是否可以在NSString之间插入Image？ [英] Is it possible to insert Image between NSString?

问题描述

我正在开发一个基于产品的应用程序，其中显示产品名称以及价格协议或法令。

I am working on a product based application in which it shows product name with price increement or decreement.

截至目前，根据我的要求，我正在插入一个UIImage作为UILabel的子视图。但每当我需要计算产品名称长度时，我就会在其中定义UIImage的x位置并一次又一次地添加它。产品名称的大小可变。

As of now, according to my requirement I am inserting a UIImage as a subview to UILabel.But its everytime I need to calculate product name length on which I am defining x position of UIImage and adding it again and again.Product name is of variable size.

根本没有时候图像的x位置无法正确设置，因此它与UILabel上的文本重叠。我遇到了这个问题。

Not at all sometimes x position of image could not set properly so it overlaps text on UILabel.I stucked with this problem.

以下是我的努力被解雇关于这样的要求。可能应该有另一种方法来做这些事情，但我不知道。我可以申请其他任何替代方案吗？

Below is my effort fired on such requirement.May be there should be another way to do such things but I don't know.Any other alternative I can apply?

int level=3;
NSString *product=@"Pea Price:";

UIImageView *imgView=[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 20, 25)];
[imgView setImage:[UIImage imageNamed:@"up.png"]];

CGRect rect=[imgView frame];

UILabel *label=[[UILabel alloc] initWithFrame:CGRectMake(20, 70, 200, 30)];
label.backgroundColor=[UIColor whiteColor];

CGSize size=[product sizeWithFont:label.font constrainedToSize:CGSizeMake(MAXFLOAT, 30) lineBreakMode:NSLineBreakByTruncatingTail];
rect.origin.x=size.width-5;
[imgView setFrame:rect];

label.text=[NSString stringWithFormat:@"%@  (%i%%)",product,level];
[label addSubview:imgView];
[self.view addSubview:label];

推荐答案

你可以这样使用

label.text=[NSString stringWithFormat:@"%@ ⬆\uFE0E (%i%%)",product,level];
label.text=[NSString stringWithFormat:@"%@ ⬇\uFE0E (%i%%)",product,level];

只需将此箭头图像复制并粘贴到NSString。

just copy and paste this arrow image to NSString.

更改标签的foreColor将更改箭头颜色。

Change foreColor of label will change the arrow color.

从此处获取要粘贴的其他图像

get Other Images to paste from here

箭头 - http://www.alanwood.net/unicode/ miscellaneous_symbols_and_arrows.html

循环数字 - http://www.alanwood.net/unicode/enclosed_alphanumerics.html

图片 - http://www.alanwood.net/unicode/miscellaneous_symbols.html

微笑 - http://www.alanwood.net/unicode/emoticons.html

Miscallaneous - http://www.alanwood.net/unicode/miscellaneous-symbols-and-pictographs.html

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