计算年龄使用出生日期

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本文介绍了计算年龄使用出生日期的处理方法,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

我开发一个Android应用程序,找到年龄由用户提供的出生日期..三个编辑,文本是一个人也没有了一天,另外两个为月份和年份。我得到了code从这个链接。但我不知道下一步该怎么做。 ..我给了code到目前为止,我创建了......请您检查,并帮助我...

main_activity.xml

< RelativeLayout的的xmlns:机器人=htt​​p://schemas.android/apk/res/android     的xmlns:工具=htt​​p://schemas.android/tool​​s     机器人:layout_width =match_parent     机器人:layout_height =match_parent     工具:上下文=MainActivity。>     <的EditText         机器人:ID =@ + ID / editText1         机器人:layout_width =WRAP_CONTENT         机器人:layout_height =WRAP_CONTENT         机器人:layout_alignParentRight =真         机器人:layout_alignParentTop =真         机器人:layout_marginRight =32dp         机器人:layout_marginTop =42dp         机器人:EMS =10         机器人:inputType =约会>         <不是requestFocus />     < /的EditText>     <的EditText         机器人:ID =@ + ID / editText2         机器人:layout_width =WRAP_CONTENT         机器人:layout_height =WRAP_CONTENT         机器人:layout_alignRight =@ + ID / editText1         机器人:layout_below =@ + ID / editText1         机器人:layout_marginTop =30dp         机器人:EMS =10         机器人:inputType =日期/>     <的EditText         机器人:ID =@ + ID / editText3         机器人:layout_width =WRAP_CONTENT         机器人:layout_height =WRAP_CONTENT         机器人:layout_alignRight =@ + ID / editText2         机器人:layout_below =@ + ID / editText2         机器人:layout_marginTop =24dp         机器人:EMS =10         机器人:inputType =日期/>     <按钮         机器人:ID =@ + ID /按钮1         机器人:layout_width =WRAP_CONTENT         机器人:layout_height =WRAP_CONTENT         机器人:layout_below =@ + ID / editText3         机器人:layout_centerHorizo​​ntal =真         机器人:layout_marginTop =82dp         机器人:的onClick =getAge         机器人:文本=按钮/>     <的TextView         机器人:ID =@ + ID / textView1         机器人:layout_width =WRAP_CONTENT         机器人:layout_height =WRAP_CONTENT         机器人:layout_alignLeft =@ + ID /按钮1         机器人:layout_below =@ + ID /按钮1         机器人:layout_marginTop =54dp         机器人:文本=TextView的/> < / RelativeLayout的>

MainActivity.java

公共类MainActivity延伸活动{     一个长= 0;     @覆盖     保护无效的onCreate(包savedInstanceState){         super.onCreate(savedInstanceState);         的setContentView(R.layout.activity_main);         EditText上ET1 =(EditText上)findViewById(R.id.editText1);         ET2的EditText =(EditText上)findViewById(R.id.editText2);         ET3的EditText =(EditText上)findViewById(R.id.editText3);         按钮BTN1 =(按钮)findViewById(R.id.button1);         TextView的TV1 =(TextView中)findViewById(R.id.textView1);     }     公众诠释getAge(INT _year,诠释_month,诠释_day){         GregorianCalendar的CAL =新的GregorianCalendar();         INT Y,M,D,A;         Y = cal.get(Calendar.YEAR);         M = cal.get(Calendar.MONTH);         D = cal.get(Calendar.DAY_OF_MONTH);         cal.set(_year,_month,_day);         一= Y - cal.get(Calendar.YEAR);         如果((M< cal.get(Calendar.MONTH))                         || ((米== cal.get(Calendar.MONTH))及及(D&其中;校准                                         获得(Calendar.DAY_OF_MONTH)))){                  - 一个;         }         如果(一个℃,)                 抛出新抛出:IllegalArgumentException(时代℃的);         返回; } }

解决方案

您应该添加一个点击监听到你的按钮,然后在里面,计算年龄和你的TextView中显示出来。

公共类MainActivity延伸活动{     一个长= 0;     @覆盖     保护无效的onCreate(包savedInstanceState){         super.onCreate(savedInstanceState);         的setContentView(R.layout.activity_main);         最后的EditText ET1 =(EditText上)findViewById(R.id.editText1);         最后的EditText ET2 =(EditText上)findViewById(R.id.editText2);         最后的EditText ET3 =(EditText上)findViewById(R.id.editText3);         按钮BTN1 =(按钮)findViewById(R.id.button1);         最后的TextView TV1 =(TextView中)findViewById(R.id.textView1);         btn1.setOnClickListener(新OnClickListener {             @覆盖             公共无效的onClick(视图v){                 INT天=的Integer.parseInt(et1.getText()的toString());                 INT月=的Integer.parseInt(et2.getText()的toString());                 INT年=的Integer.parseInt(et3.getText()的toString());                 tv1.setText(将String.valueOf(MainActivity.this.getAge(年,月,日)));             }         });     }     公众诠释getAge(INT _year,诠释_month,诠释_day){         GregorianCalendar的CAL =新的GregorianCalendar();         INT Y,M,D,A;         Y = cal.get(Calendar.YEAR);         M = cal.get(Calendar.MONTH);         D = cal.get(Calendar.DAY_OF_MONTH);         cal.set(_year,_month,_day);         一= Y - cal.get(Calendar.YEAR);         如果((M< cal.get(Calendar.MONTH))                         || ((米== cal.get(Calendar.MONTH))及及(D&其中;校准                                         获得(Calendar.DAY_OF_MONTH)))){                  - 一个;         }         如果(一个℃,)                 抛出新抛出:IllegalArgumentException(时代℃的);         返回;     } }

I am developing an android app to find the age from the date of birth provided by user.. three edit-texts are there one for day and other two for month and year. I got the code from this link.. But I dont know what to do next... I am giving the code so far I created... pls check and help me...

main_activity.xml

<RelativeLayout xmlns:android="schemas.android/apk/res/android" xmlns:tools="schemas.android/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" > <EditText android:id="@+id/editText1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_marginRight="32dp" android:layout_marginTop="42dp" android:ems="10" android:inputType="date" > <requestFocus /> </EditText> <EditText android:id="@+id/editText2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignRight="@+id/editText1" android:layout_below="@+id/editText1" android:layout_marginTop="30dp" android:ems="10" android:inputType="date" /> <EditText android:id="@+id/editText3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignRight="@+id/editText2" android:layout_below="@+id/editText2" android:layout_marginTop="24dp" android:ems="10" android:inputType="date" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/editText3" android:layout_centerHorizontal="true" android:layout_marginTop="82dp" android:onClick="getAge" android:text="Button" /> <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/button1" android:layout_below="@+id/button1" android:layout_marginTop="54dp" android:text="TextView" /> </RelativeLayout>

MainActivity.java

public class MainActivity extends Activity { long a =0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); EditText et1 = (EditText) findViewById (R.id.editText1); EditText et2 = (EditText) findViewById (R.id.editText2); EditText et3 = (EditText) findViewById (R.id.editText3); Button btn1 = (Button) findViewById (R.id.button1) ; TextView tv1 = (TextView) findViewById (R.id.textView1); } public int getAge (int _year, int _month, int _day) { GregorianCalendar cal = new GregorianCalendar(); int y, m, d, a; y = cal.get(Calendar.YEAR); m = cal.get(Calendar.MONTH); d = cal.get(Calendar.DAY_OF_MONTH); cal.set(_year, _month, _day); a = y - cal.get(Calendar.YEAR); if ((m < cal.get(Calendar.MONTH)) || ((m == cal.get(Calendar.MONTH)) && (d < cal .get(Calendar.DAY_OF_MONTH)))) { --a; } if(a < 0) throw new IllegalArgumentException("Age < 0"); return a; } }

解决方案

You should add a click listener to your button, then in it, calculate the age and display it in your TextView.

public class MainActivity extends Activity { long a =0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final EditText et1 = (EditText) findViewById (R.id.editText1); final EditText et2 = (EditText) findViewById (R.id.editText2); final EditText et3 = (EditText) findViewById (R.id.editText3); Button btn1 = (Button) findViewById (R.id.button1) ; final TextView tv1 = (TextView) findViewById (R.id.textView1); btn1.setOnClickListener(new OnClickListener{ @Override public void onClick (View v){ int day = Integer.parseInt(et1.getText().toString()); int month = Integer.parseInt(et2.getText().toString()); int year = Integer.parseInt(et3.getText().toString()); tv1.setText(String.valueOf(MainActivity.this.getAge(year, month, day))); } }); } public int getAge (int _year, int _month, int _day) { GregorianCalendar cal = new GregorianCalendar(); int y, m, d, a; y = cal.get(Calendar.YEAR); m = cal.get(Calendar.MONTH); d = cal.get(Calendar.DAY_OF_MONTH); cal.set(_year, _month, _day); a = y - cal.get(Calendar.YEAR); if ((m < cal.get(Calendar.MONTH)) || ((m == cal.get(Calendar.MONTH)) && (d < cal .get(Calendar.DAY_OF_MONTH)))) { --a; } if(a < 0) throw new IllegalArgumentException("Age < 0"); return a; } }

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计算年龄使用出生日期

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