下面是Material Date Picker的Kotlin扩展函数:

fun TextInputEditText.datePicker(fm:FragmentManager, tag: String) {

isFocusableInTouchMode = false
isClickable = true
isFocusable = false

val datePicker =
    MaterialDatePicker.Builder.datePicker()
        .setTitleText("Select Date")
        .build()


setOnClickListener {

    datePicker.show(fm,"tag")
}

datePicker.addOnPositiveButtonClickListener {
   setText(datePicker.headerText)
    Log.d("TAG", "datePicker: \n $it")
}}

用法:

在活动:

yourTextInputEditText.datePicker(supportFragmentManager,"tag")

在片段:

yourTextInputEditText.datePicker(requireActivity().supportFragmentManager,"tag")

这是我怎么做的:类似于选择的答案，但使用一个静态对话框类，所以它更可重用，也使用onFocusChange而不是onClick。

editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            if (hasFocus) {
                DialogFragment datePickerFragment = new DatePickerFragment() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int month, int day) {
                        Log.d(TAG, "onDateSet");
                        Calendar c = Calendar.getInstance();
                        c.set(year, month, day);
                        editText.setText(df.format(c.getTime()));
                        nextField.requestFocus(); //moves the focus to something else after dialog is closed
                    }
                };
                datePickerFragment.show(getActivity().getSupportFragmentManager(), "datePicker");
            }
        }
    });

datepicker对话框。

public static class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{

    @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);
    }

    @Override
    public void onDateSet(DatePicker view, int year, int month, int day) {
        //blah
    }
}

试试这个

btn=(Button)findViewById(R.id.chs);
    final Dialog dialog = new Dialog(MainActivity.this);
    dialog.setCanceledOnTouchOutside(true);
    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            dialog.setContentView(R.layout.datepickerdialog);
            dp=(DatePicker) dialog.findViewById(R.id.btp);
            dialog.show();
            ok=(Button)dialog.findViewById(R.id.btn1);
            ok.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    dialog.dismiss();
                }
            });
        }

    });

使用这个

your_edittext.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View arg0) {

                    final Calendar calendar = Calendar.getInstance();
                    int yy = calendar.get(Calendar.YEAR);
                    int mm = calendar.get(Calendar.MONTH);
                    int dd = calendar.get(Calendar.DAY_OF_MONTH);
                    DatePickerDialog datePicker = new DatePickerDialog(getActivity(), new DatePickerDialog.OnDateSetListener() {
                        @Override
                        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                            String date = String.valueOf(dayOfMonth) + "/" + String.valueOf(monthOfYear+1)
                                    + "/" + String.valueOf(year);
                            your_edittext.setText(date);
                        }
                    }, yy, mm, dd);
                    datePicker.show();
                }
            });

这在2020年1月对我有效

XML部分:

  <EditText
            android:id="@+id/etDOB"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:clickable="true"
            android:editable="false"
            android:ems="10"
            android:hint="Enter Your Date of Birth" />

Java的部分:

         final Calendar myCalendar = Calendar.getInstance();

         userDOBView  = (EditText)findViewById(R.id.etDOB);


    final DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener(){
      @Override
      public void onDateSet(DatePicker view, int year, int monthOfYear, int  dayOfMonth) {
             myCalendar.set(Calendar.YEAR, year);
             myCalendar.set(Calendar.MONTH, monthOfYear);
             myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
             updateLabel();
      }
    };

    userDOBView.setOnTouchListener(new View.OnTouchListener(){
      @Override
      public boolean onTouch(View v, MotionEvent event){
       if(event.getAction() == MotionEvent.ACTION_DOWN){
         new DatePickerDialog("YourClassName".this, date, 
             myCalendar.get(Calendar.YEAR), 
             myCalendar.get(Calendar.MONTH),         
             myCalendar.get(Calendar.DAY_OF_MONTH)).show();
          }
          return true;
       }
    });
private void updateLabel() {
  String myFormat = "MM/dd/yyyy"; //In which you need put here
  SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);

  // edittext.setText(sdf.format(myCalendar.getTime()));
  userDOBView.setText(sdf.format(myCalendar.getTime()));
} 

 selectDate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                DatePickerDialog  mdiDialog =new DatePickerDialog(mContext,new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                        Toast.makeText(getApplicationContext(),year+ " "+monthOfYear+" "+dayOfMonth,Toast.LENGTH_LONG).show();


                    }
                }, year, month, date);
                mdiDialog.show();

            }

        });