# Db1 add listener in new ui

**URL:** <https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940>\
**Category:** Questions about Thunkable X\
**Tags:** firebase, beginner, help\
**Created:** [June 15, 2021, 9:31am UTC](https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940 "2021-06-15T09:31:33Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![hemantadithiyaks](https://avatars.discourse-cdn.com/v4/letter/h/aeb1de/32.png) [@hemantadithiyaks](https://community.thunkable.com/u/hemantadithiyaks)\
**Post date:** [June 15, 2021, 9:31am UTC](https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940/1 "2021-06-15T09:31:33Z")

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im making a new chat app but have problem with the new cloud varible. can you plz tell the new blocks similarity with the old ui

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**Author:** ![hemantadithiyaks](https://avatars.discourse-cdn.com/v4/letter/h/aeb1de/32.png) [@hemantadithiyaks](https://community.thunkable.com/u/hemantadithiyaks)\
**Post date:** [June 15, 2021, 9:36am UTC](https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940/2 "2021-06-15T09:36:46Z")

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this block in the new ui  
 ![thunk](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/7/2/72326f25694a6c95ddd74fc58178e75d1e2f4c50.png)

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**Author:** ![muneer](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/muneer/32/75210_2.png) [@muneer](https://community.thunkable.com/u/muneer)\
**Post date:** [June 15, 2021, 10:14am UTC](https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940/3 "2021-06-15T10:14:38Z")

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Use this instead  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/d/d/dd75d33a6dc30d3a263dfdefce142348d93cd897.png)

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**Author:** ![tony.ycy.program](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tony.ycy.program/32/100153_2.png) [@tony.ycy.program](https://community.thunkable.com/u/tony.ycy.program)\
**Post date:** [June 15, 2021, 12:21pm UTC](https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940/4 "2021-06-15T12:21:20Z")

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But cannot use variables that have not been initialized? !

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**Author:** ![muneer](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/muneer/32/75210_2.png) [@muneer](https://community.thunkable.com/u/muneer)\
**Post date:** [June 15, 2021, 1:31pm UTC](https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940/5 "2021-06-15T13:31:55Z")

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I did not understand. Can you please make it clearer.

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**Author:** ![sketch](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/sketch/32/109058_2.png) [@sketch](https://community.thunkable.com/u/sketch)\
**Post date:** [June 15, 2021, 2:13pm UTC](https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940/6 "2021-06-15T14:13:53Z")

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As far as i know.  
Dynamic variabeles don’t support that.

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [November 8, 2024, 1:20pm UTC](https://community.thunkable.com/t/db1-add-listener-in-new-ui/1345940/7 "2024-11-08T13:20:17Z")

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