重用控件类代码的一个非常好的解决方案：所有一样的控件其名字均用同样的一个名字。只是在最后赋值的时候，将创建好的控件赋给我们需要用到的那个控件。- (id)initWithFrame:(CGRect)frame arrowImageName:(NSString *)arrow textColor:(UIColor *)textColor  {    if((self = [super initWithFrame:frame])) {                self.autoresizingMask = UIViewAutoresizingFlexibleWidth;        self.backgroundColor = [UIColor colorWithRed:226.0/255.0 green:231.0/255.0 blue:237.0/255.0 alpha:1.0];        UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, frame.size.height - 30.0f, self.frame.size.width, 20.0f)];        label.autoresizingMask = UIViewAutoresizingFlexibleWidth;        label.font = [UIFont systemFontOfSize:12.0f];        label.textColor = textColor;        label.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];        label.shadowOffset = CGSizeMake(0.0f, 1.0f);        label.backgroundColor = [UIColor clearColor];        label.textAlignment = UITextAlignmentCenter;        [self addSubview:label];        _lastUpdatedLabel=label;        [label release];                label = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, frame.size.height - 48.0f, self.frame.size.width, 20.0f)];        label.autoresizingMask = UIViewAutoresizingFlexibleWidth;        label.font = [UIFont boldSystemFontOfSize:13.0f];        label.textColor = textColor;        label.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];        label.shadowOffset = CGSizeMake(0.0f, 1.0f);        label.backgroundColor = [UIColor clearColor];        label.textAlignment = UITextAlignmentCenter;        [self addSubview:label];        _statusLabel=label;        [label release];