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此代码的目标是自动创建一个对象并为其设置动画以在屏幕上移动。一旦它在 120 处达到 x,则将其删除。我面临的问题是我无法从数组中的对象中获取框架和 x 值。这是我的代码,有什么建议吗?

- (void)AddRight{

Bullets= [[NSMutableArray alloc] init];
CGRect frame = CGRectMake(480, 180, 60, 55);
Bullets = [[UIImageView alloc] initWithFrame:frame];
Bullets.image=[UIImage imageNamed:@"Bullet.png"];
[self.view addSubview:Bullets];

[Bullets addObject:theBullet];
for (int x = 0; x < [Bullets count]; x++) {
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:1.5];
    [UIView setAnimationCurve:UIViewAnimationCurveLinear];
    [UIView setAnimationDelegate:self];
    [theBullet setFrame:CGRectMake(265, 180, 60, 55)];
    [UIView commitAnimations];
}

并且检测在这里:

for (int x = 0; x < [Bullets count]; x++) {
        NSObject *bull = [[LeftBees objectAtIndex:x]];
       CGRect frame = bull.frame;
        if (frame.origin.x>120) {
            [bull removeFromSuperview];
        }
    }

“CGRect 框架 = referal.frame;” 有错误说“属性框架不是 NSObject 的一部分”

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