Question

我有一个名为RestClient的类，它实现了NSURLConnectionDataDelegate。

在CCLayerColor类的Menu中，（我的cocos2d应用程序的菜单）我有一个RestClient类型的属性定义如下：

@property(nonatomic, strong) RestClient *rc;

在onEnterTransitionDidFinish中，我有以下代码：

[super onEnterTransitionDidFinish];


AppController *appDel = (AppController *)[[UIApplication sharedApplication] delegate];
if (appDel.FreeVersion) {

    if (!self.rc) {
        self.rc = [[RestClient alloc] init]; //released in dealloc
    }

    [rc GetMessage];
}

Menu类的dealloc如下所示：

    - (void) dealloc
{
    NSLog(@"Menu dealloc");
    [rc release];
    [super dealloc];

}

退出菜单后，我看到调用dealloc，但在[rc release] 之后，我没有看到RestClient 触发的dealloc。 知道为什么吗？

以下是RestClient类中的代码：

@implementation RestClient



-(void)GetMessage
{


    NSString *lng = NSLocalizedString(@"lng",nil);

    NSString *urlStr = [NSString stringWithFormat:@"http://MyLink/%@", [lng uppercaseString]];

    NSURL *url = [NSURL URLWithString:urlStr];

    NSURLRequest *req = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0];

    [NSURLConnection connectionWithRequest:req delegate:self];
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

    messageData = [[NSMutableData alloc] init];
}

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{

    [messageData appendData:data];

}

-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    //show the message
    if (!errorReceivingMessage) {

        id json = [NSJSONSerialization JSONObjectWithData:messageData options:kNilOptions error:nil];


        msgDict = (NSDictionary*)json;
        NSString *msgText = [msgDict objectForKey:@"MessageText"];
        NSString * msgTitle = [msgDict objectForKey:@"MessageTitle"];
        NSString * buyButtonText = [msgDict objectForKey:@"BuyButtonText"];
        NSString *cancelButtonText = [msgDict objectForKey:@"CancelButtonText"];

        [messageData release];
        UIAlertView *alert =[[UIAlertView alloc] initWithTitle:msgTitle message:msgText delegate:self
                                             cancelButtonTitle:cancelButtonText
                                             otherButtonTitles: buyButtonText , nil];
        [alert show];
        [alert release];
    }

}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == 1) {

        [[UIApplication sharedApplication]
         openURL:[NSURL URLWithString:@"https://someLink"]];
    }

}

-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{

    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
    if (messageData) {
        [messageData release];
    }
    errorReceivingMessage = YES;


}

-(void)dealloc
{
    NSLog(@"Dealloc RestClient");
    //[messageData release];

    [super dealloc];
}

@end

Answer 1

使用ARC

时无需致电release

如果您在ARC下重写dealloc方法，则不得调用[super dealloc]，因为它是由编译器自动生成的

Answer 2

我假设您没有使用ARC。如果是这样的话：

self.rc = [[[RestClient alloc] init] autorelease]; //released in dealloc

在非弧形中，我认为强与保持相同。这意味着您使用init创建它（因此需要释放它），然后使用属性保留它。所以你需要两个版本。

在Cocos2d应用程序中释放对象

2 个答案: