Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
466 views
in Technique[技术] by (71.8m points)

uitextfield - iphone bullet point list

Is there any way to make a bullet point list in iphone?

If you copy and paste a bullet point list into a UITextView in IB then it shows up. Is there anyway to do this programatically?

Thank you

Tom

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

The "bullet" character is at Unicode code point U+2022. You can use it in a string with @"u2022" or [NSString stringWithFormat:@"%C", 0x2022].

The "line feed" character is at Unicode code point U+000A, and is used as UIKit's newline character. You can use it in a string with @" ".

For example, if you had an array of strings, you could make a bulleted list with something like this:

NSArray * items = ...;
NSMutableString * bulletList = [NSMutableString stringWithCapacity:items.count*30];
for (NSString * s in items)
{
  [bulletList appendFormat:@"u2022 %@
", s];
}
textView.text = bulletList;

It won't indent lines like a "proper" word processor. "Bad things" will happen if your list items include newline characters (but what did you expect?).

(Apple doesn't guarantee that "uXXXX" escapes work in NSString literals, but in practice they do if you use Apple's compiler.)


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...