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Thread: using a busy indicator when loading component

  1. #1
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    Default using a busy indicator when loading component

    I want to use a busyIndicator when loading a qml component.... but no indicator appears

    qml

    Qt Code:
    1. BusyIndicator {
    2. id: userEvent_busyInd
    3. anchors.centerIn: parent
    4. anchors.verticalCenterOffset: 100
    5. z: 100
    6. running: usereventcomponent.status === usereventcomponent.Loading
    7. }
    8.  
    9. Action {
    10. id: action_userEventLogBtn
    11. enabled:!inSequence
    12. onTriggered:{
    13. //----Code to Load User Event Dialog-----//
    14. UserEventLog.init();
    15. weld_view.state = "USEREVENT"
    16. xmui.insertLogMessage(rootItem.getUserName(), "User entered userEventDialog");
    17. }
    18. }
    19.  
    20. State {
    21. name: "USEREVENT"
    22. PropertyChanges {target: mask; visible:true; z: 1;}
    23. PropertyChanges {target: usereventlog_loader; sourceComponent:usereventcomponent;}
    24. }
    25.  
    26. Loader{
    27. id: usereventlog_loader
    28. width: 1300
    29. height: 600
    30. anchors.horizontalCenter: parent.horizontalCenter
    31. anchors.verticalCenter: parent.verticalCenter
    32. sourceComponent: null
    33. z: 3
    34. }
    35.  
    36. Component {
    37. id: usereventcomponent
    38. UserEventDialog {
    39. id: userEventLog
    40. }
    41. }
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  2. #2
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    Default Re: using a busy indicator when loading component

    Does the loading take long enough for the indicator to even become visually recognizable?

    Does it show when you just set its "running" property to true?

    Cheers,
    _

  3. #3
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    Default Re: using a busy indicator when loading component

    yes it shows when I set the running property to true.

    I was wondering the same thing if it takes long enough for the indicator to be visible I'm not sure how to tell. I eventually want to use the busyIndicator to when searching database... but would like to get simpler version working first when jsut the qml component loads....

  4. #4
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    Default Re: using a busy indicator when loading component

    The Loader could be too quick for you to notice the indicator.

    Try something like a Timer element to change a boolean property after a noticable time, e.g. 200ms.

    Cheers,
    _

  5. The following user says thank you to anda_skoa for this useful post:

    jfinn88 (27th September 2016)

  6. #5
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    Default Re: using a busy indicator when loading component

    that's what I was thinking I will give it a try...

    update: not able to get it working right....

    the interval property seems to delay the busyIndacator image from appearing instead of the component...

    Qt Code:
    1. Timer {
    2. id: delay
    3. interval: 5000
    4. onTriggered:{
    5. userEvent_busyInd.running = true
    6. }
    7. }
    8.  
    9. BusyIndicator {
    10. id: userEvent_busyInd
    11. anchors.centerIn: parent
    12. anchors.verticalCenterOffset: 100
    13. z: 100
    14. running: true //usereventcomponent.status === usereventcomponent.Loading
    15. }
    16.  
    17. Component.onCompleted: {
    18. delay.stop();
    19. userEvent_busyInd.running = false
    20. }
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    action that loads component

    Qt Code:
    1. Action {
    2. id: action_userEventLogBtn
    3. enabled:!inSequence
    4. onTriggered:{
    5. //----Code to Load User Event Dialog-----//
    6. UserEventLog.init();
    7. weld_view.state = "USEREVENT"
    8. xmui.insertLogMessage(rootItem.getUserName(), "User entered userEventDialog");
    9. //onLoaded: console.log("User Event Log");
    10.  
    11. //---Busy Indicator---//
    12. delay.start();
    13. }
    14. //Component.onCompleted: {
    15. //userEvent_busyInd.running = false
    16. //}
    17. }
    18.  
    19. State {
    20. name: "USEREVENT"
    21. PropertyChanges {target: mask; visible:true; z: 1;}
    22. PropertyChanges {target: usereventlog_loader; sourceComponent:usereventcomponent;}
    23. }
    24.  
    25. Component {
    26. id: usereventcomponent
    27. UserEventDialog {
    28. id: userEventLog
    29. }
    30. }
    31.  
    32. Loader{
    33. id: usereventlog_loader
    34. width: 1300
    35. height: 600
    36. anchors.horizontalCenter: parent.horizontalCenter
    37. anchors.verticalCenter: parent.verticalCenter
    38. sourceComponent: null
    39. z: 3
    40. }
    To copy to clipboard, switch view to plain text mode 
    Last edited by jfinn88; 27th September 2016 at 20:32.

  7. #6
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    Default Re: using a busy indicator when loading component

    I was thinking more along the lines of using the timer to stop the busy indicator instead of starting it.
    Simulating the operation you will later on want to end the busy indicator when its done.

    Cheers,
    _

  8. #7
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    Default Re: using a busy indicator when loading component

    I see... let me mess around with it... thanks

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