RadioGroup onCheckedChangeListener上的错误

Question

我正在创建一个自定义对话框片段，里面有一个radioGroup。我在线路上出现了一个错误

rdoGrp.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener()

public class layoutChooserFragment extends DialogFragment {
    Context ctx;
    String rdo;
    public layoutChooserFragment(){

    }
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState){
        View vi = inflater.inflate(R.layout.layout_picker, container);
        getDialog().setTitle(R.string.txtLayoutChooser);

        final CheckBox cboRemember = (CheckBox)vi.findViewById(R.id.cboRemember);
        RadioGroup rdoGrp = (RadioGroup)vi.findViewById(R.id.rdoGrpPckr);
        final RadioButton rdoGrid = (RadioButton)vi.findViewById(R.id.rdoGrid);
        final RadioButton rdoTab   = (RadioButton)vi.findViewById(R.id.rdoTab);
        rdoGrp.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                if (rdoTab.isChecked()) {
                    if (cboRemember.isChecked()) {
                        rdo = "tab";
                        SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(ctx);
                        SharedPreferences.Editor editor = settings.edit();
                        editor.putString("chosenLayout", rdo);
                        editor.commit();
                        Log.d("tag", "chosenLayout: " + rdo);
                    }
                    Intent i = new Intent(ctx, MainActivity.class);
                    startActivity(i);
                } else if (rdoGrid.isChecked()) {
                    if (cboRemember.isChecked()) {
                        Intent i = new Intent(ctx, main2.class);
                        startActivity(i);
                        rdo = "grid";
                        SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(ctx);
                        SharedPreferences.Editor editor = settings.edit();
                        editor.putString("chosenLayout", rdo);
                        editor.commit();
                        Log.d("tag", "chosenLayout: " + rdo);
                    }
                    Intent i = new Intent(ctx, servicesGridStyle.class);
                    startActivity(i);
                }
            }
        });
        //dlg.show();
        return vi;

    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp">

<RadioGroup
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/rdoGrpPckr">

    <RadioButton
        android:paddingLeft="5dp"
        android:paddingRight="5dp"
        android:button="@null"
        android:drawableRight="@android:drawable/btn_radio"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/txtTab"
        android:id="@+id/rdoTab"
        android:textSize="29sp" />

    <RadioButton
        android:paddingLeft="5dp"
        android:paddingRight="5dp"
        android:button="@null"
        android:drawableRight="@android:drawable/btn_radio"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/txtGrid"
        android:id="@+id/rdoGrid"
        android:textSize="29sp" />
</RadioGroup>

<CheckBox
    android:paddingLeft="5dp"
    android:paddingRight="5dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="@string/txtRememberChoice"
    android:id="@+id/cboRemember"
    android:textSize="20sp" />
</LinearLayout>

Answer 1

你必须使用

rdoGrp.setOnCheckedChangeListener(new OnCheckedChangeListener() {}

而不是

rdoGrp.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {}