【代碼筆記】禁止輸入Emoji，代碼筆記Emoji

【代碼筆記】禁止輸入Emoji，代碼筆記Emoji

一，。

二，工程圖。

三，代碼。

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController<UITextViewDelegate>@end

 

RootViewController.m

- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        //初始化背景    [self addView];}#pragma -mark -functions-(void)addView{    UITextView *textView=[[UITextView alloc]initWithFrame:CGRectMake(50, 100, 200, 50)];    textView.backgroundColor=[UIColor redColor];    textView.delegate=self;    [self.view addSubview:textView];}#pragma -mark -UITextViewDelegate- (void)textViewDidChange:(UITextView *)textView{    NSRange textRange = [textView selectedRange];    [textView setText:[self disable_emoji:[textView text]]];    [textView setSelectedRange:textRange];}//禁止輸入表情- (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:text                                                               options:0                                                                 range:NSMakeRange(0, [text length])                                                          withTemplate:@""];    return modifiedString;}