我正在开发一款iPad应用,可在视图中向用户提问。当他们回答问题时,我希望视图转换到包含下一个问题的另一个视图。为了使它看起来很奇特,我试图添加一个curl过渡到它,但我写的代码不起作用,我不能看到找到问题。它确实显示正确的视图,但没有过渡动画。那是什么?这是我用来转换的方法:
- (void)pageChangedTo:(NSInteger)page {
if ( (page == currentQuestionNumber) || (page > ( [self.allQuestions count] - 1 ) ) || (page < 0) ) {
return;
}
AskQuestionView *view = [self.questionViews objectAtIndex:page];
UIViewAnimationTransition transition;
if (page > currentQuestionNumber) {
transition = UIViewAnimationTransitionCurlUp;
}
else {
transition = UIViewAnimationTransitionCurlDown;
}
if (self.containerView1.superview) {
self.containerView2 = view;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.0];
[UIView setAnimationTransition:transition forView:self.containerView1 cache:YES];
[self.containerView1 removeFromSuperview];
[askQuestionsView addSubview:self.containerView2];
[UIView commitAnimations];
}
else {
self.containerView1 = view;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.0];
[UIView setAnimationTransition:transition forView:self.containerView2 cache:YES];
[self.containerView2 removeFromSuperview];
[askQuestionsView addSubview:self.containerView1];
[UIView commitAnimations];
}
currentQuestionNumber = page;
}
谁能告诉我为什么这不起作用?我非常感谢!
答案 0 :(得分:0)
为View:_ _self.containerView2的容器设置动画过渡:不是被移除的那个,而是被移除的那个。