在安卓TextView中去除表情符号(肤色)字符

import android.graphics.Typeface;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.SpannableStringBuilder;
import android.text.style.StyleSpan;
import android.widget.TextView;

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

public class MainActivity extends AppCompatActivity {

    private TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        textView = findViewById(R.id.textView);

        String text = "Hello, \uD83D\uDE00 how are you?"; // 包含表情符号的文本

        // 使用正则表达式匹配和替换表情符号字符
        Pattern pattern = Pattern.compile("[\\uD800-\\uDBFF][\\uDC00-\\uDFFF]");
        Matcher matcher = pattern.matcher(text);
        text = matcher.replaceAll("");

        // 使用SpannableStringBuilder处理文本
        SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(text);
        spannableStringBuilder.setSpan(new StyleSpan(Typeface.BOLD), 0, text.length(), 0);

        textView.setText(spannableStringBuilder);
    }
}