在我的拆分视图iPad应用程序中,默认的详细视图从数组中随机加载图像,并在用户返回该视图时执行此操作。该应用程序加载罚款与该视图,我可以去另一个视图罚款。问题是,如果我回到那个视图,有时它会崩溃,有时它会崩溃,如果我回到默认视图后选择另一个视图。当我运行泄漏工具时,我没有显示任何泄漏,并且每次发生崩溃时都不会在日志中显示任何内容。我确实收到了“接收到的内存警告”记录,所以它的崩溃必定与某处泄漏有关,我只是不确定在哪里。我正在使用ARC。有任何想法吗?收到内存警告iOS
这里是我的viewDidLoad方法:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UIImage *agelity = [UIImage imageNamed:@"Agelity"];
UIImage *agelity2 = [UIImage imageNamed:@"Agelity2"];
UIImage *biltmore = [UIImage imageNamed:@"Biltmore"];
UIImage *biltmore2 = [UIImage imageNamed:@"Biltmore2"];
UIImage *biltmore3 = [UIImage imageNamed:@"Biltmore3"];
UIImage *choice = [UIImage imageNamed:@"Choice"];
UIImage *enterprise = [UIImage imageNamed:@"Enterprise"];
UIImage *enterprise2 = [UIImage imageNamed:@"Enterprise2"];
UIImage *grainger = [UIImage imageNamed:@"Grainger"];
UIImage *grainger2 = [UIImage imageNamed:@"Grainger2"];
UIImage *greatWolf = [UIImage imageNamed:@"Great_Wolf"];
UIImage *greatWolf2 = [UIImage imageNamed:@"Great_Wolf2"];
UIImage *officeDepot = [UIImage imageNamed:@"Office_Depot1"];
UIImage *officeDepot2 = [UIImage imageNamed:@"Office_Depot2"];
UIImage *officeDepot3 = [UIImage imageNamed:@"Office_Depot3"];
UIImage *sams = [UIImage imageNamed:@"Sams"];
UIImage *sams2 = [UIImage imageNamed:@"Sams2"];
NSMutableArray *benefitAds = [[NSMutableArray alloc]initWithObjects:agelity, agelity2, biltmore, biltmore2, biltmore3, choice, enterprise, enterprise2, grainger, grainger2, greatWolf, greatWolf2, officeDepot, officeDepot2, officeDepot3, sams, sams2, nil];
int randomIndex = arc4random() % [benefitAds count];
adImage.image = [benefitAds objectAtIndex:randomIndex];
[self configureView];
}
编辑:我试图用使用imageWithData代替imageNamed的建议,所以我这样做:
NSData *agelityData = [NSData dataWithContentsOfFile:@"Agelity"];
UIImage *agelity = [UIImage imageWithData:agelityData];
但现在的应用与上线发生冲突:
int randomIndex = arc4random() % [benefitAds count];
与:
Thread 1: EXC_ARITHMETIC(code=EXC_I386_DIV, subcode=0x0)
当我在我的设备,而不是在模拟器上运行它,我得到这个:
Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index 3051310543 beyond bounds for empty array'
编辑:我设置异常断点,因为我得到一个EXC_BAD_ACCESS码= 1个错误。看起来应用程序在我改变细节视图时会随机崩溃。我想我会创建一个新的问题。
感谢您的帮助!
顺便说一句,以避免模偏置,而不是'与''%结合运营商arc4random',您可能需要使用['arc4random_uniform'(http://developer.apple。 COM /库/ MAC /文档/达尔文/参考/手册页/ man3/arc4random_uniform.3.html)。但卢卡斯的回答应该解决记忆问题。 – Rob
好的,现在只需要使用imageNamed,你的文件路径没有被正确使用,这是一组完全不同的iOS细节...无论如何,与阵列人的建议一起去吧。我不认为你正在释放该阵列。 –