IOS开发之文本复制

本文基于富文本:DTCoreText

[cpp] 
#import <Foundation/Foundation.h>  
#import <MobileCoreServices/UTCoreTypes.h>//添加此框架  
 
@interface UIPasteboard (AttributedString) 
- (void) setAttributedString:(NSAttributedString *)attributedString; 
@end 

#import <Foundation/Foundation.h>
#import <MobileCoreServices/UTCoreTypes.h>//添加此框架

@interface UIPasteboard (AttributedString)
- (void) setAttributedString:(NSAttributedString *)attributedString;
@end

[cpp]
#import "UIPasteboard+AttributedString.h"  
 
@implementation UIPasteboard (AttributedString) 
- (void) setAttributedString:(NSAttributedString *)attributedString 
{ 
    //\ufffc为对象占位符，目的是当富文本中有图像时，只复制文本信息！！！  
    NSString *htmlString = [[attributedString string] stringByReplacingOccurrencesOfString:@"\ufffc" withString:@""]; 
    NSMutableDictionary *item = [NSMutableDictionary dictionaryWithCapacity:1]; 
    [item setValue:htmlString forKey:(NSString *)kUTTypeText]; 
    self.items = [NSArray arrayWithObject:item]; 
} 
@end 

#import "UIPasteboard+AttributedString.h"

@implementation UIPasteboard (AttributedString)
- (void) setAttributedString:(NSAttributedString *)attributedString
{
 //\ufffc为对象占位符，目的是当富文本中有图像时，只复制文本信息！！！
 NSString *htmlString = [[attributedString string] stringByReplacingOccurrencesOfString:@"\ufffc" withString:@""];
 NSMutableDictionary *item = [NSMutableDictionary dictionaryWithCapacity:1];
 [item setValue:htmlString forKey:(NSString *)kUTTypeText];
 self.items = [NSArray arrayWithObject:item];
}
@end

给要复制的视图添加长按事件：

[cpp] 
UILongPressGestureRecognizer *gestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longTap:)]; 
        [self.selectedBackgroundView addGestureRecognizer:gestureRecognizer]; 
        gestureRecognizer.minimumPressDuration = 1.0; 

UILongPressGestureRecognizer *gestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longTap:)];
  [self.selectedBackgroundView addGestureRecognizer:gestureRecognizer];
  gestureRecognizer.minimumPressDuration = 1.0;
[cpp]
- (void)longTap:(UILongPressGestureRecognizer *)ges 
{ 
    [self becomeFirstResponder]; 
    UIMenuController * menu = [UIMenuController sharedMenuController]; 
        //尺寸和添加到哪里  
    [menu setTargetRect: [self frame] inView: self.superView]; 
    [menu setMenuVisible: YES animated: YES]; 
} 

- (void)longTap:(UILongPressGestureRecognizer *)ges
{
 [self becomeFirstResponder];
 UIMenuController * menu = [UIMenuController sharedMenuController];
        //尺寸和添加到哪里
 [menu setTargetRect: [self frame] inView: self.superView];
 [menu setMenuVisible: YES animated: YES];
}

重写下面方法：

[cpp]
//是否截获事件响应  
- (BOOL)canBecomeFirstResponder 
{ 
    return YES; 
} 
 
//什么样的操作会被响应  
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender 
{ 
    return action == @selector(copy:); 
} 
 
- (void)copy:(id)sender 
{ 
    UIPasteboard *pasteboard = [UIPasteboard generalPasteboard]; 
    [pasteboard setAttributedString:@"此处是富文本，其他同理"]; 
} 

//是否截获事件响应
- (BOOL)canBecomeFirstResponder
{
    return YES;
}

//什么样的操作会被响应
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
 return action == @selector(copy:);
}

- (void)copy:(id)sender
{
    UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
    [pasteboard setAttributedString:@"此处是富文本，其他同理"];
}