#include <substrate.h>

#import <objc/runtime.h>

#import <UIKit/UIKit.h>

// Original & replaced methods

static void (*original_objc_method)(id self, SEL selector, id value);

static void replaced_objc_method(id self, SEL selector, id value);

// Replaced method

static void replaced_objc_method(id self, SEL selector, id value)

{

    // Call original method

    original_objc_method(self, selector, value);

    // TODO:

    UIAlertView * alert = [[UIAlertView alloc]initWithTitle:@"From SpringBoard"

                                                    message:@"SpringBoard hook success!"

                                                  delegate:nil

                                          cancelButtonTitle:@"OK"

                                          otherButtonTitles:nil, nil];

    [alert show];

}

static __attribute__((constructor)) void dylib_init()

{

    // NSString or string can be hidden

    SEL target = NSSelectorFromString(@"applicationDidFinishLaunching:");

    MSHookMessageEx(objc_getClass("SpringBoard"), target, (IMP)&replaced_objc_method, (IMP *)&original_objc_method);

}