Ios 如何实现谷歌&x2B;类似导航标题动画的公共配置文件页面
我曾经有过这样一个场景,我想要google+个人资料页面,比如标题动画,其中没有导航栏,但当我们上下滚动时,导航栏和状态栏会以动画的形式显示。有人能帮我解决这个问题吗。Easy peasy:Ios 如何实现谷歌&x2B;类似导航标题动画的公共配置文件页面,ios,uinavigationbar,google-plus,Ios,Uinavigationbar,Google Plus,我曾经有过这样一个场景,我想要google+个人资料页面,比如标题动画,其中没有导航栏,但当我们上下滚动时,导航栏和状态栏会以动画的形式显示。有人能帮我解决这个问题吗。Easy peasy: float lastOffset; -(void)scrollViewDidScroll:(UIScrollView *)scrollView { float offset = scrollView.contentOffset.y; if ( offset >
float lastOffset;
-(void)scrollViewDidScroll:(UIScrollView *)scrollView
{
float offset = scrollView.contentOffset.y;
if ( offset > lastOffset ) {
[self hideNavigationBar];
} else {
[self showNavigationBar];
}
}
- (void)hideNavigationBar
{
CALayer *layer = self.viewParent.navigationController.navigationBar.layer;
CGPoint navBarDefaultPosition = CGPointMake((int)self.view.frame.size.width/2.0f,42);
if (layer.position.x == navBarDefaultPosition.x &&
layer.position.y == navBarDefaultPosition.y && self.data.count > 0) {
[UIView animateWithDuration:0.25 animations:^{
layer.position = CGPointMake(layer.position.x,
-self.navigationController.navigationBar.frame.
size.height);
}];
}
}
-(void)showNavigationBar
{
CALayer *layer = self.viewParent.navigationController.navigationBar.layer;
CGPoint navBarDefaultPosition = CGPointMake((int)self.view.frame.size.width/2.0f,42);
if ( layer.position.y != navBarDefaultPosition.x ) {
[UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionBeginFromCurrentState animations:^{
layer.position = CGPointMake(self.view.frame.size.width/2,42);
} completion:^(BOOL finished) {
}];
}
}
Hello@Martin你能在git上添加一个演示项目并提供链接给我吗?这实际上并没有将节头向下推,但导航栏在表视图的节头上。谁能给我一些更好的提示或源代码,这将是非常有帮助的。