Starting App Inventor: basic questions (from other languajes)
caj...@gmail.com
I have huge experience programming in Mainframes, C, Rexx,...for years and now I have to quickly make an app for mobile (and learning it :-) ). After evaluating options I finally decided to use A2I and I'm comfortable with it, but as I'm novice here I miss some basic features -below- for which I would appreciate very much your help, please.
Thank you in advance.
1. What is the maximum size of file I can read with a File1.gottext procedure?
2. I read a file with thousands of small text records ending in \n (ASCII 13 + 10); they ARE NOT CSV.
How can I read them to process each line, one by one, without using list based on CSV? (my records have comma ",").
On other words, I would like to read each line one at time, but not locating the full text in memory when I open the file.
3. Does exist a "return" command to exit from a procedure or routine?.
I guess not, but IMHO such command is absolutely necessary for programming, in example, when you have a routine with multiple possible points of exit along its code.
4. Does exist something like "iterate" to go back to beginning of a loop?
If not, when I process something then I have to continue going through the full loop having a lot of care to not execute below instructions.
5. Along the time I have got plenty of blocks in my code.
Does exist some tool, hint... to visually re-sort or re-arrange the main event blocks (and their content) in my screen (PC or A2I Web screen) so it is more handy and tidy to see?
BTW, Can I select a set of blocks to move all them?. I have tried to move a few ones but A2I only allows to select which are joined horizontally.
6. I read (in a web dtd 2016) that A2I will make apps also Apple iPhone compatible. is it true?
If yes, How can I explore such possibility?