Qt 5 QSplitter Animation

Hi, I get some stucks with QSplitter as well. I have two widget in the splitter and I set one of the size of control as 0 to hide it.
Now, I'd like to show the hide one with an expand anime. I use QPropertyAnimation but it doesn't work.

Code:

---

QPropertyAnimation showTrevwAnime(trevwCompileInfo,"geometry");
    QRect startRect=trevwCompileInfo->rect();
    QRect finalRect=startRect;
    finalRect.setWidth(100);
    showTrevwAnime.setStartValue(startRect);
    showTrevwAnime.setEndValue(finalRect);
 
    showTrevwAnime.start();

---

I've know the code above is wrong. But I have no idea how to do this. I have read about QAnimationFramework, can someone help me? Thanks a lot!!!!

see http://qt-project.org/forums/viewthread/29316

(don't place animation on the stack!)