我希望有人可以帮助我,我不知道还能做些什么。我有一个UIScrollView加载一组44个图像,然后允许用户翻阅它们。我的代码正在运行,然后突然停止了。我不知道我改变了什么,所以任何帮助都会非常感激:
上一个视图是一个UITableView,它传递一个字符串以及所选单元格的名称。以下是ScrollView中的ViewDidLoad方法:
- (void)viewDidLoad
{
[super viewDidLoad];
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] initWithTitle:@"Answer"
style:UIBarButtonItemStyleBordered
target:self
action:@selector(answerPressed:)];
self.navigationItem.rightBarButtonItem = rightButton;
if([questionSetName isEqualToString:@"Limitations"]){
[self limitationsView];
}
}
这是limitsView:
-(void)limitationsView{
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, -44, self.view.frame.size.width, self.view.frame.size.height)];
scroll.pagingEnabled = YES;
NSArray *unsortedArray = [[NSBundle mainBundle] pathsForResourcesOfType:@"png" inDirectory:@"Images/Limitations"];
NSMutableArray *limitationImages = [[NSMutableArray alloc] init];
for (int x = 0; x<[unsortedArray count]; x++) {
NSString *fileName = [[unsortedArray objectAtIndex:x] lastPathComponent];
[limitationImages insertObject:fileName atIndex:x];
}
NSArray *sortedArray = [limitationImages sortedArrayUsingFunction:finderSortWithLocal
context:(__bridge void *)([NSLocale currentLocale])];
for(int i = 0; i< [sortedArray count]; i++){
CGFloat xOrigin = i * self.view.bounds.size.width;
UIImageView *limitationImageView = [[UIImageView alloc] initWithFrame:CGRectMake(xOrigin, 0, self.view.frame.size.width, self.view.frame.size.height)];;
[limitationImageView setImage:[UIImage imageNamed:[sortedArray objectAtIndex:i]]];
limitationImageView.contentMode = UIViewContentModeScaleAspectFit;
[scroll addSubview:limitationImageView];
}
scroll.contentSize = CGSizeMake(self.view.frame.size.width * [sortedArray count], self.view.frame.size.height);
[self.view addSubview:scroll];
}
当我到达LimitationsView方法的末尾时,sortedArray包含所有44个图像和正确的名称,如果我尝试设置scrollview的背景颜色,我可以成功地做到这一点。但我的图像没有加载,我不知道为什么?
答案 0 :(得分:1)
我建议使用
NSLog(@"image:%@",[UIImage imageNamed:[limitationsArray objectAtIndex:i]]);
查看该点的图像是否为空。如果是这种情况,那么您在该阵列中存储的字符串存在问题,即它们与图像的实际名称不同