日期、時間選擇器

bt_choose.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Calendar calendar=Calendar.getInstance();
                final int year = calendar.get(Calendar.YEAR);
                final int month = calendar.get(Calendar.MONTH);
                final int day = calendar.get(Calendar.DAY_OF_MONTH);
                DatePickerDialog dpd=new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                        et_date.setText(year+"-"+（month+1）+"-"+day);
                    }
                }, year, month, day);
                dpd.show();

            }
        });
bt_choose_time.setOnClickListener(new View.OnClickListener() {
            Calendar calendar=Calendar.getInstance();
            fianal int hour =calendar.get(Calendar.HOUR_OF_DAY);
            fianal int minute =calendar.get(Calendar.MINUTE);
            @Override
            public void onClick(View v) {
                TimePickerDialog tpd=new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                        et_time.setText(hour+":"+minute);
                    }
                }, hour, minute, true);
                tpd.show();

            }
        });