Question

我的主要代码中有这一行：

[self performSelectorInBackground:@selector(animateMe) withObject:nil];

这是animateMe

- (void) animateMe {

  [UIView animateWithDuration:1.0
     animations:^{
           [myView setAlpha:0.0f];

  }];

}

这些是我在终端上看到的消息

 *** __NSAutoreleaseNoPool(): Object 0x1af740 of class myClass autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1af740 of class myClass autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1af740 of class myClass autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x193190 of class CABasicAnimation autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1b8230 of class NSConcreteValue autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1af740 of class myClass autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1c0ee0 of class CABasicAnimation autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1b4260 of class NSCFNumber autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1aeb30 of class __NSCFDictionary autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1debd0 of class myClass autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1debd0 of class myClass autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1debd0 of class myClass autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1dad90 of class CABasicAnimation autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x16db40 of class NSConcreteValue autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1debd0 of class myClass autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1aafc0 of class CABasicAnimation autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1dfc10 of class NSCFNumber autoreleased with no pool in place - just leaking
 *** __NSAutoreleaseNoPool(): Object 0x1d1470 of class __NSCFDictionary autoreleased with no pool in place - just leaking

我该如何解决？

感谢。

Answer 1

- (void) animateMe {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  [UIView animateWithDuration:1.0
     animations:^{
           [myView setAlpha:0.0f];

  }];
  [pool drain];
}

Answer 2

它告诉你到底出了什么问题 - 当选择器执行时你没有自动释放池。你需要添加：

NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

一开始，并且：

[pool drain];

在方法结束时。

Answer 3

它可以帮助某人

@autoreleasepool {

//enter code here

}

Answer 4

animateMe正在新线程中执行，因为它是从performSelectorInBackground调用的。每当你产生一个线程时，该线程应该创建并耗尽它自己的自动释放池。

来自Apple documentation： “......如果你分离一个线程，你需要创建自己的自动释放池块。”

iphone - 自动释放，没有游泳池 - 只是泄漏

4 个答案: