已采納回答 / qq_苦瓜_3
有用,我用mosonry 框架寫的約束,在執(zhí)行動畫時更新約束條件即可- (void)movingBtnClicked:(UIButton*)btn{? ? self.isLeft = !self.isLeft;//? ? [self.view setNeedsUpdateConstraints];//? ? [self.view updateConstraintsIfNeeded];//? ? [self.view updateConstraints];? ? [self updateViewConstr...
2015-06-04