Dev*_*per 19 android android-datepicker android-layout
我想点击编辑文字打开日历.之后,我想设置用户从编辑文本中的日历中选择的日期.问题是,只有当我第二次点击EditText然后打开日历时.请帮我解决问题(why calendar don't open for the first time).
EditText XML代码
<EditText
android:id="@+id/dateofBirth"
android:layout_width="290dp"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="10dp"
android:maxLines="1"
android:hint="dd/mm/yyyy" />
活动代码
public void informationPopUp() {
final Dialog dialog= new Dialog(MainActivity.this,R.style.Dialog_Fullscreen);
dialog.setContentView(R.layout.details_dialog);
dateofBirth = (EditText)dialog.findViewById(R.id.dateofBirth);
dialog.show();
myCalendar = Calendar.getInstance();
final DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
// TODO Auto-generated method stub
myCalendar.set(Calendar.YEAR, year);
myCalendar.set(Calendar.MONTH, monthOfYear);
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
updateLabel();
}
};
dateofBirth.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
showDialog(DATE_DIALOG_ID);
}
});
}
private void updateLabel() {
String myFormat = "MM/dd/yy"; //In which you need put here
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
dateofBirth.setText(sdf.format(myCalendar.getTime()));
}
protected Dialog onCreateDialog(int id) {
final Calendar now = Calendar.getInstance();
switch (id) {
case DATE_DIALOG_ID:
// set date picker as current date
DatePickerDialog _date = new DatePickerDialog(this, date,myCalendar
.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
myCalendar.get(Calendar.DAY_OF_MONTH)){
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth){
if (year > now.get(Calendar.YEAR))
view.updateDate(myCalendar
.get(Calendar.YEAR), myCalendar
.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH));
if (monthOfYear > now.get(Calendar.MONTH) && year == now.get(Calendar.YEAR))
view.updateDate(myCalendar
.get(Calendar.YEAR), myCalendar
.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH));
if (dayOfMonth > now.get(Calendar.DAY_OF_MONTH) && year == now.get(Calendar.YEAR) &&
monthOfYear == now.get(Calendar.MONTH))
view.updateDate(myCalendar
.get(Calendar.YEAR), myCalendar
.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH));
}
};
return _date;
}
return null;
}
我不明白我做错了什么.请提出解决方案.
Aru*_*kar 35
我会尝试解决你的问题,但我并不完全确定第一个原因.
仅在第二次单击时打开日历是因为您使用的是edittext.在第一次单击时,您的编辑文本将获得焦点.然后第二次单击只调用onClickListener.
如果您不期望手动编辑日期(使用键盘),那么为什么不使用TextView显示所选日期？
由于您没有在代码中设置DateSetListener,因此在editText中未更新日期的问题正在发生.您需要设置它以通知系统已设置日期.DateChange侦听器仅在您更改日期时返回日期,并且您似乎没有在EditText中设置日期.
试试这段代码:
Calendar cal = Calendar.getInstance(TimeZone.getDefault());
DatePickerDialog datePicker = new DatePickerDialog(this,
R.style.AppBlackTheme,
datePickerListener,
cal.get(Calendar.YEAR),
cal.get(Calendar.MONTH),
cal.get(Calendar.DAY_OF_MONTH));
datePicker.setCancelable(false);
datePicker.setTitle("Select the date");
return datePicker;
}
} catch (Exception e) {
showMsgDialog("Exception",
"An error occured while showing Date Picker\n\n"
+ " Error Details:\n" + e.toString(), "OK");
}
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) {
String year1 = String.valueOf(selectedYear);
String month1 = String.valueOf(selectedMonth + 1);
String day1 = String.valueOf(selectedDay);
TextView tvDt = (TextView) findViewById(R.id.tvDate);
tvDt.setText(day1 + "/" + month1 + "/" + year1);
}
};
在这里,我将日期更新为具有ID"tvDate"的TextView.我建议使用TextView而不是EditText并尝试此代码.
如果您需要使用EditText并在第一次单击时加载日历,则尝试将onFocusListner设置为editText而不是onClickListner.
editText.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if(hasFocus) {
// Show your calender here
} else {
// Hide your calender here
}
}
});
小智 7
public class MainActivity extends Activity {
private Calendar cal;
private int day;
private int month;
private int year;
private EditText et;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et= (EditText) findViewById(R.id.edittext1);
cal = Calendar.getInstance();
day = cal.get(Calendar.DAY_OF_MONTH);
month = cal.get(Calendar.MONTH);
year = cal.get(Calendar.YEAR);
et.setText(day+"/"+month+"/"+"/"+year);
et.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
DateDialog();
}
});
}
public void DateDialog(){
OnDateSetListener listener=new OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth)
{
et.setText(dayOfMonth+"/"+monthOfYear+"/"+year);
}};
DatePickerDialog dpDialog=new DatePickerDialog(this, listener, year, month, day);
dpDialog.show();
}
}
只做这个
//Open the DatePicker dialgo in one click and also hide the soft keyboard.
youEditText.setInputType(InputType.TYPE_NULL);
youEditText.requestFocus();