我有时间选择器，我不想从中选择以前的时间。
这意味着如果我在当前时间之前选择时间则无法显示。我不想在当前时间之前显示时间。
public class ProfileDetail extends AppCompatActivity {
Toolbar toolbar;
String description, str_requirement, str_date, str_time, str_noofperson, str_address;
TextView txt_description;
EditText et_requirment, date_pick, time_set, et_no_of_person, et_address_service;
Button btn_submit;
int mYear, mMonth, mDay, mHour, mMinute;
private Calendar cal;
DateFormat fmtDateAndTime = DateFormat.getTimeInstance();
@RequiresApi(api = Build.VERSION_CODES.N)
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.profile_details);
Bundle extras = getIntent().getExtras();
description = extras.getString("description");
txt_description = (TextView) findViewById(R.id.txtservicedetails);
toolbar = (Toolbar) findViewById(R.id.toolbarforprofile);
setSupportActionBar(toolbar);
cal = Calendar.getInstance();
mDay = cal.get(Calendar.DAY_OF_MONTH);
mMonth = cal.get(Calendar.MONTH);
mYear = cal.get(Calendar.YEAR);
mHour = cal.get(Calendar.HOUR_OF_DAY);
mMinute = cal.get(Calendar.MINUTE);
et_requirment = (EditText) findViewById(R.id.editText_requirement);
et_no_of_person = (EditText) findViewById(R.id.et_noofperson);
et_address_service = (EditText) findViewById(R.id.et_serviceaddress);
time_set = (EditText) findViewById(R.id.et_time);
date_pick = (EditText) findViewById(R.id.et_dateof_visit);
btn_submit = (Button) findViewById(R.id.btn_submit);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
toolbar.setTitle("Need-Hlp");
toolbar.setTitleTextColor(Color.WHITE);
txt_description.setText(description);
//date_pick.setInputType(InputType.TYPE_NULL);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intentfromprevious = new Intent(ProfileDetail.this, NavigationDrawer.class);
intentfromprevious.putExtra("description", description);
intentfromprevious.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intentfromprevious.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
intentfromprevious.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(intentfromprevious);
}
});
date_pick.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showDialog(0);
}
});
final TimePickerDialog.OnTimeSetListener t = new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
cal.set(Calendar.HOUR_OF_DAY, hourOfDay);
cal.set(Calendar.MINUTE, minute);
updateLabel();
}
};
time_set.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Get Current Time
new TimePickerDialog(ProfileDetail.this, t, cal
.get(Calendar.HOUR_OF_DAY), cal
.get(Calendar.MINUTE), true).show();
}
});
//final TextView textView = (TextView)findViewById(R.id.textview23);
//////Submit button onclicklistener
btn_submit.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v) {
str_date = date_pick.getText().toString();
if (et_requirment.getText().toString().equals("")) {
et_requirment.setError("Requirement cannot be blank");
et_requirment.requestFocus();
return;
}
if (str_date.isEmpty() || str_date.length() == 0 || str_date.equals("") || str_date == null) {
Toast.makeText(ProfileDetail.this, "Date cannot be blank", Toast.LENGTH_SHORT).show();
//date_pick.setError("Date cannot be blank");
return;
}
if (time_set.getText().toString().equals("")) {
Toast.makeText(ProfileDetail.this, "Time cannot be blank", Toast.LENGTH_SHORT).show();
//time_set.setError("Time cannot be blank");
//edittext_phone.requestFocus();
return;
}
if (et_no_of_person.getText().toString().toString().equals("")) {
et_no_of_person.setError("No of person cannot be blank");
//edittext_phone.requestFocus();
return;
}
if (et_address_service.getText().toString().equals("")) {
et_address_service.setError("Address cannot be blank");
//edittext_Password.requestFocus();
return;
}
if (!et_requirment.getText().toString().trim().equals("") && !et_no_of_person.getText().toString().trim().equals("") && !et_address_service.getText().toString().equals("")) {
Toast.makeText(ProfileDetail.this, "You Request Submitted", Toast.LENGTH_SHORT).show();
Intent intentforlist = new Intent(ProfileDetail.this, NavigationDrawer.class);
intentforlist.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intentforlist.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
intentforlist.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(intentforlist);
}
}
});
}
private void updateLabel() {
Calendar c = Calendar.getInstance();
String time = "23:00";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date timeCompare = null;
Date currentTimes = new Date();
int comareResult = timeCompare.compareTo(currentTimes);
try {
if (comareResult == 0) {
timeCompare = sdf.parse(time);
time_set.setText(time);
}
} catch (ParseException e) {
e.printStackTrace();
}
}
@Override
@Deprecated
protected Dialog onCreateDialog(int id) {
//return new DatePickerDialog(this, datePickerListener, mYear, mMonth, mDay);
DatePickerDialog _date = new DatePickerDialog(this, datePickerListener, mYear, mMonth, mDay) {
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
if (year < mYear)
view.updateDate(mYear, mMonth, mDay);
if (monthOfYear < mMonth && year == mYear)
view.updateDate(mYear, mMonth, mDay);
if (dayOfMonth < mDay && year == mYear && monthOfYear == mMonth)
view.updateDate(mYear, mMonth, mDay);
}
};
return _date;
}
private DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
date_pick.setText(+selectedDay + " / " + (selectedMonth + 1) + " / "
+ selectedYear);
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
MenuItem item1 = menu.findItem(R.id.action_cart);
MenuItemCompat.setActionView(item1, R.layout.count);
// notificationCount1 = (RelativeLayout) MenuItemCompat.getActionView(item1);
return super.onCreateOptionsMenu(menu);
}
}
答案 0 :(得分：1)
要阻止用户过去选择一个时间（我认为这就是你要求的！）就这样做：
myDatePicker.setMinDate(System.currentTimeMillis(););
答案 1 :(得分：0)
我从您的问题中了解到，您不希望从当前的日历时间中选择上一个时间。为了解决您的问题，您可以使用以下代码
datePicker.setMinDate(System.currentTimeMillis() - 1000);
记住：
从源代码开始，最小日期必须在当前日期之前，而不是等于当前日期。所以你只需要从现在开始减去足够的时间