iOS输入框过滤emoji表情
//// ViewController.m// test//// Created by 郭宇 on 13-11-15.// Copyright (c) 郭 宇. All rights reserved.//#import "ViewController.h"@implementation ViewController{IBOutlet UITextView *textinput;}- (void)viewDidLoad{[super viewDidLoad];[textinput setDelegate:self];}- (void)textViewDidChange:(UITextView *)textView{NSRange textRange = [textView selectedRange];[textView setText:[self disable_emoji:[textView text]]];[textView setSelectedRange:textRange];}- (NSString *)disable_emoji:(NSString *)text{NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[^\\u0020-\\u007E\\u00A0-\\u00BE\\u2E80-\\uA4CF\\uF900-\\uFAFF\\uFE30-\\uFE4F\\uFF00-\\uFFEF\\u0080-\\u009F\\u2000-\\u201f\r\n]" options:NSRegularExpressionCaseInsensitive error:nil];NSString *modifiedString = [regex stringByReplacingMatchesInString:textoptions:0range:NSMakeRange(0, [text length])withTemplate:@""];return modifiedString;}@end
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