Question

如何为从服务器检索到的多个图像添加滑动手势。我从server.how得到str = @“but1.jpg，but2.jpg”，用swipe显示这些图像存储在字符串中。对于从服务器显示的单个图像我从服务器获得基于键“image_names”的响应，我将它存储在string.my代码如下

url=@"http:..........";
str=[dict1 valueForKey:@"image_names"];
if (str!=nil) {
strImg=[url stringByAppendingString:str];
dispatch_async(dispatch_get_global_queue(0,0), ^{
    NSData *data = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:strImg]];
    if ( data == nil )
        return;
    dispatch_async(dispatch_get_main_queue(), ^{

        UIImage *img=[UIImage imageWithData: data];
        imgView.image=img;
    });


});

}

Answer 1

我不知道你究竟是什么问题，但你可以在任何图像上添加滑动手势，如下面的代码行。

UISwipeGestureRecognizer *swipeLeftGesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeLeftGesture:)];
UISwipeGestureRecognizer *swipeRightGesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeRightGesture:)];

 [swipeLeftGesture setDirection:UISwipeGestureRecognizerDirectionLeft];
 [swipeRightGesture setDirection:UISwipeGestureRecognizerDirectionRight];

// Adding the both the swipe gesture to UIImageview
[imageView addGestureRecognizer:swipeLeftGesture];
[imageView addGestureRecognizer:swipeRightGesture];

如何检索从服务器获取的多个图像，并使用滑动在UIImageView中显示它们

1 个答案: