QScreenCapture content picker dialog blocks UI thread

When using QScreenCapture::start() to initiate a capture-session, our Android implementation will open up a system-dialog where the end-user has to select what content to capture. Commonly this means selecting either the entire display or a specific application.

The problem is that the Qt UI thread is blocked while this dialog is open. For instance, we cannot run Timers in QML that do periodical work.

Linux+Wayland has a similar setup with the content-picking dialog, but on Linux+Wayland this does not block the UI thread.

What do you expect to happen:
I expect the platforms to behave similarly. Ideally this means I will be able to keep the UI thread going while performing content-picking on Android.

This behavior has been observed on the following devices:

• Motorola Razr 40 Ultra, running Android 15
• Samsung Galaxy Tab A8, running Android 14