Android 日期选择 DatePickerDialog

//获取系统时间，用于改变DatePickerDialog显示的默认时间
int year;
int month;
int day;

private void getNowDate() {
Calendar calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH);
day = calendar.get(Calendar.DAY_OF_MONTH);
}

private void showDate(final int index) {

DatePickerDialog datedialog = new DatePickerDialog(this, new OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
//对时间选择器的时间监听
if (index == 1) {
//点击tvStart时
tvStart.setText("");
tvStart.setText(year + "-" + (month + 1) + "-" + dayOfMonth);
}
if (index == 2) {
//点击tvEnd时
tvEnd.setText("");
tvEnd.setText(year + "-" + (month + 1) + "-" + dayOfMonth);
}
}
}, year, month, day);
datedialog.show();
}