Android Tutorial ADeveloper - B4A tutorials

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I started a channel in youtube for B4A. Erel made some other tutorials which you can find here. I am trying to make tutorials with more simple language every one or two days.

• How to install B4A
• Download and Image from Internet
• WebP in B4J and B4A
• Custom list View:
  • Simple xCustomListView
  • CustomListView(CLV) + Lazy Loading(1)
  • CustomListView(CLV) + Lazy Loading(2)
  • CustomListview(CLV) + PreOptimizedCLV (better option for lazy loading)
  • CustomListview(xClV) Item click and changing value
  • CustomListview(xCLV) remove Item + slide animation
  • CustomListview(xCLV) CLVswipe
  • CustomListview(xCLV) CLV Pull to refresh
• how to connect b4a to NOX player for testing the application.
• WebView load url and load html
• AHNavigationDrawer
• SQLite:
  • Sqlite database for beginners - part 1
  • Sqlite database for beginners - part 2
  • Sqlite database + xCLV - part 3
  • Sqlite database : searching in SQLite database - part 4
• B4A UI Tutorial:
  • B4A UI tutorial: introduction to Figma - part 1
  • B4A UI tutorial: introduction to Figma - part 2
  • B4A UI tutorial: introduction to Figma - part 3
  • B4A UI tutorial: from Figma to B4A - part 1
  • B4A UI tutorial: from Figma to B4A - part 2
• B4X Pages:
  • Introduction to B4xPage
  • Titlebar in B4XPages
  • Changing the color of Toolbar
  • Splash in B4Xpages
  • page transition in B4Xpages.
• B4XViews - XUI
  • B4XDrawer
  • B4XDialog <--- New one

 

[ADeveloper]

Thanks for supporting my channel.


related topic:

[B4X] CLVSwipe - xCustomListView Swipe actions and pull to refresh

CLVSwipe is a class that adds "swipe actions" and pull to refresh features to the standard xCustomListView library. It is compatible with B4A and B4i (currently not with B4J). Both features are optional. Using it is simple: 1. Add the class to your project. It depends on XUI...

www.b4x.com

 

[adhiemsumitro]

I've added your channel to: https://www.b4x.com/learn.html

I got error when accessing the very first video on https://www.b4x.com/etp.html :

Vimeography Error: There was an error fetching the embed code from Vimeo

 

[Erel]

Please start a new thread for this in the questions forum.

 

[ADeveloper]

B4Xpages is one of the must have libraries in most of applications. instead of going from one activity to another activity ( which makes the application heavy for the phone ) you just go from one page to another page.

In this tutorial we are going to learn:
- why should I use b4xPages?
- how to go from one page to another one in b4xPages.

 

[AnandGupta]

In this tutorial we are going to learn:
- why should I use b4xPages?
- how to go from one page to another one in b4xPages.

Very clearly explained

Regards,

Anand

 

[ADeveloper]

I have been busy for last month and haven’t been uploading for about two months
So I apologize for that and will do my best to upload a new video every two or three days in this month.
Please watch the new tutorial about B4Xpages:



B4Xpages is a wonderfull library and in following tutorial I will talk about transition animation and other techniques in B4Xpages.

 

[ADeveloper]

Changing the color of toolbar in B4XPages and defining the theme in general :



check my last video clip

 

[TILogistic]

Good explanation, using external tools like material.io

Congratulations

 

[AnandGupta]

@ADeveloper I subscribed to your channel

Generally I do not subscribe to any YT channels as I do not get enough time to watch them. But I think 'subscribing' to your channel will help me more than I expect.

Thank you.

Regards,

Anand

 

[ADeveloper]

@ADeveloper I subscribed to your channel

Generally I do not subscribe to any YT channels as I do not get enough time to watch them. But I think 'subscribing' to your channel will help me more than I expect.

Thank you.

Regards,

Anand

That is kind of you
B4X is very powerful and I hope I can show its power to others who don't know about it, by my tutorials.

how to make spleash screen by B4Xpages:

 

[ADeveloper]

click here to watch the clip

 

[Mashiane]

And the Tshirt? I want one, whats the plan?

 

[AnandGupta]

And the Tshirt? I want one, whats the plan?

Yeah, noticed too.

Am hoping he will post download link for the Tshirt too

Regards,

Anand

 

[ADeveloper]

And the Tshirt? I want one, whats the plan?

Actually one on my friends helped me and made it for me.

Anyway, the new clip is here:

 

[Spavlyuk]

Wouldn't it be better to put the animation inside the B4XPage_Appear event?

 

[ADeveloper]

Wouldn't it be better to put the animation inside the B4XPage_Appear event?

Check out here:

• B4XPage_Created - Called once when the page is created. This will happen before the page becomes visible or after a call to B4XPages.AddPageAndCreate.
• B4XPage_Appear - Called whenever the page becomes visible.

B4XPage_Created is before the page becomes visible. so if you want to use the animation inside default events you should include it inside B4XPage_Created
It seems B4XPage_Appear is after that. This event will start once the page is already visible. so if you include the animation code there, you see a lind of blink on page.

I prefer separate event for animation, this way I can handle all animations in a shared module later ...

 

[ADeveloper]

B4XPages make the coding easier for you from different aspects. you can see plenty of them here:
https://www.b4x.com/android/forum/threads/b4x-b4xpages-what-exactly-does-it-solve.119078/

I am going to tell you, two of them which are important and make you coding faster and easier.

 

[Peter Simpson]

B4XPages make the coding easier for you from different aspects.

Hello M, another good tutorial video from yourself, these videos should hopefully help lots of developers to transition more easily over to using B4XPages.

Just my 2 cents and not a criticism in any way shape or form. But even though this tutorial does what it's supposed to and does work as advertised, I would personally have done 2 extremely simple things differently.

1. Instead of declaring Label1 as a Label through the designer, I would have declared Label1 as a B4XView (especially as you're using B4XPages).
2. Instead of manually declaring the EditText as Dim in the code module, I would have declared it as Public (for obvious reasons).

You say that you hope that Erel fixes the Dim (from layout) to read Dim in code modules, I can see where you are coming from with that, but no. If Erel was going to change the Dim wording in the layout of the designer, I would say should that Dim should say 'Declare', as in Declare View as Label/EditText etc, or Declare View as B4XView. I personally think that declaring views from the layout should be left as Private (in the code modules) and not changed to Dim (which it used to be a few years ago).

Anyway, keep up the great work. I'm sure that your video tutorials will help to bring new developers to b4x.com.

I've just sent you a PM.


Cheers...

 

[ADeveloper]

Just my 2 cents and not a criticism in any way shape or form. But even though this tutorial does what it's supposed to and does work as advertised, I would personally have done 2 extremely simple things differently.

1. Instead of declaring the Label1 as a Label through the designer, I would have declared it as an B4XView (especially as you're using B4XPages).
2. Instead of manually declaring the EditText as Dim in the code module, I would have used Pubic (for obvious reasons).

Thank you very much for watching my clips carfully while I know, you don't learn anything new from my clips and you are already a very good develper
you are right about those two points

 

[ADeveloper]

as @Peter Simpson suggested I started to make tutorial about XUI views. the first one is B4XDialog: