Cocoa-Invoking function

Cocoa-調用函式
Last Update: 2010/07/19 16:35


使用NSObject 的 performSelector 來調用函式
SEL 是一個指標結構，用來儲存函式指標

typedef struct {
int code;
NSString *message;
}PassingData;

- (void)invokedMethod : (id)sender : (PassingData*)msg{
NSLog(@"%d : %@", msg->code, msg->message);
}

- (void)execInvoke : (id)sender : (SEL)method{
PassingData *pd = malloc(sizeof(PassingData));
pd->code = 3;
pd->message = @"QWERT";
[sender performSelector:method withObject:sender withObject:(id)pd];
free(pd);
}

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
// Insert code here to initialize your application 
[self execInvoke:self :@selector(invokedMethod::)];
}