Android的日期选择器监听器不工作一次以上.. [英] Android date picker listener doesn't work more than one time..

问题描述

我有，我有两个日期选择器的活动，起初我用这些语句初始化它们

 公共类生日延伸活动{日历C = Calendar.getInstance（）;
    INT currentYear = c.get（Calendar.YEAR）;
    INT currentMonth = c.get（的Calendar.MONTH）;
    INT CURRENTDAY = c.get（Calendar.DAY_OF_MONTH）;
  公共无效的onCreate（捆绑savedInstanceState）
{ super.onCreate（savedInstanceState）; 的setContentView（R.layout.birthdate）;    DatePicker的birthDayDatePicker，periodDatePicker;
            birthDayDatePicker =（的DatePicker）findViewById（R.id.DatePickerBirthDay）;
            periodDatePicker =（的DatePicker）findViewById（R.id.DatePickerPeriod）;
             periodDatePicker.init（currentYear，currentMonth，CURRENTDAY，新OnDateChangedListener（）
            {                @覆盖
                公共无效onDateChanged（的DatePicker为arg0，ARG1 INT，INT ARG2，诠释ARG3）{
                    // TODO自动生成方法存根
                    birthDateCalculations（）;
                }
            }）;            birthDayDatePicker.init（currentYear，currentMonth，CURRENTDAY，新OnDateChangedListener（）{                @覆盖
                公共无效onDateChanged（的DatePicker为arg0，ARG1 INT，INT ARG2，诠释ARG3）{
                    // TODO自动生成方法存根                    periodDateCalculations（）;                    }
            }）;    }}
 

我意识到，那些听众只发生过一次，好像是我在日期选择器再次点击,,报表将不会被应用..
我想办法，我点击日期选择器每次有一个监听器是活动的。

在此先感谢！

解决方案

  birthDayDatePicker =（的DatePicker）findViewById（R.id.DatePickerBirthDay）;
        periodDatePicker =（的DatePicker）findViewById（R.id.DatePickerPeriod）;        //初始化期间日期选择器与当前的日期和日期变化监听
        periodDatePicker.init（currentYear，currentMonth，CURRENTDAY，新OnDateChangedListener（）
        {            @覆盖
            公共无效onDateChanged（DatePicker的periodDatePicker，诠释currentYear，诠释currentMonth，诠释CURRENTDAY）{
                // TODO自动生成方法存根
                数= 1;
                birthDayDatePicker.init（currentYear，currentMonth，CURRENTDAY，NULL）;
                birthDateCalculations（）;            }
        }）;        //初始化出生日期选择器与当前的日期和日期变化监听
        birthDayDatePicker.init（currentYear，currentMonth，CURRENTDAY，新OnDateChangedListener（）{            @覆盖
            公共无效onDateChanged（DatePicker的birthDayDatePicker，诠释currentYear，诠释currentMonth，诠释CURRENTDAY）{
                // TODO自动生成方法存根
                数= 2;
                periodDatePicker.init（currentYear，currentMonth，CURRENTDAY，NULL）;
                periodDateCalculations（）;                }
        }）;}＆GT;大段引用
 

I have an activity in which I have two date pickers, at first I initialise them by those statements

    public class birthDate extends Activity{

Calendar c = Calendar.getInstance();
    int currentYear = c.get(Calendar.YEAR); 
    int currentMonth = c.get(Calendar.MONTH);
    int currentDay = c.get(Calendar.DAY_OF_MONTH);
  public void onCreate(Bundle savedInstanceState) 
{

 super.onCreate(savedInstanceState);  

 setContentView(R.layout.birthdate);

    DatePicker birthDayDatePicker,periodDatePicker;
            birthDayDatePicker = (DatePicker)findViewById(R.id.DatePickerBirthDay);
            periodDatePicker = (DatePicker)findViewById(R.id.DatePickerPeriod);
             periodDatePicker.init(currentYear, currentMonth, currentDay, new OnDateChangedListener()
            {

                @Override
                public void onDateChanged(DatePicker arg0, int arg1, int arg2,int arg3) {
                    // TODO Auto-generated method stub
                    birthDateCalculations();
                }
            });

            birthDayDatePicker.init(currentYear, currentMonth, currentDay, new OnDateChangedListener() {

                @Override
                public void onDateChanged(DatePicker arg0, int arg1, int arg2, int arg3) {
                    // TODO Auto-generated method stub

                    periodDateCalculations();

                    }
            });

    }}

I realised that those listeners only happened once, as if I clicked again on the date picker,, the statements won't be applied .. I want a way to have a listener that is active every time I click on the date picker.

Thanks in advance !

解决方案

 birthDayDatePicker = (DatePicker)findViewById(R.id.DatePickerBirthDay);
        periodDatePicker = (DatePicker)findViewById(R.id.DatePickerPeriod);

        //initialize period date picker with current date and on date change listener 
        periodDatePicker.init(currentYear, currentMonth, currentDay, new OnDateChangedListener()
        {

            @Override
            public void onDateChanged(DatePicker periodDatePicker, int currentYear, int currentMonth,int currentDay) {
                // TODO Auto-generated method stub
                Number = 1;
                birthDayDatePicker.init(currentYear, currentMonth, currentDay, null);
                birthDateCalculations();

            }
        });

        //initialize birth date picker with current date and on date change listener 
        birthDayDatePicker.init(currentYear, currentMonth, currentDay, new OnDateChangedListener () {

            @Override
            public void onDateChanged(DatePicker birthDayDatePicker, int currentYear, int currentMonth, int currentDay) {
                // TODO Auto-generated method stub
                Number = 2;
                periodDatePicker.init(currentYear, currentMonth, currentDay, null);
                periodDateCalculations();

                }
        });

}

> Blockquote

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