生日剩余天数计算

女爷i 2022-07-16 21:12 338阅读 0赞

Birthday.class

  1. package com.example.sendmsg;
  3. import java.text.SimpleDateFormat;
  4. import java.util.Calendar;
  5. import java.util.Date;
  7. import android.content.Context;
  8. import android.graphics.Bitmap;
  9. import android.util.Log;
  11. public class Birthday {
  13.     private Context context;
  14.     private Bitmap personIcon;
  15.     private String name;
  16.     private String datas;
  17.     private String phone_number;
  18.     private String day;
  19.     private long days = 0;
  22.     public Bitmap getPersonIcon() {
  23.         return personIcon;
  24.     }
  27.     public void setPersonIcon(Bitmap personIcon) {
  28.         this.personIcon = personIcon;
  29.     }
  32.     public String getName() {
  33.         return name;
  34.     }
  37.     public void setName(String name) {
  38.         this.name = name;
  39.     }
  42.     public String getDatas() {
  43.         return datas;
  44.     }
  47.     public void setDatas(String datas) {
  48.         this.datas = datas;
  49.     }
  52.     public String getPhone_number() {
  53.         return phone_number;
  54.     }
  57.     public void setPhone_number(String phone_number) {
  58.         this.phone_number = phone_number;
  59.     }
  62.     public String getDay() {
  63.         return day;
  64.     }
  67.     public void setDay(String day) {
  68.         this.day = day;
  69.     }
  71.     //剩余天数计算：
  72.     public String getBirthday(String birthday) {
  73.             //String birthday = "2013-03-18";
  75.             SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
  76.             Calendar cal = Calendar.getInstance();
  77.             int yearNow = cal.get(Calendar.YEAR);// 获得当前年份
  78.             try {
  79.                 Log.i("Birthday_time", formatter.parse(birthday) + "");
  80.                 cal.setTime(formatter.parse(birthday));
  81.             } catch (Exception e) {
  82.                 e.printStackTrace();
  83.             }
  84.             int birthyear = cal.get(Calendar.YEAR);
  85.             Log.i("Birthday_year", birthyear + "");
  86.             while (birthyear < yearNow) {
  87.                 cal.set(Calendar.YEAR, cal.get(Calendar.YEAR) + 1);
  88.                 birthyear = cal.get(Calendar.YEAR);
  89.                 Log.i("Birthday_year++", birthyear + "");
  90.             }
  91.             Date ed = new Date();
  92.             Log.i("Date_ed", ed + "");
  93.             Date sd = cal.getTime();
  94.             Log.i("Date_sd", ed + "");
  95.             days = 0;
  96.             if ((ed.getTime() - sd.getTime()) / (3600 * 24 * 1000) < 0) {
  97.    //>
  98.                 days = -((ed.getTime() - sd.getTime()) / (3600 * 24 * 1000)) + 1;
  99.                 System.out.println("距离你生日还有" + days + "天");
  100.             } else {
  101.                 cal.set(Calendar.YEAR, cal.get(Calendar.YEAR) + 1);
  102.                 sd = cal.getTime();
  103.                 days = -((ed.getTime() - sd.getTime()) / (3600 * 24 * 1000)) + 1;
  104.                 System.out.println("距离你生日还有" + days + "天");
  105.             }
  106.             if(days == 366L) days = 1;
  107.             if(days == 365L) days = 0;
  108.             String days_ = Long.toString(days);
  109.             return days_;
  110.     }
  111. }

这是我写得一个小的生日记录的demo：(这里面包含了添加，删除，多是在一个Activity内，通讯录获取的可以不用写，跟上个博客连在一起的。)

birthdayActivity.class

  1. package com.example.sendmsg;
  3. import java.util.ArrayList;
  4. import java.util.Calendar;
  5. import java.util.Date;
  6. import java.util.Locale;
  9. import android.annotation.SuppressLint;
  10. import android.app.ActionBar;
  11. import android.app.Activity;
  12. import android.app.AlertDialog;
  13. import android.app.DatePickerDialog;
  14. import android.content.DialogInterface;
  15. import android.content.Intent;
  16. import android.os.Bundle;
  17. import android.view.View;
  18. import android.view.View.OnClickListener;
  19. import android.widget.AdapterView;
  20. import android.widget.AdapterView.OnItemClickListener;
  21. import android.widget.AdapterView.OnItemLongClickListener;
  22. import android.widget.Button;
  23. import android.widget.DatePicker;
  24. import android.widget.EditText;
  25. import android.widget.ImageView;
  26. import android.widget.LinearLayout;
  27. import android.widget.ListView;
  28. import android.widget.TextView;
  29. import android.widget.Toast;
  31. @SuppressLint("NewApi") public class BirthListActivity extends Activity{
  34.     //1界面
  35.     private ListView festival_list1;
  36.     private ImageView image;
  37.     private ImageView back_image;
  38.     private TextView text_name;
  39.     private BirthdayAdapter adapter;
  40.     private ArrayList<Birthday> birth_lists = new ArrayList<Birthday>();
  41.     //2界面
  42.     private ListView person_list;
  43.     private LinearLayout secondActivity;
  44.     private TextView data;
  45.     private EditText person;
  46.     private Button search_btn;
  47.     private Button add_main;
  48.     private Button back;
  49.     private LinearLayout add_person;
  50.     private LinearLayout add_date;
  51.     private int year,month,day;
  52.     private String datas;
  53.     private String days;
  54.     private String number;
  55.     private String name;
  56.     private ArrayList<Birthday> personlist;
  57.     @SuppressLint("NewApi") @Override
  58.     protected void onCreate(Bundle savedInstanceState) {
  59.         // TODO Auto-generated method stub
  60.         super.onCreate(savedInstanceState);
  61.         setContentView(R.layout.birth_list);
  62.         festival_list1 = (ListView) findViewById(R.id.birth_list);
  63.         image = (ImageView) findViewById(R.id.add_birthday);
  64.         image.setBackgroundResource(R.drawable.add);
  65.         back_image = (ImageView) findViewById(R.id.main_image);
  66.         secondActivity = (LinearLayout) findViewById(R.id.secondActivity);
  69.         back_image.setOnClickListener(new BackClick());
  70.         InsertSqlite insql = new InsertSqlite(BirthListActivity.this);
  71.         birth_lists = insql.selectAllBirth();
  73.         adapter = new BirthdayAdapter(this, birth_lists);
  74.         festival_list1.setAdapter(adapter);
  76.         ActionBar actionBar = getActionBar();  
  77.         actionBar.hide();
  78.         festival_list1.setOnItemLongClickListener(new BirthListClick());
  80.         image.setOnClickListener(new OnClickListener() {
  82.             @Override
  83.             public void onClick(View arg0) {
  84.                 // TODO Auto-generated method stub
  85.                 festival_list1.setVisibility(arg0.GONE);
  86.                 secondActivity.setVisibility(arg0.VISIBLE);
  89.                 init();
  90.                 //初始化Calendar日历对象
  91.                 Calendar mycalendar=Calendar.getInstance(Locale.CHINA);
  92.                 Date mydate=new Date(); //获取当前日期Date对象
  93.                 mycalendar.setTime(mydate);为Calendar对象设置时间为当前日期
  95.                 year=mycalendar.get(Calendar.YEAR); //获取Calendar对象中的年
  96.                 month=mycalendar.get(Calendar.MONTH);//获取Calendar对象中的月
  97.                 day=mycalendar.get(Calendar.DAY_OF_MONTH);//获取这个月的第几天
  99.                 data.setText(year+"-"+(month+1)+"-"+day); //显示当前的年月日
  100.                 add_date.setOnClickListener(new Add_dataClick());
  101.                 add_main.setOnClickListener(new AddPersonClick());
  102.                 back.setOnClickListener(new BackOnclick());
  104.                 //通讯录
  106.                 search_btn.setOnClickListener(new PersonClick());
  107.                 person_list.setOnItemClickListener(new PersonList());
  108.             }
  109.         });
  113.     }
  115.     public void init(){
  116.         data = (TextView) findViewById(R.id.data);
  117.         person = (EditText) findViewById(R.id.person);
  118.         search_btn = (Button) findViewById(R.id.search_btn);
  119.         add_person = (LinearLayout) findViewById(R.id.add_person);
  120.         add_date = (LinearLayout) findViewById(R.id.add_date);
  121.         add_main = (Button) findViewById(R.id.add_main);
  122.         back = (Button) findViewById(R.id.back);
  123.         person_list = (ListView) findViewById(R.id.person_list);
  124.     }
  125.     //search
  126.     class PersonClick implements OnClickListener{
  128.         @Override
  129.         public void onClick(View arg0) {
  130.             // TODO Auto-generated method stub
  131.             person_list.setVisibility(arg0.VISIBLE);
  132.             InsertSqlite insql = new InsertSqlite(BirthListActivity.this);
  133.             String name = person.getText().toString();
  134.             if(name.isEmpty()){
  135.                 personlist = insql.getPhone();
  136.                 PersonAdapter personadapter = new PersonAdapter(BirthListActivity.this, personlist);
  137.                 person_list.setAdapter(personadapter);
  138.             }else{
  139.                 personlist = insql.getPhone_num(name);
  140.                 if(personlist.size()>0){
  141.                     PersonAdapter personadapter = new PersonAdapter(BirthListActivity.this, personlist);
  142.                     person_list.setAdapter(personadapter);
  143.                 }else{
  144.                     Toast.makeText(BirthListActivity.this, "查无此人", Toast.LENGTH_LONG).show();
  145.                 }
  146.             }
  148.         }
  150.     }
  152.     //ListItem
  153.     class PersonList implements OnItemClickListener{
  155.         @Override
  156.         public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
  157.                 long arg3) {
  158.             // TODO Auto-generated method stub
  159.             TextView text1 = (TextView) arg1.findViewById(R.id.phone_name);
  160.             TextView text2 = (TextView) arg1.findViewById(R.id.phone_number);
  161.             name = text1.getText().toString();
  162.             number = text2.getText().toString();
  163.             person.setText(name); 
  165.         }
  167.     }
  170.     class Add_dataClick implements OnClickListener{
  172.         @Override
  173.         public void onClick(View arg0) {
  174.             // TODO Auto-generated method stub
  176.             /**
  177.              * 构造函数原型：
  178.              * public DatePickerDialog (Context context, DatePickerDialog.OnDateSetListener callBack, 
  179.              * int year, int monthOfYear, int dayOfMonth) 
  180.              * content组件运行Activity，
  181.              * DatePickerDialog.OnDateSetListener：选择日期事件
  182.              * year：当前组件上显示的年，monthOfYear：当前组件上显示的月，dayOfMonth：当前组件上显示的第几天
  183.              * 
  184.              */
  185.             //创建DatePickerDialog对象
  186.             DatePickerDialog dpd=new DatePickerDialog(BirthListActivity.this,Datelistener,year,month,day);
  187.             dpd.show();//显示DatePickerDialog组件
  192.         }
  194.         private DatePickerDialog.OnDateSetListener Datelistener=new DatePickerDialog.OnDateSetListener()
  195.         {
  196.             /**params：view：该事件关联的组件
  197.              * params：myyear：当前选择的年
  198.              * params：monthOfYear：当前选择的月
  199.              * params：dayOfMonth：当前选择的日
  200.              */
  201.             @Override
  202.             public void onDateSet(DatePicker view, int myyear, int monthOfYear,int dayOfMonth) {
  205.                 //修改year、month、day的变量值，以便以后单击按钮时，DatePickerDialog上显示上一次修改后的值
  206.                 year=myyear;
  207.                 month=monthOfYear;
  208.                 day=dayOfMonth;
  209.                 //更新日期
  210.                 updateDate();
  212.             }
  213.             //当DatePickerDialog关闭时，更新日期显示
  214.             private void updateDate()
  215.             {
  216.                 //在TextView上显示日期
  218.                 Birthday bir = new Birthday();
  219.                 datas = year+"-"+(month+1)+"-"+day;
  221.                 days = bir.getBirthday(datas);
  223.                 data.setText(datas);
  224.                // Toast.makeText(DataRemind.this, "data:"+datas, Toast.LENGTH_LONG).show();
  225.             }
  226.         };
  228.     }
  230.     class AddPersonClick implements OnClickListener{
  232.         @Override
  233.         public void onClick(View arg0) {
  234.             // TODO Auto-generated method stub
  235.             InsertSqlite insql = new InsertSqlite(BirthListActivity.this);
  236.             String name = person.getText().toString();
  238.             Birthday bir = new Birthday();
  239.             datas = year+"-"+(month+1)+"-"+day;
  240.             days = bir.getBirthday(datas);
  241.             data.setText(datas);
  242.             datas = data.getText().toString();
  243.             if(name.isEmpty()){
  244.                 Toast.makeText(BirthListActivity.this, "请检查名字或日期", Toast.LENGTH_LONG).show();
  245.             }else{
  246.                 boolean bool = insql.insertBirthday(name, datas, days, number);
  247.                 if(bool){
  248.                     Toast.makeText(BirthListActivity.this, "添加成功!", Toast.LENGTH_LONG).show();
  249.                     secondActivity.setVisibility(arg0.GONE);
  250.                     festival_list1.setVisibility(arg0.VISIBLE);
  251.                 }else{
  252.                     Toast.makeText(BirthListActivity.this, "添加失败", Toast.LENGTH_LONG).show();
  253.                 }
  254.             }
  255.         }
  257.     }
  259.     class BackOnclick implements OnClickListener{
  261.         @Override
  262.         public void onClick(View arg0) {
  263.             // TODO Auto-generated method stub
  264.             secondActivity.setVisibility(arg0.GONE);
  265.             festival_list1.setVisibility(arg0.VISIBLE);
  266.         }
  268.     }
  271.     class BirthListClick implements OnItemLongClickListener{
  273.         @Override
  274.         public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
  275.                 int arg2, long arg3) {
  276.             // TODO Auto-generated method stub
  277.             text_name = (TextView) findViewById(R.id.birth_name);
  279.             //设置对话框标题
  280.             new AlertDialog.Builder(BirthListActivity.this).setTitle("系统提示")
  281.             .setMessage("是否删除此人生日").setPositiveButton("确定", new DialogInterface.OnClickListener() {
  283.                 @Override
  284.                 public void onClick(DialogInterface arg0, int arg1) {
  285.                     // TODO Auto-generated method stub
  286.                     InsertSqlite insql = new InsertSqlite(BirthListActivity.this);
  287.                     String name = text_name.getText().toString();
  289.                     Boolean bool = insql.deleteBirth(name);
  291.                     if(bool){
  292.                         Toast.makeText(BirthListActivity.this, "删除成功", Toast.LENGTH_LONG).show();
  293.                     }else{
  294.                         Toast.makeText(BirthListActivity.this, "删除失败", Toast.LENGTH_LONG).show();
  295.                     }
  296.                 }
  298.             }).setNegativeButton("取消", new DialogInterface.OnClickListener(){
  300.                 @Override
  301.                 public void onClick(DialogInterface arg0, int arg1) {
  302.                     // TODO Auto-generated method stub
  304.                 }
  306.             }).show();
  308.             return false;
  309.         }
  314.     }
  316.     class BackClick implements OnClickListener{
  318.         @Override
  319.         public void onClick(View arg0) {
  320.             // TODO Auto-generated method stub
  321.             finish();
  323.         }
  325.     }
  328. }

birthdayAdapter

  1. package com.example.sendmsg;
  3. import java.util.ArrayList;
  5. import android.content.Context;
  6. import android.view.LayoutInflater;
  7. import android.view.View;
  8. import android.view.ViewGroup;
  9. import android.widget.BaseAdapter;
  10. import android.widget.ImageView;
  11. import android.widget.LinearLayout;
  12. import android.widget.TextView;
  14. public class BirthdayAdapter extends BaseAdapter{
  17.     ArrayList<Birthday> birth_list = new ArrayList<Birthday>();
  18.     private LayoutInflater inflater = null;
  19.     private Context context;
  21.     public BirthdayAdapter(Context context,ArrayList<Birthday> birth_list){
  22.         this.inflater = LayoutInflater.from(context);
  23.         this.birth_list = birth_list;
  24.         this.context = context;
  25.     }
  27.     @Override
  28.     public int getCount() {
  29.         // TODO Auto-generated method stub
  30.         return birth_list.size();
  31.     }
  33.     @Override
  34.     public Object getItem(int arg0) {
  35.         // TODO Auto-generated method stub
  36.         return null;
  37.     }
  39.     @Override
  40.     public long getItemId(int arg0) {
  41.         // TODO Auto-generated method stub
  42.         return 0;
  43.     }
  45.     @Override
  46.     public View getView(int arg0, View arg1, ViewGroup arg2) {
  47.         // TODO Auto-generated method stub
  48.         Viewholder holder = null;
  49.         if(arg1 == null){
  50.             holder = new Viewholder();
  51.             arg1 = inflater.inflate(R.layout.birth_listitem, null);
  52.             holder.birth_image =  (ImageView) arg1.findViewById(R.id.birth_image);
  53.             holder.birth_person = (TextView) arg1.findViewById(R.id.birth_name);
  54.             holder.birth_data = (TextView) arg1.findViewById(R.id.birth_data);
  55.             holder.birth_sdata = (TextView) arg1.findViewById(R.id.birth_sdata);
  56.             arg1.setTag(holder);
  57.         }else{
  58.             holder = (Viewholder) arg1.getTag();
  59.         }
  60.         holder.birth_person.setText(birth_list.get(arg0).getName());
  61.         holder.birth_data.setText(birth_list.get(arg0).getDatas());
  62.         holder.birth_sdata.setText("剩余天数还有"+birth_list.get(arg0).getDay()+"天");
  63.         return arg1;
  64.     }
  68.     class Viewholder{
  69.         public ImageView birth_image;
  70.         public TextView birth_person,birth_data,birth_sdata;
  71.     }
  72. }

birthday.xml

  1. 这里写代码片<?xml version="1.0" encoding="utf-8"?>
  2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3.     android:layout_width="match_parent"
  4.     android:layout_height="match_parent"
  5.     android:orientation="vertical" >
  7.     <LinearLayout 
  8.         android:layout_width="fill_parent"
  9.         android:layout_height="50dp"
  10.         android:orientation="horizontal"
  11.         android:background="#1f1c1c"
  12.         >
  14.         <ImageView 
  15.             android:layout_width="30dp"
  16.             android:layout_height="30dp"
  17.             android:layout_gravity="center_vertical"
  18.             android:layout_marginLeft="5dp"
  19.             android:id="@+id/main_image"
  20.             android:background="@drawable/back_selector"
  21.             />
  23.         <TextView 
  24.             android:layout_width="wrap_content"
  25.             android:layout_height="wrap_content"
  26.             android:id="@+id/title"
  27.             android:layout_gravity="center_vertical"
  28.             android:layout_marginLeft="10dp"
  29.             android:text="生日提醒"
  30.             android:textSize="20dp"
  31.             android:textColor="#ffffff"
  32.             />
  33.         <LinearLayout 
  34.             android:layout_width="fill_parent"
  35.             android:layout_height="50dp"
  36.             android:gravity="right"
  37.             android:orientation="horizontal"
  38.             android:background="#1f1c1c"
  39.             >
  41.             <ImageView 
  42.             android:layout_width="30dp"
  43.             android:layout_height="30dp"
  44.             android:layout_gravity="center_vertical|right"
  45.             android:layout_marginRight="10dp"
  46.             android:id="@+id/add_birthday"
  47.             android:background="@drawable/add"
  48.             />
  49.         </LinearLayout>
  50.     </LinearLayout>
  52.     <ListView 
  53.         android:layout_width="match_parent"
  54.         android:layout_height="match_parent"
  55.         android:paddingLeft="5dp"
  56.         android:paddingRight="5dp"
  57.         android:id="@+id/birth_list"
  58.         android:visibility="visible"/>
  60.     <LinearLayout 
  61.             android:layout_width="match_parent"
  62.             android:layout_height="match_parent"
  63.             android:orientation="vertical"
  64.             android:visibility="gone"
  65.             android:id="@+id/secondActivity">
  66.     <LinearLayout 
  67.         android:layout_width="fill_parent"
  68.         android:layout_height="wrap_content"
  69.         android:orientation="horizontal"
  70.         android:paddingTop="10dp"
  71.         android:paddingLeft="10dp"
  72.         android:paddingRight="10dp"
  73.         android:id="@+id/add_date"
  74.         >
  76.     <ImageView 
  77.         android:layout_width="30dp"
  78.         android:layout_height="30dp"
  79.         android:id="@+id/date_image"
  80.         android:background="@drawable/date"
  81.         />
  83.      <TextView 
  84.         android:layout_width="fill_parent"
  85.         android:layout_height="wrap_content"
  86.         android:gravity="center_horizontal|center_vertical"
  87.         android:id="@+id/data"
  88.         android:text="@null"
  89.         android:textSize="18dp"
  90.                 />
  92.     </LinearLayout>
  94.    <LinearLayout 
  95.        android:layout_width="fill_parent"
  96.        android:layout_height="wrap_content"
  97.        android:orientation="horizontal"
  98.        android:paddingTop="20dp"
  99.        android:paddingLeft="10dp"
  100.        android:paddingRight="10dp"
  101.        android:id="@+id/add_person"
  102.        >
  104.     <ImageView 
  105.         android:layout_width="30dp"
  106.         android:layout_height="30dp"
  107.         android:layout_gravity="center_vertical"
  108.         android:id="@+id/person_image"
  109.         android:background="@drawable/person"
  110.         />
  112.        <LinearLayout 
  113.             android:layout_width="fill_parent"
  114.             android:layout_height="wrap_content"
  115.             android:paddingLeft="30dp"
  116.             android:orientation="horizontal"
  117.            >
  118.            <EditText 
  119.                 android:layout_width="200dp"
  120.                 android:layout_height="wrap_content"
  121.                 android:id="@+id/person"
  122.                 android:hint="@string/person"
  123.                 />
  125.                 <Button 
  126.                     android:layout_width="wrap_content"
  127.                     android:layout_height="wrap_content"
  128.                     android:layout_marginLeft="20dp"
  129.                     android:id="@+id/search_btn"
  130.                     android:text="@string/search"
  131.                     />
  132.        </LinearLayout>
  134.    </LinearLayout>
  136.    <LinearLayout 
  137.        android:layout_width="fill_parent"
  138.        android:layout_height="fill_parent"
  139.        android:orientation="vertical"
  140.        android:paddingLeft="10dp"
  141.        android:paddingRight="10dp"
  142.        android:paddingBottom="10dp"
  143.        >
  145.        <ListView 
  146.             android:layout_width="match_parent"
  147.             android:layout_height="wrap_content"
  148.             android:paddingLeft="5dp"
  149.             android:paddingRight="5dp"
  150.             android:id="@+id/person_list" 
  151.             android:visibility="invisible"
  152.             ></ListView>
  154.           <LinearLayout 
  155.                android:layout_width="fill_parent"
  156.                android:layout_height="fill_parent"
  157.                android:orientation="horizontal"
  158.                android:paddingLeft="10dp"
  159.                android:paddingRight="10dp"
  160.                android:paddingBottom="10dp"
  161.                >
  163.                <Button 
  164.                     android:layout_width="fill_parent"
  165.                     android:layout_height="wrap_content"
  166.                     android:layout_weight="1"
  167.                     android:layout_gravity="bottom"
  168.                     android:id="@+id/add_main"
  169.                     android:text="@string/add_person"
  170.                     />
  172.                <Button 
  173.                     android:layout_width="fill_parent"
  174.                     android:layout_height="wrap_content"
  175.                     android:layout_weight="1"
  176.                     android:layout_gravity="bottom"
  177.                     android:id="@+id/back"
  178.                     android:text="@string/back"
  179.                     />
  180.        </LinearLayout>
  181.    </LinearLayout>
  182. </LinearLayout>
  183. </LinearLayout>

birthdayitem.xml:

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3.     android:layout_width="match_parent"
  4.     android:layout_height="match_parent"
  5.     android:orientation="horizontal" 
  6.     android:paddingLeft="10dp"  
  7.     android:paddingTop="10dp"  
  8.     android:paddingBottom="10dp"  
  9.     android:paddingRight="10dp"  
  10.     android:descendantFocusability="afterDescendants"><!-- 给每个item增加background -->
  12.     <ImageView 
  13.         android:layout_width="30dp"
  14.         android:layout_height="30dp"
  15.         android:id="@+id/birth_image"
  16.         android:background="@drawable/birthday"
  17.         android:layout_gravity="center_vertical|left"
  18.         />
  20.     <LinearLayout 
  21.         android:layout_width="fill_parent"
  22.         android:layout_height="wrap_content"
  23.         android:gravity="center_vertical"
  24.         android:orientation="vertical"
  25.         >
  26.         <LinearLayout 
  27.             android:layout_width="fill_parent"
  28.             android:layout_height="fill_parent"
  29.             android:orientation="horizontal"
  30.             android:gravity="center_vertical"
  31.             >
  33.             <TextView 
  34.                 android:layout_width="fill_parent"
  35.                 android:layout_height="fill_parent"
  36.                 android:layout_weight="1"
  37.                 android:paddingLeft="10dp"
  38.                 android:id="@+id/birth_name"
  39.             />
  41.             <TextView 
  42.                 android:layout_width="fill_parent"
  43.                 android:layout_height="fill_parent"
  44.                 android:layout_weight="1"
  45.                 android:gravity="center_vertical|right"
  46.                 android:id="@+id/birth_data"
  47.                 />
  49.         </LinearLayout>
  51.         <TextView 
  52.             android:layout_width="fill_parent"
  53.             android:layout_height="fill_parent"
  54.             android:paddingLeft="10dp"
  55.             android:id="@+id/birth_sdata"
  56.             />
  58.     </LinearLayout>
  60. </LinearLayout>

http://blog.csdn.net/chindroid/article/details/8000713
这里的一个visibility的应用。

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