搜索框,导航栏随页面滑动渐变
Posted OIMM
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简单的变化
#pragma mark - scrollViewDelegate - (void)scrollViewDidScroll:(UIScrollView *)scrollView { CGFloat alpha = scrollView.contentOffset.y / 100; if (alpha >= 1) { alpha = 1; }else if (alpha <= 0) { alpha = 0; } self.naviView.backgroundColor = [UIcolor colorWithAlphaComponent:alpha]; }
//一些更多的变化
- (void)scrollViewDidScroll:(UIScrollView *)scrollView{ if (scrollView == self.myTableView) { if (scrollView.contentOffset.y<(200-_homeView.mj_h)){ float alpha = scrollView.contentOffset.y/(200-_homeView.mj_h); _homeView.backgroundColor = [[UIColor whiteColor]colorWithAlphaComponent:alpha]; if (alpha>0.5) { if(!CGColorEqualToColor(self.titleView.backgroundColor.CGColor, [UIColor colorHexString:@"#efefef"].CGColor)){ [[UIApplication sharedApplication]setStatusBarStyle:UIStatusBarStyleDefault animated:NO]; self.telButton.buttonImageView.image = [UIImage imageNamed:@"sy_kf_hei_icon"]; self.telButton.titleLabel.textColor = [UIColor colorHexString:@"#3d3d3d"]; self.titleView.backgroundColor = [UIColor colorHexString:@"#efefef"]; self.messageLabel.textColor = [UIColor colorHexString:@"#3d3d3d"]; [self.messageButtonItem setImage:[UIImage imageNamed:@"zjwd_db_ssk_xx_icon"] forState:UIControlStateNormal]; } } else{ if(!CGColorEqualToColor(self.titleView.backgroundColor.CGColor, [UIColor whiteColor].CGColor)){ [[UIApplication sharedApplication]setStatusBarStyle:UIStatusBarStyleLightContent animated:NO]; self.telButton.buttonImageView.image = [UIImage imageNamed:@"sy_kf_bai_icon"]; self.telButton.titleLabel.textColor = [UIColor colorHexString:@"#ffffff"]; self.titleView.backgroundColor = [UIColor whiteColor]; self.messageLabel.textColor = [UIColor colorHexString:@"#ffffff"]; [self.messageButtonItem setImage:[UIImage imageNamed:@"sy_xx_bai_icon"] forState:UIControlStateNormal]; } } } else { _homeView.backgroundColor = [[UIColor whiteColor]colorWithAlphaComponent:1.0f]; if(!CGColorEqualToColor(self.titleView.backgroundColor.CGColor, [UIColor colorHexString:@"#efefef"].CGColor)){ [[UIApplication sharedApplication]setStatusBarStyle:UIStatusBarStyleDefault animated:NO]; self.telButton.buttonImageView.image = [UIImage imageNamed:@"sy_kf_hei_icon"]; self.telButton.titleLabel.textColor = [UIColor colorHexString:@"#3d3d3d"]; self.titleView.backgroundColor = [UIColor colorHexString:@"#efefef"]; self.messageLabel.textColor = [UIColor colorHexString:@"#3d3d3d"]; [self.messageButtonItem setImage:[UIImage imageNamed:@"zjwd_db_ssk_xx_icon"] forState:UIControlStateNormal]; } } } }
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