ios setting Wi-Fi 进入当前连接Wi-Fi的详情后控制器为APSettingsController，如何找到这个控制器的头文件？
使用grep命令后结果如下，如何定位头文件的位置呢？
GAGAde-iPhone:~ root# grep -r APSettingsController /System/Library/
Binary file /System/Library/Caches/com.apple.dyld/dyld_shared_cache_armv7s matches
grep: /System/Library/Frameworks/CoreGraphics.framework/Resources/libCGCorePDF.dylib: No such file or directory
grep: /System/Library/Frameworks/CoreGraphics.framework/Resources/libCMSBuiltin.dylib: No such file or directory
grep: /System/Library/Frameworks/CoreGraphics.framework/Resources/libCMaps.dylib: No such file or directory
grep: /System/Library/Frameworks/System.framework/System: No such file or directory