弹性变化放大图片-创新互联
// // ProfileViewController.m // TwProfile // // Created by hunk on 4/30/13. // Copyright (c) 2013 mx.com.hunk. All rights reserved. // #import "ProfileViewController.h" static CGFloat ImageHeight = 150.0; static CGFloat ImageWidth = 320.0; @interface ProfileViewController () @end @implementation ProfileViewController - (void)updateImg { CGFloat yOffset = _tableView.contentOffset.y; if (yOffset < 0) { CGFloat factor = ((ABS(yOffset)+ImageHeight)*ImageWidth)/ImageHeight; CGRect f = CGRectMake(-(factor-ImageWidth)/2, 0, factor, ImageHeight+ABS(yOffset)); self.imgProfile.frame = f; } else { CGRect f = self.imgProfile.frame; f.origin.y = -yOffset; self.imgProfile.frame = f; } } #pragma mark - Table View Delegate - (void)scrollViewDidScroll:(UIScrollView *)scrollView { [self updateImg]; } #pragma mark - Table View Datasource - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 2; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { if (section == 0) return 1; else return 12; } - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { if (indexPath.section == 0) return ImageHeight; else return 44.0; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSString *cellReuseIdentifier = @"SectionTwoCell"; NSString *windowReuseIdentifier = @"SectionOneCell"; UITableViewCell *cell = nil; if (indexPath.section == 0) { cell = [tableView dequeueReusableCellWithIdentifier:windowReuseIdentifier]; if (!cell) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:windowReuseIdentifier]; } } else { cell = [tableView dequeueReusableCellWithIdentifier:cellReuseIdentifier]; if (!cell) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellReuseIdentifier]; cell.contentView.backgroundColor = [UIColor lightGrayColor]; } cell.textLabel.text = [ NSString stringWithFormat:@"cell %i",indexPath.row]; } cell.selectionStyle = UITableViewCellSelectionStyleNone; return cell; } - (id)init { self = [super init]; if (self) { // Custom initialization UIImage *p_w_picpath = [UIImage p_w_picpathNamed:@"bg.png"]; self.imgProfile = [[UIImageView alloc] initWithImage:p_w_picpath]; self.imgProfile.frame = CGRectMake(0, 0, ImageWidth, ImageHeight); self.tableView = [[UITableView alloc] init]; self.tableView.dataSource = self; self.tableView.delegate = self; self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone; self.tableView.backgroundColor = [UIColor clearColor]; [self.view addSubview:self.imgProfile]; [self.view addSubview:self.tableView]; self.title = @"with UITableView"; } return self; } #pragma mark - View lifecycle - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; CGRect bounds = self.view.bounds; _tableView.frame = bounds; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end创新互联主要从事成都网站设计、网站建设、网页设计、企业做网站、公司建网站等业务。立足成都服务若羌,10余年网站建设经验,价格优惠、服务专业,欢迎来电咨询建站服务:18980820575
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新闻标题:弹性变化放大图片-创新互联
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