Blue drop on android with QComboBox using

[Russian Happy Seal]

Good day!

I have some trouble with using QComboBox on android device: sometimes after touching combobox blue drop is appeared on screen in strange position, like on the screenshot:

What's wrong with it?

Qt Creator 4.9.1 (based on Qt 5.12.3).

Compilator Android for arm64-v8a (Clang Qt 5.12.3 for Android ARM64-v8a) or Android for armeabi-v7a (Clang Qt 5.12.3 for Android ARMv7) (both have same result)

Phone Huawei Mate 10 Pro on Android 9.0

[jsulm]

@Russian-Happy-Seal said in Blue drop on android with QComboBox using:

What's wrong with it?

I don't know - you did not explain much. You did not provide any code and you did not explain how you actually show this blue drop.

[Russian Happy Seal]

@jsulm Cause where is no code.

I created new QtWidget project with one MainWindow, added on it QComboBox with some items and build it.

After that I started app on my android device and clicked several times on combobox and it's items. Some of this clicks generated this blue drop, like on the screen.

[Russian Happy Seal]

A little update: it's happened only after click on QComboBox's item.

On google nexus tablet (Android 6.0.1) the same problem.

[PentaPanda]

Here is my Solve:

class AndroidItemModel : public QStandardItemModel {
Q_OBJECT
public:
AndroidItemModel(QObject *parent = nullptr): QStandardItemModel(parent) {}
Qt::ItemFlags flags(const QModelIndex &index) const override {
if (!index.isValid()) {return Qt::NoItemFlags;}
return Qt::ItemIsSelectable | Qt::ItemIsEnabled;
}
};

QComboBox * cb = new QComboBox();
cb ->setModel(new AndroidItemModel());