iOS8 EXC_BAD_ACCESS 执行时 [[NSString alloc] initWithFormat :format arguments:argList]

Question

以下代码在 iOS7 上运行良好。当我在 Xcode6/iOS 上运行时它崩溃了。

+ (void)log:(NSString *)format arguments:(va_list)argList
{   
    NSLogv(format, argList);

    if ([self sharedConsole].enabled)
    {
        NSString *message = [[NSString alloc] initWithFormat:format arguments:argList]; //Crash here with info of EXC_BAD_ACCESS
        if ([NSThread currentThread] == [NSThread mainThread])
        {   
            [[self sharedConsole] logOnMainThread:message];
        }
        else
        {
            [[self sharedConsole] performSelectorOnMainThread:@selector(logOnMainThread:)
                                                   withObject:message waitUntilDone:NO];
        }
    }
}

Answer 1

我也有同样的问题!

NSLogv 在 iOS8 上的实现变化

我的解决方案:关闭 va_list 并在每次使用之间重新初始化它。

+ (void)log:(NSString *)format arguments:(va_list)argList
{   
    va_start(argList,format) ;
    NSLogv(format, argList);
    va_end(argList) ;

    va_start(argList,format) ;
    if ([self sharedConsole].enabled)
    {
        NSString *message = [[NSString alloc] initWithFormat:format arguments:argList]; //Crash here with info of EXC_BAD_ACCESS
        if ([NSThread currentThread] == [NSThread mainThread])
        {   
            [[self sharedConsole] logOnMainThread:message];
        }
        else
        {
            [[self sharedConsole] performSelectorOnMainThread:@selector(logOnMainThread:)
                                                   withObject:message waitUntilDone:NO];
        }
    }
    va_end(argList) ;
}

(Tof，以前@user2424230)