Iphone 如何在iOS中释放子视图

这是添加子视图的代码，我想在添加子视图之前检查它

numberOfViews = [[GlobalVariable sharedInstance].itemNewsDetail count];


for (int i = 0; i < numberOfViews; i++) {
    @try{
        CGFloat xOrigin = i * 320;
        CGRect frame;
        frame.size = CGSizeMake(320, 365);
        frame.origin.x = xOrigin;
        frame.origin.y = 0;

        detailVC = [[DetailScrollVC alloc]initWithNibName:@"DetailScrollVC" bundle:nil];
        detailVC.view.frame = frame;
        [detailVC loadViewByIndex:i];

        UIFont *font = detailVC.txtBodyNews.font;
        detailVC.txtBodyNews.font = [font fontWithSize:currentFontSize];
        detailVC.txtBodyNews.tag = i;

        [scrollDetail addSubview:detailVC.view];
        [scrollDetail sizeToFit];
        [detailVC.view release];
    }@catch (NSException *exception) {
        NSLog(@"ERROR HANDLING : %@",exception);
    }
}

numberOfViews=[[GlobalVariable sharedInstance].itemNewsDetail count]；
对于（int i=0；i

如何检查和释放我以前添加的所有子视图

谢谢。

像这样试试

for (UIView *vie in self.view.subviews)
    {
        if([vie isKindOfClass:[UIImage class]])//here place your object class name for removeing that particuler subview from superview.
            [vie removeFromSuperview];
    }

---

请先在谷歌上搜索你的问题，如果你在谷歌上找不到你的解决方案，那么你应该发布你的问题。请在下面的链接中查看您的答案

---

如果要从scrollview或任何其他视图中删除子视图，请尝试以下代码：

NSArray *viewsToRemove = [yourView subviews];

for (UIView *subviewElement in viewsToRemove) 
{
    [subviewElement removeFromSuperview];
}

 numberOfViews = [[GlobalVariable sharedInstance].itemNewsDetail count];

 for (UIView *subviewElement in scrollDetail.subviews) 
 {
     [subviewElement removeFromSuperview];
 }

 for (int i = 0; i < numberOfViews; i++)
 {
     @try
     {
        CGFloat xOrigin = i * 320;
        CGRect frame;
        frame.size = CGSizeMake(320, 365);
        frame.origin.x = xOrigin;
        frame.origin.y = 0;

        detailVC = [[DetailScrollVC alloc]initWithNibName:@"DetailScrollVC" bundle:nil];
        detailVC.view.frame = frame;
        [detailVC loadViewByIndex:i];

        UIFont *font = detailVC.txtBodyNews.font;
        detailVC.txtBodyNews.font = [font fontWithSize:currentFontSize];
        detailVC.txtBodyNews.tag = i;

        [scrollDetail addSubview:detailVC.view];
        [scrollDetail sizeToFit];
        [detailVC release];
     }
     @catch (NSException *exception) {
        NSLog(@"ERROR HANDLING : %@",exception);
     }
 }

注意：-您的视图是任何类似scrollDetail或self.view等的东西

---

我希望它能帮助你更好地理解。如果要从scrollview或任何其他视图中删除子视图，请尝试以下代码，谢谢：

NSArray *viewsToRemove = [yourView subviews];

for (UIView *subviewElement in viewsToRemove) 
{
    [subviewElement removeFromSuperview];
}

 numberOfViews = [[GlobalVariable sharedInstance].itemNewsDetail count];

 for (UIView *subviewElement in scrollDetail.subviews) 
 {
     [subviewElement removeFromSuperview];
 }

 for (int i = 0; i < numberOfViews; i++)
 {
     @try
     {
        CGFloat xOrigin = i * 320;
        CGRect frame;
        frame.size = CGSizeMake(320, 365);
        frame.origin.x = xOrigin;
        frame.origin.y = 0;

        detailVC = [[DetailScrollVC alloc]initWithNibName:@"DetailScrollVC" bundle:nil];
        detailVC.view.frame = frame;
        [detailVC loadViewByIndex:i];

        UIFont *font = detailVC.txtBodyNews.font;
        detailVC.txtBodyNews.font = [font fontWithSize:currentFontSize];
        detailVC.txtBodyNews.tag = i;

        [scrollDetail addSubview:detailVC.view];
        [scrollDetail sizeToFit];
        [detailVC release];
     }
     @catch (NSException *exception) {
        NSLog(@"ERROR HANDLING : %@",exception);
     }
 }

numberOfViews=[[GlobalVariable sharedInstance].itemNewsDetail count]；
用于（滚动详细信息中的UIView*子视图元素。子视图）
{
[子视图元素从SuperView移除]；
}
对于（int i=0；i

---

我希望它能帮助你更好地理解。谢谢

但是我在这个函数中仍然收到内存警告问题。。你觉得@chandan怎么样？在我的应用程序中，我构建了一个tableview，在选择action时，我将分页添加子视图，就像我给出的代码一样。我认为内存警告的问题是当我生成addsubview时，我只是再次添加它并替换addsubview。我已经应用了它，它工作正常。我补充了另一个答案。我已将我的答案与您的代码合并。如果仍然存在任何问题，请告诉我。警告可能是[detailVC.view release]；所以改变它[detailVC release]；并检查是否设置了scrollview的委托。有时它会发出警告。如果仍然存在问题，请将属性指定给scrollDetail并将其用作self.scrollDetail。谢谢我不能像你说的那样改变它，如果我改为[detailVC release]，我的应用程序会出现lldb错误。谢谢你的帮助@chandan。。但我的应用程序仍然会强制关闭，并出现另一个错误。。lldb。你觉得怎么样？