@Yash001 See https://doc.qt.io/qt-5/qtquick-debugging.html "what is actual text of DQT_QML_DEBUG?" - there is no text. -DQT_QML_DEBUG sets QT_QML_DEBUG define (such defines can be checked in C/C++ code using #ifdef QT_QML_DEBUG). QT_QML_DEBUG activates "QML Debugging Infrastructure".

@vmanso said in Using QCustomPlot with Qt Quick (QML) instead of QWidget?: @SpaceToon Why not just use QtCharts instead of QCustomPlot ? https://doc.qt.io/qt-5/qtcharts-index.html But is it possible du plot sensor data via Bluetooth Low Energy in real time like this: Click for the video

@Quawetim I don't know which is better. For my comprehension, it is easier to use implicitHeight/implicitWidth of the item to be scrolled. For example, when the item is a ListView, implicitHeight is automatically updated when an element from the ListView is changed/added/removed. Your View item only have to set implicitHeight/implicitWidth and dynamically the ListView will adapt the scollbars limits/positions

try to add this to main.py import os os.environ["QT_IM_MODULE"] = "qtvirtualkeyboard"

@KroMignon said in qmlRegisterSingletonType object emit signal. Problem with qml slot connection: QEventLoop loop; Q_UNUSED(loop) I don't even know what this loop is supposed to do as exec() isn't called here

@Matheus-da-Silva-Ribeiro Please mark your answer as "Correct Answer" to change title to "Solved".

@adahl However when I tried to run it I get a complaint the file samba_conn_serial.dll could not be loaded, although the error message showed the complete path to that file and it was actually at that place. At first sight this seems very strange to me. Such errors could mean, that the DLL has own dependencies that are not satisfied. Dependency Walker is the tool of choice to debug that. Regardd

I just noticed that XYSeries is a uncreatable type, its derived object's Q_INVOKABLE method invoke member method of DeclarativeXySeries class, and DeclarativeXySeries is a shadow class about XYSeries. Such as LineSeries is imported from DeclarativeLineSeries.

Hi and welcome to devnet, Isn't that a system notification ?

https://www.linkedin.com/in/sujan-d-6a980151/ This is my Linked In profile. Let me know if visa sponsor is available with you ? I am interested but I am Indian, if you sponsor me work visa, I will be able to move.

Ah, I found the problem. I was telling beginInserRows I was going to insert at the end and then not inserting at the end. Telling it the right place solved the problem.

@VInay123 said in Qml resuable component best practice: implement logic for text edits in all 3 objects You can put redundant/common logic in a separate js file that is imported in each qml file that it is needed. That should help reduce the logic footprint.

I finally succeed to create this using 2 MultiPointTouchArea but I had to write drag function on touchUpdated event. Here is my code for one drag area: import QtQuick 2.0 Item{ id: joystick width: 100 height: 500 Rectangle{ id: joystickPad height: 50 width: 100 MultiPointTouchArea{ property var offset: null anchors.fill:parent minimumTouchPoints: 1 maximumTouchPoints: 1 function dragMove(point) { if (point) { var position = joystick.mapFromItem(joystickPad, point.x, point.y); /* Change y axis */ if((position.y - offset.y) < 0) { /* Do not go on top of drag area */ joystickPad.y = 0; } else { if((position.y - offset.y) > (joystick.height-joystickPad.height)) { /* Do not go below of drag area */ joystickPad.y = (joystick.height-joystickPad.height); } else { joystickPad.y = position.y - offset.y; } } } } onPressed: { var point = touchPoints[0]; offset = Qt.point(point.x, point.y); } onTouchUpdated: { var point = touchPoints[0]; dragMove(point); } onReleased: { //Reset position joystickPad.x = (joystick.width/2 - joystickPad.width/2) joystickPad.y = (joystick.height/2 - joystickPad.height/2) } } } }

If I create the dots dynamically, are there different ways of doing it? I have never done that before.

@sierdzio Thank you.

@jsulm U are da king! I am dealing with QML for months, and just learning the property variables! That kinda saved my life mate! Thank you very much!

hi @newbisoso said in scalling an object smoothly over time: pulses ones every second that is because you have an interval of 1000ms on the Timer, reducing the interval will make transition smoother but what @J-Hill suggested is probably more suited.

Just genereate 2nd index until it is not same as 1st index: let idx1 = Math.floor(Math.random() * 3); let idx2 = Math.floor(Math.random() * 3); while (idx2 === idx1) idx2 = Math.floor(Math.random() * 3);

I decided to ask this question specifically in a separate post, just in case a JS memory manager expert might not have found the title of this post interesting. Here's the other post: https://forum.qt.io/topic/106655/does-qjsvalue-protect-its-value-from-garbage-collection

Hi, I am interested in your project. My CV: https://drive.google.com/open?id=1uJUxifF2F4JbWM5GL6bw_H1SDdUWjOH09bN9gnSvKqo GitHub: https://github.com/amsantosr

Yes gps is enabled on my phone

Hi @newbisoso , See this, it may help you

Oh, yep, with this explaination is more clear. Thank you a lot ^^

@overlord said in Using QAbstractItemModel in Models that haven't any list.: I am invastigating proper way to use model/view pattern. The model/view pattern in Qt is designed for cases where you have an arbitrary number of rows of data. Your sensors don't quite match this use-case. Therefore, the model/view pattern is not suitable for your sensors. I suggest you choose the right tool for the job: Just use a data structure for your sensors, like @SGaist suggested. If you want to investigate how to use the model/view pattern, try implementing a model with rows. For example, an address book.

Oh, well, it's make sens. Thank you for your answer and your solution. =D

@thanksforthehelp do not import Qml Files directly import "ContactModel.qml" only import folders, if it's different from the current folder If they life inside the same folder, then no import is needed at all. That said this tutorial may be more suited: https://doc.qt.io/qt-5/qml-dynamicview-tutorial.html Usually inside the class documentation you'll find only code excerptions. The link above is a full tutorial and a ready to compile example can be find inside QtCreator itself, if you use the IDE.

@TTIO said in undefined reference to name::staticMetaObject when registering with qmlRegisterType: Yeah, it didn't help The only reason I can think of why that wouldn't help is that moc is not running on your header file. Try removing it from the project and add it back again