问题描述
在Xcode 8.0 beta(8S128d)上，NSLog上没有任何内容. printf不变
Nothing prints from NSLog on Xcode 8.0 beta (8S128d). printf is unchanged
这是我的代码:
NSLog(@"hello from NSLog");
printf("hello from printf");
这是iOS 9 Simulator上的输出:
Here's the output on iOS 9 Simulator:
2016-06-17 09:49:10.887 calmapp-dev[28517:567025] hello from NSLog
hello from printf
这是iOS 10 Simulator上的输出:
Here's the output on iOS 10 Simulator:
hello from printf
推荐答案
可能是您在Scheme环境变量中添加了属性"OS_ACTIVITY_MODE":"disable"(以隐藏来自模拟器的OS输出)并忘记了它，现在正在实际设备上运行.
It could be that you added the property "OS_ACTIVITY_MODE": "disable" in the Scheme environment variables (to hide OS output from the simulator) and forgot about it, and now are running on a real device.
在Xcode 8中:
Product -> Scheme -> Edit Scheme -> Run -> Arguments -> Environment Variables
仅添加OS_ACTIVITY_MODE并进行检查(不添加值)
Only add OS_ACTIVITY_MODE and check it（Don't add a value）
摘要:这是Xcode 8 + iOS10的错误，我们可以通过以下方式解决它:
Summary:This is a bug of Xcode 8 + iOS10, we can solve it in this way:
-
使用模拟器时，添加名称"OS_ACTIVITY_MODE"和值"disable"并进行检查.
When using the simulator, add the Name "OS_ACTIVITY_MODE" and the Value "disable" and check it.
在真实设备上时，仅添加"OS_ACTIVITY_MODE"并进行检查(不添加值).您将在Xcode8控制台中看到NSLog.
When on a real device, only add "OS_ACTIVITY_MODE" and check it（Don't add the Value）.You will see the NSLog in the Xcode8 Console.
这篇关于iOS 10不打印NSLogs的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！