Android 我的日期时间选择器显示日期从1990年开始，而不是系统日期

我有一个按钮，通过单击它，我正在加载一个日期时间选择器
如果（视图==开始日期按钮）{

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我希望日期时间选择器从当前日期开始，因为您获取的当前日期错误。您的IDE应该显示一条警告

以下是正确的方法：

Calendar calendar = Calendar.getInstance();
DatePickerDialog dpd = new DatePickerDialog(this,
        new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year,
                                  int monthOfYear, int dayOfMonth) {
                //dayOfMonth=Calendar.DAY_OF_MONTH;
                //monthOfYear=Calendar.MONTH;
                setText(dayOfMonth + "/"
                        + monthOfYear + "/" + year);
                eventModel.setStartDate(dayOfMonth + "."
                        + monthOfYear + "." + year);
            }
        }, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
        calendar.get(Calendar.DAY_OF_MONTH));
dpd.show();

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获取当前日期时出错。IDE应显示警告

以下是正确的方法：

Calendar calendar = Calendar.getInstance();
DatePickerDialog dpd = new DatePickerDialog(this,
        new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year,
                                  int monthOfYear, int dayOfMonth) {
                //dayOfMonth=Calendar.DAY_OF_MONTH;
                //monthOfYear=Calendar.MONTH;
                setText(dayOfMonth + "/"
                        + monthOfYear + "/" + year);
                eventModel.setStartDate(dayOfMonth + "."
                        + monthOfYear + "." + year);
            }
        }, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
        calendar.get(Calendar.DAY_OF_MONTH));
dpd.show();

---

获取当前日期时出错。IDE应显示警告

以下是正确的方法：

Calendar calendar = Calendar.getInstance();
DatePickerDialog dpd = new DatePickerDialog(this,
        new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year,
                                  int monthOfYear, int dayOfMonth) {
                //dayOfMonth=Calendar.DAY_OF_MONTH;
                //monthOfYear=Calendar.MONTH;
                setText(dayOfMonth + "/"
                        + monthOfYear + "/" + year);
                eventModel.setStartDate(dayOfMonth + "."
                        + monthOfYear + "." + year);
            }
        }, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
        calendar.get(Calendar.DAY_OF_MONTH));
dpd.show();

---

获取当前日期时出错。IDE应显示警告

以下是正确的方法：

Calendar calendar = Calendar.getInstance();
DatePickerDialog dpd = new DatePickerDialog(this,
        new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year,
                                  int monthOfYear, int dayOfMonth) {
                //dayOfMonth=Calendar.DAY_OF_MONTH;
                //monthOfYear=Calendar.MONTH;
                setText(dayOfMonth + "/"
                        + monthOfYear + "/" + year);
                eventModel.setStartDate(dayOfMonth + "."
                        + monthOfYear + "." + year);
            }
        }, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
        calendar.get(Calendar.DAY_OF_MONTH));
dpd.show();