Showing data in chart maker from tinydb app inventor

[fathul_muiin]

hi there,

I'm want to make a project using ChartMaker in here

I want to use chart maker, data input from another screen. When I try using variable and just for 1 data, my project going well.
Screen1

ResultScreen

But, when I try use tinyDB, I've got an error.

My Question: How to showing data in chartMaker and data from tinydb in another screen?

[Richael_Mehla]

Keep the first two blocks underneath 'when Button1 click' and add the 'TinyDB value to store' block and make the value a text string with 'hasil' in it. Then, change the value to store to 'get global hasil' and change the last block to not have the 'start Value' and only open another screen. On the ResultScreen, initialize global hasil to 'TinyDB get value' block and make the value, 'hasil'. Next, change the ifValueNotThere to '0'. Drag the block to where the 'get start value' block is and delete the 'get start value' block. Hope this helps!

[TIMAI2]

Use different screens wisely

• Before starting to create another screen, first you should think about is it really necessary? 
• See also Building apps with many screens and SteveJG's post about advantages/disadvantages, because in only one screen you also can use vertical arrangements to simulate different screens, just set the arrangements to visible = true/false as needed... 
• See also Martyn_HK's example about how to use Tabs in App Inventor and another example from Cyd. and my Tabbed Screens Demo

If you decided to use different screens, then you should switch them correctly, else you will run out of memory after a while...      
The recommended method of switching screens in App Inventor

(Thanks Taifun)

 

Also see demo: multiscreen.aia