我想在再次选择时在datepicker对话框中显示所选日期。
这是我尝试过的。
signup.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Calendar mcurrentDate=Calendar.getInstance();
year=mcurrentDate.get(Calendar.YEAR);
month=mcurrentDate.get(Calendar.MONTH);
day=mcurrentDate.get(Calendar.DAY_OF_MONTH);
DatePickerDialog mDatePicker=new DatePickerDialog(CreateAccountActivity.this, new OnDateSetListener()
{
@Override
public void onDateSet(DatePicker datepicker, int selectedyear, int selectedmonth, int selectedday)
{
year = selectedyear;
month = selectedmonth;
day = selectedday;
signup.setText(new StringBuilder().append(year).append("-").append(month+1).append("-").append(day));
}
},year, month, day);
mDatePicker.setTitle("Please select date");
mDatePicker.getDatePicker().setMaxDate(System.currentTimeMillis());
mDatePicker.show();
}
});
但问题是，当我再次选择我的约会时。它显示当前日期。 我想在对话框中显示所选日期。
答案 0 :(得分：4)
我已经解决了答案......
这是答案......
public void onClick(View v) {
if (year == 0 || month == 0 || day == 0) {
Calendar mcurrentDate=Calendar.getInstance();
year=mcurrentDate.get(Calendar.YEAR);
month=mcurrentDate.get(Calendar.MONTH);
day=mcurrentDate.get(Calendar.DAY_OF_MONTH);
}
DatePickerDialog mDatePicker=new DatePickerDialog(CreateAccountActivity.this, new OnDateSetListener()
{
@Override
public void onDateSet(DatePicker datepicker, int selectedyear, int selectedmonth, int selectedday)
{
year = selectedyear;
month = selectedmonth;
day = selectedday;
signup.setText(new StringBuilder().append(year).append("-").append(month+1).append("-").append(day));
}
},year, month, day);
mDatePicker.setTitle("Please select date");
mDatePicker.getDatePicker().setMaxDate(System.currentTimeMillis());
mDatePicker.show();
我跟着页面 DatePickerDialog always opens the current date
阅读评论并感谢@Andrew T：）
答案 1 :(得分：2)
你可以用这个：
private EditText mbirthdayView;
mbirthdayView=(EditText)findViewById(R.id.birthday);
mbirthdayView.setOnClickListener(new OnClickListener() {
@SuppressWarnings("deprecation")
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
showDialog(DATE_DIALOG_ID);
}
});
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DATE_DIALOG_ID:
// set date picker as current date
return new DatePickerDialog(this, datePickerListener, year, month,
day);
}
return null;
}
private DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
// when dialog box is closed, below method will be called.
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
year = selectedYear;
month = selectedMonth;
day = selectedDay;
// set selected date into textview
mbirthdayView.setText( (day)+(".")+(month + 1)+(".")+(year));
// set selected date into datepicker also
dpResult.init(year, month, day, null);
}
};
答案 2 :(得分：2)
Yon可以效仿我的榜样：
打开“res / layout / main.xml”文件，添加日期选择器，标签和按钮进行演示。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="@+id/btnChangeDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Change Date" />
<TextView
android:id="@+id/lblDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Current Date (M-D-YYYY): "
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/tvDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceLarge" />
<DatePicker
android:id="@+id/dpResult"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
阅读代码的评论，应该是不言自明的。
文件：MyAndroidAppActivity.java
public class MyAndroidAppActivity extends Activity {
private TextView tvDisplayDate;
private DatePicker dpResult;
private Button btnChangeDate;
private int year;
private int month;
private int day;
static final int DATE_DIALOG_ID = 999;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setCurrentDateOnView();
addListenerOnButton();
}
// display current date
public void setCurrentDateOnView() {
tvDisplayDate = (TextView) findViewById(R.id.tvDate);
dpResult = (DatePicker) findViewById(R.id.dpResult);
final Calendar c = Calendar.getInstance();
year = c.get(Calendar.YEAR);
month = c.get(Calendar.MONTH);
day = c.get(Calendar.DAY_OF_MONTH);
// set current date into textview
tvDisplayDate.setText(new StringBuilder()
// Month is 0 based, just add 1
.append(month + 1).append("-").append(day).append("-")
.append(year).append(" "));
// set current date into datepicker
dpResult.init(year, month, day, null);
}
public void addListenerOnButton() {
btnChangeDate = (Button) findViewById(R.id.btnChangeDate);
btnChangeDate.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showDialog(DATE_DIALOG_ID);
}
});
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DATE_DIALOG_ID:
// set date picker as current date
return new DatePickerDialog(this, datePickerListener,
year, month,day);
}
return null;
}
private DatePickerDialog.OnDateSetListener datePickerListener
= new DatePickerDialog.OnDateSetListener() {
// when dialog box is closed, below method will be called.
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
year = selectedYear;
month = selectedMonth;
day = selectedDay;
// set selected date into textview
tvDisplayDate.setText(new StringBuilder().append(month + 1)
.append("-").append(day).append("-").append(year)
.append(" "));
// set selected date into datepicker also
dpResult.init(year, month, day, null);
}
};
}
我希望你能从我的例子中得到帮助。