Question

目标： 我有一个专为儿童设计的游戏。所有级别都有单词族，每个单词族都有一定数量的相关活动。

每个级别都有我称之为“菜单” - 当孩子到达此菜单时，他们将点击“播放”按钮，将他们带到下一个活动。完成此活动后，他们不再能够返回到它并且星形出现在按钮所用的位置。如果活动尚未解锁，则孩子将看不到该活动的按钮。

这是一个直观的表示：

我的更新代码:(由于DonMag指出的错误而更改后）

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    // Get place entity for current level
    entity = [[UserEntity sharedEntity] placeEntityForLevel:[LevelObject currentLevel]];
    NSInteger level = [LevelObject currentLevel] + 1;
    // Load menu view corresponding to current level from its NIB.
    NSString *nibName = [NSString stringWithFormat:@"%li",(long)level];
    NSArray *nibViews = [[NSBundle mainBundle] loadNibNamed:nibName owner:self options:nil];
    levelView = [nibViews firstObject];
    [levelView setFrame:self.view.bounds];
    [self.view addSubview:levelView];
    [self setMenuView:levelView];
    // Hide all menu item views.
    int i = 1;
    for (UIButton *view in levelView.subviews) {
        if ([view isKindOfClass:[UIButton class]])
        {
            view.hidden = true;
            view.userInteractionEnabled = false;
            // Populate star image views with images.
            NSString *imagePath = [NSString stringWithFormat:@"pictures/%dstar.png",i];
            [view setBackgroundImage:[UIImage imageNamed:imagePath] forState:UIControlStateDisabled];
            i++;
            i = i * (i <= 5);
        }
    }
    }

-(void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    // Get an array of all menu item views for activities up to, and including, the current activity.
    NSInteger placeTag = entity.familyNum * 10 + entity.activityNum;
    NSPredicate *filteringPredicate = [NSPredicate predicateWithBlock:^BOOL(id obj1,NSDictionary *dictionary) {
        return [obj1 isKindOfClass:[UIButton class]];
    }];
    NSArray *filteredViews = [levelView.subviews filteredArrayUsingPredicate:filteringPredicate];
    // Loop through all views for activities up to, and including, current activity.
    for (int representedFamily = 0; representedFamily <= entity.familyNum; representedFamily++) {
        for (int representedActivity = 0; representedActivity <= entity.activityNum; representedActivity++)
        {
            NSInteger thisViewTag = representedFamily * 10 + representedActivity; // Tag of the view corresponding to represented family and activity.
            // Find view with thisViewTag
            UIButton *thisView = [[filteredViews filteredArrayUsingPredicate:[NSPredicate predicateWithBlock:^BOOL(MenuItemView *view, NSDictionary *dictionary) {
                return view.tag == thisViewTag;
            }]] firstObject];
            NSAssert(thisView != levelView, @"levelView is thisView - change levelView's tag");
            thisView.hidden = false;
            if (thisViewTag == placeTag) {
                // Current activity
                currentActivityTag = thisViewTag;
                thisView.enabled = true;
                thisView.hidden = false;
                [thisView addTarget:self action:@selector(activityButtonPressed:) forControlEvents:UIControlEventTouchDown];
            }
            else
            {
                // Past activity
                thisView.enabled = false;
                // Assert that star is not hidden.
                assert(thisView.hidden == false);
            }
        }
    }
}

问题：

即使在活动完成后，某些明星也不一定会出现。

我尝试解决方案：

我已经尝试将代码放在viewWillAppear中。我已经重新安装了Xcode并运行了“Clean Build Folder”

可能不是解决方案： 创建familyNum和activityNum属性，并使用这些属性而不是标签 - 最多有3个活动。

我想到的其他人： 只需绕过UIViews并直接绘制到屏幕上（ew）

更新（6月6日）：我在“if thisViewTag == placeTag”中添加了一个断点，另一个在“else”语句中添加了断点;这些导致应用程序停止所有星星，除了那些没有显示的星星。我的调试器还显示我的filteredArray具有它需要的所有按钮。

Answer 1

我修好了！

问题是双重的。第一：

1）我有比星星更多的子视图。在一定次数的迭代后重置“i”计数器有帮助。 2）表示活动的我的for循环未能解决表示活动＆gt;的情况。 entity.activityNum但entity.familyNum＆gt; representedFamily。

一些星形图像消失（或者只是不显示）我该如何解决这个问题？

1 个答案: