Android DatePicker Диалог limit min year и max year

Question

Я некоторое время сражался с частью своего кода, чтобы установить ограничение по возрасту на datepickerdialog, но он не работает, я исследовал, но ни одно из решений, похоже, не работает , Вот мой код до сих пор:

EditText birthdate=(EditText) findViewById(R.id.register_birth); 
    public void getdate() { 
     final Calendar 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(); 
      } 

     }; 
     birthdate.setOnTouchListener(new View.OnTouchListener() { 

      @SuppressLint("ClickableViewAccessibility") 
      @Override 
      public boolean onTouch(View v, MotionEvent event) { 
       if (event.getAction() == MotionEvent.ACTION_DOWN) { 
        new DatePickerDialog(Register.this, date, myCalendar 
          .get(Calendar.YEAR), myCalendar 
          .get(Calendar.MONTH), myCalendar 
          .get(Calendar.DAY_OF_MONTH)).show(); 

       } 
       return true; 
      } 
     }); 

    } 

    private void updateLabel() { 

     String myFormat = "MM/dd/yy"; 
     SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US); 
     final Calendar myCalendar = Calendar.getInstance(); 

     birthdate.setText(sdf.format(myCalendar.getTime())); 
    } 

Answer 1

Ваш код должен выглядеть следующим образом

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    mDateDisplay = (TextView) findViewById(R.id.dateDisplay); 
    mPickDate = (Button) findViewById(R.id.pickDate); 

    mPickDate.setOnClickListener(this); 

    final Calendar c = Calendar.getInstance(); 
    mYear = c.get(Calendar.YEAR); 
    mMonth = c.get(Calendar.MONTH); 
    mDay = c.get(Calendar.DAY_OF_MONTH); 

    maxYear = mYear - 7; 
    maxMonth = mMonth; 
    maxDay = mDay; 

    minYear = mYear - 18; 
    minMonth = mMonth; 
    minDay = mDay; 

    // display the current date (this method is below) 
    updateDisplay(maxYear, maxMonth, maxDay); 

} 

private void updateDisplay(int year, int month, int day) { 
    // TODO Auto-generated method stub 
    mDateDisplay.setText(new StringBuilder() 
      // Month is 0 based so add 1 
      .append(month + 1).append("-").append(day).append("-") 
      .append(year).append(" ")); 

} 

@Override 
public void onClick(View v) { 
    // TODO Auto-generated method stub 
    showDialog(DATE_DIALOG_ID); 

} 

private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() { 

    public void onDateSet(DatePicker view, int year, int monthOfYear, 
      int dayOfMonth) { 
     /* 
     * mYear = year; 
     * mMonth = monthOfYear; 
     * mDay = dayOfMonth; 
     */ 
     // updateDisplay(); 



     if (year > maxYear ||monthOfYear > maxMonth && year == maxYear|| 
       dayOfMonth > maxDay && year == maxYear && monthOfYear == maxMonth){ 

      view.updateDate(maxYear, maxMonth, maxDay); 
      updateDisplay(maxYear, maxMonth, maxDay); 

     } 
     else if (year < minYear ||monthOfYear < minMonth && year == minYear|| 
       dayOfMonth < minDay && year == minYear && monthOfYear == minMonth) { 

      view.updateDate(minYear, minMonth, minDay); 
      updateDisplay(minYear, minMonth, minDay); 
     } 
     else { 

      view.updateDate(year, monthOfYear, dayOfMonth); 
      updateDisplay(year, monthOfYear, dayOfMonth); 
     } 

    } 
}; 

@Override 
protected Dialog onCreateDialog(int id) { 
    switch (id) { 
    case DATE_DIALOG_ID: 
     return new DatePickerDialog(this, mDateSetListener, mYear - 7, 
       mMonth, mDay); 
    } 
    return null; 
} 
}