QVariantList Repeater

Tyber

Hello,
I try to pass a QJsonArray from C++ to QML via QVariantList and mark positions on a map. For these purpose I developed this code in QML:

Map {
      id: id_quizMap
      plugin: mapPlugin

      Repeater {
          model: quizfiles.getLocations

          MapQuickItem {
              id: id_marker
              anchorPoint.x: id_positionImage.width/2
              anchorPoint.y: id_positionImage.height
              coordinate: QtPositioning.coordinate(this.value("Lat"), this.value("Long"))

              sourceItem: Image {
                  id: id_quizImage
                  width: sourceSize.width*2
                  height: sourceSize.height*2
                  source: "images/map-question-marker.svg"
              }
          }
      }
  }

if I output the array returned of quizFiles.getLocations i get this output:

D libXy.so: QVariant(QVariantMap, QMap(("GameFolder", QVariant(QString, "Titel1"))("GameType", QVariant(QString, "Quiz"))("Group", QVariant(double, 1))("Lat", QVariant(QString, "49.452943614253059"))("LocationName", QVariant(QString, "THN"))("Long", QVariant(QString, "11.097496110845555"))("Status", QVariant(QString, "Open"))))
D libXy.so: QVariant(QVariantMap, QMap(("GameFolder", QVariant(QString, "story1"))("GameType", QVariant(QString, "Story"))("Group", QVariant(double, 1))("Lat", QVariant(QString, "49.452384329402705"))("LocationName", QVariant(QString, "see"))("Long", QVariant(QString, "11.100266172564261"))("Status", QVariant(QString, "Open"))))
D libXy.so: QVariant(QVariantMap, QMap(("GameFolder", QVariant(QString, "sdvgs"))("GameType", QVariant(QString, "Quiz"))("Group", QVariant(double, 2))("Lat", QVariant(QString, "49.451013526379832"))("LocationName", QVariant(QString, "bridge"))("Long", QVariant(QString, "11.097201596953937"))("Status", QVariant(QString, "Open"))))
D libXy.so: QVariant(QVariantMap, QMap(("GameFolder", QVariant(QString, "dfbsdg"))("GameType", QVariant(QString, "Quiz"))("Group", QVariant(double, 2))("Lat", QVariant(QString, "49.452431345885934"))("LocationName", QVariant(QString, "mensa"))("Long", QVariant(QString, "11.094536577839790"))("Status", QVariant(QString, "Open"))))
D libXy.so: Locations:  QVariant(QVariantMap, QMap(("GameFolder", QVariant(QString, "fbgfnfghn"))("GameType", QVariant(QString, "Quiz"))("Group", QVariant(double, 3))("Lat", QVariant(QString, "49.457294201293251"))("LocationName", QVariant(QString, "vcasdcvasj"))("Long", QVariant(QString, "11.058210966587012"))("Status", QVariant(QString, "Open"))))
D libXy.so: Locations:  QVariant(QVariantMap, QMap(("GameFolder", QVariant(QString, "Ziel"))("GameType", QVariant(QString, ""))("Group", QVariant(double, 4))("Lat", QVariant(QString, "49.455508850240328"))("LocationName", QVariant(QString, "Ziel"))("Long", QVariant(QString, "11.097349760532325"))("Status", QVariant(QString, "Open"))))

But there is no marker on the map and I dont know, whats my fault.

GrecKo

Linking you one of my answer on SO https://stackoverflow.com/a/45550835/2788674

TL;DR: use MapItemView instead of Repeater in a Map.

Tyber

Thanks for your answer GrecKo, know it works with this code:

Map {
      id: id_quizMap
      plugin: mapPlugin

      MapItemView {
          id: id_mapViewQuizMarker
          model: quizfiles.getLocations
          delegate: id_quizDelegate
      }

      Component {
          id: id_quizDelegate

          MapQuickItem {
              id: id_marker
              anchorPoint.x: id_positionImage.width/2
              anchorPoint.y: id_positionImage.height
              coordinate: QtPositioning.coordinate(id_mapViewQuizMarker.model[index].Lat, id_mapViewQuizMarker.model[index].Long)

              sourceItem: Image {
                  id: id_quizImage
                  width: sourceSize.width*2
                  height: sourceSize.height*2
                  source: "images/map-question-marker.svg"
              }
          }
      }
  }