QML Loader ... How to unload or delete a qml page loaded on to Loader element

Question

I have loaded MyItem.qml as a source component onto Loader element. Now i want to remove or unload that page from Loader element. I tried to set source : "" & sourceComponent : "" , also sourceComponent : "undefined". But it did not work

Can you show us some code, [where you tried it (mcve)](http://stackoverflow.com/help/mcve)? — derM - not here for BOT dreams, Feb 15 '17 at 15:57

albertTaberner · Answer 1 · 2018-05-05T07:25:30.660

7

You should set sourceComponent = undefined or source = "". Usually, I use this code:

Loader{
    id: loader
    function show(component) {
        sourceComponent = component;
    }
    function hide(){
        sourceComponent = undefined;
    }
}

edited May 05 '18 at 07:25

answered Jul 27 '17 at 14:27

albertTaberner

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The documentation clearly say that you need to specify undefined instead of null, still, this solved the issue for me :) – Matteo Nov 07 '17 at 11:49

score 3 · Answer 2 · answered Feb 16 '17 at 09:11

3

You can just set the active property to false for unload or true (default) for loading.

answered Feb 16 '17 at 09:11

Kevin Krammer

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Such a simple and concise solution. This has become my preferred way. – Paul Masri-Stone Sep 29 '22 at 11:20

score 0 · Answer 3 · answered Jul 28 '17 at 07:25

You didn't say what the actual issue was, but in case you ran into errors where the component you're trying to unload is trying to access things it shouldn't, it could be because Loader deletes the item using deleteLater(), which means it doesn't get deleted instantly. See this bug report for more info:

https://bugreports.qt.io/browse/QTBUG-60344

score 0 · Answer 4 · edited Sep 15 '22 at 02:55

0

For example there is this loader:

Loader {
    id: loaderLanguage
}

to inactive:

loaderLanguage.active= false

edited Sep 15 '22 at 02:55

iam_peter

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answered Sep 05 '22 at 12:38

M.M

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QML Loader ... How to unload or delete a qml page loaded on to Loader element

4 Answers4