Learn App Inventor: Making a List and list of lists

Let's talk about making lists and list of lists in #appInventor
Basic tips about making lists in app inventor
lEARN HOW TO USE FOR EACH BLOCKS: goo.gl/fS5aGt
MIT App Inventor is an innovative beginner's introduction to programming and app creation that transforms the complex language of text-based coding into visual, drag-and-drop building blocks. The simple graphical interface grants even an inexperienced novice the ability to create a basic, fully functional app within an hour or less.
MIT App Inventor has grabbed the attention of:
Formal and informal educators who have used MIT App Inventor to introduce programming to their Computer Science students, science club members, after-school programs’ attendees, and summer campers. Many educators have also started to use MIT App Inventor to develop apps in support of their own instructional objectives.
Government and civic employees and volunteers who have harnessed the power of MIT App Inventor to develop custom, often hyper-local apps in response to natural disasters and community-based needs.
Designers and product managers who have seen the potential that MIT App Inventor has to support the iterative design process via rapid prototyping, testing and iteration.
Researchers who use MIT App Inventor to create custom apps that can process their data collection and analysis requirements in a wide variety of fields from medical to social.
Hobbyists and Entrepreneurswho want to quickly turn an idea into an app without the cost or learning curve of more traditional app creation processes.
The MIT App Inventor team has five primary objectives:
Building capacity - App Inventor diligently strives to expand the compass of formal and informal mobile computing education for adults and youth around the world. We are actively engaged in developing and disseminating resources and training materials to support educators in creating new apps through our program.
Promoting computer science education - Through our blocks-based programming language, we are committed to promoting an alternative on-ramp to computational thinking education. From a policy perspective, we actively engaged in local and national conversations about standards. From an awareness perspective, we are eager to participate in and support large-scale campaigns reaching new audiences.
Sustaining and enhancing the tool - We have made a long-term commitment to sustaining and enhancing MIT App Inventor as a cutting-edge free service to users. To this end, we are continuously improving the tool, debugging and enhancing its performance, and adding new features.
Building enterprise enhancements - We work with public agencies and private corporations to support unique applications by developing custom features of MIT App Inventor in response to partner needs.
Conducting and supporting community research - MIT undergraduates, graduate students and collaborating institutions are actively engaged in conducting and publishing research while developing, testing and evaluating the use of MIT App Inventor around the world.
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[@cp3031]

Great explanation on list of lists.

[@jacksonlouie6027]

You prolly dont care but if you're stoned like me atm you can stream pretty much all the new series on Instaflixxer. Have been watching with my gf for the last days :)

[@bobronson5049]

@Jackson Louie definitely, been using Instaflixxer for since december myself :D

[@rr6401]

How do i make a numbered list?

[@massimilianocomunale2789]

Hi and congratulations for the video, I wanted to ask you a question, if I would like to search for a given in this list is to get its index?

[@shashiranjanhere]

How do you extract range of indexes from a list to create a new list eg. first 5 element of a list?

[@azaotl]

maybe using a for loop .

[@shashiranjanhere]

@@azaotl Ok.. I thought there would be some way of filtering it directly, as we do in python or R.

[@sanatanchakravarty3941]

HI. How to make a list of lists from a csv. If the each record in the csv is a list of three comma seperated items. lit "edison, bell, naismith","mendez,lee,cruise","spencer,john,perez". How to make a similar Teams list once we import the csv in app inventor. Much apprecitated in advance.

[@senaprasena168]

thanks this helps me one liked and one subbed

[@azaotl]

You are welcome!!!

[@themab3955]

Hi, is it possible to randomize the questions but also ensure the options are corresponding to the question?

[@drummonkeystuffuk1875]

Hi ive got some code where if i drag a sprite over another prite it check if the sprite collided with matches a picture in the image box....now when ever i tell it to do it..it comes back as false.

[@eddychong6300]

About the list of lists, can we use the text label to replace the items which is list of the lists? I managed to collect data from firebase but need to constantly update the lists of the list of graph

[@mingtsui8883]

how to make a mit app inventor schedule book includes datepicker and send the details to Google sheet

[@tanzihua2177]

Great help

[@carlaceres]

Thank you very much, Eduardo! You've helped me a lot!

[@azaotl]

Awesome!!!! Thanks for watching this :D

[@jameslam5034]

That's the right time, my class is teaching ai2 now, thx a lot

[@0o_mar]

thank's you dude

[@zeynepozeker7477]

Hi Eduardo, your videos are a great help for beginners like me. I'm working on a multiple choice quiz where 10 questions (out of 20) are randomly chosen from the questions list and the multiple choice answers are assigned randomly from the answers list using list in list. Unfortunately, I get error message constantly when I hit the answer buttons. Does list in list method not work for assigning values to answer buttons? I couldn't even start the removal process to eliminate duplication. Any help will be appreciated. Thx

[@zeynepozeker7477]

I've already checked it and unfortunately it doesn't answer my problem. Do you offer freelance guidance or personal support?

[@GilNunes1]

Did you solve your problem? I have a similar problem ...

[@HollyDorsoQueenOfFreebies]

Hey Edwardo, Is is possible to have a checkable list with AI2? Ex I want to have a list but use the check boxes in my list. Thank you for this tutorial. It cleared a lot up for me.

[@HollyDorsoQueenOfFreebies]

I tried looking for the app Basta! but there are a few with that exact name. I was thinking of doing a grocery type list where I could check the things off as the items are picked up. Then add and remove items from the list. New at this so I'm still figuring things out. Your videos are very helpful. I'm also following on facebook.

[@HollyDorsoQueenOfFreebies]

You would? That would be awesome! Thank you! I'll make sure to check out Basta! as well!

[@HollyDorsoQueenOfFreebies]

Wow that was fast. There's no rush. I'm still learning and tinkering around, only have so much time with three little kiddos. Wasn't sure if I could do it here or if I should have went the Android Studio route. Thank you again!!