2016.11.8
- (void)textViewDidChange:(UITextView*)textView{
if(textView.text.length>0) {
//禁止系統(tǒng)表情的輸入
NSString*text = [selfdisable_emoji:[textViewtext]];
if(![textisEqualToString:textView.text]) {
NSRangetextRange = [textViewselectedRange];
textView.text= text;
[textViewsetSelectedRange:textRange];
}
//解決限制字?jǐn)?shù)的條件下，中文聯(lián)想還可以繼續(xù)輸入的問題
NSIntegerlength= textView.text.length;
if(length >100) {
NSString*memo = [textView.textsubstringWithRange:NSMakeRange(0,100)];
self.feedbackContentTextView.text= memo;
}
}
}
//限制Emoji表情的輸入
- (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;
}
