I'm trying to have a UIlabel with an image and title on the left and a list of descriptions with bullets on the right.
To do that I'm using NSAttributedString like this :
NSMutableParagraphStyle *pStyle = [[NSMutableParagraphStyle alloc] init];
pStyle.tabStops =
@[ [[NSTextTab alloc] initWithTextAlignment:NSTextAlignmentLeft location:tabLocation options:[NSDictionary dictionary]] ];
NSMutableAttributedString *attString = [[NSMutableAttributedString alloc] init];
NSTextAttachment *textAttachment = [[NSTextAttachment alloc] init];
textAttachment.image = [UIImage imageNamed:@"test_image"];
textAttachment.bounds = CGRectMake(0, -3, 15, 15);//resize the image
attString = [NSAttributedString attributedStringWithAttachment:textAttachment].mutableCopy;
[attString appendAttributedString:[[NSAttributedString alloc]
initWithString:[NSString stringWithFormat:@"title\t\u2022 %@",
[@[ @"description1", @"description2" ]
componentsJoinedByString:@"\n\t\u2022 "]]
attributes:@{NSParagraphStyleAttributeName : pStyle}]];
label.attributedText = attString;
I expect the list on the right to be left aligned but that's not the case, here is the result I get:
What I expect is the list to be aligned like this:
The issue is with location
parameter in NSTextTab
According to description, location
parameter helps to position text from left margin. So this is what we needed, just replace below lines
pStyle.tabStops = @[ [[NSTextTab alloc] initWithTextAlignment:NSTextAlignmentLeft location:tabLocation options:[NSDictionary dictionary]] ];
with
pStyle.tabStops = @[[[NSTextTab alloc] initWithTextAlignment:NSTextAlignmentLeft location:[self getTextLocationFor:@"test"] options:[NSDictionary dictionary]] ];
Add getTextLocationFor:
method to calculate location as follows
-(CGFloat)getTextLocationFor:(NSString *)inputStr{
CGSize maximuminputStringWidth = CGSizeMake(FLT_MAX, 30);
CGRect textRect = [inputStr boundingRectWithSize:maximuminputStringWidth
options:NSStringDrawingUsesLineFragmentOrigin
attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15]}
context:nil];
UIImageView * testImage = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"close_red"]];//Change image name with yours
return textRect.size.width + testImage.frame.size.width +2;
}
That's it we are ready to go run your project now everything will be fine.
RESULT:
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