2016.11.8
- (void)textViewDidChange:(UITextView*)textView{
if(textView.text.length>0) {
//禁止系统表情的输入
NSString*text = [selfdisable_emoji:[textViewtext]];
if(![textisEqualToString:textView.text]) {
NSRangetextRange = [textViewselectedRange];
textView.text= text;
[textViewsetSelectedRange:textRange];
}
//解决限制字数的条件下，中文联想还可以继续输入的问题
NSIntegerlength= textView.text.length;
if(length >100) {
NSString*memo = [textView.textsubstringWithRange:NSMakeRange(0,100)];
self.feedbackContentTextView.text= memo;
}
}
}
//限制Emoji表情的输入
- (NSString*)disable_emoji:(NSString*)text{
NSRegularExpression*regex = [NSRegularExpressionregularExpressionWithPattern:@"[^\\u0020-\\u007E\\u00A0-\\u00BE\\u2E80-\\uA4CF\\uF900-\\uFAFF\\uFE30-\\uFE4F\\uFF00-\\uFFEF\\u0080-\\u009F\\u2000-\\u201f\r\n]"options:NSRegularExpressionCaseInsensitiveerror:nil];
NSString*modifiedString = [regexstringByReplacingMatchesInString:textoptions:0range:NSMakeRange(0, [textlength])withTemplate:@""];
returnmodifiedString;
}
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