Question

在我的场面上,我稍有麻烦地提出新的看法,我有这样的守则:

- (void) showMyDayView {
NSLog(@"My Day View was touched");

MyDayViewController *temp = [[MyDayViewController alloc] initWithNibName: @"MyDayView" bundle:nil];
self.myDayViewController = temp;

NSLog(@"superview: %@", [[self mainNavView] superview]);
[[self mainNavView] removeFromSuperview];
NSLog(@"after removal main: %@", [self mainNavView]);
NSLog(@"after removal view: %@", [self view]);
NSLog(@"after removal superview: %@", [[self view] superview]);

[[[self view] superview] addSubview: [self.myDayViewController view]];

[temp release];
}

当我管理该法典时,奥索尔说,“除去了我(null)”

因此,当我对超级意见补充次意见时,不会发生任何情况,因为超级意见是无效的。

任何想法?

Thanks Mark

Answer 1

如果你想要再利用一种看法,即你将去除综观,你必须首先保留。摘除FromSuperview释放了援引的任何观点。

因此

[[self mainNavView] retain]
[[self mainNavView] removeFromSuperview];

[其本人的主要《纳文》]仍然可以安全使用。

友情链接