如何将RTLabel放在iOS映像上？

Question

I am trying to use https://github.com/honcheng/RTLabel to get a rich text label, but my immediate goal is to display "Hello, world!"

My code is:

        UIImageView *noteImage = [[UIImageView alloc] initWithFrame:bounds];
        noteImage.image = image;
        [self.view addSubview:noteImage];
        CJSHCardView *noteView = [[CJSHCardView alloc] initWithImage:image];
        [noteView setFrame:CGRectMake(100 * i, 20, 100 * scale, 100 * scale)];
        noteView.transform = CGAffineTransformScale(noteView.transform, scale_x, scale_y);
        NSString *text = @"Hello, world!";
        RTLabel *label = [[RTLabel alloc] initWithFrame:CGRectMake(100 * i, 20, 100 * scale, 100 * scale)];
        [noteImage addSubview:label];
        [label setText:text];

I tried both noteImage and noteView in the second-to-last line. The rectangle has the same dimensions as the original image, which is displaying correctly. However, none of the approaches I've tried seem apt to display a label on top of the noteImage / noteView as backgrounds.

What is an appropriate way to get a label (preferably one that supports rich text) to display on top of an image meant to serve as background for it?

Answer 1

iOS 7的UILabel支持属性字符串，因此，除非您需要定位较早的版本，否则建议您仅在界面生成器中构建UI并根据代码中的需要设置属性文本。