如何显示给定Android设备支持的所有MIME类型的列表？

import android.content.pm.PackageManager;
import android.content.pm.PackageManager.MimeGroup;
import android.os.Bundle;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

import java.util.List;

public class MainActivity extends AppCompatActivity {

    private TextView mimeTypesTextView;

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

        mimeTypesTextView = findViewById(R.id.mimeTypesTextView);

        PackageManager packageManager = getPackageManager();
        List<MimeGroup> mimeGroups = packageManager.getMimeTypes(null);

        StringBuilder stringBuilder = new StringBuilder();
        for (MimeGroup mimeGroup : mimeGroups) {
            String mimeType = mimeGroup.getMimeType();
            List<String> extensions = mimeGroup.getExtensions();

            stringBuilder.append("MIME Type: ").append(mimeType).append("\n");
            stringBuilder.append("Extensions: ").append(extensions.toString()).append("\n\n");
        }

        mimeTypesTextView.setText(stringBuilder.toString());
    }
}