[Bas]

hi,

 

I updated to the latest version of felgo, and now my app crashes only in Android!

In the app i use QZXing the latest version (to scan a QR code) and somehow the android version crashes,

it get’s stuck on processing the first frame, and keeps on processing.
I test on a Samsung S9 device with the latest updates.

Can someone help me out please, i was trying to get the app in the appstore

 

thanx,

Bas

 

[Bas]

    // item for scanner, allows to show / remove camera live capturing as needed
    Item {
        anchors.fill: parent

        // initialize capture zone size
        Component.onCompleted: {
            captureZone.width = Qt.binding(function() { return videoOutput.contentRect.width / 2 })
            captureZone.height = Qt.binding(function() { return videoOutput.contentRect.height / 2 })
        }

        // Camera
        Camera {
            id:camera
            focus {
                focusMode: CameraFocus.FocusContinuous
                focusPointMode: CameraFocus.FocusPointAuto
            }
            onCameraStateChanged: {
                console.log("camera state:", camera.cameraState)
            }
        }

        // Live Video Output

        VideoOutput {
            id: videoOutput
            source: camera
            anchors.fill: parent
            autoOrientation: true
            fillMode: VideoOutput.PreserveAspectCrop
            filters: [ zxingFilter ]
            MouseArea {
                anchors.fill: parent
                onClicked: {
                    camera.focus.customFocusPoint = Qt.point(mouse.x / width,  mouse.y / height);
                    camera.focus.focusMode = CameraFocus.FocusMacro;
                    camera.focus.focusPointMode = CameraFocus.FocusPointCustom;
                }
            }
        }

        // Barcode Scanner Video Filter
        QZXingFilter {
            id: zxingFilter
            active: false
            // setup capture area
            captureRect: {
                videoOutput.contentRect;
                videoOutput.sourceRect;
                return videoOutput.mapRectToSource(videoOutput.mapNormalizedRectToItem(Qt.rect(0.25, 0.25, 0.5, 0.5)));
            }
            // set up decoder
            decoder {
                enabledDecoders: QZXing.DecoderFormat_QR_CODE
                onTagFound: {
                    console.log(tag + " | " + decoder.foundedFormat() + " | " + decoder.charSet());
                        zxingFilter.active = false
                }
                tryHarder: false
            }
        } //-- filter

    } // QR Scanner Item

 

[Bas]

i used the code from the QtWS2017 pp, but i did not tried the QZXing version used in that felgo app.

i did use the latest version of the QZXing project

[Bas]

ok i managed to get what causes the problem, std::throw crashes the android app.

i am trying to get rid of all the exceptions and try to debug further.

[AlexFelgo Team]

Hi Bas,

exactly, the guys from QZXing are using C++ exceptions to control their program flow, which causes issues with the current SSL version used with Qt 5.12.3.

There is also a bugreport related to the SSL version used: https://bugreports.qt.io/browse/QTBUG-71391

We are currently looking for a fix as well. It would be great if you can keep us updated on your findings here as well 🙂

Cheers,
Alex

[Bas]

hi Alex,

will do of course!

greetz,

Bas

[Bas]

could it be possible to include different .pri projects for different build kits?

so let’s say i want for ios and macx include(project-a.pri)

and for android include(project-b.pri)

 

I tried it in my pro file but it includes all pri projects in the main project.

 

Any suggestions?

 

thanx,

Bas

[AlexFelgo Team]

Hi Bas,

you should be able to use e.g. “android:” modifiers like done in all pro files of our examples, to also add/skip includes for certain platforms.

Cheers,
Alex

[Bas]

ok thanx, i was not shure it would work because QT editor includes both projects.