Question

尝试使用适用于iPhone SDK的OpenFlow API。我需要openflow来从（图像）链接加载图片。

这是它始终与本地图像一起使用的方式：

    loadImagesOperationQueue = [[NSOperationQueue alloc] init];


    NSString *imageName;
    for (int i=0; i < 10; i++) {
        imageName = [[NSString alloc] initWithFormat:@"cover_%d.jpg", i];
        [(AFOpenFlowView *)self.view setImage:[UIImage imageNamed:imageName] forIndex:i];
        [imageName release];
        NSLog(@"%d is the index",i);

    }
    [(AFOpenFlowView *)self.view setNumberOfImages:10];

我试过这个：

    - (void)openFlowView:(AFOpenFlowView *)openFlowView requestImageForIndex:(int)index {

    NSString *photoUrl = [[oldEntries objectAtIndex: 0] objectForKey: @"still"];
    NSURL *photomake = [NSURL URLWithString:photoUrl];
    NSLog(@"theConnection: %@",photoUrl);
    NSLog(@"theConnection: %@",photomake);

    AFGetImageOperation *getImageOperation = [AFGetImageOperation alloc];
    // We're getting our images from the Flickr API.
    getImageOperation.imageURL = photomake;

    [loadImagesOperationQueue addOperation:getImageOperation];

    [(AFOpenFlowView *)self.view setNumberOfImages:1];
    [getImageOperation release];
}

但它不起作用。任何人都可以帮助我吗？

Answer 1

不知道什么“不起作用”很难说，请澄清并提供您正在创建的实际网址。

唯一可疑的是这一行：

AFGetImageOperation *getImageOperation = [AFGetImageOperation alloc];

应该是：

AFGetImageOperation *getImageOperation = [[AFGetImageOperation alloc] init];

Answer 2

使用起来容易得多：

NSURL *imageUrl = [[NSURL alloc] initWithString:[@"path/to/the/file.jpg"];
NSData *imageData = [NSData dataWithContentsOfURL:imageUrl];
UIImage *image = [UIImage imageWithData:imageData];

将所有图像放入数组中然后你称之为第一个功能

for (int i=0; i < 10; i++) {
    imageName = [[NSString alloc] initWithFormat:@"cover_%d.jpg", i];
    [(AFOpenFlowView *)self.view setImage:**image** forIndex:i];
    [imageName release];
    NSLog(@"%d is the index",i);

}
[(AFOpenFlowView *)self.view setNumberOfImages:10];

带有XML对象的OpenFlow

2 个答案: