【Android】【输入校验】输入框(EditText)过滤 Emoji 表情

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import android.text.InputFilter;
import android.text.Spanned;
import android.util.Log;

public class EmojiFilter implements InputFilter {

private static final String TAG = "EmojiFilter";

private Pattern mEmojiPattern = Pattern.compile("[\ud83c\udc00-\ud83c\udfff]|[\ud83d\udc00-\ud83d\udfff]|[\u2600-\u27ff]", Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE);

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
Matcher emojiMatcher = mEmojiPattern.matcher (source) ;

if (emojiMatcher.find( )) {
Log.d(TAG, "source: " + source.toString() + " is match.");
return "";
}
return source;
}

}

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EditText.setFilters(new InputFilter[]{new EmojiFilter()})