Android DatePicker:基于当前日期禁用以前的日期
我的应用程序中有一个Android DatePicker:基于当前日期禁用以前的日期,android,android-datepicker,Android,Android Datepicker,我的应用程序中有一个日期选择器,设置方式如下: 布局: <TextView android:id="@+id/traveltext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1.11"
日期选择器
,设置方式如下:
布局:
<TextView
android:id="@+id/traveltext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.11"
android:text="Date Of Travel"
android:textStyle="bold" />
<EditText
android:id="@+id/txtDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" >
</EditText>
<Button
android:id="@+id/btnCalendar"
android:layout_width="30dp"
android:layout_height="42dp"
android:layout_marginRight="50dp"
android:background="@drawable/date" >
</Button>
</LinearLayout>
一旦创建:
btnCalendar = (Button) findViewById(R.id.btnCalendar);
txtDate = (EditText) findViewById(R.id.txtDate);
btnCalendar.setOnClickListener(this);
方法:
@Override
public void onClick(View v) {
if (v == btnCalendar) {
// Process to get Current Date
final Calendar c = Calendar.getInstance();
mYear = c.get(Calendar.YEAR);
mMonth = c.get(Calendar.MONTH);
mDay = c.get(Calendar.DAY_OF_MONTH);
// Launch Date Picker Dialog
DatePickerDialog dpd = new DatePickerDialog(this,
new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
// Display Selected date in textbox
txtDate.setText(dayOfMonth + "-"
+ (monthOfYear + 1) + "-" + year);
}
}, mYear, mMonth, mDay);
dpd.show();
} }
现在我的问题是,如何基于当前日期禁用以前的日期
请帮忙。谢谢。我认为你实际上无法禁用日期选择器。但是,一旦选择了日期,您就可以使用当前日期对其进行验证,并让用户重新选择未来日期。如果用户选择了过去的日期,则可以发送toast消息。在onDateSet中,您可以在日期上进行验证,就像您希望将日期设置为今天的日期之后一样,然后在onDateSet方法中添加以下代码
Calendar cl = Calendar.getInstance();
cl.set(year, monthOfYear, dayOfMonth);
if (cl.after(Calendar.getInstance())) {
//set your date
}else{
//do nothing
}
希望这对你有用
private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() {
// the callback received when the user "sets" the Date in the
// DatePickerDialog
public void onDateSet(DatePicker view, int yearSelected,
int monthOfYear, int dayOfMonth) {
year = yearSelected;
month = monthOfYear + 1;
day = dayOfMonth;
// Set the Selected Date in Select date Button
txtarrivedate.setText(year + "-" + month + "-" + day);
}
};
//方法在调用showDialog()
Method时自动被调用
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case 1:
// create a new DatePickerDialog with values you want to show
DatePickerDialog da = new DatePickerDialog(this, mDateSetListener,
mYear, mMonth, mDay);
Calendar c = Calendar.getInstance();
c.add(Calendar.DATE, 1);
Date newDate = c.getTime();
da.getDatePicker().setMinDate(newDate.getTime());
return da;
// create a new TimePickerDialog with values you want to show
case 2:
// create a new DatePickerDialog with values you want to show
DatePickerDialog da1 = new DatePickerDialog(this,
mDateSetListener2, mYear, mMonth, mDay);
Calendar c1 = Calendar.getInstance();
c1.add(Calendar.DATE, 1);
Date newDate2 = c1.getTime();
da1.getDatePicker().setMinDate(newDate2.getTime());
return da1;
}
return null;
}
仅使用“用于调用”对话框
展示对话(1) 试试这个:
// set date picker with current date
DatePickerDialog date = new DatePickerDialog(this, datePickerListener, mYear,mMonth,mDay){
// Comapre the date selected in picker with the current date.
@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() {
// as soon as the dialog box is closed, this method will be called.
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
mYear = selectedYear;
mMonth = selectedMonth;
mDay = selectedDay;
// set selected date into textview
txtDate.setText(new StringBuilder().append(mMonth + 1)
.append("-").append(mDay).append("-").append(mYear)
.append(" "));
}
};
//使用当前日期设置日期选择器
DatePickerDialog date=新的DatePickerDialog(this,datePickerListener,mYear,Amnoth,mDay){
//将选择器中选择的日期与当前日期对齐。
@凌驾
公共无效onDateChanged(日期选择器视图,整数年,整数月,整数月)
{
如果(年<年)
view.updateDate(mYear,mMonth,mDay);
如果(月日<月日<年==mYear)
view.updateDate(mYear,mMonth,mDay);
如果(月日<日和年==月日和月日==月日)
view.updateDate(mYear,mMonth,mDay);
}
};
返回日期;
}
私有DatePickerDialog.OnDateSetListener datePickerListener=new DatePickerDialog.OnDateSetListener(){
//对话框关闭后,将立即调用此方法。
public void onDateSet(日期选择器视图,int selectedYear,
int selectedMonth,int selectedDay){
mYear=所选年份;
mMonth=所选的月份;
mDay=所选日期;
//将所选日期设置为文本视图
txtDate.setText(新的StringBuilder().append(mMonth+1)
.append(“-”).append(mDay).append(“-”).append(mYear)
.附加(“”);
}
};
etDateOfDelivery.setOnClickListener(新的OnClickListener(){
@覆盖
公共void onClick(视图v){
新建DatePickerDialog(SendOrderActivity.this,
新OnDateSetListener(){
@凌驾
公共无效onDateSet(日期选择器arg0,整数年,
整数月,整数日){
如果(月==intMonthOfYear&&day只需尝试此解决方案:
dpd.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
我设置了一个名为startbtn和listener的按钮,这样每当用户单击该按钮时,它都会提示一个日期选择器对话框,并将日期设置为一个名为startet的文本视图
//getting calendar instance
calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH);
day = calendar.get(Calendar.DAY_OF_MONTH);
startbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DatePickerDialog startDatePicker = new DatePickerDialog(Search.this, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
startet.setText(dayOfMonth + "-" + (month + 1) + "-" + year);
startDay = dayOfMonth;
startMonth = month + 1;
startYear = year;
}
}, year, month, day);
//Disable date before today
startDatePicker.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
startDatePicker.show();
}
});
日期选择器只是生成日期的另一个选项,您可以从edittext字段中获取日期。因此,我个人认为这将是一种更简单的方法。如果是这样,请帮助我使用当前日期验证所选日期。我该如何做?您可以使用Calendar.getInstance()获取当前日期;但它显示此行的IllegalArgumentException
:dpd.getDatePicker().setMinDate(newDate2.getTime());dpd.getDatePicker().setMinDate(System.currentTimeMillis());太好了,但是如果我在点击按钮时将onDateSet
方法放入按钮中,为什么它不能识别mDateSetListener
呢?我该如何解决这个问题?是的,现在我有一个小问题:当我在手机上安装它时,它有什么不起作用?我的意思是选择了不应该发生的以前的日期。在你的手机上,哪个安卓操作系统版本?好的,伙计,但是DatePickerDialog在我单击按钮即btnCalendar(参见布局中)后不会弹出,所以我应该将onClick放在哪里?
dpd.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
//getting calendar instance
calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH);
day = calendar.get(Calendar.DAY_OF_MONTH);
startbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DatePickerDialog startDatePicker = new DatePickerDialog(Search.this, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
startet.setText(dayOfMonth + "-" + (month + 1) + "-" + year);
startDay = dayOfMonth;
startMonth = month + 1;
startYear = year;
}
}, year, month, day);
//Disable date before today
startDatePicker.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
startDatePicker.show();
}
});