DateickerDialog,TimePickerDialog修改EditText后无法获取实际值

如果使用了android:theme="@android:style/Theme.Light.NoTitleBar"       
样式的DateickerDialog，那么显示年月日的地方是EditText，是可以编辑的。      
    
但是，在大多数手机上面，该EditText被修改后立即点击确定。那么获取到的年月日还是之前的年月日，我们没能够获取到EditText修改后的实际数据。       
我们可以巧妙地通过主动触发焦点的改变，来使得DatePicker的年月日改变，那么这样我们再获取到的DatePicker的年月日，就是修改后的年月日。      
   
   

如下所示：      

manifest.xml      

application:      

android:theme="@android:style/Theme.Light.NoTitleBar"      
   

activity:      

String TAG = getClass().getSimpleName();
DatePickerDialog datePickerDialog;
int year = 1990,month = 0,day = 1;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    datePickerDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {

            int realYear = year;
            int realMonthOfYear = monthOfYear;
            int realDayOfMonth = dayOfMonth;
            Calendar cal = Calendar.getInstance();
            try{
                datePickerDialog.getDatePicker().requestFocus();
                Log.d(TAG, "DatePickerDialog   " + datePickerDialog.getDatePicker().getCalendarView().getDate());
                Calendar calendar = Calendar.getInstance();
                calendar.setTime(new Date(datePickerDialog.getDatePicker().getCalendarView().getDate()));
                realYear = calendar.get(Calendar.YEAR);
                realMonthOfYear = calendar.get(Calendar.MONTH);
                realDayOfMonth = calendar.get(Calendar.DAY_OF_MONTH);
                Log.d(TAG,"year is :"+year+ "\tmonth is :"+month+"\tday is :"+day      

+"\nrealYear is => "+realYear+"\trealMonth is =>"+realMonthOfYear+"\trealDayis =>"+realDayOfMonth);
            }catch (Exception e){
                Log.d(TAG,"DatePickerDialog   "+e.toString());
            }
        }
    },year,month,day);
    datePickerDialog.show();      

｝      

运行后直接把年的位置输入1994（不要通过点击+-号改变数字），点击确定。      

（部分手机没有此问题，因此部分手机会在点击确定的时候把焦点跳到下一个EditText去！）      

输出结果如下：
04-04 14:50:24.969 8896-8896 D/MainActivity: DatePickerDialog   757407000477
04-04 14:50:24.970 8896-8896 D/MainActivity: year is :1990	month is :0	day is :1
                                             ealYear is => 1994	realMonth is =>0	realDayis =>1
      

同理，TimePickerDialog也如此，需要把焦点改变。      

但是TimePickerDialog并不能直接获取到TimePicker，那么我们可以通过反射的方式实现。      

new TimePickerDialog.OnTimeSetListener() {
    @Override
    public void onTimeSet(TimePicker view,
                          int hourOfDay, int minute) {
        int realHourOfDay = hourOfDay;
        int realMinute = minute;
        Log.d(TAG,"======================>");
        try {
            Field mTimePicker = timePicker.getClass().getDeclaredField("mTimePicker");
            mTimePicker.setAccessible(true);
            TimePicker timePicker = (TimePicker) (mTimePicker.get(timePicker));
            timePicker.requestFocus();
            realHourOfDay = timePicker.getCurrentHour();
            realMinute = timePicker.getCurrentMinute();      
    
Log.d(TAG, "hourOfDay =>"+hourOfDay+"\t"+"minute =>"+minute+      
    
"\nrealHourOfDay=>" + timePicker.getCurrentHour() + " realMinute=>" + timePicker.getCurrentMinute());
        } catch (Exception e) {
            Log.e(TAG,e.toString());
        }
    }
}