如何以编程方式在uicollectionview中插入图像？ [英] How to insert images in uicollectionview programmatically?

问题描述

我对Objective-C很新，所以希望这一切都有道理。我在第一个答案中提供了代码以编程方式创建UICollectionView 。它工作正常。现在我想在单元格中添加一些可以通过鼠标点击扩展的图片。我搜索了许多教程，但都使用了nib文件或故事板文件。我怎么能以编程方式完成此任务？

I'm pretty new to Objective-C so hopefully this all makes sense..I ran code provided in first answer Creating a UICollectionView programmatically..It is working fine .Now i want to add some pictures in cell that can expanded by mouse click .I searched many tutorial but all using nib files or storyboard files .How i can accomplish this task programmatically ?

任何帮助将不胜感激。在此先感谢。

Any help would be greatly appreciated. Thanks in advance.

推荐答案

初学者阅读tutroial并首先了解以下链接和苹果文档

Beginner read tutroial and understand first everyting in below link and apple doc

ios-programming-uicollectionview-tutorial-with-sample-代码

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UICollectionView_class/Reference/Reference.html

像这种方法改变你的背景颜色

change this your blackground color like this approach

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell=[collectionView dequeueReusableCellWithReuseIdentifier:@"cellIdentifier" forIndexPath:indexPath];
    UIImageView *recipeImageView = (UIImageView *)[cell viewWithTag:100];
    recipeImageView.image = [UIImage imageNamed:[recipeImages objectAtIndex:indexPath.row]];
    cell.backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"photo-frame.png"]];
    [self.view addSubview:recipeImageView];
    cell.backgroundColor=[UIColor colorWithPatternImage:[UIImage imageNamed:[recipeImages objectAtIndex:indexPath.row]]];

    return cell;
}

输出：

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