Question

我正在制作一款包含4款迷你游戏的iPhone游戏。每个迷你游戏都是独立的xib。每个游戏都包含自己的菜单和游戏关卡。您进入主菜单并选择要加载的游戏。

这就是我目前正在加载每个xib的方式。

MainGameViewController.h

@interface MainGameViewController : UIViewController {

    UIViewController *currentView;
    int currentViewId;
}

@property (nonatomic, retain) UIViewController *currentView;
- (void)displayView:(int)intNewView;
@end

MainGameViewController.m

@implementation MainGameViewController

@synthesize currentView;

- (void)viewDidLoad {
    [super viewDidLoad];
    currentView = [[LogoScreen alloc] init];
    [self.view addSubview:currentView.view];
}

- (void)displayView :(int)intNewView
{
    currentViewId = intNewView;
    currentView = nil;
    [currentView release];
    switch (intNewView) {
        case SCR_GAME1:
            currentView = [[Game1View alloc] init];
            break;
        case SCR_GAME1LEVEL:
            currentView = [[Game1LevelView alloc] init];
            break;
        case SCR_GAME2:
            currentView = [[Game2View alloc] init];
            break;
        case SCR_GAME2LEVEL:
            currentView = [[Game2LevelView alloc] init];
            break;
        case SCR_GAME3:
            currentView = [[Game3View alloc] init];
            break;
        case SCR_GAME3LEVEL:
            currentView = [[Game3LevelView alloc] init];
            break;
        case SCR_GAME4:
            currentView = [[Game4View alloc] init];
            break;
        case SCR_GAME4LEVEL:
            currentView = [[Game4LevelView alloc] init];
            break;       
        default:
            currentView = [[MainView alloc] init];
            break;
    }

    [self.view addSubview:currentView.view];
}

- (void)dealloc {
    [currentView release];
    currentView = nil;

    [super dealloc];
}

@end

这就是水平的启动方式。的 Game1View.m

@implementation Game1View

-init {
    if (self == [super init]) {

        MainGameAppDelegate *appdelegate = [[UIApplication sharedApplication] delegate];
        isSoundOn = (appdelegate.gvar.soundstate == 1);
        gamestate = GAME_STATUS_START;
    }
    return self;
}
...
...
- (void)launchgame {

    MainGameAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
    appDelegate.gvar.currentId = objectid;
    [appDelegate displayView:SCR_GAME1LEVEL_GAME];

}

- (void)returnToMain {
    MainGameAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
    [appDelegate displayView:SCR_MAIN];
}

@end

MainGameAppDelegate.m

@implementation MainGameAppDelegate
@synthesize window;
@synthesize viewController;

- (void) displayView:(int)intNewView {
    [viewController displayView:intNewView];
}
@end

当我在视图之间切换然后应用程序崩溃时，我正在收到内存警告。我的问题是，这是加载这些视图的正确方法吗？我已经发布了我在游戏生命周期中分配的所有内容，而现在我正在为记忆带来的东西感到茫然。任何帮助将不胜感激。

Answer 1

您没有正确发布游戏视图，因为您的代码在调用release之前实际上会将currentView设置为nil，这意味着您将泄漏所创建的每个游戏视图。

- (void)displayView :(int)intNewView
{
    currentViewId = intNewView;
    currentView = nil;
    [currentView release];
    switch (intNewView) {

你可能想要这样做：

- (void)displayView :(int)intNewView
{
    currentViewId = intNewView;
    [currentView release];
    currentView = nil;
    switch (intNewView) {

此外，您命名视图控制器“视图”是令人困惑的。考虑为它们提供更具描述性的名称，例如xxxController。

编辑1：

您还需要确保在发布之前从视图层次结构中删除旧游戏。在发布视图之前调用[currentView.view removeFromSuperview]以首先删除它。

如何通过重用单个viewcontroller并处理内存警告来加载xib？

1 个答案: