Xcode8控制台输出警告：subsystem: com.apple.UIKit, category: HIDEventFiltered, enable_level: 0

问题：

更新Xcode8后，运行工程控制台报出如下警告：

2016-10-31 17:35:47.542133 BookBook[9016:205481] subsystem: com.apple.UIKit, category: HIDEventFiltered, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2016-10-31 17:35:47.547191 BookBook[9016:205481] subsystem: com.apple.UIKit, category: HIDEventIncoming, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2016-10-31 17:35:47.611610 BookBook[9016:205478] subsystem: com.apple.BaseBoard, category: MachPort, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
2016-10-31 17:35:47.697515 BookBook[9016:205292] subsystem: com.apple.UIKit, category: StatusBar, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2016-10-31 17:35:47.889 BookBook[9016:205292] verson=1.0.1115.1135
2016-10-31 17:35:48.095527 BookBook[9016:205292] subsystem: com.apple.SystemConfiguration, category: SCNetworkReachability, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 2, enable_private_data: 0
2016-10-31 17:35:48.188343 BookBook[9016:205292] subsystem: com.apple.BackBoardServices.fence, category: App, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
2016-10-31 17:35:48.560400 BookBook[9016:205292] subsystem: com.apple.UIKit, category: Touch, enable_level: 0, persist_level: 0, default_ttl: 1, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0

解决方法：

去工程中去添加一项配置：工程名字 -> Edit Scheme -> Run -> Arguments -> Environment Variables，在Environment Variables下边添加：OS_ACTIVITY_MODE, value值设置为disable。