Problem with chat app

Hello. I’m making a chat application and I want a long click on any message to show a warning and some actions to appear. I did this but it didn’t work

And there is a question when the message is sent, me and the other party did the sending process with if else but I don’t know what to do instead of if

Please provide blocks image in english language

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Please provide AIA file
blocks image in english language

I refreshed the pictures

If anyone knows can help?