Android Question AST NEW TEXT

Arturs · Oct 28, 2015

Hi

I have the following code:

B4X:

Sub ast_NewText(Text As String)
      
    Log(Text)
   lab_test.Text = Text

End Sub

External device send me the following string : "TEST B4A" and in Log windows I see the received String
but in lab_test (label) it is not diplayed.

Where is a problem ?

Regards
Artur

DonManfred · Oct 28, 2015

Arturs said:
Where is a problem ?

Maybe the missing code where we can see what you have done with lab_test and how....

Arturs · Oct 28, 2015

All actions related to lab_test is only above code and

B4X:

Sub Globals

    Private lab_test As Label

End Sub

I have created Label in Designer and that's all.

walterf25 · Oct 28, 2015

Arturs said:
All actions related to lab_test is only above code and

B4X:

Sub Globals Private lab_test As Label End Sub

I have created Label in Designer and that's all.

Is the background on your app White, if so try changing the background to any other color, or the textcolor to something else, i've seen something like this before, where i was not seeing the text on the label because my background was white and so was the text color on the label as well.

Cheers,
Walter

Arturs · Oct 28, 2015

The background color is ok because if I set text in this way: lab_test.Text = "B4A TEST" then everything is ok. I only cannot see text which was received via BT bu in Log windows I see the message.

EDIT:

I found Why The message is not displayed

From another device I send string "B4A TEST" & CRLF and the aplication goes into ast_NewText two times. First it receives my string, second Time it receives "empty" string.

Why does ast_NewText even is called two times ?

walterf25 · Oct 28, 2015

Arturs said:
The background color is ok because if I set text in this way: lab_test.Text = "B4A TEST" then everything is ok. I only cannot see text which was received via BT bu in Log windows I see the message.

Well then that's bizarre, are you sure the log you are seeing is the one from the ast_NewText(Text as String) Sub?

DonManfred · Oct 28, 2015

Arturs said:
I have created Label in Designer and that's all.

Have you loaded the layout where the label is placed to?

Without seeing code it is really hard to help

Arturs · Oct 28, 2015

I found Why The message is not displayed

From another device I send string "B4A TEST" & CRLF and the aplication goes into ast_NewText two times. First it receives my string, second Time it receives "empty" string.

If I send "B4A TEST" & CR" or "B4A TEST" & LF then everything is ok

Why does ast_NewText even is called two times when I send CR and LF together?

Erel · Oct 29, 2015

Are you sure that you are sending Chr(13) & Chr(10) and not the opposite?

You can use the debugger to see the values you receive.

Arturs · Oct 29, 2015

Erel you are right. I made a mistake I sent /n/r instead of /r/n. Now Everything is ok.

I have another easy question.

For example I have the below strings:

S1="test1:123,test2:456"
S2= "test3:4556"

How to get only value behind ":" for S1 and for S2.

It should be for S1
123 and 456
for S2
4556

Thank you for help

Regards
Artur

DonManfred · Oct 29, 2015

Arturs said:
For example I have the below strings

For the future:

- ALWAYS create a new thread for a new question.

Use RegEx to split the result into parts at the comata.Split the parts you get on : and then you have the single value(s).
Search forum about RegEx examples.

Android Question AST NEW TEXT

Arturs

Member

DonManfred

Expert

Arturs

Member

walterf25

Expert

Arturs

Member

walterf25

Expert

DonManfred

Expert

Arturs

Member

Erel

B4X founder

Arturs

Member

DonManfred

Expert

Similar Threads

Android Question AST NEW TEXT

Member

Expert

Member

Expert

Member

Expert

Expert

Member

B4X founder

Member

Expert

Similar Threads

Privacy & Transparency

Privacy & Transparency