如何将 DatePickerDialog 的值传递给不同的 editText？

Question

我创建了两个不同的 editText，上一个检查日期和当前检查日期。我正在使用 fragment 和 DatePickerDialog 来获取日期。每个 editText 都有自己的日期。如何在 datePickerDialog 中传递日期？

P.s I'm using onFocusChange so that the dialog popup when user click on editText. Using setOnClickListener will require user to double click to show the datePickerDialog.

FormFragment.java

public class FormFragment extends Fragment {

....

    //TODO : Fixed datepicker & time picker

    //get Date func
    public void showDatePickerDialog(View v) {
        DialogFragment newFragment = new DatePickerFragment();
        newFragment.show(getFragmentManager(), "datePicker");
    }

    //get time func
    public void showTimePickerDialog(View v) {
        DialogFragment newFragment = new TimePickerFragment();
        newFragment.show(getFragmentManager(), "timePicker");
    }


    public void onViewCreated(final View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        //get CaseDetailActivity
        final Activity activity = this.getActivity();

        /*
        Use onFocusChangeListener - the dialog automatically popped when clicked on edittext
        */

        //inspection date
        final View editText_date = activity.findViewById(R.id.input_inspecDateNew);
        editText_date.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus) {
                    //get current text
                    showDatePickerDialog(v);
                }
            }
        });

        //previous inspection date
        View editText_prevDate = activity.findViewById(R.id.input_lastInspecDate);
        editText_prevDate.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus) {
                    //get current text
                    showDatePickerDialog(v);
                }
            }
        });
    }
}

DatePickerFragment.java

public class DatePickerFragment extends DialogFragment
        implements DatePickerDialog.OnDateSetListener {

    public static EditText editText;

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);

        // Create a new instance of DatePickerDialog and return it
        return new DatePickerDialog(getActivity(), this, year, month, day);

    }

    public void getCurrentDate () {
        Calendar c = Calendar.getInstance();
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        String formattedDate = df.format(c.getTime());

        editText.setText(formattedDate);
    }

    public void onDateSet(DatePicker view, int year, int month, int day) {
        Calendar c = Calendar.getInstance();
        c.set(year, month, day);

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String formattedDate = sdf.format(c.getTime());

        editText.setText(formattedDate);
    }
}

Answer 1

您可以使用 setTargetFragment 和 onActivityResult 来实现，

你可以这样试试

FormFragment.java

public class FormFragment extends Fragment {

    private static final String TAG = FormFragment.class.getSimpleName();

    private static final int REQUEST_CODE_INSPECDATENEW = 200;
    private static final int REQUEST_CODE_LASTINSPECDATE = 201;

    private EditText editText_date;
    private EditText editText_prevDate;

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_blank2, container, false);
    }

    //get Date func
    public void showDatePickerDialog(View v, int requestCode) {
        DialogFragment newFragment = new DatePickerFragment();
        newFragment.setTargetFragment(this, requestCode);
        newFragment.show(getFragmentManager(), "datePicker");
    }

    public void onViewCreated(final View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        //inspection date
        editText_date = view.findViewById(R.id.input_inspecDateNew);
        editText_date.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus) {
                    //get current text
                    showDatePickerDialog(v, REQUEST_CODE_INSPECDATENEW);
                }
            }
        });

        //previous inspection date
        editText_prevDate = view.findViewById(R.id.input_lastInspecDate);
        editText_prevDate.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus) {
                    //get current text
                    showDatePickerDialog(v, REQUEST_CODE_LASTINSPECDATE);
                }
            }
        });
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        Log.d(TAG, "onActivityResult: ");

        if (resultCode == Activity.RESULT_OK) {
            if (data == null) {
                return;
            }

            String dataValue = data.getStringExtra("value");

            if (requestCode == REQUEST_CODE_INSPECDATENEW) {
                editText_date.setText(dataValue);
            } else if (requestCode == REQUEST_CODE_LASTINSPECDATE) {
                editText_prevDate.setText(dataValue);
            }
        }
    }
}

fragment_blank2.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
             xmlns:tools="http://schemas.android.com/tools"
             android:layout_width="match_parent"
              android:orientation="vertical"
             android:layout_height="match_parent">

    <EditText
        android:id="@+id/input_inspecDateNew"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello_blank_fragment"/>

    <EditText
        android:id="@+id/input_lastInspecDate"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello_blank_fragment"/>

</LinearLayout>

DatePickerFragment.java

public class DatePickerFragment extends DialogFragment
        implements DatePickerDialog.OnDateSetListener {

//    public static EditText editText;

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);

        // Create a new instance of DatePickerDialog and return it
        return new DatePickerDialog(getActivity(), this, year, month, day);

    }

    public void getCurrentDate() {
        Calendar c = Calendar.getInstance();
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        String formattedDate = df.format(c.getTime());


//        editText.setText(formattedDate);
    }

    public void onDateSet(DatePicker view, int year, int month, int day) {
        Calendar c = Calendar.getInstance();
        c.set(year, month, day);

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String formattedDate = sdf.format(c.getTime());

        Intent intent = new Intent();
        intent.putExtra("value", formattedDate);

        getTargetFragment().onActivityResult(getTargetRequestCode(), Activity.RESULT_OK, intent);
//        editText.setText(formattedDate);
    }
}

如何将 DatePickerDialog 的值传递给不同的 editText？

How to passed the value of DatePickerDialog to different editText?

java

android

android-edittext

datepickerdialog