来自另一个DatePicker的DatePicker的setMinDate

Question

我正在开发一个酒店应用程序（个人学习项目）。在“立即预订”页面中，我正在显示2 EditText字段。一个用于入住日期，另一个用于退房日期。

我已将DatePicker设置为仅使用setMinDate()显示当前和未来日期。但我想要的是，退房DatePicker应显示（入住日期+ 1）作为可选日期。

因此，例如，如果用户选择入住日期为2017年10月24日，则退房DatePicker应显示2017年10月25日之前的日期。

BookFragment.java

public void onStart() { 
    super.onStart(); 

    EditText inDate = v.findViewById(R.id.checkInDate); 
    inDate.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View view) { 
      DateDialog dialog = new DateDialog(view); 
      FragmentTransaction ft = getFragmentManager().beginTransaction(); 
      dialog.show(ft, "Select Check-In Date"); 
     } 
    }); 

    EditText outDate = v.findViewById(R.id.checkOutDate); 
    outDate.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View view) { 
      EditText inDateText = v.findViewById(R.id.checkInDate); 
      if (TextUtils.isEmpty(inDateText.getText().toString())) { 
       Toast.makeText(getContext(), "Select Check-in Date first", Toast.LENGTH_SHORT).show(); 
      } else { 
       DateDialog dialog = new DateDialog(view); 
       FragmentTransaction ft = getFragmentManager().beginTransaction(); 
       dialog.show(ft, "Select Check-Out Date"); 
      } 
     } 
    }); 

} 

DateDialog.java

@SuppressLint("ValidFragment") 
public class DateDialog extends DialogFragment implements DatePickerDialog.OnDateSetListener { 

EditText dateText; 
int cyear, cmonth, cday; 

public DateDialog(View view) { 
    dateText = (EditText) view; 
} 

@NonNull 
public Dialog onCreateDialog(Bundle savedInstanceState) { 

    DatePickerDialog date = new DatePickerDialog(getActivity(), this, cyear, cmonth, cday); 
    final Calendar c = Calendar.getInstance(); 
    Date currentDate = c.getTime(); 
    cyear = c.get(Calendar.YEAR); 
    cmonth = c.get(Calendar.MONTH); 
    cday = c.get(Calendar.DAY_OF_MONTH); 
    date.getDatePicker().setMinDate(currentDate.getTime()); 
    return date; 

} 

public void onDateSet(DatePicker view, int year, int month, int day) { 
    String date = day + "/" + (month + 1) + "/" + year; 
    dateText.setText(date); 
} 

是book.xml

<EditText 
     android:id="@+id/checkInDate" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:ems="10" 
     android:focusable="false" 
     android:hint="@string/check_in_date" 
     android:inputType="date" /> 

    <EditText 
     android:id="@+id/checkOutDate" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:ems="10" 
     android:focusable="false" 
     android:hint="@string/check_out_date" 
     android:inputType="date" /> 

由于两个EditText上呼吁同DateDialog类，我怎么能得到签入日期并使用setMinDate（）进行签出？

现在，我正在做的解决方法是从EditText获取日期字符串，将其解析为日期并执行相同的检出操作。当用户点击“预订”按钮，它会检查退房是否早于登记入住使用

if (odate.before(idate)) { 
     outDateText.setError("Check-Out must be after Check-In"); 
     Toast.makeText(getContext(), "Check-Out Date must be after Check-In Date", Toast.LENGTH_SHORT).show(); 
     flag = 1; 
    } 

该做的工作，但我宁愿有禁用日期这是前入住日期。

Answer 1

让你Date是

String string_date = "24/10/2017"; 

然后，增加一天你的当前日期

Calendar cal = Calendar.getInstance(); 
cal.setTime(string_date); 
cal.add(Calendar.DATE, 1); 
checkOutDate = cal.getTimeInMillis(); 

然后设置minDate您datePicker

datePicker.setMinDate(checkOutDate - 1000); 

编辑

创建您的DateDialog类

像globallong变量dateToSet - long dateToSet;

改变你的constructor从

public DateDialog(View view) { 
dateText = (EditText) view; 
} 

到

public DateDialog(View view, long dateToSet) { 
dateText = (EditText) view; 
//then update the value of dateToSet here 
this.dateToSet = dateToSet 
} 

然后为Editext 1使用本

else { 
      Date currentDate = c.getTime(); 
      cyear = c.get(Calendar.YEAR); 
      cmonth = c.get(Calendar.MONTH); 
      cday = c.get(Calendar.DAY_OF_MONTH); 
      DateDialog dialog = new DateDialog(view,currentDate.getTime()); 
      FragmentTransaction ft = getFragmentManager().beginTransaction(); 
      dialog.show(ft, "Select Check-Out Date"); 
     } 

您Editext 2使用本

//String string_date = "24/10/2017"; 
//getting current date from editText 1 
String string_date = editText.getText().toString(); 
//check the string must not be null 
//then, increase one day to your current date 

Calendar cal = Calendar.getInstance(); 
cal.setTime(string_date); 
cal.add(Calendar.DATE, 1); 
checkOutDate = cal.getTimeInMillis(); 
DateDialog dialog = new DateDialog(view,checkOutDate); 
FragmentTransaction ft = getFragmentManager().beginTransaction(); 
      dialog.show(ft, "Select Check-Out Date"); 

然后你onCreateDialog必须

public Dialog onCreateDialog(Bundle savedInstanceState) { 

DatePickerDialog date = new DatePickerDialog(getActivity(), this, cyear, cmonth, cday); 
final Calendar c = Calendar.getInstance(); 
date.getDatePicker().setMinDate(dateToSet); 
return date; 

} 

可以帮助你