Data transmission between 2 screens

[Still_Learning]

How do I use TinyDB?

Hello, Here are some tutorials working with TinyDB. You can find information about how to use TinyDB. http://www.appinventor.org/Databases2 Also, remember to read the documentation! http://ai2.appinventor.mit.edu/reference/components/storage.html#TinyDB

Send data to a different screen

Add a TinyDB component in Screen1 and Screen3. In Screen3, before going to Screen2, do this: [image] Then, in Screen1, the data will be like this: [image] Note: You must store a value before getting the value, else the system will return the socket 'valueIfTagNotThere'.

Global single value variable

A TinyDB example showing one way to ' transfer' a variable to multiple screens: [TinyDBScreens] Drop a TinyDB control on each of the Screens the variable is needed. There are various other way the TinyDB could be used. What a developer should use depends on his/her app. Perhaps Asama will post the example he made using the start value block and someone will post an example of using virtual screens to help others learn?

Search is always a better option and will increase your learning, coding skill rather than readymade blocks