导航栏透明度改变

来源：互联网发布：阿里云os3.2 系统优化编辑：程序博客网时间：2024/05/01 20:46

- (void)scrollViewDidScroll:(UIScrollView *)scrollView{

if (scrollView !=self.MyCollectionDetailsTable) {

return;

}

UIColor *color=kUIColorFromRGBWithAlapha(232,91, 85, 1);

UIColor *color1=[UIColorwhiteColor];

CGFloat offset=scrollView.contentOffset.y;

if (offset<0) {

_RedFocusBtn.layer.borderColor=kUIColorFromRGBWithAlapha(147,147, 147, 1).CGColor;

[_RedFocusBtnsetTitleColor:kUIColorFromRGBWithAlapha(147,147, 147, 1)forState:UIControlStateNormal];

[_BackBtnsetImage:[UIImageimageNamed:@"heifanhui"]forState:UIControlStateNormal];

self.RedView.backgroundColor = [colorcolorWithAlphaComponent:0];

self.RedTitle.textColor= [color1colorWithAlphaComponent:0];

}else {

CGFloat alpha=1-((65*kMainNewScreenScale-offset)/65*kMainNewScreenScale);

self.RedView.backgroundColor=[colorcolorWithAlphaComponent:alpha];

self.RedTitle.textColor=[color1colorWithAlphaComponent:alpha];

_RedFocusBtn.layer.borderColor=[UIColorwhiteColor].CGColor;

[_RedFocusBtnsetTitleColor:[UIColorwhiteColor] forState:UIControlStateNormal];

[_BackBtnsetImage:[UIImageimageNamed:@"denglufanhui"]forState:UIControlStateNormal];

}

0 0