如何以编程方式显示图像水平 UIscrollView [英] how to display images horizontal UIscrollView Programmatically
问题描述
我确实获取了 Url 的图像.然后在 SCrollView 上显示.我的代码是这样的
I did Get images for Url.and then display on SCrollView.My code like this
NSMutableArray *al=[NSJSONSerialization JSONObjectWithData:webData options:0 error:nil];
for (NSDictionary *diction in al)
{
NSString *geting =[diction valueForKey:@"dealimage"];
NSLog(@"dealimage is %@",geting);
NSData *getdata=[[NSData alloc]initWithData:[NSData dataFromBase64String:geting]];
NSLog(@"good day %@",getdata);
dataimages=[UIImage imageWithData:getdata];
NSLog(@"dataimages %@",dataimages);
[imagesarray addObject:dataimages];
}
scrollView=[[UIScrollView alloc]init];
scrollView.delegate = self;
scrollView.scrollEnabled = YES;
int scrollWidth = 100;
scrollView.contentSize = CGSizeMake(scrollWidth,100);
scrollView.frame=CGRectMake(0, 0, 320, 100);
scrollView.backgroundColor=[UIColor yellowColor];
[self.view addSubview:scrollView];
int xOffset = 0;
imageView.image = [UIImage imageNamed:[imagesName objectAtIndex:0]];
for(int index=0; index < [imagesName count]; index++)
{
UIImageView *img = [[UIImageView alloc] init];
img.bounds = CGRectMake(10, 10, 50, 50);
img.frame = CGRectMake(5+xOffset, 0, 160, 110);
NSLog(@"image: %@",[imagesName objectAtIndex:index]);
img.image = [UIImage imageNamed:[imagesName objectAtIndex:index]];
[images insertObject:img atIndex:index];
scrollView.contentSize = CGSizeMake(scrollWidth+xOffset,110);
[scrollView addSubview:[images objectAtIndex:index]];
xOffset += 170;
}
我的问题是 ScrollView 是显示但图像没有添加所以请告诉我我的代码有什么问题
my Problem is ScrollView is Display but Images are not add So please tell me what wrong in my code
现在我需要这样
我知道如何获取 Url 的图像.现在我需要显示图像 Horizontal ScrollView 所以请告诉我有关图像的任何想法.
I know how to get images for Url.now i need display images Horizontal ScrollView So Please give me any idea about images .
推荐答案
你的编码没问题,但是你分配了 [scrollView addSubview:[images objectAtIndex:index]];
的值,这不是很好,我根据你的结果修改你的代码想要
your coding is Fine, but you are assign the value of [scrollView addSubview:[images objectAtIndex:index]];
, this is not the fine one, I modify your code, as per your result Want
UIScrollView *scrollVie=[[UIScrollView alloc]init];
scrollVie.delegate = self;
scrollVie.scrollEnabled = YES;
int scrollWidth = 100;
//scrollVie.contentSize = CGSizeMake(scrollWidth,100);
scrollVie.frame=CGRectMake(0, 51, self.view.frame.size.width, 100);
scrollVie.backgroundColor=[UIColor redColor];
int xOffset = 0;
for(int index=0; index < [imagesarray count]; index++)
{
UIImageView *img = [[UIImageView alloc] initWithFrame:CGRectMake(xOffset,10,160, 110)];
img.image = (UIImage*) [imagesarray objectAtIndex:index];
[scrollVie addSubview:img];
xOffset+=100;
}
[self.view addSubview:scrollVie];
scrollVie.contentSize = CGSizeMake(scrollWidth+xOffset,110);
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