未解析的引用layoutInflater安卓视图绑定

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

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

        // 获取 LayoutInflater
        LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        // 加载布局文件
        View customView = inflater.inflate(R.layout.custom_layout, null);

        // 获取布局中的控件
        TextView textView = customView.findViewById(R.id.textView);
        Button button = customView.findViewById(R.id.button);

        // 设置控件内容
        textView.setText("Hello, World!");
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                textView.setText("Button Clicked!");
            }
        });

        // 将自定义视图添加到当前布局
        ViewGroup rootView = findViewById(android.R.id.content);
        rootView.addView(customView);
    }
}