日期选择器对话框验证...！ [英] Datepicker Dialog Validation...!
本文介绍了日期选择器对话框验证...！的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我创建一个计算时代的应用程序。结果
这个程序能正常工作，但现在我希望把验证在日期选择器对话框。结果
当用户通过日期选择器对话框，搜索设置日期
然后点击用户无法设置BIRTHDATE GREATERTHAN CURRENT DATE ...
结果
我该怎么办？结果
这里是我的code ...结果
AgeCalculator.java
包com.example.agecalculator;进口的java.util.Calendar;进口android.app.Activity;
进口android.app.DatePickerDialog;
进口android.app.Dialog;
进口android.os.Bundle;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.DatePicker;
进口android.widget.TextView;公共类AgeCalculator扩展活动实现OnClickListener {
TextView中的currentdate，出生日期，ageDisplay;
AgeCalculation年龄=无效;
静态最终诠释DATE_START_DIALOG_ID = 0;
私人INT startYear = 2015;
私人INT startMonth = 0;
私人INT朝九特派= 8; @覆盖
保护无效的onCreate（捆绑savedInstanceState）{ super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_main）;
年龄=新AgeCalculation（）;
的currentdate =（的TextView）findViewById（R.id.txtSysDate）;
currentDate.setText（age.getCurrentDate（））;
生日=（的TextView）findViewById（R.id.txtBirthDate）;
birthDate.setOnClickListener（本）;
ageDisplay =（的TextView）findViewById（R.id.txtAge）;
日历有效= Calendar.getInstance（）;
INT validYear = valid.get（Calendar.YEAR）;
INT validMonth = valid.get（的Calendar.MONTH）;
INT validDay = valid.get（Calendar.DAY_OF_MONTH）; } @覆盖
保护对话框onCreateDialog（INT ID）{
开关（ID）{
案例DATE_START_DIALOG_ID：
返回新DatePickerDialog（这一点，mDateSetListener，startYear，
startMonth，朝九特派）;
}
返回null;
} 私人最终DatePickerDialog.OnDateSetListener mDateSetListener =新DatePickerDialog.OnDateSetListener（）{
@覆盖
公共无效onDateSet（查看的DatePicker，诠释selectedYear，
INT selectedMonth，诠释selectedDay）{
startYear = selectedYear;
startMonth = selectedMonth;
朝九特派= selectedDay;
age.setDateOfBirth（startYear，startMonth，朝九特派）;
birthDate.setText（selectedDay + - +（startMonth + 1）+ -
+ startYear）;
calculateAge（）;
}
}; @覆盖
公共无效的onClick（视图v）{
开关（v.getId（））{
案例R.id.txtBirthDate：
的ShowDialog（DATE_START_DIALOG_ID）;
打破; 默认：
打破;
}
} 私人无效calculateAge（）{
age.calcualteYear（）;
age.calcualteMonth（）;
age.calcualteDay（）; ageDisplay.setText（age.getResult（））;
}
// TODO自动生成方法存根}
AgeCalculation.java
包com.example.agecalculator;进口的java.util.Calendar;公共类AgeCalculation {
私人日历结束;
私人日历启动;
私人诠释endYear;
私人诠释endMonth;
私人诠释endday指定;
私人诠释startYear;
私人诠释startMonth;
私人诠释朝九特派;
私人诠释calYear;
私人诠释calMonth;
私人诠释calDay; 公共字符串getCurrentDate（）{
结束= Calendar.getInstance（）;
endYear = end.get（Calendar.YEAR）;
endMonth = end.get（的Calendar.MONTH）;
endMonth ++;
endday指定= end.get（Calendar.DAY_OF_MONTH）;
返回endday指定+ - + endMonth + - + endYear; } 公共无效setDateOfBirth（INT SYEAR，诠释sMonth，诠释SDAY）{
startYear = SYEAR;
startMonth = sMonth;
startMonth ++;
朝九特派= SDAY; 如果（SYEAR＆GT; endYear）{ } } 公共无效calcualteYear（）{
calYear = endYear - startYear; } 公共无效calcualteMonth（）{
如果（endMonth＆GT; = startMonth）{
calMonth = endMonth - startMonth;
}其他{
calMonth = endMonth - startMonth;
calMonth = 12 + calMonth;
calYear--;
} } 公共无效calcualteDay（）{ 如果（endday指定＆GT; =朝九特派）{
calDay = endday指定 - 朝九特派;
}其他{
calDay = endday指定 - 朝九特派;
calDay = 30 + calDay;
如果（calMonth == 0）{
calMonth = 11;
calYear--;
}其他{
calMonth--;
} }
} 公共字符串的getResult（）{
回归日：+ calDay +\\ n+月+ calMonth +\\ n+年：
+ calYear;
} 众长getSeconde（）{
开始= Calendar.getInstance（）;
start.set（Calendar.YEAR，startYear）;
start.set（的Calendar.MONTH，startMonth）;
start.set（Calendar.DAY_OF_MONTH，朝九特派）;
start.set（Calendar.HOUR，12）;
start.set（Calendar.MINUTE，30）;
start.set（Calendar.SECOND，60）;
start.set（Calendar.MILLISECOND，60）;
长今= end.getTimeInMillis（）;
长老= start.getTimeInMillis（）;
长差异=老 - 现在;
返回差异/ 1000;
}}
解决方案
我得到了解决。
我用低于code在我的设置验证的应用程序在 DataPicker 对话框。
//全局声明 日历preferDate1 =新的GregorianCalendar（）;
日历preferDate2 =新的GregorianCalendar（）;
最后的日历C = Calendar.getInstance（）;
年= c.get（Calendar.YEAR）;
月= c.get（的Calendar.MONTH）;
天= c.get（Calendar.DAY_OF_MONTH）;
私人诠释的年，月，日;
//这里preferredDate1和preferredDate2是的TextView
preferredDate1.setOnClickListener（新OnClickListener（）{ @燮pressLint（NewApi）
@覆盖
公共无效的onClick（视图v）{
DatePickerDialog DP =新DatePickerDialog（MainActivity.this，prefferedDate1Picker，preferDate1
获得（Calendar.YEAR），preferDate1.get（的Calendar.MONTH），preferDate1.get（Calendar.DAY_OF_MONTH））;
。dp.getDatePicker（）setMinDate（c.getTimeInMillis（））;
dp.show（）;
}
}）; 私人最终DatePickerDialog.OnDateSetListener prefferedDate1Picker =新DatePickerDialog.OnDateSetListener（）{ @覆盖
公共无效onDateSet（查看的DatePicker，诠释selectedYear，诠释selectedMonth，诠释selectedDay）{
preferDate1 =新的GregorianCalendar（selectedYear，selectedMonth，selectedDay）;
preferredDate2.setText（）;
preferredDate1.setText（（selectedDay小于100+将String.valueOf（selectedDay）：将String.valueOf（selectedDay））+/
+（selectedMonth + 1小于100+将String.valueOf（（selectedMonth + 1））：将String.valueOf（（selectedMonth + 1）））
+/+ selectedYear）; }
};
//这将根据preferredDate1设置日期
//根据你的需要改变这里。如果你想添加或删除1个月然后根据数据集。在此我想补充一天第二个数据采集器。
preferredDate2.setOnClickListener（新OnClickListener（）{ @燮pressLint（NewApi）
@覆盖
公共无效的onClick（视图v）{
DatePickerDialog DP2 =新DatePickerDialog（MainActivity.this，prefferedDate2Picker，preferDate2
获得（Calendar.YEAR），preferDate2.get（的Calendar.MONTH），preferDate2.get（Calendar.DAY_OF_MONTH））; 长毫= preferDate1.getTimeInMillis（）+ 86400000L;
dp2.getDatePicker（）setMinDate（毫）。
dp2.show（）; }
}）; 私人最终DatePickerDialog.OnDateSetListener prefferedDate2Picker =新DatePickerDialog.OnDateSetListener（）{ @覆盖
公共无效onDateSet（查看的DatePicker，诠释selectedYear，诠释selectedMonth，诠释selectedDay）{
preferDate2 =新的GregorianCalendar（selectedYear，selectedMonth，selectedDay + 1）;
preferredDate2.setText（（selectedDay小于100+将String.valueOf（selectedDay）：将String.valueOf（selectedDay））+/
+（selectedMonth + 1小于100+将String.valueOf（（selectedMonth + 1））：将String.valueOf（（selectedMonth + 1）））
+/+ selectedYear）; }
};
I create app for calculate AGE.
This app works fine, but now I want to put Validation in datepicker Dialog.
when user set date through datepicker dialog,
then USER CAN NOT SET BIRTHDATE GREATERTHAN CURRENT DATE...
what should I do?
here is my code...
AgeCalculator.java
package com.example.agecalculator;
import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.DatePicker;
import android.widget.TextView;
public class AgeCalculator extends Activity implements OnClickListener {
TextView currentDate, birthDate, ageDisplay;
AgeCalculation age = null;
static final int DATE_START_DIALOG_ID = 0;
private int startYear = 2015;
private int startMonth = 0;
private int startDay = 8;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
age = new AgeCalculation();
currentDate = (TextView) findViewById(R.id.txtSysDate);
currentDate.setText(age.getCurrentDate());
birthDate = (TextView) findViewById(R.id.txtBirthDate);
birthDate.setOnClickListener(this);
ageDisplay = (TextView) findViewById(R.id.txtAge);
Calendar valid = Calendar.getInstance();
int validYear = valid.get(Calendar.YEAR);
int validMonth = valid.get(Calendar.MONTH);
int validDay = valid.get(Calendar.DAY_OF_MONTH);
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DATE_START_DIALOG_ID:
return new DatePickerDialog(this, mDateSetListener, startYear,
startMonth, startDay);
}
return null;
}
private final DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
startYear = selectedYear;
startMonth = selectedMonth;
startDay = selectedDay;
age.setDateOfBirth(startYear, startMonth, startDay);
birthDate.setText(selectedDay + "-" + (startMonth + 1) + "-"
+ startYear);
calculateAge();
}
};
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.txtBirthDate:
showDialog(DATE_START_DIALOG_ID);
break;
default:
break;
}
}
private void calculateAge() {
age.calcualteYear();
age.calcualteMonth();
age.calcualteDay();
ageDisplay.setText(age.getResult());
}
// TODO Auto-generated method stub
}
AgeCalculation.java
package com.example.agecalculator;
import java.util.Calendar;
public class AgeCalculation {
private Calendar end;
private Calendar start;
private int endYear;
private int endMonth;
private int endDay;
private int startYear;
private int startMonth;
private int startDay;
private int calYear;
private int calMonth;
private int calDay;
public String getCurrentDate() {
end = Calendar.getInstance();
endYear = end.get(Calendar.YEAR);
endMonth = end.get(Calendar.MONTH);
endMonth++;
endDay = end.get(Calendar.DAY_OF_MONTH);
return endDay + "-" + endMonth + "-" + endYear;
}
public void setDateOfBirth(int sYear, int sMonth, int sDay) {
startYear = sYear;
startMonth = sMonth;
startMonth++;
startDay = sDay;
if (sYear > endYear) {
}
}
public void calcualteYear() {
calYear = endYear - startYear;
}
public void calcualteMonth() {
if (endMonth >= startMonth) {
calMonth = endMonth - startMonth;
} else {
calMonth = endMonth - startMonth;
calMonth = 12 + calMonth;
calYear--;
}
}
public void calcualteDay() {
if (endDay >= startDay) {
calDay = endDay - startDay;
} else {
calDay = endDay - startDay;
calDay = 30 + calDay;
if (calMonth == 0) {
calMonth = 11;
calYear--;
} else {
calMonth--;
}
}
}
public String getResult() {
return "Day: " + calDay + "\n" + "Month:" + calMonth + "\n" + "Year:"
+ calYear;
}
public long getSeconde() {
start = Calendar.getInstance();
start.set(Calendar.YEAR, startYear);
start.set(Calendar.MONTH, startMonth);
start.set(Calendar.DAY_OF_MONTH, startDay);
start.set(Calendar.HOUR, 12);
start.set(Calendar.MINUTE, 30);
start.set(Calendar.SECOND, 60);
start.set(Calendar.MILLISECOND, 60);
long now = end.getTimeInMillis();
long old = start.getTimeInMillis();
long diff = old - now;
return diff / 1000;
}
}
解决方案
I got the solution.
I use below code in my application for set validation in DataPicker Dialog.
// Global declaration
Calendar preferDate1 = new GregorianCalendar();
Calendar preferDate2 = new GregorianCalendar();
final Calendar c = Calendar.getInstance();
year = c.get(Calendar.YEAR);
month = c.get(Calendar.MONTH);
day = c.get(Calendar.DAY_OF_MONTH);
private int year, month, day;
// here preferredDate1 and preferredDate2 are textview
preferredDate1.setOnClickListener(new OnClickListener() {
@SuppressLint("NewApi")
@Override
public void onClick(View v) {
DatePickerDialog dp = new DatePickerDialog(MainActivity.this, prefferedDate1Picker, preferDate1
.get(Calendar.YEAR), preferDate1.get(Calendar.MONTH), preferDate1.get(Calendar.DAY_OF_MONTH));
dp.getDatePicker().setMinDate(c.getTimeInMillis());
dp.show();
}
});
private final DatePickerDialog.OnDateSetListener prefferedDate1Picker = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int selectedYear, int selectedMonth, int selectedDay) {
preferDate1 = new GregorianCalendar(selectedYear, selectedMonth, selectedDay);
preferredDate2.setText("");
preferredDate1.setText((selectedDay < 10 ? "0" + String.valueOf(selectedDay) : String.valueOf(selectedDay)) + "/"
+ (selectedMonth + 1 < 10 ? "0" + String.valueOf((selectedMonth + 1)) : String.valueOf((selectedMonth + 1)))
+ "/" + selectedYear);
}
};
// This will set date based on preferredDate1
// change here according to your need. If you want to add or remove one month then set based on data. In this I add one day in second data picker.
preferredDate2.setOnClickListener(new OnClickListener() {
@SuppressLint("NewApi")
@Override
public void onClick(View v) {
DatePickerDialog dp2 = new DatePickerDialog(MainActivity.this, prefferedDate2Picker, preferDate2
.get(Calendar.YEAR), preferDate2.get(Calendar.MONTH), preferDate2.get(Calendar.DAY_OF_MONTH));
long mili = preferDate1.getTimeInMillis() + 86400000L;
dp2.getDatePicker().setMinDate(mili);
dp2.show();
}
});
private final DatePickerDialog.OnDateSetListener prefferedDate2Picker = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int selectedYear, int selectedMonth, int selectedDay) {
preferDate2 = new GregorianCalendar(selectedYear, selectedMonth, selectedDay+1);
preferredDate2.setText((selectedDay < 10 ? "0" + String.valueOf(selectedDay) : String.valueOf(selectedDay)) + "/"
+ (selectedMonth + 1 < 10 ? "0" + String.valueOf((selectedMonth + 1)) : String.valueOf((selectedMonth + 1)))
+ "/" + selectedYear);
}
};
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