Enforcing specific formatting into into a text field in a plugin.

[TyHol]

Hi,

I'm trying to format input into a text field in a plugin

The text field is supposed to only allow input in the format "X 00000 00000"

• on windows 11 (Qfield 3.4.5) this works correctly and restricts the user to the specifed format.
• on android (honor magic 4 pro) (Qfield 3.4.7) it does not.

I've attached the plugin - when selecting 'Irish Grid' as the input method the text field is supposed to be restricted to the format "X 00000 00000"

Has anyone any ideas what I've done wrong?
Thanks in advance,
Tony.

        //// The validation code is:  
    
            TextField {
            id: irishGridInputBox
            Layout.fillWidth: true
            placeholderText: "Enter in format: X 00000 00000"
            // Custom validation logic
            onTextChanged: {
                // Remove any non-alphanumeric characters (except spaces)
                var cleanedText = irishGridInputBox.text.replace(/[^A-Za-z0-9\s]/g, '')

                // Ensure the first character is a valid letter from the matrix
                if (cleanedText.length > 0 && !igletterMatrix[cleanedText[0].toUpperCase()]) {
                    cleanedText = cleanedText.substring(1)
                }

                // Insert spaces at the correct positions
                if (cleanedText.length > 1 && cleanedText[1] !== ' ') {
                    cleanedText = cleanedText[0] + ' ' + cleanedText.substring(1)
                }
                if (cleanedText.length > 7 && cleanedText[7] !== ' ') {
                    cleanedText = cleanedText.substring(0, 7) + ' ' + cleanedText.substring(7)
                }

                // Ensure the characters after the first space are digits
                if (cleanedText.length > 2) {
                    var firstNumberPart = cleanedText.substring(2, 7)
                    if (!/^\d{0,5}$/.test(firstNumberPart)) {
                        firstNumberPart = firstNumberPart.replace(/\D/g, '')
                        cleanedText = cleanedText.substring(0, 2) + firstNumberPart + cleanedText.substring(7)
                    }
                }

                // Ensure the characters after the second space are digits
                if (cleanedText.length > 8) {
                    var secondNumberPart = cleanedText.substring(8, 13)
                    if (!/^\d{0,5}$/.test(secondNumberPart)) {
                        secondNumberPart = secondNumberPart.replace(/\D/g, '')
                        cleanedText = cleanedText.substring(0, 8) + secondNumberPart + cleanedText.substring(13)
                    }
                }

                // Limit the total length to 13 characters (X 00000 00000)
                if (cleanedText.length > 13) {
                    cleanedText = cleanedText.substring(0, 13)
                }

                // Update the text field
                irishGridInputBox.text = cleanedText
            }

            // Function to validate the final input
            function isValidInput() {
                var regex = /^[A-Za-z]\s\d{5}\s\d{5}$/
                return regex.test(irishGridInputBox.text) && igletterMatrix[irishGridInputBox.text[0].toUpperCase()]
            }
        }

qfield-plugin-addpoints.zip