macdylib的编写

源码&＃xff1a;
https://github.com/haidragon/mydylib
创建一个dylib项目
源码&＃xff1a;
main.m

//
// testdylib.m
// testdylib
//
// Created by haidragon on 2019/4/3.
// Copyright © 2019 haidragon. All rights reserved.
//#import "testdylib.h"
#import
&＃64;implementation testdylib : NSObject&＃64;end
__attribute__((constructor)) void DylibMain1(){NSAlert *alert &＃61; [NSAlert alertWithMessageText:&＃64;"MessageBox"defaultButton:&＃64;"defaultButton"alternateButton:&＃64;"alternateButton"otherButton:&＃64;"otherButton"informativeTextWithFormat:&＃64;"DylibMain1"];NSUInteger action &＃61; [alert runModal];//响应window的按钮事件
// if(action &＃61;&＃61; NSAlertDefaultReturn)
// {
// NSLog(&＃64;"defaultButton clicked!");
// }
// else if(action &＃61;&＃61; NSAlertAlternateReturn )
// {
// NSLog(&＃64;"alternateButton clicked!");
// }
// else if(action &＃61;&＃61; NSAlertOtherReturn)
// {
// NSLog(&＃64;"otherButton clicked!");
// }
}
__attribute__((constructor)) void DylibMain2(){NSAlert *alert &＃61; [NSAlert alertWithMessageText:&＃64;"MessageBox"defaultButton:&＃64;"defaultButton"alternateButton:&＃64;"alternateButton"otherButton:&＃64;"otherButton"informativeTextWithFormat:&＃64;"DylibMain2"];NSUInteger action &＃61; [alert runModal];//响应window的按钮事件// if(action &＃61;&＃61; NSAlertDefaultReturn)// {// NSLog(&＃64;"defaultButton clicked!");// }// else if(action &＃61;&＃61; NSAlertAlternateReturn )// {// NSLog(&＃64;"alternateButton clicked!");// }// else if(action &＃61;&＃61; NSAlertOtherReturn)// {// NSLog(&＃64;"otherButton clicked!");// }
}
void __attribute__ ((destructor)) unload(void){NSAlert *alert &＃61; [NSAlert alertWithMessageText:&＃64;"MessageBox"defaultButton:&＃64;"defaultButton"alternateButton:&＃64;"alternateButton"otherButton:&＃64;"otherButton"informativeTextWithFormat:&＃64;"unload"];NSUInteger action &＃61; [alert runModal];//响应window的按钮事件// if(action &＃61;&＃61; NSAlertDefaultReturn)// {// NSLog(&＃64;"defaultButton clicked!");// }// else if(action &＃61;&＃61; NSAlertAlternateReturn )// {// NSLog(&＃64;"alternateButton clicked!");// }// else if(action &＃61;&＃61; NSAlertOtherReturn)// {// NSLog(&＃64;"otherButton clicked!");// }
}


创建加载程序
源码
exe.m

//
// main.m
// testexe
//
// Created by haidragon on 2019/4/3.
// Copyright © 2019 haidragon. All rights reserved.
//#import
#import
#include
int main(int argc, const char * argv[]) {&＃64;autoreleasepool {void* handle &＃61; dlopen("/Users/haidragon/Library/Developer/Xcode/DerivedData/testdylib-fgxcocyqbpxowtbcuglxlehxutzv/Build/Products/Debug/libtestdylib.dylib", RTLD_LAZY);printf("%x",handle);// insert code here...NSLog(&＃64;"Hello, World!");// NSAlert *alert &＃61; [NSAlert alertWithMessageText:&＃64;"messageText"
// defaultButton:&＃64;"defaultButton"
// alternateButton:&＃64;"alternateButton"
// otherButton:&＃64;"otherButton"
// informativeTextWithFormat:&＃64;"informativeText"];
//
// NSUInteger action &＃61; [alert runModal];
// //响应window的按钮事件
// if(action &＃61;&＃61; NSAlertDefaultReturn)
// {
// NSLog(&＃64;"defaultButton clicked!");
// }
// else if(action &＃61;&＃61; NSAlertAlternateReturn )
// {
// NSLog(&＃64;"alternateButton clicked!");
// }
// else if(action &＃61;&＃61; NSAlertOtherReturn)
// {
// NSLog(&＃64;"otherButton clicked!");
// }}return 0;
}


运行程序
构造函数1

构造函数2

析构