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2014/10/15 ¤U¤È 10:14:00
iphone Programming Glossary: settargethttp://stackoverflow.com/questions/1349740/arguments-in-selector @ someOtherString The invocation object must retain its arguments str1 retain str2 retain Set the arguments invocation setTarget targetInstance invocation setArgument str1 atIndex 2 invocation setArgument str2 atIndex 3 NSTimer scheduledTimerWithTimeInterval.. Indices 0 and 1 indicate the hidden arguments self and _cmd respectively you should set these values directly with the setTarget and setSelector methods. Use indices 2 and greater for the arguments normally passed in a message. share improve this..
How to set target and action for UIBarButtonItem at runtime http://stackoverflow.com/questions/2333638/how-to-set-target-and-action-for-uibarbuttonitem-at-runtime to set target and action for UIBarButtonItem at runtime Tried this but only works for UIButton btn setTarget self action @selector btnClicked forControlEvents UIControlEventTouchUpInside iphone uibutton action target uibarbuttonitem..
How to change a UIBarButtonItem in a UINavigationBar http://stackoverflow.com/questions/2570247/how-to-change-a-uibarbuttonitem-in-a-uinavigationbar iPhone Development book. void viewDidLoad super viewDidLoad UIBarButtonItem editButton self.editButtonItem editButton setTarget self editButton setAction @selector toggleEdit self.navigationItem.leftBarButtonItem editButton And the method toggleEdit..
SEL performSelector and arguments http://stackoverflow.com/questions/2716143/sel-performselector-and-arguments inv NSInvocation invocationWithMethodSignature parent methodSignatureForSelector sel inv setSelector sel inv setTarget parent inv setArgument i atIndex 2 arguments 0 and 1 are self and _cmd respectively automatically set by NSInvocation inv.. inv NSInvocation invocationWithMethodSignature parent methodSignatureForSelector sel inv setSelector sel inv setTarget parent inv setArgument i atIndex 2 arguments 0 and 1 are self and _cmd respectively automatically set by NSInvocation inv..
Using performSelector:withObject:afterDelay: with non-object parameters http://stackoverflow.com/questions/5210733/using-performselectorwithobjectafterdelay-with-non-object-parameters methodSignatureForSelector @selector setEditing Animated inv setSelector @selector setEditing Animated inv setTarget self.tableView inv setArgument yes atIndex 2 this is the editing BOOL 0 and 1 are explained in the link above inv setArgument..
How to disable iOS System Sounds http://stackoverflow.com/questions/6284402/how-to-disable-ios-system-sounds avSystemControllerClass instanceMethodSignatureForSelector @selector setVolumeTo forCategory volumeInvocation setTarget avSystemControllerInstance volumeInvocation setSelector @selector setVolumeTo forCategory volumeInvocation setArgument newVolumeLevel..
UITextView and UIPickerView with its own UIToolbar http://stackoverflow.com/questions/885002/uitextview-and-uipickerview-with-its-own-uitoolbar PickerObjectSelector NSInvocation invocation NSInvocation invocationWithMethodSignature signature invocation setTarget PickerObjectDelegate invocation setSelector PickerObjectSelector invocation setArgument object atIndex 2 invocation retainArguments..
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