Tutorials & Examples

Hi everyone,

After a week I have finally figured it out how to add a custom font for the whole application without any library or extra code.

Here is the solution:

1. Create a folder...

 

Hallo,

from time to time someone is asking on how to create a pdf with b4a.
I dont know how to do that ONLY with b4a.

Today i spend a few hours to write a b4a-example and a php-script which...

 

AdMob supports ads mediation. This means that the ad can come from different ad networks and not just from Google AdMob network.

It can improve the fill rate and the revenue earned.

...

 

The creation of layouts is very easy with the B4A Designer.

With more complex forms, however, it can happen that the result looks a bit weird. Usually the heights or distances between the...

 

Android 4.2 includes a new powerful screen saver feature named Daydream.

A "dream" starts when the device is docked or charged and the screen timeouts. By default dreams are non-interactive...

 

This example shows how to modify the table data. When the user clicks on a cell we show an input dialog and let the user...

 

While analyzing a Crashlytics crash report of a small app of mine I was surprised to see the following error:

Fatal Exception: java.lang.NumberFormatException
For input string...

 

In this example the table is used to show the camera roll photos.

Main steps:
1. Get permission to access the external...

 

As you might know, I do a lot of apps which communicate with my Apache servers via httputils and php. For a longer time I was missing some strong encryption. I knew that there was agrahams...

 

xCustomListView v1.50 adds an important new event named VisibleRangeChanged. This event is fired whenever the visible range of items changes.

We can use this event to defer the items creation...

 

https://www.elektor.com/android-app...s-designers?___store=default&___from_store=nl

...

 

Someone asked me to do something like FloatLabeledEditText.

I made this example. It is not identical, but it is a track or a point of partenzs for those who want to create a similar one

 

Android 6.0 Marshmallow introduced a new floating text selection toolbar, which brings the standard text selection actions, like cut, copy, and pastes, closer to the text you’ve selected...

 

This example uses xCustomListView to implement a list of cards.

As the items layout is created with the designer, it is simple to implement any layout you like. You can also combine...

 

DISCLAIMER:
This tutorial is written without testing code. There may be bugs, but try to understand the process, not copy the code.


An intent is a way for different applications...

 

Updated instructions are available here: https://www.b4x.com/android/forum/threads/adaptive-icons-simple-instructions-and-tips.123843/

Starting from Android 8 apps should include an...

 

I am happy to announce that the English version of the B4A tutorial and reference book "Rapid Android App Development using BASIC" by Wyken...

 

Edit: Don't use this code. Use B4XTableSelections class instead:

[B4X] B4XTableSelections - extended selection modes for B4XTable

B4XTableSelections extends B4XTable and adds new selection modes: SINGLE_CELL_TEMP - this is the built-in selection mode. Unlike the other selection modes it disappears automatically. SINGLE_CELL_PERMANENT - selection of a single cell. SINGLE_LINE_PERMANENT - selection of a single line...

www.b4x.com

This...

 

I had issues when i did an animation like clicking on a button and shrink it that if you click twice on it it will perform 2 times or more the animation you want to do or if you start a task that...

 

Original tutorial: Immersive Mode - hide the navigation bar (by @Erel )

So the above tutorial works for those devices which do not have a Notch. Devices with a notch will...