我需要在 UIImageView 上设置一个具有自定义背景颜色的标签。问题是我希望它的宽度与图像视图中的图像完全相同。这是到目前为止的代码:
UIImageView *pictureV = [[UIImageView alloc] initWithFrame:CGRectMake(pictureX, 0, pictureSize.width, pictureSize.height)];
pictureV.image = self.picture.image;
pictureV.contentMode = UIViewContentModeScaleAspectFit;
和标签:
UILabel *lblName = [[UILabel alloc]init];
lblName.backgroundColor=[UIColor colorWithRed:0.5 green:0.5 blue:0.5 alpha:0.6];
lblName.frame = CGRectMake(pictureV.bounds.origin.x, pictureV.bounds.origin.y + pictureV.bounds.size.height - 30, self.picture.image.size.width, 30);
[lblName setText:self.pictureNote.text];
[lblName setTextAlignment:UITextAlignmentCenter];
[lblName setTextColor:[UIColor whiteColor]];
[pictureV addSubview:lblName]
将 contentMode 设置为 UIViewContentModeScaleAspectFit 时,某些图像比我的 UIImageView 小,我似乎无法使标签的宽度大小相同。