runtimedump

Use with cycript (use ?expand in cycript to get new lines)

$headerString or $hs

Use this to print the header of the class directly in the terminal. For example:

[NSObject $headerString];
[NSObject $hs];
NSObject *someObject = [[NSObject alloc] init];
[someObject $headerString];
[someObject $hs];

Will all print the same thing, the header of NSObject (including private methods and any added at runtime such as those added by tweaks)

$hs is just shortcut for $headerString, because I'm lazy.

$classes

Print an array of all classes loaded from an NSBundle.

For example:

[[NSBundle mainBundle] $classes];

Will print the list of classes in the mainBundle, so if you're in MobileSafari it will include names like BrowserController.

You can get an array of all headers by doing: (may be useful for dumping all headers in an app)

[[[NSBundle mainBundle] $classes] valueForKey:@"$hs"];

$printAllIVars

Print the names of all Ivars against their current values. This is useful because if you have an object (say just a UIView, so there's no delegate or anything to follow), and you think you know another objet references it, but are not sure which instance variable holds the reference. You can just Cmd-F on the above.

For example, you have a view v:

[v superview] 

Gives:

<UIView: 0x137df4b30; frame = (0 20; 320 548); layer = <CALayer: 0x137df43e0>>

You think BrowserController is likely to reference [v superview], so do:

[[BrowserController sharedBrowserController] $printAllIVars]

Which gives: (NB: this is a string not a dictionary because cycript doesn't expand new lines in dictionary descriptions)

_window : <MobileSafariWindow: 0x137df2de0; baseClass = UIWindow; frame = (0 0; 320 568); opaque = NO; gestureRecognizers = <NSArray: 0x137f96060>; layer = <UIWindowLayer: 0x137d8dbf0>>
_addressView : (null)
_backgroundColorView : <UIView: 0x137df32b0; frame = (0 44; 320 460); layer = <CALayer: 0x139002020>>
_rootView : <UIView: 0x137df4b30; frame = (0 20; 320 548); layer = <CALayer: 0x137df43e0>>
//...etc...

Searching for 0x137df4b30 will show you that instance variable you're looking for is _rootView.

You can then look at the header to see if there's an accessor method, or use the instance variable in your code directly.

$selectView

Allows you to touch the screen to select a view.

For example:

[UIApp $selectView];

The screen will then tint red, and you can tap on the screen to select the view under where you tap. The selected view will be returned by the method. This method doesn't return until you tap on the screen.

$methods

Returns an array of selectors of all the methods of the object.

For example:

[NSObject $messages];

Returns all the class methods of NSObject.

And:

[[NSObject new] $messages];

Returns all the induce methods of NSObject.