Sometimes you need to stop a piece of code and explain why you have to do it.
A good way is to raise an exception and to give information about the reason why.
This little class offers you a pratical way to do this :
1) Add the class to your project
Public fException As clsException...
The class clsPopupMenu shows a Popup Menu which can own sub menus.
The options are stored in a map. In the example they are in json file in the assets folder.
3 events are fired :
- open : A popup menu has been opened
- click : An option has been clicked
- close : A popup menu has...
You can create class modules in B4R but they act as singletons - I can't define a class module say "MQTTBUNDLE" and then create instances of that class. I know the whole thing about low resources and all that but is this something that might be possible in the future? I'm using Types for this...
This class can parse JSON to generate CSBuilder.
Create a json string, save it in a file, add it to assets folder, and display it with this class.
All the CSBuilder capabilities are supported.
Comments in clsCSBuilderParser.bas and samples files explains the JSON structure.
Up to this point in B4A, I have always used the classic CallSubDelayed()/CallSub() as appropriate to call subs in Activities or Services. However, by mistake I called a sub (defined within a class) in the Starter service using the classic OOPs format Starter.objectName.subName - and it...
The Raspbee (or Conbee, which is the USB version - the information here will only refer to the Raspbee) from Dresden Elektronik (https://shop.dresden-elektronik.de/raspbee.html, also available elsewhere, e.g. on Amazon) is a Zigbee (https://www.zigbee.org/) radio board for the...
This is a class (clsCameraIntent) inspired by this thread.
It adds Video support.
One line of code in your activity to call the camera intent
One Callback sub in your activity to get the dirame and filename of the picture/video taken/recorded
Demo Project with class in zip attached
Here's a small class which produces a simple popup menu anchored to a view. It works in B4A and B4i currently.
I've attached projects to show how it is used.
[Edit] New version 1.1 has better support for popup menus inside (nested?) scrollviews.
Hi, everyone, im trying to use the Place Autocomplete View from Erel.
I have the necessity to hide (or show) the view as i want by code, but the command:
PlaceAutocompleteView.Visible = False
doesn't exist... how can i solve this?
Class Name TimeSwitch
Type HourSettings(q1 As Boolean,q2 As Boolean,q3 As Boolean,q4 As Boolean)
Private DaySettings(24) As HourSettings '0 to 23
'Initializes the object. You can add parameters to this method if needed.
FaceDetector is a class that uses Apple's Vision framework which was introduced with iOS11.
The class basically returns a list of detected faces, and each face consists of a list of floats which represent the x and y coordinates of various face landmarks. The class explicitly exposes the left...
Ciao a tutti,
provo a fare una lista delle cose che ho pubblicato fino a oggi, non sono sicuro però che siano tutte.
[Class] Class with Input-Dialog
I tried to use Erel's new class (https://www.b4x.com/android/forum/threads/class-fileprovider-share-files.97865/#content) to share an image. I tried to share an image by the example of sharing a file, but the app crashed...
Does anybody have an example of sharing an image(only) using...
If we want to include support for CharSequence in our classes and libraries, should we be changing external-facing String parameters (and any related internal ones) to CSBuilder?
(If I understand correctly, we can't reference CharSequence directly.)
I developed a class (compiled in library) that makes use of Typeface.MATERIALICONS, but when I tried using it there was this error:
java.lang.RuntimeException: Font asset not found b4x_materialicons.ttf
I could not find a thread summarizing this problem in this forum for a workout, but the...
I have to create an application by custom components class.
in which I want all same property of default object.
like Button class, I want to create my custom components button which contains all property and event of buttons. like in other software, there is option of base class...
I have a class file name funcs, and there is a code like this
Public Sub statusBarColor(color As Int)
If ph.SdkVersion >= 21 Then
Dim jObj As JavaObject
Dim window As JavaObject = jObj.RunMethodJO("getWindow", Null)...