iOS運(yùn)行時(shí)獲取對(duì)象的成員變量和成員方法

1. 首先導(dǎo)入runtime 頭文件 #import<objc/runtime.h>

2.獲取某個(gè)類的成員變量或則屬性

 unsigned int numIvars;//成員變量個(gè)數(shù)

 Ivar *vars = class_copyIvarList(NSClassFromString(@"UIView"), &numIvars);

//Ivar *vars = class_copyIvarList([UIView class], &numIvars);

 NSString*key = nil;

 for(int i =0; i < numIvars; i++) {

   Ivar thisIvar = vars[i];

   key = [NSString stringWithUTF8String:ivar_getName(thisIvar)];//獲取成員變量的名字

   NSLog(@"variable name :%@", key);

   key = [NSString stringWithUTF8String:ivar_getTypeEncoding(thisIvar)];//獲取成員變量的數(shù)據(jù)類型

   NSLog(@"variable type :%@", key);
 }
 free(vars);

3.獲取成員函數(shù)

Method*meth =class_copyMethodList(NSClassFromString(@"UIView"), &numIvars);

//Method *meth = class_copyMethodList([UIView class], &numIvars);

   for(int i =0; i < numIvars; i++) {

     Method thisIvar = meth[i];

     SEL sel =method_getName(thisIvar);

     const char *name =sel_getName(self);

     NSLog(@"zp method :%s", name);

   }

   free(meth);