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Thread: Android, character counter for TextEdit

  1. #1
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    Default Android, character counter for TextEdit

    I'm trying to write a character counter for a TextEdit field.
    I have tryed numerous ways that work fine on the desktop, but on Android it fails when the space key is pressed and then only works when space key is pressed.
    What am I missing?

  2. #2
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    Default Re: Android, character counter for TextEdit

    I am not sure I understand.
    The length of the text does not increase if spaces are added on Android?

    Cheers,
    _

  3. #3
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    Default Re: Android, character counter for TextEdit

    No, here is some code that shows the problem:
    Qt Code:
    1. import QtQuick 2.0
    2. import QtQuick.Controls 1.3
    3. Item {
    4. Rectangle {
    5. id: textin
    6. anchors.top: parent.top
    7. anchors.topMargin: parent.height / 10
    8. width: parent.width * 0.8
    9. height: parent.height / 3
    10. anchors.horizontalCenter: parent.horizontalCenter
    11. border.color: "#000000"
    12. TextEdit {
    13. id: ptext
    14. anchors.fill: parent
    15. clip: true
    16. textMargin : 10
    17. wrapMode : Text.WordWrap
    18. text: "test"
    19. onTextChanged: {
    20. textcount.text = ptext.text.length
    21. console.log(text, ptext.text.length)
    22. }
    23. }
    24. Text {
    25. id: textcount
    26. anchors.bottom: textin.bottom
    27. anchors.right: textin.right
    28. width: parent.width * 0.2
    29. height: parent.height * 0.2
    30. }
    31. }
    32. }
    To copy to clipboard, switch view to plain text mode 

    qrc:/debug.qml:19 (onTextChanged): qml: test 4
    qrc:/debug.qml:19 (onTextChanged): qml: testa 5
    qrc:/debug.qml:19 (onTextChanged): qml: testab 6
    qrc:/debug.qml:19 (onTextChanged): qml: testabc 7
    qrc:/debug.qml:19 (onTextChanged): qml: testabc 8
    qrc:/debug.qml:19 (onTextChanged): qml: testabc 8
    qrc:/debug.qml:19 (onTextChanged): qml: testabc 8
    qrc:/debug.qml:19 (onTextChanged): qml: testabc 8
    qrc:/debug.qml:19 (onTextChanged): qml: testabc 8
    qrc:/debug.qml:19 (onTextChanged): qml: testabc test 12
    qrc:/debug.qml:19 (onTextChanged): qml: testabc test 13

  4. #4
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    Default Re: Android, character counter for TextEdit

    So after the first space the text doesn't actually change until the next space?

    I wonder why that triggers onTextChanged at all.

    Maybe the input method or virtual keyboard on Android holds modifications back, e.g. for auto completion, etc.?

    Cheers,
    _

  5. #5
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    Default Re: Android, character counter for TextEdit

    Yes thats the problem.
    I don't use auto-completion and the characters show in the TextEdit field.
    Any idea how to write a text lenght counter in QML that works on Android?

    Cheers,

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