Question

我有一个启动页面，显示在应用启动时，我的客户希望我在x时间内保持可见状态。一切都很好，除了图像永远不会发布？

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

    NSString *fileLocation = [[NSBundle mainBundle] pathForResource:@"splash_page" ofType:@"png"];

    NSData *imageData = [[NSData alloc] initWithContentsOfFile:fileLocation];
    UIImage *launchImage = [[UIImage alloc] initWithData:imageData];
    [imageData release], imageData = nil;

    UIImageView *launchImageView = [[UIImageView alloc] initWithImage:launchImage];
    launchImageView.frame = CGRectMake(0, 
        0, 
        [[UIScreen mainScreen] bounds].size.width , 
        [[UIScreen mainScreen] bounds].size.height);
    launchImageView.tag = 121;
    [launchImage release], launchImage = nil;

    [self.window addSubview:launchImageView];
    [launchImageView release], launchImage = nil;   

    [self.window makeKeyAndVisible];    
    [self performSelector:@selector(initApp) withObject:nil afterDelay:kInitDelay];

    return YES;
}

- (void)initApp
{
    [[UIApplication sharedApplication] setStatusBarHidden:NO];

    UIImageView *launchImageView = (UIImageView*)[self.window viewWithTag:121];
    [launchImageView removeFromSuperview];

    RootNavController *navController = [[RootNavController alloc] initRootController];
    self.rootNavController = navController;
    [self.window addSubview:navController.view];
    [navController release], navController = nil;
}

我的理解是removeFromSuperview在视图上调用release，所以这应该被释放但是我仍然可以在Intruments Object Allocation工具中看到一个524kb的Malloc，它确实是图像。 Responsible Library = libRIP.A.dylib和Responsible Caller ripl_Create。

如果我注释掉启动页面代码并直接启动NavController我没有那个524kb。

有什么想法吗？

Answer 1

为什么不使用Default.png作为启动画面？将“Splash_page.png”重命名为“Default.png”会自动在加载时显示启动页面，然后只需将UIImageView（带Default.png）添加到MainWindow，并在x时间后启动rootViewController。

为什么这个ImageView没有发布？

1 个答案: