我才刚接触 Xcode 一周，试图学习一些东西，所以我可以为一个项目做出贡献。
到目前为止，我一直在研究教程并做了一些事情:) 但我还远未结束。我希望有人能理解我会问什么..
我正在制作一个从服务器获取数据的应用程序，数据将包括缩略图、图像和文本。现在我有一个集合视图控制器，有一个有 3 个按钮的单元格（我发现它们更容易放置在集合视图单元格中），按钮的背景是一个特定的图像（现在是硬编码的），它需要你一个视图控制器，其中显示了该项目的所有内容，没什么特别的:)
但是布局（设计）对我来说很难实现。基本上（根据我的理解）我需要有 4 个集合视图单元格，具有不同的定位按钮。现在我有一个集合视图控制器，一个集合视图，包含一个单元格。
#import "CollectionViewController.h"
#import "CollectionViewCell.h"
#import "ImageDetailsViewController.h"
#import "StoryItem.h"
@interface CollectionViewController ()
{
NSArray *arrBigLeft;
NSArray *arrSmallTopR;
NSArray *arrSmallBotR;
}
@end
@implementation CollectionViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
arrBigLeft = [[NSArray alloc]initWithObjects:@"imageicon0@2x.jpg", @"imageicon1@2x.jpg", @"imageicon2@2x.jpg", @"imageicon3@2x.jpg", nil];
arrSmallTopR = [[NSArray alloc]initWithObjects:@"imageicon4@2x.jpg", @"imageicon5@2x.jpg", @"imageicon6@2x.jpg", @"imageicon7@2x.jpg", nil];
arrSmallBotR = [[NSArray alloc]initWithObjects:@"imageicon8@2x.jpg", @"imageicon9@2x.jpg", @"imageicon0@2x.jpg", @"imageicon1@2x.jpg", nil];
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if([segue.identifier isEqualToString:@"photoDetail1"]){
CollectionViewCell *cell = (CollectionViewCell *)sender;
NSIndexPath *indexPath = [self.collectionView indexPathForCell:cell];
ImageDetailsViewController *idvc = (ImageDetailsViewController *)[segue destinationViewController];
idvc.img = [UIImage imageNamed:[arrBigLeft objectAtIndex:indexPath.item]];
}
if([segue.identifier isEqualToString:@"photoDetail2"]){
CollectionViewCell *cell = (CollectionViewCell *)sender;
NSIndexPath *indexPath = [self.collectionView indexPathForCell:cell];
ImageDetailsViewController *idvc = (ImageDetailsViewController *)[segue destinationViewController];
idvc.img = [UIImage imageNamed:[arrSmallTopR objectAtIndex:indexPath.item]];
}
if([segue.identifier isEqualToString:@"photoDetail3"]){
CollectionViewCell *cell = (CollectionViewCell *)sender;
NSIndexPath *indexPath = [self.collectionView indexPathForCell:cell];
ImageDetailsViewController *idvc = (ImageDetailsViewController *)[segue destinationViewController];
idvc.img = [UIImage imageNamed:[arrSmallBotR objectAtIndex:indexPath.item]];
}
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
return [arrBigLeft count];
}
// The cell that is returned must be retrieved from a call to -dequeueReusableCellWithReuseIdentifier:forIndexPath:
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
static NSString *identifier=@"Cell";
CollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];
[[cell button1]setBackgroundImage:[UIImage imageNamed:[arrBigLeft objectAtIndex:indexPath.item]] forState:UIControlStateNormal];
[[cell button2]setBackgroundImage:[UIImage imageNamed:[arrSmallTopR objectAtIndex:indexPath.item]] forState:UIControlStateNormal];
[[cell button3]setBackgroundImage:[UIImage imageNamed:[arrSmallBotR objectAtIndex:indexPath.item]] forState:UIControlStateNormal];
return cell;
}
-(IBAction)returned:(UIStoryboardSegue *)segue {
}
@end
这还不能像我想要的那样工作，但至少我得到了动态创建的单元格。我希望能够返回具有不同项目（图像）数组的多个单元格，并且它们都应该同时加载
在这里您只能看到两个单元格，但我添加的第二个单元格只是为了可视化我要解释的内容（4 个不同的单元格）当我运行应用程序时，第一个单元格（由于图像数量）重复 4 次，如果我正要在第二个单元格中添加相同的图像，我希望在屏幕截图中看到它们，并继续以等于图像数量（数组长度）的顺序重复
如果您需要更多代码，请告诉我.. 谢谢！