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问题描述
SomeImage 是 UIImageView* 全局声明的
SomeImage is UIImageView* globally declared
-(void)InMethodCalledFromViewDidLoad
{
SomeImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"SomeImage.png"]];
SomeImage.frame = CGRectMake(0, 640, 1024,110);
[self.view addSubview:SomeImage];
SomeImage.hidden = YES;
[self OneMoreMethod];
}
-(void)OneMoreMethod{
SomeImage.hidden = NO;//image becomes visible
[self SecondMethod];
/*but now from this point onwards even if SomeImage.hidden changed to NO then only nummerical value of SomeImage.hidden changes but image itself stays hidden doesnt become visible at all */
}
-(void)SecondMethod
{
int tmp = 0;
NSArray* PosAndSizeArrForCurrSlot = [[PosAndSizeArr objectAtIndex:SlotId] componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@" "]];
for(NSString* values in PosAndSizeArrForCurrSlot)
PositionAndSize[tmp++] = [values intValue];
}
我无法理解为什么即使在调用 SecondMethod 后将 hiiden 属性设置为 NO 之后 SomeImage 也不可见.
i am not able to understand why SomeImage is not being visible even after setting hiiden property to NO after SecondMethod is called.
推荐答案
这可能是一个废话"的答案，但似乎总是咬我的屁股，你的 imageview 连接到你的 .xib 了吗?如果未设置插座，则不会收到更改.
This might be a "duh" answer, but seems to always bite me in the butt, is your imageview connected to your .xib? If the outlet isn't set, it won't receive the changes.
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