微博个人中心效果
//微博个人中心
- (void)configTableView
{
//image 高度375;
testTableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, kScreenWith, kScreenHeight)];
testTableView.delegate = self;
testTableView.dataSource = self;
[self.view addSubview:testTableView];
tableViewHeader = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, testTableView.frame.size.width, 250)];
tableViewHeader.image = [UIImage imageNamed:@"head2"];
tableViewHeader.contentMode = UIViewContentModeScaleToFill;
testTableView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);
[testTableView addSubview:tableViewHeader];
headerv = [[UIView alloc] initWithFrame:CGRectMake(0, 0, testTableView.frame.size.width, 250)];
headerv.backgroundColor = [UIColor clearColor];
la = [[UILabel alloc] initWithFrame:CGRectMake(0, headerv.frame.size.height/2.0 - 20, testTableView.frame.size.width, 40)];
la.text = @"测试账号";
la.textAlignment = NSTextAlignmentCenter;
[headerv addSubview:la];
testTableView.tableHeaderView = headerv;
}
#pragma mark - scale
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
CGFloat imagH = 375 - 250;
CGFloat yOffset = scrollView.contentOffset.y;
NSLog(@"yoffset===%f",yOffset);
if (yOffset < 0 ) {
UIImageView *header = tableViewHeader;
CGRect rect = header.frame;
rect.origin.y = fabs(yOffset) > imagH ? -imagH:yOffset;
rect.size.height = fabs(yOffset) > imagH?375:(250 - yOffset);
rect.origin.x = 0;
rect.size.width = scrollView.frame.size.width; //+ fabs(xOffset) * 2;
header.frame = rect;
// [headerv setFrame:CGRectMake(0, 0, testTableView.frame.size.width, 250 - yOffset*0)];
// [la setFrame:CGRectMake(0, headerv.frame.size.height - 40, testTableView.frame.size.width, 40)];
}
// else if(yOffset < 0 && fabs(yOffset) >= 100){
//
//
// }
else {
[tableViewHeader setFrame:CGRectMake(0, 0, testTableView.frame.size.width, 250)];
}
CGFloat alpha = (yOffset + 40) / 40;
if(self.edgesForExtendedLayout == UIRectEdgeTop || self.edgesForExtendedLayout == UIRectEdgeAll){
UIImage *colorImg = [self imageWithColor:[UIColor orangeColor]];
UIImage *barBgImg = [self imageByApplyingAlpha:alpha image:colorImg];
[self.navigationController.navigationBar setBackgroundImage:barBgImg forBarMetrics:UIBarMetricsDefault];
}
}