[英]Subclassed UIView not displaying UIImageViews added to it
因此,我有一個稱為CSImageViews(uiview的子類)的類,它實際上是一行UIImageViews,包含在單個子類UIView中。
我添加了一個像這樣的自定義init方法(node / yaml包含uiimage名稱數據):
- (id)initWithFrame:(CGRect)frame withNode:(NSDictionary *)node
{
self = [super initWithFrame:frame];
if (self) {
_node = node;
_imageViewYAML = [node objectForKey:@"items"];
_imageViews = [self getImageViewsForItems:_imageViewYAML];
}
return self;
}
我的getImageViewsforItems就像這樣(將它們全部添加到子視圖中):
-(NSArray *)getImageViewsForItems:(NSArray *)items
{
NSMutableArray *ivs = [NSMutableArray arrayWithCapacity:[items count]];
for (int i = 0; i < [items count]; i++) {
NSDictionary *item = [items objectAtIndex:i];
NSString *type = [item objectForKey:@"type"];
NSString *name = [item objectForKey:@"name"];
UIImage *image = [UIImage imageNamed:name];
UIImageView *iv = [[UIImageView alloc] init];
iv.image = image;
iv.tag = i;
[ivs addObject:iv];
[self addSubview:iv];
}
return ivs;
}
現在,當我像這樣將此自定義視圖添加到主視圖時,什么也沒有發生:
CSImageViews *imageViews = [[CSImageViews alloc] initWithFrame:frame withNode:node];
[view addSubview:imageViews];
但是,如果我首先將此“ csimageviews”容器添加到新的uiview中,則會出現:
CSImageViews *imageViews = [[CSImageViews alloc] initWithFrame:frame withNode:node];
UIView *v = [[UIView alloc] initWithFrame:frame];
[v addSubview:imageViews];
[view addSubview:v];
有什么想法嗎?
我的愚蠢錯誤。 在這個特定的子類UIView中,我有一個方法,每次顯示其父視圖控制器時都會調用該方法。 此方法實際上從視圖中刪除了所有子視圖...因此,當我在初始視圖中渲染uiimageviews時,我看不到它。
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