots more information on files, CSV files, TinyDB, TinyWebDB and Fusion Tables in Volume 3 – App Inventor 2 Databases and … Continue reading Writing to and reading from text files in App Inventor programs
Readers post questions on the FB page or the blog. Sometimes I can answer them but sometimes I cannot answer them right away. For those that I cannot answer, I add the question to a list of future tutorial ideas. If someone is not sure how to solve a problem, chances are that there are others … Continue reading Aligning the text that appears in ListPicker
Volume 3 – focusing on TinyDB, TinyWebDB, Fusion Tables and text files – is now Available. ————————————————————————- App Inventor 2: Databases and Files is a step-by-step guide to writing apps that use TinyDB, TinyWebDB, Fusion Tables and data files for information storage and retrieval. Includes detailed explanations, examples, and a link to download sample code. This … Continue reading App Inventor 2: Databases and Files – available shortly
As you may know, you can save your App Inventor project to your local computer using the Projects | Export selected project (.aia) to my computer menu option: Use this feature to save a backup copy on your local computer or to share your code with others (email or transfer the file using DropBox – … Continue reading What is inside a .aia project file?
(This post was completely rewritten and updated on October 30, 2015) What is TinyDB? TinyDB is a simple “database” that stores data on your phone or tablet. Unlike program variables that go away when your app is finished running or your phone is re-set, values stored in TinyDB remain on your phone for use the … Continue reading Using TinyDB in App Inventor