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rudy Serroyen
Nov 12, 2015, 8:56:41 AM11/12/15
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Hy
I made diagram It does not work
The data are here
{"channel":{"id":64246,"name":"Arduino Based Vent Damper Controlled","description":"Pour le feux à pelet","field1":"S_D_B-Tem","field2":"S_D_B-Clapet","field3":"Room_1-Tem","field4":"Room_1-Clapet","field5":"Room_G-Tem","field6":"Room_G-Clapet","field7":"Room_S-Tem","field8":"Room_S-Clapet","created_at":"2015-11-05T17:23:27Z","updated_at":"2015-11-11T21:15:16Z","last_entry_id":2},"feeds":[{"created_at":"2015-11-11T21:15:16Z","entry_id":2,"field1":"20","field2":"90","field3":"19","field4":"90","field5":"18","field6":"0","field7":"18.5","field8":"0"}]}Select list item: Attempt to get item number 5 of a list of length 1: (((created_at 2015-11-11T21:15:16Z) (entry_id 2) (field1 20) (field2 90) (field3 19) (field4 90) (field5 18) (field6 0) (field7 18.5) (field8 0)))
What is wrong.
Thank you
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Taifun
Nov 12, 2015, 12:04:00 PM11/12/15
to MIT App Inventor Forum
each bracket pair represents a list
therefore first you have to select the first item from the main list and then item 5 from the sublist to get field3 19
it helps to use Do it to debug your blocks, see also tip 4 here
App Inventorbut probably you are only interested in the value 19?
in this case use the loopup in pairs block
Taifun
Abraham Getzler
Oct 19, 2016, 12:18:24 PM10/19/16
to MIT App Inventor Forum
Also see this sample Web Page Shredder app in the Gallery:
ABG
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