Android DatePicker crashes when setting minDate or maxDate on kitkat
Hello I have a datepicker dialog that pops up when the user taps on an EditText. It works on another device I tried it on which run Android 6.0 however when I tried the same app on a table that run kitkat it crashed.
I can confirm it is the setMinDate or setMaxDate code because I took that out and the page didn't crash after I did.
This is the log:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.xxxxxx.pointofsale, PID: 13402 java.lang.NullPointerException at android.widget.CalendarView.onScroll(CalendarView.java:1216) at android.widget.CalendarView.access$900(CalendarView.java:76) at android.widget.CalendarView$2.onScroll(CalendarView.java:1077) at android.widget.AbsListView.invokeOnItemScrollListener(AbsListView.java:1463) at android.widget.ListView.layoutChildren(ListView.java:1745) at android.widget.AbsListView.onLayout(AbsListView.java:2149) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1888) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1742) at android.widget.LinearLayout.onLayout(LinearLayout.java:1651) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515) at android.widget.FrameLayout.onLayout(FrameLayout.java:450 ) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1888) at android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1877) at android.widget.LinearLayout.onLayout(LinearLayout.java:1653) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515) at android.widget.FrameLayout.onLayout(FrameLayout.java:450) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515) at android.widget.FrameLayout.onLayout(FrameLayout.java:450) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515) at android.widget.FrameLayout.onLayout(FrameLayout.java:450) at android.vi ew.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1888) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1742) at android.widget.LinearLayout.onLayout(LinearLayout.java:1651) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515) at android.widget.FrameLayout.onLayout(FrameLayout.java:450) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1888) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1742) at android.widget.LinearLayout.onLayout(LinearLayout.java:1651) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515) at android.widge t.FrameLayout.onLayout(FrameLayout.java:450) at android.view.View.layout(View.java:15125) at android.view.ViewGroup.layout(ViewGroup.java:4862) at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2323) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2029) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1192) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6231) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:788) at android.view.Choreographer.doCallbacks(Choreographer.java:591) at android.view.Choreographer.doFrame(Choreographer.java:560) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:774) at android.os.Handler.handleCallback(Handler.java:808) at android.os.Handler.dispatchMessage(Handler.java:103) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:5292) at java.lang.reflect.Method.invokeNative(Nativ
This is my code:
final DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
mCalendar.set(Calendar.YEAR, year);
mCalendar.set(Calendar.MONTH, monthOfYear);
mCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
String myFormat = "yyyy-MM-dd"; //In which you need put here
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
mSelectedDate = sdf.format(mCalendar.getTime());
etDate.setText(Utils.formatDate(mSelectedDate, "yyyy-MM-dd", "EEEE, d MMMM yyyy"));
getTravelSchedules();
}
};
private final View.OnClickListener mDateViewOnClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
if (etDate.getText().toString().equals("")) {
Toast.makeText(getApplicationContext(), "Please select a destination first!", Toast.LENGTH_LONG).show();
return;
}
Date today = new Date();
Calendar c = Calendar.getInstance();
c.setTime(today);
c.add(Calendar.DATE, +7);
final long maxDate = c.getTime().getTime();
c.setTime(today);
final long minDate = c.getTime().getTime();
DatePickerDialog datePickerDialog = new DatePickerDialog(mContext, R.style.DialogTheme, mDateSetListener, mCalendar
.get(Calendar.YEAR), mCalendar.get(Calendar.MONTH),
mCalendar.get(Calendar.DAY_OF_MONTH));
datePickerDialog.getDatePicker().setMinDate(minDate);
datePickerDialog.getDatePicker().setMaxDate(maxDate);
datePickerDialog.show();
}
};
你也可以使用这个功能
void showDatePickerDialog(final EditText et) {
DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// TODO Auto-generated method stub
Calendar myCalendar = Calendar.getInstance();
myCalendar.set(Calendar.YEAR, year);
myCalendar.set(Calendar.MONTH, monthOfYear);
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
et.setText(new SimpleDateFormat("dd MMM, yyyy", Locale.getDefault()).format(myCalendar.getTime()));
}
};
// Calendar Minimum Range
Calendar calendarMinDate = Calendar.getInstance();
calendarMinDate.add(Calendar.DATE, 0);
// Calendar Maximum Range
Calendar calendarMaxDate = Calendar.getInstance();
calendarMaxDate.add(Calendar.DATE, +7);
DatePickerDialog datePickerDialog = new DatePickerDialog(getActivity(),
R.style.MyDatePickerDialogTheme, date, calYear, calMonth, calDay);
datePickerDialog.getDatePicker().setMinDate(calendarMinDate.getTimeInMillis());
datePickerDialog.getDatePicker().setMaxDate(calendarMaxDate.getTimeInMillis());
datePickerDialog.show();
}
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