是否可以在弹出窗口中使用 ActionBar

如何解决是否可以在弹出窗口中使用 ActionBar

在我扩展 ListFragment 的类中，我有一个弹出窗口，当我单击一个按钮时会显示该窗口。我的问题是我不知道是否可以在其中使用 ActionBar。我的意思是我想要一个后退箭头，当它被点击时它应该关闭（关闭）弹出窗口。我的意思是：像这样：

    toolbar = findViewById(R.id.tool_bar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setTitle("Enter transaction");
    getSupportActionBar().setdisplayHomeAsUpEnabled(true);

这样的功能是否可行？或者我应该使用可自定义的工具栏和添加的 ImageView 使用设置侦听器来关闭弹出窗口？或者我应该创建自定义对话框？

我附上一个文件，其中显示了我现在拥有的以及我想要实现的目标。 image

这是我班级的片段

public class LastTransactionsFragment extends ListFragment implements,View.OnClickListener{

    //popupWindow
    private View popupView;
    private Button chooseTransactionDate;
    private Button choosetodayTomorrow;
    private RadioGroup chooseTransactionType;
    private RadioButton chosenTransactionExpense;
    private RadioButton chosenTransactionIncome;
    private ImageView transactionCategoryImage;
    private Spinner chooseTransactionCategory;
    private EditText chooseTransactionAmount;
    private EditText chooseTransactionName;
    private Button saveTransactionButton;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @RequiresApi(api = Build.VERSION_CODES.N)
    @Override
    public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.fragment_last_transactions,container,false);

        addTransactionActionButton = view.findViewById(R.id.add_transaction_action_button);
        addTransactionActionButton.setonClickListener(this);

        return view;
    }


    @RequiresApi(api = Build.VERSION_CODES.N)
    @Override
    public void onClick(View v) {
        switch (v.getId()) {

            case R.id.add_transaction_action_button: {
                // inflate the layout of the popup window
                LayoutInflater inflater = (LayoutInflater) getActivity().getSystemService(LAYOUT_INFLATER_SERVICE);
                popupView = inflater.inflate(R.layout.activity_transaction,null);

                PopupWindow popupWindow = new PopupWindow(popupView,565,760,true);
                popupWindow.showAtLocation(popupView,Gravity.CENTER,0);

                Toolbar toolbar = popupView.findViewById(R.id.tool_bar);
                toolbar.setTitleTextColor(Color.WHITE);
                toolbar.setTitle("New transaction");

                int currentDay = 1;
                int currentMonth = Integer.parseInt(actualChosenMonth.getText().toString().substring(0,2)) - 1;
                int currentYear = Integer.parseInt(actualChosenMonth.getText().toString().substring(3,7));
                SimpleDateFormat simpledateformat = new SimpleDateFormat("EE");
                Date date = new Date(currentYear,currentMonth,currentDay - 1);
                String currentDayOfWeek = simpledateformat.format(date);
                String currentDateAsstring = convertDatetoString(currentDay,currentYear,currentDayOfWeek);

                chooseTransactionDate = popupView.findViewById(R.id.chooseTransactionDate);
                chooseTransactionDate.setText(currentDateAsstring);
                chooseTransactionDate.setonClickListener(this);

//I cut rest of of listener 

                saveTransactionButton = popupView.findViewById(R.id.saveTransactionButton);
                saveTransactionButton.setonClickListener(this);
                break;
            }


            default:
                break;
        }
    }

这是我的布局文件（带有自定义工具栏）

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/bacgroundColorPopup"
    tools:context=".TransactionActivity">

    <include
        android:id="@+id/tool_bar"
        layout="@layout/tool_bar" />

    <Button
        android:id="@+id/saveTransactionButton"
        android:layout_width="match_parent"
        android:layout_height="45dp"
        android:layout_below="@+id/chooseTransactionName"
        android:layout_centerInParent="true"/>

//I cut rest of layout


</RelativeLayout>

解决方法

我解决了我的问题。我用过这个：

((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);
((AppCompatActivity) getActivity()).getSupportActionBar();
((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayShowHomeEnabled(true);