我有一组c++/obj c文件来为Growl创建一种c++包装器(即obj c),但我只限于其中一部分。我需要将Growl Delegate设置为Obj C类中的某个对象,以便调用注册。
这是我的.mm
#import "growlwrapper.h"
@implementation GrowlWrapper
- (NSDictionary *) registrationDictionaryForGrowl {
return [NSDictionary dictionaryWithObjectsAndKeys:
[NSArray arrayWithObject:@"Upload"], GROWL_NOTIFICATIONS_ALL,
[NSArray arrayWithObject:@"Upload"], GROWL_NOTIFICATIONS_DEFAULT
, nil];
}
@end
void showGrowlMessage(std::string title, std::string desc) {
std::cout << "[Growl] showGrowlMessage() called." << std::endl;
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[GrowlApplicationBridge setGrowlDelegate: @""];
[GrowlApplicationBridge
notifyWithTitle: [NSString stringWithUTF8String:title.c_str()]
description: [NSString stringWithUTF8String:desc.c_str()]
notificationName: @"Upload"
iconData: nil
priority: 0
isSticky: YES
clickContext: nil
];
[pool drain];
}
int main() {
showGrowlMessage("Hello World!", "This is a test of the growl system");
return 0;
}
和我的.h
#ifndef growlwrapper_h
#define growlwrapper_h
#include <string>
#include <iostream>
#include <Cocoa/Cocoa.h>
#include <Growl/Growl.h>
using namespace std;
void showGrowlMessage(std::string title, std::string desc);
int main();
#endif
@interface GrowlWrapper : NSObject <GrowlApplicationBridgeDelegate>
@end
现在,正如您所看到的,我的[GrowlApplicationBridge setGrowlDelegate: @""];
被设置为一个空字符串,我需要将其设置为某个值,以便调用registrationDictionaryForGrowl
,而它目前没有被调用。
但我不知道怎么做。有什么帮助吗?
您需要创建一个GrowlWrapper
的实例,并将其作为委托传递给setGrowlDelegate:
方法。您只想在应用程序中执行一次,因此每次调用showGrowlMessage
时都设置它并不理想。您还需要保留对这个GrowlWrapper
的强烈引用,这样您就可以在使用完它后发布它,或者在使用ARC时保持有效。因此,从概念上讲,您在启动时需要以下内容:
growlWrapper = [[GrowlWrapper alloc] init];
[GrowlApplicationBridge setGrowlDelegate:growlWrapper];
关闭时:
[GrowlApplicationBridge setGrowlDelegate:nil];
[growlWrapper release]; // If not using ARC