B4A Library CustomKeyboard-Library

I developed a hexeditor to change the contents of hex-files. During the work I found that editing a hex-file by using the standard-softkeyboard is horrible. So I decided to write a library for an own softkeyboard. This library needs at least API-level-15

Good for understanding how it works is a posting of Maarten Fampennings which you can find here.
Also useful is a guide on the xda-developers-page. You'll find it here.

After a lot of pitfalls I got it working and can share it now. Because I don't have much sparetime I can't give much support.

With this CustomKeyboard-library you can replace the standard-softkeyboard with your self-designed-CustomKeyboard. You can use different keyboards and also different styles (see example 3). You also can have popup-minikeyboards for keys with more than one value. Have a good look in the 3 included examples and into the xml-files of the example-projects. Each method have an online-explanation of it's use included. You can add the EditTextView which you want to use with the CustomKeyboard by designer or with xml-file. The only difference between the two methods is that if you use the xml-method you can implement your owen full styling (textSelectHandle for example). If you use the designer-method you always get the standard styling from B4A. You can register as much EditTextViews as you like for each CustomKeyboard.
Declare just one CustomKeyboard-instance in your activity and use the RegisterEditText, ChangeKeyboardLayout/ChangeKeyboardStyle-methods to switch between different keyboards and styles (see example 3).

HOW TO USE:
  • put the CustomKeyboard.jar-file and the CustomKeyboard.xml-file into your AdditionalLibraries-folder
  • put the xml-file for the KeyboardView into the layout-folder of your project and mark it as writeprotected
  • put the xml-file(s) for the KeyboardLayout(s) into the xml-folder of your project and mark them as writeprotected
  • put all the drawables you used in the KeyboardLayout into the drawable-folder(s) of your project and mark them as writeprotected
  • put all your styling xml-files (if any) into the values-folder of your project and mark them as writeprotected
  • from now chose version a) (add EditTextView by designer) or version b) (add EditTextView by xml)

a)
  • place an EditTextView in the designer
  • in Activity_Create-sub load the designer-created layout-file into your Activity
  • initialize your CustomKeyboard with the Initialize-method of CustomKeyboard
  • register your EditTextView with the RegisterEditText-method of CustomKeyboard

b)
  • create an xml-file with an EditTextView, load it into the layout-folder of your project and mark it as writeprotected
  • in Activity_Create-sub load the designer-created layout-file into your Activity (if any)
  • with XmlLayoutBuilder load the EditTextView-xml-file into your Activity or any Panel
  • get the EditTextView with the GetAllViewsRecursive-method of XmlLayoutBuilder, remove it from parent and add again with layoutvalues
  • initialize your CustomKeyboard with the Initialize-method of CustomKeyboard
  • register your EditTextView with the RegisterEditText-method of CustomKeyboard


SUPPORTED EVENTS:

Keyboard related:
  • KeyboardEventName_KeyboardHeightChanged(NewHeight As Int, OldHeight As Int)
  • KeyboardEventName_onKeyUp(ViewTag As Object, PrimaryKeyCode As Int)
  • KeyboardEventName_KeyPressed (ViewTag As Object, PrimaryKeyCode As Int, AddKeyCodes() As Int) As Boolean
  • KeyboardEventName_onKeyDown(ViewTag As Object, PrimaryKeyCode As Int)

This events are all self-explanatory. You can catch the EditTextView which fired the event via the ViewTag (see example2)

EditText related:
  • eventName_Touch (Action As Int, X As Float, Y As Float, MotionEvent As Object) As Boolean, fires if the registered EditText is touched by the user
  • eventName_FocusChanged (HasFocus As Boolean), fires if the registered EditText gets or looses focus
  • eventName_Click(), fires if the registered EditText is clicked by the user
  • eventName_TextChanged (Old As String, New As String), fires if the text of the registered EditText has changed
  • eventName_HandleAction() As Boolean, fires if the CustomKeyboard of the registered EditText contains an Enter-key and this is pressed


AVAILABLE METHODS:
  • IsOScompatible () As Boolean
  • Initialize (KeyboardEventName As String, KeyboardViewFileName As String)
  • IsIntialized () As Boolean
  • RegisterEditText (editTextView As EditText, eventName As String, KeyboardLayoutFileName As String, showCursor As Boolean) As Boolean
  • UnregisterEditText (et As EditText) As Boolean
  • GetRegisteredStatus (et As EditText) As String
  • SetCustomFilter (et As EditText, DefaultInputType As Integer, AcceptedCharacters As String)
  • SetLengthFilter (et As EditText, MaxLength As Integer)
  • ShowKeyboard (et As EditText)
  • HideKeyboard ()
  • IsSoftKeyboardVisible () As Boolean
  • GetCurKeyboardStyle () As String
  • GetCurLayoutFile () As String
  • ChangeKeyboardLayout (et As EditText, KeyboardLayoutFileName As String) As Boolean
  • ChangeKeyboardStyle (KeyboardViewFileName As String) As Boolean
  • ChangeKeyValues (OldLabel As String, OldIsIcon As Boolean, NewLabel As String, NewIsIcon As Boolean, NewCodes() As Integer) As Boolean
  • ShowPreviewPopup (show As Boolean)
  • IsPreviewEnabled () As Boolean
  • SetHapticFeedbackEnabled (boolean goEnabled)
  • IsHapticFeedbackEnabled () As Boolean
  • SetShifted (goShifted As Boolean)
  • IsShifted () As Boolean
  • HandleBack () As Boolean
  • GetSelectionStart (et As EditText) As Integer
  • GetSelectionEnd (et As EditText) As Integer
  • SetSelection (et As EditText, start As Integer, stop As Integer)
  • DeleteSelection (et As EditText)
  • ExtendSelection (et As EditText, toIndex As Integer)
  • InsertText (et As EditText, text As String, startIndex As Integer) As Boolean
 

Attachments

  • CustomKeyboardSample2.zip
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  • CustomKeyboardSample3.zip
    349.7 KB · Views: 547
  • CustomKeyboardSample1.zip
    185.2 KB · Views: 512
  • CustomKeyboardLib.zip
    24.9 KB · Views: 529
Last edited:

joko0124

Member
Licensed User
Longtime User
I actually found the problem. If the activity had a background color in the designer, the keyboard didn't show up.
Like this
 

Attachments

  • Screenshot_2023-04-08-00-53-02-872_bwsi.PumpOperations.jpg
    Screenshot_2023-04-08-00-53-02-872_bwsi.PumpOperations.jpg
    343 KB · Views: 41

joko0124

Member
Licensed User
Longtime User
Already solved! I just have remove/sets the other panels elevation to zero. šŸ˜Š
 
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