ClipboardManager在安卓Q上不起作用，有什么解决办法吗？

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_CODE);
}

ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
ClipData clip = ClipData.newPlainText("label", "text");
clipboard.setPrimaryClip(clip);

@Override
protected void onResume() {
    super.onResume();
    ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
    ClipData clip = ClipData.newPlainText("label", "text");
    clipboard.setPrimaryClip(clip);
}

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
    NotificationChannel channel = new NotificationChannel("clipboard_channel", "Clipboard Service", NotificationManager.IMPORTANCE_LOW);
    NotificationManager manager = getSystemService(NotificationManager.class);
    manager.createNotificationChannel(channel);

    Notification notification = new NotificationCompat.Builder(this, "clipboard_channel")
            .setContentTitle("Clipboard Service")
            .setSmallIcon(R.drawable.ic_notification)
            .build();

    startForeground(1, notification);
}

import android.Manifest;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private static final int REQUEST_CODE = 100;

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

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_CODE);
        } else {
            copyToClipboard("Hello, World!");
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == REQUEST_CODE && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            copyToClipboard("Hello, World!");
        } else {
            Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show();
        }
    }

    private void copyToClipboard(String text) {
        ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
        ClipData clip = ClipData.newPlainText("label", text);
        clipboard.setPrimaryClip(clip);
        Toast.makeText(this, "Text copied to clipboard", Toast.LENGTH_SHORT).show();
    }
}