Question

我正在尝试使用日期选择器对话框，但是我遇到了一些方法的问题。

在这种方法中，'。set'和'。toMillis'都提出'无法解决方法：

O(n)

在这种方法中，它再次是'.set'而且我也'无法解决'。monthDay'，'。month'和'.year'上的符号。另外，'时间'要求构造函数，但我不知道哪一个：

@Override
protected Dialog onCreateDialog(int id) {
    switch (id) {
        case DATE_DIALOG_ID:
            final TextView dob = (TextView) findViewById(R.id.TextView_DOB_Info);
            DatePickerDialog dateDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
                public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                    Time dateOfBirth = new Time();
                    dateOfBirth.set(dayOfMonth, monthOfYear, year);
                    long dtDob = dateOfBirth.toMillis(true);
                    dob.setText(DateFormat.format("MMMM dd, yyyy", dtDob));
                    Editor editor = mGameSettings.edit();
                    editor.putLong(GAME_PREFERENCES_DOB, dtDob);
                    editor.commit();
                }
            }, 0, 0, 0);
            return dateDialog;

该类的完整代码，以便您可以在上下文中看到它，如下所示：

 @Override
protected void onPrepareDialog(int id, Dialog dialog) {
    super.onPrepareDialog(id, dialog);
    switch (id) {
        case DATE_DIALOG_ID:
            // Handle any DatePickerDialog initialization here
            DatePickerDialog dateDialog = (DatePickerDialog) dialog;
            int iDay, iMonth, iYear;
            // Check for date of birth preference
            if (mGameSettings.contains(GAME_PREFERENCES_DOB)) {
                // Retrieve Birth date setting from preferences
                long msBirthDate = mGameSettings.getLong(GAME_PREFERENCES_DOB, 0);
                Time dateOfBirth = new Time();
                dateOfBirth.set(msBirthDate);
                iDay = dateOfBirth.monthDay;
                iMonth = dateOfBirth.month;
                iYear = dateOfBirth.year;
            } else {
                Calendar cal = Calendar.getInstance();
                // Today's date fields
                iDay = cal.get(Calendar.DAY_OF_MONTH);
                iMonth = cal.get(Calendar.MONTH);
                iYear = cal.get(Calendar.YEAR);
            }
            // Set the date in the DatePicker to the date of birth OR to the
            // current date
            dateDialog.updateDate(iYear, iMonth, iDay);
            return;
        case PASSWORD_DIALOG_ID:
            // Handle any Password Dialog initialization here
            // Since we don't want to show old password dialogs, just set new
            // ones, we need not do anything here
            // Because we are not "reusing" password dialogs once they have
            // finished, but removing them from
            // the Activity Dialog pool explicitly with removeDialog() and
            // recreating them as needed.
            return;
    }

一如既往，任何帮助都非常感激。

由于

Answer 1

您导入了错误的类：

import java.sql.Time;

导入：

import android.text.format.Time;

来自Documentation

此类在API级别22中已弃用。使用GregorianCalendar   代替。

日历和GregorianCalendar类的替代方法。一个   Time类的实例表示一个时刻，用。指定   第二精度

方法未解析的Java DatePickerDialog

1 个答案: