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POQML state not changing on C++ signal
 

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  1. POQML state not changing on C++ signal
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    <p>I'm struggling to understand the QML state concept.</p> <p>I have the following code:</p> <pre><code>import QtQuick 2.1 import QtQuick.Controls 1.0 Rectangle{ id: myRectangle width: 500 height: 120 state: "init" Button { id: myBtn1 text: "hello" anchors.right: parent.right anchors.rightMargin: 40 anchors.verticalCenter: parent.verticalCenter onClicked: { console.log("trying to change state to myState " myRectangle.state = "customState" } } Button { id: myBtn2 text: "bye" anchors.right: parent.right anchors.rightMargin: 40 anchors.verticalCenter: parent.verticalCenter onClicked: { myCppObject.coolFunction() } visible: false } Connections { target: myCppObject onCoolSignal: { console.log("signal triggered") console.log("state before signal: " + myRectangle.state); myRectangle.state = "init"; console.log("state after signal: " + myRectangle.state); } } states: [ State { name: "init" PropertyChanges { target: myBtn1 visible:true } PropertyChanges { target: myBtn2 visible: false } }, State { name: "customState" PropertyChanges { target: myBtn1 visible: false } PropertyChanges { target: myBtn2 visible: true } } ] } </code></pre> <p>My intension is that on click on the "myBtn1" this button should disappear and "myBtn2" should show up. Therefore I use the states as described and it so far it work! The state changes and the button with the label "bye" is visible.</p> <p>In the next step the click on the button "myBtn2" calls the function "coolFunction" of "myCppObject" which only purpose is to emit a signal called "coolSignal" - which also works! My problem is that I do get the expected output in the console which is like:</p> <pre><code>signal triggered state before signal: customState state after signal: init </code></pre> <p>but "myBtn1" stays hidden and "myBtn2" stays visible!!! So the state is not really changed!!! Any ideas what I'm not understanding about states in QML?</p> <p>btw: if I change <code>myBtn2.onClick</code> to <code>myRectangle.state = "init";</code> the state transition works!!! But I really need it to happen on a custom C++ signal!</p> <p>Thanks for any kind of help in advance.</p> <p>EDIT: I forgot to say that I don't use the source code written on the top inside the main.qml. It's inside an extra QML File called MyElem.qml which used as delegate elem for a listview. This means while running there is more than one of MyElem loaded and all of them have the same id (myRectangle). Is this the reason why I don't see any visual changes? </p>
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    1. COI just figured out that not only the signal changes within the Connection take no visible effect, but also all other visible effect like `myBtn.visible = false`. So do I need to rerender the Rectangle somehow???
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