How to save chat history, using App Inventor 2 and PubNub ?

[Pavel Lunegov]

At first, thanks for idea! Taifun is awesome=)
I`ve changed something in a blocks area for my personal look.Everything works but i still cant find info about saving the history of previous messages...For example, when i enter the chat and there is some discussions that i cant see..just my first visit and no idea about what they are talking about=) And one more question. After entering text in a text and sending, my message still appears in the text box. And when you want to enter a new text you must delete old message .. I want to fix it. Thank you .

[Taifun]

to get the history, see Q2 here https://puravidaapps.com/pubnub.php#q

After entering text in a text and sending, my message still appears in the text box. And when you want to enter a new text you must delete old message .

after sending, set textbox.text to empty string

Taifun

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Trying to push the limits of App Inventor! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun. 

[Pavel Lunegov]

I saw that message, but i dont know how to change it...It seems like a code.. very familiar to html but i dont know where the code is located=(

[Pavel Lunegov]

" set textbox.text to empty string "  where is it? Can you show me te block? 

[Taifun]

A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook   http://www.appinventor.org/book2 ... the links are at the bottom of the Web page.  The book 'teaches' users how to program with AI2 blocks.

There is a free programming course here http://www.appinventor.org/content/CourseInABox/Intro  and the aia files for the projects in the book are here:  http://www.appinventor.org/bookFiles  

How to do a lot of basic things with App Inventor are described here:  http://www.appinventor.org/content/howDoYou/eventHandling  .

Also do the tutorials http://appinventor.mit.edu/explore/ai2/tutorials.html to learn the basics of App Inventor, then try something and follow the

 Top 5 Tips: How to learn  App Inventor

You will not find a tutorial, which does exactly what you are looking for. But doing the tutorials (not only reading a little bit) help you to understand, how things are working. This is important and this is the first step to do.

Taifun

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Trying to push the limits of App Inventor! Snippets and Tutorials from Pura Vida Apps by  Taifun.         

[Pavel Lunegov]

Thanks, but your answer is not the answer i was expecting for....

[Pavel Lunegov]

I did not find info about Q2 and those strings,looking like a php or html.... how can i modify and add them to view a history of my chat?

[Taifun]

compare the documentation from PubNub with the App Inventor solution

for example 

To subscribe a message, issue a GET Request in the following format.

        http://pubsub.pubnub.com
        /subscribe
        /sub-key
        /channel
        /callback
        /timetoken
  

now do the same for history

  http://pubsub.pubnub.com
          /history
          /sub-key
          /channel
          /callback
          /limit


Taifun

PS: it helps to learn the basics first...

[Pavel Lunegov]

So..everything works fine.thank you! I still have problems with chat history. I only can get a list of messages via my PC browser using the :

http://pubsub.pubnub.com
          /history
          /sub-key
          /channel
          /callback
          /limit

Everything is ON in a Storage and Playback add-ons... Is it possible to see it on Android,not only via browser?

[Pavel Lunegov]

I think i am too stupid for that...I need chat history on my device,not only in a browser. Is it possible to do?

[Taifun]

It would really help if you provided a screenshot of your relevant blocks, so we can see what you are trying to do, and where the problem may be.

Taifun

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Trying to push the limits of App Inventor! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun. 

[Pavel Lunegov]

Thanks for your response!!! I`ve made some changes,such as translations on russian and adding some CLICK melody when sending.... I just want to see the previous history ,every time i come in to chat... And it is a good idea to make sound notifications,when you recieve someting... Can you understand what i am talking about? I am writing without translators...i am russian=)

[Taifun]

so where exactly is your new procedure to get the history following the subscribe example?

and where is the new WebHistory.GotText event to receive the history, assuming you added a new web component to get and receive the history?

it does not look like you added anything new to the existing example project...

again: first learn the basics...

Top 5 Tips: How to learn App Inventor

Taifun

[Pavel Lunegov]

Yes, you absolutely right..Nothning Mega and Extra changed..Just the beginning... Your advise for learning is good and if i never tried to do something like that in APP inventor, i would never get success. It is a new step for me. Databases and Web elements. As you see i have API from PubNub and they work fine... Can you show me "how to" and thats gonna be the most powerful expirience for me...Thanks.

[Pavel Lunegov]

So i have to add Web event like you did (WebPub and WebSub) and call it WebHistory,for example... Than i must create a link to PubNub for calling the history...is it right? 

[Pavel Lunegov]

So... here is my first step...