自定义Dialog：双日期选择器

来源：互联网发布：vb中and和or的优先级编辑：程序博客网时间：2024/04/28 06:23

系统自带的DatePickerDialog只能一次性选择一个日期，有时候我们需要这样的功能：需要录入2个日期，比如开始日期和结束日期，如果采用DatePickerDialog需要弹出2次Dialog，能不能一次就搞定呢？那就需要下面的内容了。
自定义一个DatePickerDialog，实现OnDateChangedListener接口，里面有2个DatePicker，然后分别对这2个DatePicker设置日期就行了。

Java代码  
package qianlong.qlmobile.view;  
   
import qianlong.qlmobile.tablet.yinhe.hk.R;  
import android.app.Dialog;  
import android.content.Context;  
import android.os.Bundle;  
import android.view.View;  
import android.widget.Button;  
import android.widget.DatePicker;  
import android.widget.DatePicker.OnDateChangedListener;  
   
public class DatePickerDialog extends Dialog implements OnDateChangedListener{  
   
    private Context context;  
    private Button apply,cancel;  
    private DatePicker startDatePicker,endDatePicker;  
       
    private int start_year;  
    private int start_monthOfYear;  
    private int start_dayOfMonth;  
    private int end_year;  
    private int end_monthOfYear;  
    private int end_dayOfMonth;  
    public DatePickerDialog(Context context,  
            int start_year,  
            int start_monthOfYear,  
            int start_dayOfMonth,  
            int end_year,  
            int end_monthOfYear,  
            int end_dayOfMonth  
            ) {   
        super(context);  
        // TODO Auto-generated constructor stub  
        this.context=context;  
        this.start_year=start_year;  
        this.start_monthOfYear=start_monthOfYear;  
        this.start_dayOfMonth=start_dayOfMonth;  
        this.end_year=end_year;  
        this.end_monthOfYear=end_monthOfYear;  
        this.end_dayOfMonth=end_dayOfMonth;  
           
        init();   
    }   
    public DatePickerDialog(Context context,int theme,  
            int start_year,  
            int start_monthOfYear,  
            int start_dayOfMonth,  
            int end_year,  
            int end_monthOfYear,  
            int end_dayOfMonth  
            ) {   
        super(context);  
        // TODO Auto-generated constructor stub  
        this.context=context;  
        this.start_year=start_year;  
        this.start_monthOfYear=start_monthOfYear;  
        this.start_dayOfMonth=start_dayOfMonth;  
        this.end_year=end_year;  
        this.end_monthOfYear=end_monthOfYear;  
        this.end_dayOfMonth=end_dayOfMonth;  
        init();   
    }   
   
    private void init(){  
//      this.setCanceledOnTouchOutside(true);  
        this.setCancelable(true);  
        this.setTitle("日期选择器");  
    }   
       
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        // TODO Auto-generated method stub  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.ipo_dialog_date_picker);  
           
        initViews();   
        initValues();   
    }   
       
    private void initViews(){  
        apply=(Button)findViewById(R.id.apply);  
        apply.setOnClickListener(clickListener);  
        cancel=(Button)findViewById(R.id.cancel);  
        cancel.setOnClickListener(clickListener);  
           
        startDatePicker=(DatePicker)findViewById(R.id.startDatePicker);  
        endDatePicker=(DatePicker)findViewById(R.id.endDatePicker);  
    }   
    private void initValues(){  
        startDatePicker.init(start_year, start_monthOfYear, start_dayOfMonth, this);  
        endDatePicker.init(end_year, end_monthOfYear, end_dayOfMonth, this);  
    }   
       
    private Button.OnClickListener clickListener=new Button.OnClickListener(){  
   
        @Override  
        public void onClick(View v) {  
            // TODO Auto-generated method stub  
            switch (v.getId()) {  
            case R.id.apply:  
                if(onDateSetListener!=null){  
                    onDateSetListener.onDateSet(  
                            start_year, start_monthOfYear, start_dayOfMonth,  
                            end_year, end_monthOfYear, end_dayOfMonth  
                            );   
                }   
                dismiss();   
                break;  
            case R.id.cancel:  
                dismiss();   
                break;  
   
            default:  
                break;  
            }   
        }   
    };   
       
    private OnDateSetListener onDateSetListener;  
    public interface OnDateSetListener {  
        void onDateSet(  
                int start_year,  
                int start_monthOfYear,  
                int start_dayOfMonth,  
                int end_year,  
                int end_monthOfYear,  
                int end_dayOfMonth  
                );   
    }   
    public void setOnDateSetListener(OnDateSetListener onDateSetListener){  
        this.onDateSetListener=onDateSetListener;  
    }   
    @Override  
    public void onDateChanged(DatePicker view, int year, int monthOfYear,  
            int dayOfMonth) {  
        // TODO Auto-generated method stub  
        if(view==startDatePicker){  
            this.start_year=year;  
            this.start_monthOfYear=monthOfYear;  
            this.start_dayOfMonth=dayOfMonth;  
        }else if(view==endDatePicker){  
            this.end_year=year;  
            this.end_monthOfYear=monthOfYear;  
            this.end_dayOfMonth=dayOfMonth;  
        }   
//      updateDate(view,year,monthOfYear,dayOfMonth);  
           
    }   
       
//  public void updateDate(  
//          DatePicker view, int year, int monthOfYear,int dayOfMonth){  
//      view.updateDate(year, monthOfYear, dayOfMonth);  
//  }  
       
}   

我只是简单的实现了一下，更多的扩展请大家添上。

ipo_dialog_date_picker.xml如下：

Xml代码  
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:orientation="vertical"  
    android:layout_width="wrap_content"  
    android:layout_height="wrap_content"  
    >  
    <LinearLayout  
        android:orientation="horizontal"  
       android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        >  
        <LinearLayout  
        android:orientation="vertical"  
        android:layout_width="fill_parent"  
        android:layout_height="fill_parent"  
        android:layout_weight="1"  
        >  
            <TextView   
            android:layout_width="fill_parent"  
            android:layout_height="wrap_content"  
            android:text="开始时间："  
            android:textSize="@dimen/font_middler"  
            android:textColor="@color/white"  
            android:gravity="center"  
            />  
            <DatePicker  
            android:id="@+id/startDatePicker"  
            android:padding="5dip"  
            android:layout_gravity="center_horizontal"  
            android:layout_width="wrap_content"  
            android:layout_height="wrap_content"  
            />  
        </LinearLayout>  
        <LinearLayout  
        android:orientation="vertical"  
        android:layout_width="fill_parent"  
        android:layout_height="fill_parent"  
        android:layout_weight="1"  
        android:layout_marginLeft="5dip"  
        >  
            <TextView   
            android:layout_width="fill_parent"  
            android:layout_height="wrap_content"  
            android:text="结束时间："  
            android:textSize="@dimen/font_middler"  
            android:textColor="@color/white"  
            android:gravity="center"  
            />  
            <DatePicker  
            android:id="@+id/endDatePicker"  
            android:padding="5dip"  
            android:layout_gravity="center_horizontal"  
            android:layout_width="wrap_content"  
            android:layout_height="wrap_content"  
            />  
        </LinearLayout>  
    </LinearLayout>  
    <LinearLayout  
    android:orientation="horizontal"  
    android:layout_width="fill_parent"  
    android:layout_height="wrap_content"  
    android:gravity="center_horizontal"  
    android:layout_marginTop="20dip"  
    >  
         <Button android:id="@+id/apply"  
            android:layout_width="100dip"  
            android:layout_height="wrap_content"  
            android:text="确认"  
            android:textSize="@dimen/font_middler"  
            />  
         <Button android:id="@+id/cancel"  
            android:layout_width="100dip"  
            android:layout_height="wrap_content"  
            android:text="取消"  
            android:textSize="@dimen/font_middler"  
            android:layout_marginLeft="20dip"  
            />  
    </LinearLayout>  
</LinearLayout>  

用法：

Java代码  
private Calendar calendar_start = Calendar.getInstance();  
private Calendar calendar_end = Calendar.getInstance();  
   
//在需要的地方填入如下代码(通常是在Button的click事件中.)  
qianlong.qlmobile.view.DatePickerDialog d=new qianlong.qlmobile.view.DatePickerDialog(  
                            HK_TradeIPOActivity.this.getParent(),  
                            calendar_start.get(Calendar.YEAR),  
                            calendar_start.get(Calendar.MONTH),  
                            calendar_start.get(Calendar.DAY_OF_MONTH),  
                            calendar_end.get(Calendar.YEAR),  
                            calendar_end.get(Calendar.MONTH),  
                            calendar_end.get(Calendar.DAY_OF_MONTH)  
                            );   
                d.setOnDateSetListener(onDateSetListener);  
                d.show();   
   
   
   
//自己实现需要的功能  
private qianlong.qlmobile.view.DatePickerDialog.OnDateSetListener onDateSetListener=new qianlong.qlmobile.view.DatePickerDialog.OnDateSetListener(){  
   
        @Override  
        public void onDateSet(int start_year,  
                int start_monthOfYear,  
                int start_dayOfMonth,  
                int end_year,  
                int end_monthOfYear,  
                int end_dayOfMonth) {  
            // TODO Auto-generated method stub  
           
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy/MM/dd");  
               
            calendar_start.set(Calendar.YEAR, start_year);  
            calendar_start.set(Calendar.MONTH, start_monthOfYear);  
            calendar_start.set(Calendar.DAY_OF_MONTH, start_dayOfMonth);  
               
               
            calendar_end.set(Calendar.YEAR, end_year);  
            calendar_end.set(Calendar.MONTH, end_monthOfYear);  
            calendar_end.set(Calendar.DAY_OF_MONTH, end_dayOfMonth);  
   
String startDate=simpleDateFormat.format(calendar_start.getTime());  
String endDate=simpleDateFormat.format(calendar_end.getTime());  
            //doSomething(startDate,endDate)      
               
               
        }   
           
    };   