object_getClassName得到類名字符串
~~~
/**
* Returns the class name of a given object.
*
* @param obj An Objective-C object.
*
* @return The name of the class of which \e obj is an instance.
*/
OBJC_EXPORT const char *object_getClassName(id obj)
__OSX_AVAILABLE_STARTING(__MAC_10_0, __IPHONE_2_0);
~~~
~~~
#import "ViewController.h"
#import <objc/runtime.h>
#import "Person.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
Person * p1 = [[Person alloc] init];
const char * cName;
cName = object_getClassName(p1);
NSLog(@"%s", cName);
}
~~~
輸出：
- 前言
- object_getIvar
- object_getClass
- object_getClassName
- object_setClass
- object_isClass
- object_setIvar
- objc_getClass
- Too many arguments to function call...
- objc_msgSend
- class_copyIvarList和class_copyMethodList
- method_exchangeImplementations
- 運用SEL，運行時改變兩個方法的實現
- class_getInstanceMethod和class_getClassMethod
- class_respondsToSelector
- Objective-C Runtime 運行時之三：方法與消息