IOS程式開發之禁止輸入Emoji執行個體代碼_IOS

廢話不多說了，先給大家展示效果圖。

一，效果圖。

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:textoptions:0range:NSMakeRange(0, [text length])withTemplate:@""];return modifiedString;}