ios - UIPickerView 在 iOS 7 + 版本中不显示图像

Question

我正在尝试在 iOS 7+ 版本中运行我的应用程序，其中遇到了一个问题

我有 UIPickerview 为低于 iOS 7 的版本正确显示图像，但在 iOS 7+ 中，整个选择器视图都搞砸了。这就是我想要实现的目标

1. 我在 Viewload 中有一系列 imageViews

2. 尝试在 ViewForRow 方法中显示相同的内容。请检查下面的代码

   //In ViewDidLoad()
    NSArray *box12names = [[NSArray alloc] initWithObjects:@"Black",@"Brown",@"Red",@"Orange",@"Yellow",@"Green",nil];
   
   self.box1_views = [[NSMutableArray alloc] initWithCapacity:10]; 
   
   // From code below , Box1_Black, Box1_Brown etc... are my png images in APP
   
   for (NSString *str in box12names) {
   NSString *filename = [[NSString alloc] initWithFormat:@"Box1_%@.png",str];
   UIImage *image = [UIImage imageNamed:filename];
   UIImageView *imageview = [[UIImageView alloc] initWithImage:image];
   
   [self.box1_views addObject:imageview];
   [filename release];
   [imageview release];
   
   }
   
    [self.box1_views release];
   
   self.box2_views = [[NSMutableArray alloc] initWithCapacity:10]; 
   
   for (NSString *str in box12names) {
   NSString *filename = [[NSString alloc] initWithFormat:@"Box2_%@.png",str];
   UIImageView *imageview = [[UIImageView alloc] initWithImage:[UIImage imageNamed:filename]];
   
   [self.box2_views addObject:imageview];
   [filename release];
   [imageview release];
   
   }
   
   [self.box2_views release];
   
   [box12names release];
   
   
   //In PickerViewDelegate method
   
   -(UIView *)pickerView:(UIPickerView *)pickerView
      viewForRow:(NSInteger)row
    forComponent:(NSInteger)component reusingView:(UIView *)view
   
   {
   
   NSString *arrayName = [[NSString alloc] initWithFormat:@"box%d_views", component +1];
   
   NSArray *array = [self valueForKey:arrayName];
   
   UIView *tempview = [array objectAtIndex:row];
   
   [arrayName release];
   
   return tempview;
   
   }
   
   
   
   //Here my picker view is displaying wierdly with iOS 7+ version whereas works good with iOS 6
   

请帮忙

Answer 1

我认为您没有在 pickerview 的重用视图中添加 imageview 的子视图。所以在pickerView:viewForRow方法中尝试以下行：

tempView.addSubview(imageView);

Answer 2

问题解决了 -

{
NSString *arrayName = [[NSString alloc] initWithFormat:@"band%d_views", component +1];
NSArray *array = [self valueForKey:arrayName];
//UIView *tempview = [array objectAtIndex:row];
UIView *tempview=[[UIView alloc] init];
[tempview setBackgroundColor:[UIColor colorWithPatternImage:[[array objectAtIndex:row] image]]];

[arrayName release];
return tempview;
}