java - 错误 : an enum switch case label must be the unqualified name of an enumeration constant

Question

error: an enum switch case label must be the unqualified name of an enumeration constant error: duplicate case label

没有编译，帮帮我!

public class CardViewStyleSetting extends ThemedSetting {

    public CardViewStyleSetting(ThemedActivity activity) {
        super(activity);
    }

    public void show() {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), getActivity().getDialogStyle());
        final View dialogLayout = LayoutInflater.from(getActivity()).inflate(R.layout.dialog_album_card_style, null);

        TextView dialogTitle = dialogLayout.findViewById(R.id.dialog_card_view_style_title);
        ((CardView) dialogLayout.findViewById(R.id.dialog_card_view_style)).setCardBackgroundColor(getActivity().getCardBackgroundColor());
        dialogTitle.setBackgroundColor(getActivity().getPrimaryColor());

        final RadioGroup rGroup = dialogLayout.findViewById(R.id.radio_group_card_view_style);
        final CheckBox chkShowMediaCount = dialogLayout.findViewById(R.id.show_media_count);
        final CheckBox chkShowAlbumPath = dialogLayout.findViewById(R.id.show_album_path);
        RadioButton rCompact = dialogLayout.findViewById(R.id.radio_card_compact);
        RadioButton rFlat = dialogLayout.findViewById(R.id.radio_card_flat);
        RadioButton rMaterial = dialogLayout.findViewById(R.id.radio_card_material);

        chkShowMediaCount.setChecked(Prefs.showMediaCount());
        chkShowAlbumPath.setChecked(Prefs.showAlbumPath());

        getActivity().themeRadioButton(rCompact);
        getActivity().themeRadioButton(rFlat);
        getActivity().themeRadioButton(rMaterial);
        getActivity().themeCheckBox(chkShowMediaCount);
        getActivity().themeCheckBox(chkShowAlbumPath);

        rGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup radioGroup, int i) {
                final View v;
                switch (i) {
                    case R.id.radio_card_compact:
                        v = LayoutInflater.from(getActivity()).inflate(CardViewStyle.COMPACT.getLayout(), null);
                        v.findViewById(R.id.ll_album_info).setBackgroundColor(ColorPalette.getTransparentColor(getActivity().getBackgroundColor(), 150));
                        break;
                    case R.id.radio_card_flat:
                        v = LayoutInflater.from(getActivity()).inflate(CardViewStyle.FLAT.getLayout(), null);
                        v.findViewById(R.id.ll_album_info).setBackgroundColor(ColorPalette.getTransparentColor(getActivity().getBackgroundColor(), 150));
                        break;
                    case R.id.radio_card_material: default:
                        v = LayoutInflater.from(getActivity()).inflate(CardViewStyle.MATERIAL.getLayout(), null);
                        v.findViewById(R.id.ll_album_info).setBackgroundColor(getActivity().getCardBackgroundColor());
                        break;
                }

                ImageView img = v.findViewById(R.id.album_preview);
                img.setBackgroundColor(getActivity().getPrimaryColor());

                Glide.with(getActivity())   
    .load(R.drawable.donald_header)
                        .into(img);
String hexPrimaryColor = ColorPalette.getHexColor(getActivity().getPrimaryColor());
                String hexAccentColor = ColorPalette.getHexColor(getActivity().getAccentColor());

                if (hexAccentColor.equals(hexPrimaryColor))
                    hexAccentColor = ColorPalette.getHexColor(ColorPalette.getDarkerColor(getActivity().getAccentColor()));

                String textColor = getActivity().getBaseTheme().equals(Theme.LIGHT) ? "#2B2B2B" : "#FAFAFA";
                String albumPhotoCountHtml = "<b><font color='" + hexAccentColor + "'>420</font></b>";

                ((TextView) v.findViewById(R.id.album_media_count)).setText(StringUtils.html(albumPhotoCountHtml));
                ((TextView) v.findViewById(R.id.album_media_label)).setTextColor(getActivity().getTextColor());
                ((TextView) v.findViewById(R.id.album_path)).setTextColor(getActivity().getSubTextColor());

                v.findViewById(R.id.ll_media_count).setVisibility( chkShowMediaCount.isChecked() ? View.VISIBLE : View.GONE);
                chkShowMediaCount.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                    @Override
                    public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                        v.findViewById(R.id.ll_media_count).setVisibility(b ? View.VISIBLE : View.GONE);
                    }
                });

                v.findViewById(R.id.album_path).setVisibility( chkShowAlbumPath.isChecked() ? View.VISIBLE : View.GONE);
                chkShowAlbumPath.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                    @Override
                    public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                        v.findViewById(R.id.album_path).setVisibility(b ? View.VISIBLE : View.GONE);
                    }
                });

                ((TextView) v.findViewById(R.id.album_name)).setText(StringUtils.html("<i><font color='" + textColor + "'>PraiseDuarte</font></i>"));
                ((TextView) v.findViewById(R.id.album_path)).setText("~/home/PraiseDuarte");

                ((CardView) v).setUseCompatPadding(true);
                ((CardView) v).setRadius(2);

                ((LinearLayout) dialogLayout.findViewById(R.id.ll_preview_album_card)).removeAllViews();
                ((LinearLayout) dialogLayout.findViewById(R.id.ll_preview_album_card)).addView(v);
            }
        });

        switch (Prefs.getCardStyle()) {
            case CardViewStyle.COMPACT: rCompact.setChecked(true); break;
            case CardViewStyle.FLAT: rFlat.setChecked(true); break;
            case CardViewStyle.MATERIAL: default: rMaterial.setChecked(true); break;
        }

        builder.setNegativeButton(getActivity().getString(R.string.cancel).toUpperCase(), null);
        builder.setPositiveButton(getActivity().getString(R.string.ok_action).toUpperCase(), new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                CardViewStyle cardViewStyle;
                switch (rGroup.getCheckedRadioButtonId()) {
                    case R.id.radio_card_material:
                    default:
                        cardViewStyle = CardViewStyle.MATERIAL;
                        break;
                    case R.id.radio_card_flat:
                        cardViewStyle = CardViewStyle.FLAT;
                        break;
                    case R.id.radio_card_compact:
                        cardViewStyle = CardViewStyle.COMPACT;
                        break;
                }
                Prefs.setCardStyle(cardViewStyle);
                Prefs.setShowMediaCount(chkShowMediaCount.isChecked());
                Prefs.setShowAlbumPath(chkShowAlbumPath.isChecked());
                Toast.makeText(getActivity(), getActivity().getString(R.string.restart_app), Toast.LENGTH_SHORT).show();
            }
        });
        builder.setView(dialogLayout);
        builder.show();
    }
}

Answer 1

根据 Java 文档

The Identifier in a EnumConstant may be used in a name to refer to the enum constant.

所以我们只需要在枚举的情况下使用名称。

改成这个

switch (Prefs.getCardStyle()) {
    case COMPACT: rCompact.setChecked(true); break;
    case FLAT: rFlat.setChecked(true); break;
    case MATERIAL: default: rMaterial.setChecked(true); break;
}