在日期选择器中选择日期后如何打开时间选择器

Question

当日期选择器返回selected date时，代码应自动显示时间选择器。时间选择器返回时，活动应"Toast"选定的日期和时间。

FloatingActionButton dateFab = findViewById(R.id.datePicker);
       dateFab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //Open Date Picker Fragment

            DatePickerFragment newFragment = new DatePickerFragment();
            newFragment.setListener(MainActivity.this);
            newFragment.show(getSupportFragmentManager(),
                    "Pick the Date");
            TimePickerFragment newFragment1 = new TimePickerFragment();
            newFragment1.setListener(MainActivity.this);
            newFragment1.show(getSupportFragmentManager(),
                    "Pick the Time");

        }
    });

}

Answer 1

在我的情况下，需要设置多个字段，因此我将它们作为函数中的参数进行传递。设置日期后，只需调用时间选择器功能即可。

 private void showDatePickerDialog(final EditText etDates) {
    final Calendar c = Calendar.getInstance();
    int mYear = c.get(Calendar.YEAR);
    int mMonth = c.get(Calendar.MONTH);
    int mDay = c.get(Calendar.DAY_OF_MONTH);


    DatePickerDialog datePickerDialog = new DatePickerDialog(mContext,
            new DatePickerDialog.OnDateSetListener() {

                @Override
                public void onDateSet(DatePicker view, int year,
                                      int monthOfYear, int dayOfMonth) {


                    etDates.setText( (monthOfYear + 1) + "-" + dayOfMonth + "-" +year 
                    showTimePickerDialog(etTime);

                }
            }, mYear, mMonth, mDay);
    datePickerDialog.setTitle("Select Date");
    datePickerDialog.show();

}

private void showTimePickerDialog(final EditText etTime) {
    Calendar mcurrentTime = Calendar.getInstance();
    int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
    int minute = mcurrentTime.get(Calendar.MINUTE);
    TimePickerDialog mTimePicker;
    mTimePicker = new TimePickerDialog(mContext, new TimePickerDialog.OnTimeSetListener() {
        @Override
        public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
            etTime.setText(selectedHour + ":" + selectedMinute);
        }
    }, hour, minute, true);//Yes 24 hour time
    mTimePicker.setTitle("Select Time");
    mTimePicker.show();
}