编辑您的 DatePicker.java，添加以下 3 个代码摘录。
声明用于限制最小和最大日期的变量。
// Variables for defining minimum date
private int minimumDay;
private int minimumMonth;
private int minimumYear;
// Variables for defining maximum date
private int maximumDay;
private int maximumMonth;
private int maximumYear;
在构造函数之后，您必须重写 onDateChanged 方法。
// Called every time the user changes DatePicker values
public void onDateChanged(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
// Test if chosen date is before minimum date
boolean beforeMinDate = false;
boolean afterMaxDate = false;
if(year < minimumYear){
beforeMinDate = true;
}
else if(year == minimumYear){
if(monthOfYear < minimumMonth){
beforeMinDate = true;
}
else if(monthOfYear == minimumMonth){
if(dayOfMonth < minimumDay){
beforeMinDate = true;
}
}
}
// Test if chosen date is after maximum date
if(!beforeMinDate){
if(year > maxYear){
afterMaxDate = true;
}
else if(year == maxYear){
if(monthOfYear > maxMonth){
afterMaxDate = true;
}
else if(monthOfYear == maxMonth){
if(dayOfMonth > maxDay){
afterMaxDate = true;
}
}
}
}
// If chosen date is before minimum date, update the date and internal
// calendar to minimum date, else, check similarly fot the maximum
// date, else, use the valid chosen date.
if(beforeMinDate)
{
mCalendar.set(minimumYear, minimumMonth, minimumDay,
mCalendar.get(Calendar.HOUR_OF_DAY),
mCalendar.get(Calendar.MINUTE));
updateDate(minimumYear, minimumMonth, minimumDay);
}
else if (afterMaxDate)
{
mCalendar.set(maximumYear, maximumMonth, maximumDay,
mCalendar.get(Calendar.HOUR_OF_DAY),
mCalendar.get(Calendar.MINUTE));
updateDate(maximumYear, maximumMonth, maximumDay);
}
else
mCalendar.set(year, monthOfYear, dayOfMonth,
mCalendar.get(Calendar.HOUR_OF_DAY),
mCalendar.get(Calendar.MINUTE));
}
现在，为最小和最大日期创建 setter 方法。
// Method to define minimum permitted date for the picker.
public void setMinimumDate(int minimumDay, int minimumMonth,
int minimumYear)
{
this.minimumDay = minimumDay;
this.minimumMonth = minimumMonth;
this.minimumYear = minimumYear;
}
//Method to define maximum permitted date for the picker.
public void setMaximumDate(int maximumDay, int maximumMonth,
int maximumYear)
{
this.maximumDay = maximumDay;
this.maximumMonth = maximumMonth;
this.maximumYear = maximumYear;
}
第二部分，在您调用 DatePicker 对话框的活动中，您需要设置所需的最小和最大日期。下面的代码将当前日期设置为最小日期，将未来两年设置为最大日期。
// Define current date as the minimum desired date
Calendar c = Calendar.getInstance();
int currentDay = c.get(Calendar.DAY_OF_MONTH);
int currentMonth = c.get(Calendar.MONTH);
int currentYear = c.get(Calendar.YEAR);
inicioDateTimePicker.setMinimumDate(currentDay, currentMonth,
currentYear);
// Define two years in the future as the maximum desired date
Calendar c = Calendar.getInstance();
int currentDay = c.get(Calendar.DAY_OF_MONTH);
int currentMonth = c.get(Calendar.MONTH);
int currentYear = c.get(Calendar.YEAR);
inicioDateTimePicker.setMinimumDate(currentDay, currentMonth,
currentYear + 2);