我只是想知道是否可以将非ARC项目转换为ARC而不重新创建它？谢谢
我尝试创建UIImageView时出错.看看这段代码:
UIImage* backgroundPanel = [[UIImage imageNamed:@"loginPanelBackground.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(90, 0, 149, 416)];
self.connexionBackgroundImgView = [[UIImageView alloc] initWithImage:backgroundPanel];
self.connexionBackgroundImgView.frame = CGRectMake(0, 0, 416, 390); // THIS LINE PROVOC THE INVALID CONTEXT
[self.connexionView insertSubview:self.connexionBackgroundImgView aboveSubview:self.connexionToCreationCompteView];
它会在日志中抛出此错误:
<Error>: CGContextSaveGState: invalid context 0x0
<Error>: CGContextSetBlendMode: invalid context 0x0
<Error>: CGContextSetAlpha: invalid context 0x0
<Error>: CGContextTranslateCTM: invalid context 0x0
<Error>: CGContextScaleCTM: invalid context 0x0
<Error>: CGContextGetCTM: invalid context 0x0
<Error>: CGContextSaveGState: invalid context 0x0
<Error>: CGContextClipToRect: invalid context 0x0
<Error>: CGContextDrawTiledImage: invalid context 0x0
<Error>: CGContextRestoreGState: invalid …我第一次使用UIRefreshControl,在加载刷新控件时出现异常.
这里是我的报关表 :
self.refreshControl = [[UIRefreshControl alloc] init];
self.refreshControl.tintColor = [UIColor grayColor];
[self.refreshControl addTarget:self action:@selector(refreshView:) forControlEvents:UIControlEventValueChanged];
[self.actualitesTableView addSubview:self.refreshControl];
这是我的功能:
- (void)refreshView:(UIRefreshControl *)sender {
[self performSelectorInBackground:@selector(threadAction) withObject:nil];
}
- (void)threadAction {
[self choixMAJ];
NSLog(@"OK1");
[self.refreshControl endRefreshing];
NSLog(@"OK2");
}
当我使用choixMAJ()方法时,它完美地工作.
一切正常,OK2被记录但在此之后,当刷新控件消失时,应用程序崩溃了这个错误:
*** -[__NSArrayM removeObject:]: message sent to deallocated instance 0x655a1a0
我不明白为什么..有什么想法吗？