Android Tutorial [B4X] Cross platform chat layout example

Erel · Dec 31, 2019

Example of implementing a chat layout.
It is based on xCustomListView. The text is created with a hidden BBCodeView (BCTextEngine) and the bubble is drawn with BitmapCreator.
Extracting the image from BBCodeView is not trivial. See the code.

The code is implemented in the Chat class which is shared between the three projects.

BCTextEngine: https://www.b4x.com/android/forum/threads/106207/#content

Mike1970 · Jan 27, 2020

Great Job.
A small question: i tried to change the properties of the TextField in the designer, but then when the code runs, it reset to a white rectangle. How can i change the design?

Erel · Jan 27, 2020

Mike1970 said:
i tried to change the properties of the TextField in the designer

What have you changed? There is no TextField in this example. It is a B4XFloatTextField.

Mike1970 said:
but then when the code runs, it reset to a white rectangle

I don't understand what you mean. Better to post a screenshot.

Mike1970 said:
How can i change the design?

I don't see how we can answer this question.

For further discussion please start a new thread in the questions forum and make sure to include all relevant information.

LucaMs · Jan 27, 2020

Mike1970 said:
Great Job.
A small question: i tried to change the properties of the TextField in the designer, but then when the code runs, it reset to a white rectangle. How can i change the design?

For the moment you can change it in the Initialize routine of the Chat class - added one last line:

B4X:

Public Sub Initialize (Parent As B4XView)
    Parent.LoadLayout("1")
    Engine.Initialize(Parent)
    bc.Initialize(300, 300)
    TextField.NextField = TextField
   
    TextField.mBase.Color = xui.Color_LightGray ' <--------
End Sub

Then you will get a better answer

P.S. Erel replied simultaneously

Android Tutorial [B4X] Cross platform chat layout example

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