Print View Controller Hierarchy

lldb printHierarchy

# See http://stackoverflow.com/questions/27966453/how-to-use-printhierarchy-in-lldb-console-with-swift

# Only Obj-C when pressing pause button
po [[[UIWindow keyWindow] rootViewController] _printHierarchy]
# Can use Swift when on breakpoint
po UIApplication.sharedApplication().keyWindow!.rootViewController!._printHierarchy

# Force Obj-C on breakpoint
expr -l objc++ -O -- [[[UIWindow keyWindow] rootViewController] _printHierarchy]