iPhone图片库源代码

Question

HI所有人都可以参考我,iphone图片库源代码？任何链接,示例代码都会有很大帮助.

我试图以缩略图显示大约70到100张图像,并且在选择任何图像时,它应该提供该图像的完整视图,我想要完成,无论iphone的图片库中有什么,我想,必须有任何示例代码可用.建议总是受到赞赏

问候

Answer 1

在didload方法中,调用两个方法来创建滚动视图和缩略图按钮.以相同的顺序保存缩略图图像和壁纸图像数组.

-(void)createScrollView
{
scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 440)];
scrollView.pagingEnabled = YES;
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.showsVerticalScrollIndicator = NO;
scrollView.scrollsToTop = NO;
scrollView.delegate = self;
scrollView.contentSize = CGSizeMake(320 * (([imagesArray count]- 1) / 25 + 1), 440);

scrollView.backgroundColor=[UIColor blackColor];
[self.view addSubview:scrollView];

}

 -(void)createButton{
for (int i = 0; i < [imagesArray count]; i++) 
{

    thumbNailButton = [UIButton buttonWithType:UIButtonTypeCustom];
    thumbNailButton.frame = CGRectMake(6 + 62 * (i % 5) + 320 * (i / 25), 5+65 * ((i / 5) % 5), 56,56);

    img = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 56, 56)];
    [img setImage:[UIImage imageNamed:[imagesArray objectAtIndex:i]]];
    thumbNailButton.tag=i;
    [thumbNailButton addTarget:self action:@selector(imageClicked:) forControlEvents:UIControlEventTouchUpInside];   
    [thumbNailButton addSubview:img];
    [scrollView addSubview:thumbNailButton];

}

}

 -(void)imageClicked:(id)sender{
UIButton* button = (UIButton*)sender;
    AppDelegate *appDelegate=(AppDelegate *)[[UIApplication sharedApplication]delegate];
[appDelegate setimageClickedValue:button.tag];

LargeWallPaperviewController *largeWallPaperViewController=[[LargeWallPaperviewController alloc]initWithNibName:@"LargeWallPaperviewController" bundle:nil];
[self.navigationController pushViewController:largeWallPaperViewController animated:YES];
[largeWallPaperViewController release];
}

在didload方法中的largewallpaperviewcontroller类中

   [imagesArray addObjectsFromArray:[NSArray arrayWithObjects:@"wallf1.jpg",@"wallf2.jpg",@"wallf3.jpg",@"wallf4.jpg",@"wallf5.jpg",@"wallf6.jpg",@"wallf7.jpg",nil]];

scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 440)];
scrollView.pagingEnabled = YES;
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.showsVerticalScrollIndicator = NO;
scrollView.scrollsToTop = NO;
scrollView.delegate = self;
scrollView.contentSize = CGSizeMake(320 * ([imagesArray count] ), 440);
scrollView.backgroundColor = [UIColor blackColor];
[self.view addSubview:scrollView];

for (int i = 0; i < [imagesArray count]; i++) 
{

    wallPaperButton=[UIButton buttonWithType:UIButtonTypeCustom];
    wallPaperButton.tag=i;
    wallPaperButton.frame=CGRectMake((320*i),0, 320, 325);

    UIImageView *img =[ [UIImageView alloc]initWithFrame:CGRectMake(0,0, 320, 325)];

    img.image=[UIImage imageNamed:[imagesArray objectAtIndex:i]];
    img.contentMode=UIViewContentModeScaleAspectFit;            
    [wallPaperButton addSubview:img];
    [img release];


    [wallPaperButton addTarget:self action:@selector(imageSelected:) forControlEvents:UIControlEventTouchUpInside];     [scrollView addSubview:wallPaperButton];
}
appDelegate=(AppDelegate *)[[UIApplication sharedApplication]delegate];
int imageValue=[appDelegate getimageClickedValue];
[scrollView scrollRectToVisible:CGRectMake(320*imageValue, 0, 320 , 440) animated:NO];

我在largewallpaer视图中使用了一个按钮.如果你想要删除它并直接将它添加到图像视图.这个代码对我有用,根据你的要求改变它.它很容易理解.

祝一切顺利.