生日剩余天数计算

女爷i 2022-07-16 21:12 270阅读 0赞

Birthday.class

package com.example.sendmsg;
    
    import java.text.SimpleDateFormat;
    import java.util.Calendar;
    import java.util.Date;
    
    import android.content.Context;
    import android.graphics.Bitmap;
    import android.util.Log;
    
    public class Birthday {
    
        private Context context;
        private Bitmap personIcon;
        private String name;
        private String datas;
        private String phone_number;
        private String day;
        private long days = 0;
    
    
        public Bitmap getPersonIcon() {
            return personIcon;
        }
    
    
        public void setPersonIcon(Bitmap personIcon) {
            this.personIcon = personIcon;
        }
    
    
        public String getName() {
            return name;
        }
    
    
        public void setName(String name) {
            this.name = name;
        }
    
    
        public String getDatas() {
            return datas;
        }
    
    
        public void setDatas(String datas) {
            this.datas = datas;
        }
    
    
        public String getPhone_number() {
            return phone_number;
        }
    
    
        public void setPhone_number(String phone_number) {
            this.phone_number = phone_number;
        }
    
    
        public String getDay() {
            return day;
        }
    
    
        public void setDay(String day) {
            this.day = day;
        }
    
        //剩余天数计算：
        public String getBirthday(String birthday) {
                //String birthday = "2013-03-18";
    
                SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
                Calendar cal = Calendar.getInstance();
                int yearNow = cal.get(Calendar.YEAR);// 获得当前年份
                try {
                    Log.i("Birthday_time", formatter.parse(birthday) + "");
                    cal.setTime(formatter.parse(birthday));
                } catch (Exception e) {
                    e.printStackTrace();
                }
                int birthyear = cal.get(Calendar.YEAR);
                Log.i("Birthday_year", birthyear + "");
                while (birthyear < yearNow) {
                    cal.set(Calendar.YEAR, cal.get(Calendar.YEAR) + 1);
                    birthyear = cal.get(Calendar.YEAR);
                    Log.i("Birthday_year++", birthyear + "");
                }
                Date ed = new Date();
                Log.i("Date_ed", ed + "");
                Date sd = cal.getTime();
                Log.i("Date_sd", ed + "");
                days = 0;
                if ((ed.getTime() - sd.getTime()) / (3600 * 24 * 1000) < 0) {
       //>
                    days = -((ed.getTime() - sd.getTime()) / (3600 * 24 * 1000)) + 1;
                    System.out.println("距离你生日还有" + days + "天");
                } else {
                    cal.set(Calendar.YEAR, cal.get(Calendar.YEAR) + 1);
                    sd = cal.getTime();
                    days = -((ed.getTime() - sd.getTime()) / (3600 * 24 * 1000)) + 1;
                    System.out.println("距离你生日还有" + days + "天");
                }
                if(days == 366L) days = 1;
                if(days == 365L) days = 0;
                String days_ = Long.toString(days);
                return days_;
        }
    }

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

package com.example.sendmsg;
    
    import java.util.ArrayList;
    import java.util.Calendar;
    import java.util.Date;
    import java.util.Locale;
    
    
    import android.annotation.SuppressLint;
    import android.app.ActionBar;
    import android.app.Activity;
    import android.app.AlertDialog;
    import android.app.DatePickerDialog;
    import android.content.DialogInterface;
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.AdapterView;
    import android.widget.AdapterView.OnItemClickListener;
    import android.widget.AdapterView.OnItemLongClickListener;
    import android.widget.Button;
    import android.widget.DatePicker;
    import android.widget.EditText;
    import android.widget.ImageView;
    import android.widget.LinearLayout;
    import android.widget.ListView;
    import android.widget.TextView;
    import android.widget.Toast;
    
    @SuppressLint("NewApi") public class BirthListActivity extends Activity{
        
    
        //1界面
        private ListView festival_list1;
        private ImageView image;
        private ImageView back_image;
        private TextView text_name;
        private BirthdayAdapter adapter;
        private ArrayList<Birthday> birth_lists = new ArrayList<Birthday>();
        //2界面
        private ListView person_list;
        private LinearLayout secondActivity;
        private TextView data;
        private EditText person;
        private Button search_btn;
        private Button add_main;
        private Button back;
        private LinearLayout add_person;
        private LinearLayout add_date;
        private int year,month,day;
        private String datas;
        private String days;
        private String number;
        private String name;
        private ArrayList<Birthday> personlist;
        @SuppressLint("NewApi") @Override
        protected void onCreate(Bundle savedInstanceState) {
            // TODO Auto-generated method stub
            super.onCreate(savedInstanceState);
            setContentView(R.layout.birth_list);
            festival_list1 = (ListView) findViewById(R.id.birth_list);
            image = (ImageView) findViewById(R.id.add_birthday);
            image.setBackgroundResource(R.drawable.add);
            back_image = (ImageView) findViewById(R.id.main_image);
            secondActivity = (LinearLayout) findViewById(R.id.secondActivity);
    
    
            back_image.setOnClickListener(new BackClick());
            InsertSqlite insql = new InsertSqlite(BirthListActivity.this);
            birth_lists = insql.selectAllBirth();
    
            adapter = new BirthdayAdapter(this, birth_lists);
            festival_list1.setAdapter(adapter);
    
            ActionBar actionBar = getActionBar();  
            actionBar.hide();
            festival_list1.setOnItemLongClickListener(new BirthListClick());
    
            image.setOnClickListener(new OnClickListener() {
    
                @Override
                public void onClick(View arg0) {
                    // TODO Auto-generated method stub
                    festival_list1.setVisibility(arg0.GONE);
                    secondActivity.setVisibility(arg0.VISIBLE);
    
    
                    init();
                    //初始化Calendar日历对象
                    Calendar mycalendar=Calendar.getInstance(Locale.CHINA);
                    Date mydate=new Date(); //获取当前日期Date对象
                    mycalendar.setTime(mydate);为Calendar对象设置时间为当前日期
    
                    year=mycalendar.get(Calendar.YEAR); //获取Calendar对象中的年
                    month=mycalendar.get(Calendar.MONTH);//获取Calendar对象中的月
                    day=mycalendar.get(Calendar.DAY_OF_MONTH);//获取这个月的第几天
    
                    data.setText(year+"-"+(month+1)+"-"+day); //显示当前的年月日
                    add_date.setOnClickListener(new Add_dataClick());
                    add_main.setOnClickListener(new AddPersonClick());
                    back.setOnClickListener(new BackOnclick());
    
                    //通讯录
    
                    search_btn.setOnClickListener(new PersonClick());
                    person_list.setOnItemClickListener(new PersonList());
                }
            });
    
    
    
        }
    
        public void init(){
            data = (TextView) findViewById(R.id.data);
            person = (EditText) findViewById(R.id.person);
            search_btn = (Button) findViewById(R.id.search_btn);
            add_person = (LinearLayout) findViewById(R.id.add_person);
            add_date = (LinearLayout) findViewById(R.id.add_date);
            add_main = (Button) findViewById(R.id.add_main);
            back = (Button) findViewById(R.id.back);
            person_list = (ListView) findViewById(R.id.person_list);
        }
        //search
        class PersonClick implements OnClickListener{
    
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                person_list.setVisibility(arg0.VISIBLE);
                InsertSqlite insql = new InsertSqlite(BirthListActivity.this);
                String name = person.getText().toString();
                if(name.isEmpty()){
                    personlist = insql.getPhone();
                    PersonAdapter personadapter = new PersonAdapter(BirthListActivity.this, personlist);
                    person_list.setAdapter(personadapter);
                }else{
                    personlist = insql.getPhone_num(name);
                    if(personlist.size()>0){
                        PersonAdapter personadapter = new PersonAdapter(BirthListActivity.this, personlist);
                        person_list.setAdapter(personadapter);
                    }else{
                        Toast.makeText(BirthListActivity.this, "查无此人", Toast.LENGTH_LONG).show();
                    }
                }
    
            }
    
        }
    
        //ListItem
        class PersonList implements OnItemClickListener{
    
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                // TODO Auto-generated method stub
                TextView text1 = (TextView) arg1.findViewById(R.id.phone_name);
                TextView text2 = (TextView) arg1.findViewById(R.id.phone_number);
                name = text1.getText().toString();
                number = text2.getText().toString();
                person.setText(name); 
    
            }
    
        }
    
    
        class Add_dataClick implements OnClickListener{
    
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
    
                /**
                 * 构造函数原型：
                 * public DatePickerDialog (Context context, DatePickerDialog.OnDateSetListener callBack, 
                 * int year, int monthOfYear, int dayOfMonth) 
                 * content组件运行Activity，
                 * DatePickerDialog.OnDateSetListener：选择日期事件
                 * 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
                 * 
                 */
                //创建DatePickerDialog对象
                DatePickerDialog dpd=new DatePickerDialog(BirthListActivity.this,Datelistener,year,month,day);
                dpd.show();//显示DatePickerDialog组件
    
    
    
    
            }
    
            private DatePickerDialog.OnDateSetListener Datelistener=new DatePickerDialog.OnDateSetListener()
            {
                /**params：view：该事件关联的组件
                 * params：myyear：当前选择的年
                 * params：monthOfYear：当前选择的月
                 * params：dayOfMonth：当前选择的日
                 */
                @Override
                public void onDateSet(DatePicker view, int myyear, int monthOfYear,int dayOfMonth) {
    
    
                    //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
                    year=myyear;
                    month=monthOfYear;
                    day=dayOfMonth;
                    //更新日期
                    updateDate();
    
                }
                //当DatePickerDialog关闭时，更新日期显示
                private void updateDate()
                {
                    //在TextView上显示日期
    
                    Birthday bir = new Birthday();
                    datas = year+"-"+(month+1)+"-"+day;
    
                    days = bir.getBirthday(datas);
    
                    data.setText(datas);
                   // Toast.makeText(DataRemind.this, "data:"+datas, Toast.LENGTH_LONG).show();
                }
            };
    
        }
    
        class AddPersonClick implements OnClickListener{
    
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                InsertSqlite insql = new InsertSqlite(BirthListActivity.this);
                String name = person.getText().toString();
    
                Birthday bir = new Birthday();
                datas = year+"-"+(month+1)+"-"+day;
                days = bir.getBirthday(datas);
                data.setText(datas);
                datas = data.getText().toString();
                if(name.isEmpty()){
                    Toast.makeText(BirthListActivity.this, "请检查名字或日期", Toast.LENGTH_LONG).show();
                }else{
                    boolean bool = insql.insertBirthday(name, datas, days, number);
                    if(bool){
                        Toast.makeText(BirthListActivity.this, "添加成功!", Toast.LENGTH_LONG).show();
                        secondActivity.setVisibility(arg0.GONE);
                        festival_list1.setVisibility(arg0.VISIBLE);
                    }else{
                        Toast.makeText(BirthListActivity.this, "添加失败", Toast.LENGTH_LONG).show();
                    }
                }
            }
    
        }
    
        class BackOnclick implements OnClickListener{
    
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                secondActivity.setVisibility(arg0.GONE);
                festival_list1.setVisibility(arg0.VISIBLE);
            }
    
        }
    
    
        class BirthListClick implements OnItemLongClickListener{
    
            @Override
            public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
                    int arg2, long arg3) {
                // TODO Auto-generated method stub
                text_name = (TextView) findViewById(R.id.birth_name);
    
                //设置对话框标题
                new AlertDialog.Builder(BirthListActivity.this).setTitle("系统提示")
                .setMessage("是否删除此人生日").setPositiveButton("确定", new DialogInterface.OnClickListener() {
    
                    @Override
                    public void onClick(DialogInterface arg0, int arg1) {
                        // TODO Auto-generated method stub
                        InsertSqlite insql = new InsertSqlite(BirthListActivity.this);
                        String name = text_name.getText().toString();
    
                        Boolean bool = insql.deleteBirth(name);
    
                        if(bool){
                            Toast.makeText(BirthListActivity.this, "删除成功", Toast.LENGTH_LONG).show();
                        }else{
                            Toast.makeText(BirthListActivity.this, "删除失败", Toast.LENGTH_LONG).show();
                        }
                    }
    
                }).setNegativeButton("取消", new DialogInterface.OnClickListener(){
    
                    @Override
                    public void onClick(DialogInterface arg0, int arg1) {
                        // TODO Auto-generated method stub
    
                    }
    
                }).show();
    
                return false;
            }
    
    
    
    
        }
    
        class BackClick implements OnClickListener{
    
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                finish();
    
            }
    
        }
    
    
    }

birthdayAdapter

package com.example.sendmsg;
    
    import java.util.ArrayList;
    
    import android.content.Context;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.BaseAdapter;
    import android.widget.ImageView;
    import android.widget.LinearLayout;
    import android.widget.TextView;
    
    public class BirthdayAdapter extends BaseAdapter{
        
    
        ArrayList<Birthday> birth_list = new ArrayList<Birthday>();
        private LayoutInflater inflater = null;
        private Context context;
    
        public BirthdayAdapter(Context context,ArrayList<Birthday> birth_list){
            this.inflater = LayoutInflater.from(context);
            this.birth_list = birth_list;
            this.context = context;
        }
    
        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return birth_list.size();
        }
    
        @Override
        public Object getItem(int arg0) {
            // TODO Auto-generated method stub
            return null;
        }
    
        @Override
        public long getItemId(int arg0) {
            // TODO Auto-generated method stub
            return 0;
        }
    
        @Override
        public View getView(int arg0, View arg1, ViewGroup arg2) {
            // TODO Auto-generated method stub
            Viewholder holder = null;
            if(arg1 == null){
                holder = new Viewholder();
                arg1 = inflater.inflate(R.layout.birth_listitem, null);
                holder.birth_image =  (ImageView) arg1.findViewById(R.id.birth_image);
                holder.birth_person = (TextView) arg1.findViewById(R.id.birth_name);
                holder.birth_data = (TextView) arg1.findViewById(R.id.birth_data);
                holder.birth_sdata = (TextView) arg1.findViewById(R.id.birth_sdata);
                arg1.setTag(holder);
            }else{
                holder = (Viewholder) arg1.getTag();
            }
            holder.birth_person.setText(birth_list.get(arg0).getName());
            holder.birth_data.setText(birth_list.get(arg0).getDatas());
            holder.birth_sdata.setText("剩余天数还有"+birth_list.get(arg0).getDay()+"天");
            return arg1;
        }
    
    
    
        class Viewholder{
            public ImageView birth_image;
            public TextView birth_person,birth_data,birth_sdata;
        }
    }

birthday.xml

这里写代码片<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >
    
        <LinearLayout 
            android:layout_width="fill_parent"
            android:layout_height="50dp"
            android:orientation="horizontal"
            android:background="#1f1c1c"
            >
    
            <ImageView 
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_gravity="center_vertical"
                android:layout_marginLeft="5dp"
                android:id="@+id/main_image"
                android:background="@drawable/back_selector"
                />
    
            <TextView 
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/title"
                android:layout_gravity="center_vertical"
                android:layout_marginLeft="10dp"
                android:text="生日提醒"
                android:textSize="20dp"
                android:textColor="#ffffff"
                />
            <LinearLayout 
                android:layout_width="fill_parent"
                android:layout_height="50dp"
                android:gravity="right"
                android:orientation="horizontal"
                android:background="#1f1c1c"
                >
    
                <ImageView 
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_gravity="center_vertical|right"
                android:layout_marginRight="10dp"
                android:id="@+id/add_birthday"
                android:background="@drawable/add"
                />
            </LinearLayout>
        </LinearLayout>
    
        <ListView 
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:paddingLeft="5dp"
            android:paddingRight="5dp"
            android:id="@+id/birth_list"
            android:visibility="visible"/>
    
        <LinearLayout 
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical"
                android:visibility="gone"
                android:id="@+id/secondActivity">
        <LinearLayout 
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:paddingTop="10dp"
            android:paddingLeft="10dp"
            android:paddingRight="10dp"
            android:id="@+id/add_date"
            >
    
        <ImageView 
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:id="@+id/date_image"
            android:background="@drawable/date"
            />
    
         <TextView 
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal|center_vertical"
            android:id="@+id/data"
            android:text="@null"
            android:textSize="18dp"
                    />
    
        </LinearLayout>
    
       <LinearLayout 
           android:layout_width="fill_parent"
           android:layout_height="wrap_content"
           android:orientation="horizontal"
           android:paddingTop="20dp"
           android:paddingLeft="10dp"
           android:paddingRight="10dp"
           android:id="@+id/add_person"
           >
    
        <ImageView 
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:layout_gravity="center_vertical"
            android:id="@+id/person_image"
            android:background="@drawable/person"
            />
    
           <LinearLayout 
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:paddingLeft="30dp"
                android:orientation="horizontal"
               >
               <EditText 
                    android:layout_width="200dp"
                    android:layout_height="wrap_content"
                    android:id="@+id/person"
                    android:hint="@string/person"
                    />
    
                    <Button 
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginLeft="20dp"
                        android:id="@+id/search_btn"
                        android:text="@string/search"
                        />
           </LinearLayout>
    
       </LinearLayout>
    
       <LinearLayout 
           android:layout_width="fill_parent"
           android:layout_height="fill_parent"
           android:orientation="vertical"
           android:paddingLeft="10dp"
           android:paddingRight="10dp"
           android:paddingBottom="10dp"
           >
    
           <ListView 
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:paddingLeft="5dp"
                android:paddingRight="5dp"
                android:id="@+id/person_list" 
                android:visibility="invisible"
                ></ListView>
    
              <LinearLayout 
                   android:layout_width="fill_parent"
                   android:layout_height="fill_parent"
                   android:orientation="horizontal"
                   android:paddingLeft="10dp"
                   android:paddingRight="10dp"
                   android:paddingBottom="10dp"
                   >
    
                   <Button 
                        android:layout_width="fill_parent"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:layout_gravity="bottom"
                        android:id="@+id/add_main"
                        android:text="@string/add_person"
                        />
    
                   <Button 
                        android:layout_width="fill_parent"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:layout_gravity="bottom"
                        android:id="@+id/back"
                        android:text="@string/back"
                        />
           </LinearLayout>
       </LinearLayout>
    </LinearLayout>
    </LinearLayout>

birthdayitem.xml:

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal" 
        android:paddingLeft="10dp"  
        android:paddingTop="10dp"  
        android:paddingBottom="10dp"  
        android:paddingRight="10dp"  
        android:descendantFocusability="afterDescendants">
    
        <ImageView 
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:id="@+id/birth_image"
            android:background="@drawable/birthday"
            android:layout_gravity="center_vertical|left"
            />
    
        <LinearLayout 
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="center_vertical"
            android:orientation="vertical"
            >
            <LinearLayout 
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:orientation="horizontal"
                android:gravity="center_vertical"
                >
    
                <TextView 
                    android:layout_width="fill_parent"
                    android:layout_height="fill_parent"
                    android:layout_weight="1"
                    android:paddingLeft="10dp"
                    android:id="@+id/birth_name"
                />
    
                <TextView 
                    android:layout_width="fill_parent"
                    android:layout_height="fill_parent"
                    android:layout_weight="1"
                    android:gravity="center_vertical|right"
                    android:id="@+id/birth_data"
                    />
    
            </LinearLayout>
    
            <TextView 
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:paddingLeft="10dp"
                android:id="@+id/birth_sdata"
                />
    
        </LinearLayout>
    
    </LinearLayout>

[http://blog.csdn.net/chindroid/article/details/8000713][http_blog.csdn.net_chindroid_article_details_8000713]  
这里的一个visibility的应用。

[http_blog.csdn.net_chindroid_article_details_8000713]: http://blog.csdn.net/chindroid/article/details/8000713