在我的应用程序中使用块仅在iOS4.3上导致EXC_BAD_ACCESS [英] Using blocks in my app causes EXC_BAD_ACCESS only on iOS4.3

问题描述

我已粘贴 LambdaAlert 进入我的应用程序，当我在iOS4.3上运行时，它会生成EXC_BAD_ACCESS错误。相同的代码在旧版本的操作系统中运行良好。

I've pasted the example code from LambdaAlert into my app and it's generating EXC_BAD_ACCESS error when I run on iOS4.3. The same code works fine in older versions of the OS.

  LambdaAlert *alert = [[LambdaAlert alloc]
                          initWithTitle:@"Test Alert"
                          message:@"See if the thing works."];
    [alert addButtonWithTitle:@"Foo" block:^{ NSLog(@"Foo"); }]; // <-- Crashes here with EXC_BAD_ACCESS no matter what code is in the block (even an empty block!)
    [alert addButtonWithTitle:@"Bar" block:^{ NSLog(@"Bar"); }];
    [alert addButtonWithTitle:@"Cancel" block:NULL];
    [alert show];
    [alert release];

对于iOS4.3，我需要做些什么？

Is there something I need to do differently for iOS4.3?

推荐答案

-weak_library /usr/lib/libSystem.B.dylib 打破iOS模拟器。改为使用 -weak-lSystem 。

-weak_library /usr/lib/libSystem.B.dylib breaks the iOS Simulator. Use -weak-lSystem instead.

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