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IOS开发之文本复制

2013-08-19 11:03 260 查看
原始地址:IOS开发之文本复制

本文基于富文本:DTCoreText

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

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

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

- (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:

//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"];
}
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标签:  IOS