On Wed, Oct 9, 2013 at 1:30 PM, Victor Palau <victor.pa...@canonical.com> wrote: > Hi, > > I was playing with building a C++ component that have a slot. Have a UI in > QML that has a button. The button I have connected the button onclicked > signal with the C++ component slot, so when I clicked the button, the C++ > object does its magic. This all works, but the UI freezes as soon as I do > this. > > I thought that signals and slots were async so that shouldnt happen. Any > thoughts?
What is the C++ code doing? If the C++ code is cpu-intensive, then the UI will get blocked, and you'll need to run it in a thread. Here's how to show a busy indicator while the thread runs, and how to hide it when it's done: http://stackoverflow.com/questions/12071021/qml-and-qthread-multithreading cheers, -- alecu -- Mailing list: https://launchpad.net/~ubuntu-phone Post to : ubuntu-phone@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-phone More help : https://help.launchpad.net/ListHelp
