Coding-iOS/Coding_iOS/Util/ObjcRuntime/ObjcRuntime.m at master · coding/Coding-iOS · GitHub

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// ObjcRuntime.m

// CSMBP

// Created by 杨辉 on 14-1-20.

#import "ObjcRuntime.h"

#import <objc/runtime.h>

NSDictionary *GetPropertyListOfObject(NSObject *object){

return GetPropertyListOfClass([object class]);

}

NSDictionary *GetPropertyListOfClass(Class cls){

NSMutableDictionary *dict = [NSMutableDictionary dictionary];

unsigned int outCount, i;

objc_property_t *properties = class_copyPropertyList(cls, &outCount);

for(i = 0; i < outCount; i++) {

objc_property_t property = properties[i];

const char *propName = property_getName(property);

const char *propType = property_getAttributes(property);

if(propType&&propName) {

NSArray *anAttribute = [[NSString stringWithUTF8String:propType]componentsSeparatedByString:@","];

NSString *aType = anAttribute[0];

//暂时不能去掉前缀T@\"和后缀"，需要用以区分标量与否

// if ([aType hasPrefix:@"T@\""]) {

// aType = [aType substringWithRange:NSMakeRange(3, [aType length]-4)];

// }else{

// aType = [aType substringFromIndex:1];

// }

[dict setObject:aType forKey:[NSString stringWithUTF8String:propName]];

}

free(properties);

return dict;

}

//静态就交换静态，实例方法就交换实例方法

void Swizzle(Class c, SEL origSEL, SEL newSEL)

{

Method origMethod = class_getInstanceMethod(c, origSEL);

Method newMethod = nil;

if (!origMethod) {

origMethod = class_getClassMethod(c, origSEL);

if (!origMethod) {

return;

}

newMethod = class_getClassMethod(c, newSEL);

if (!newMethod) {

return;

}

}else{

newMethod = class_getInstanceMethod(c, newSEL);

if (!newMethod) {

return;

}

//自身已经有了就添加不成功，直接交换即可

if(class_addMethod(c, origSEL, method_getImplementation(newMethod), method_getTypeEncoding(newMethod))){

class_replaceMethod(c, newSEL, method_getImplementation(origMethod), method_getTypeEncoding(origMethod));

}else{

method_exchangeImplementations(origMethod, newMethod);

}

Coding-iOS/Coding_iOS/Util/ObjcRuntime/ObjcRuntime.m at master · coding/Coding-iOS · GitHub

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