Question

我有一个自定义视图（UIView的子类），我想在其中显示UIImageView和几个UILabel。 imageView与FaceBook异步，标签从特定方法获取文本。问题是即使imageView在到达时成功呈现，也不会显示标签。我来告诉你代码

@interface CustomView : UIView {

    UIImageView *imageView;
    UILabel *lbl1;
    UILabel *lbl2;
    UILabel *lbl3;
    UILabel *lbl4;
}

@property(nonatomic,retain) UIImageView *imageView;
@property(nonatomic,retain) UILabel *lbl1;
@property(nonatomic,retain) UILabel *lbl2;
@property(nonatomic,retain) UILabel *lbl3;
@property(nonatomic,retain) UILabel *lbl4;

实施如下：

@implementation CustomView

@synthesize imageView;
@synthesize lbl1;
@synthesize lbl2;
@synthesize lbl3;
@synthesize lbl4;

- (id)initWithFrame:(CGRect)frame
{
    if ((self = [super initWithFrame:frame]))
    {
        self.lbl1 = [[UILabel alloc] initWithFrame:CGRectMake(65, 356, 98, 13)];
        self.lbl1.backgroundColor = [UIColor clearColor];
        [self addSubview:self.lbl1];

        self.lbl2 = [[UILabel alloc] initWithFrame:CGRectMake(260, 356, 50, 13)];
        self.lbl2.backgroundColor = [UIColor clearColor];
        [self addSubview:self.lbl2];

        self.lbl3 = [[UILabel alloc] initWithFrame:CGRectMake(65, 374, 92, 13)];
        self.lbl3.backgroundColor = [UIColor clearColor];
        [self addSubview:self.lbl3];

        self.lbl4 = [[UILabel alloc] initWithFrame:CGRectMake(260, 374, 49, 13)];
        self.lbl4.backgroundColor = [UIColor clearColor];
        [self addSubview:self.lbl4];
    }
    return self;
}

请注意，标签矩形是硬编码的，为方便起见而不匹配。设置标签文本的方法示例如下：

- (void)showLbl1:(NSString *)str withFont:(UIFont *)font andColor:(UIColor *)color
{
    self.lbl1.font = font;
    self.lbl1.textColor = [UIColor cyanColor];
    [self.lbl1 setText:str];
}

图像通过performSelectorInBackground运行的方法传递，并使用performSelectorOnMainThread运行的方法绘制。最后，整个视图由superView中的addSubView添加。

提前完成

Answer 1

尝试绘制标签边框并查看它们的位置...还要检查你在那里的超级泄漏，你有一个alloc init并且永远不会释放标签并且还使用setter，所以你正在做一个双重alloc init。

UILabels没有显示在UIView的子类中

1 个答案: