我的EditText仅由SetText()更新;每2次尝试

Question

我正在尝试在EditText框中显示日期和时间，并在这里编写了一些代码。问题是，它正在发挥作用——但只是在第二次尝试时。意思是我选择日期和时间。。什么也没发生，第二次尝试setText((；更新EditText以显示日期和时间。然而，正如您可能已经猜到的，我希望它立即更新EditText。

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_reservation);
firebaseAuth = FirebaseAuth.getInstance();
textViewUserid = findViewById(R.id.addReservation_userId_edittext);
FirebaseUser user = firebaseAuth.getCurrentUser();
textViewUserid.setText(user.getEmail());
gestureDetector = new GestureDetector(this);
mDisplayDate = findViewById(R.id.addReservation_fromTime_edittext);
mDisplayDate2 = findViewById(R.id.addReservation_toTime_edittext);

mDisplayDate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Calendar cal = Calendar.getInstance();
int year = cal.get(Calendar.YEAR);
int month = cal.get(Calendar.MONTH);
int day = cal.get(Calendar.DAY_OF_MONTH);
int hour = cal.get(Calendar.HOUR_OF_DAY);
int minute = cal.get(Calendar.MINUTE);
DatePickerDialog datePickerDialog = new DatePickerDialog(
AddReservationActivity.this,
android.R.style.Theme_Light,
mDateSetListener,
year,month,day);
TimePickerDialog timePickerDialog = new TimePickerDialog(
AddReservationActivity.this,
android.R.style.Theme_Light,
mTimeSetListener,
hour,minute,true);
timePickerDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
timePickerDialog.show();
datePickerDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
datePickerDialog.show();
}
});
mDateSetListener = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
month = month + 1;
final String date = dayOfMonth + "/" + month + "/" + year;
mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
if (minute < 10) {
String time = "" + hourOfDay + ":" + "0"+minute;
mDisplayDate.getText().toString();
mDisplayDate.setText(date + " " + time);
}else {
String time = "" + hourOfDay + ":" + minute;
mDisplayDate.getText().toString();
mDisplayDate.setText(date + " " + time);
}
}
};
}
}

我已经试了几个小时来解决这个问题，遍找Stackoverflow和许多其他网站。这有点令人沮丧，我真的希望有人能告诉我做错了什么。

如果网站上已经有我错过的解决方案，我深表歉意。提前非常感谢。

Answer 1

我找到了解决方案，并按照注释中的建议添加了EditText。因此，不要试图同时使用日期和时间字符串设置EditText的文本。我把它们分开，做了一个setText(日期(；并随时间附加：

mDateSetListener = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
month = month + 1;
final String date = dayOfMonth + "/" + month + "/" + year;
mDisplayDate.setText(date);
}
};
mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
if (minute < 10) {
String time = " " + hourOfDay + ":" + "0" + minute;
mDisplayDate.append(time);
} else {
String time = " " + hourOfDay + ":" + minute;
mDisplayDate.append(time);
}
}
};