基于WheelView自定义的DatePickerDialog

本人利用WheelView写的一个DatePickerDialog
（还有一个TimePickerDialog，本人忘了在写在哪个项目里了，等找到了也贴上来）

先看图，有个直观的了解




DatePickerDialog代码：

import java.util.Calendar;import com.widget.wheel.NumericWheelAdapter;import com.widget.wheel.OnWheelScrollListener;import com.widget.wheel.WheelView;import com.yirui.youbao.app.R;import android.app.Dialog;import android.content.Context;import android.os.Bundle;import android.view.View;import android.widget.Button;/** *  * @author pythoner *  */public class DatePickerDialog extends Dialog{    private Button btn_left, btn_right;    private WheelView year, month, day;    private String date;//初始化显示的日期，默认为当日    public DatePickerDialog(Context context, String date)    {//        super(context);        this(context, R.style.Theme_Dialog_NoTitle, date);        // TODO Auto-generated constructor stub    }    public DatePickerDialog(Context context, int theme, String date)    {        super(context, theme);        // TODO Auto-generated constructor stub        this.date = date;        init();    }    private void init()    {        this.setCanceledOnTouchOutside(true);        this.setCancelable(true);    }    @Override    protected void onCreate(Bundle savedInstanceState)    {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.dialog_date_picker);        initViews();        initValues();    }    private void initViews()    {        btn_left = (Button) findViewById(R.id.btn_left);        btn_left.setOnClickListener(clickListener);        btn_right = (Button) findViewById(R.id.btn_right);        btn_right.setOnClickListener(clickListener);        String icurYear, icurMonth, icurDay;        Calendar c = Calendar.getInstance();        int curYear = c.get(Calendar.YEAR);        if (date == null || date.length() < 10)        {// 格式不正确            int curMonth = c.get(Calendar.MONTH);            int curDay = c.get(Calendar.DAY_OF_MONTH);            icurYear = String.valueOf(curYear);            icurMonth = String.valueOf(curMonth + 1);            icurDay = String.valueOf(curDay);        }        else        {// 年月日            icurYear = date.substring(0, 4);            icurMonth = date.substring(5, 7);            icurDay = date.substring(8, 10);        }        year = (WheelView) findViewById(R.id.year);        year.setAdapter(new NumericWheelAdapter(curYear - 2, curYear));        // year.setLabel("年");        year.setCurrentItem(Integer.parseInt(icurYear) - Integer.parseInt(year.getAdapter().getItem(0)));        month = (WheelView) findViewById(R.id.month);        month.setAdapter(new NumericWheelAdapter(1, 12));// "%02d"        // month.setLabel("月");        month.setCyclic(true);        month.setCurrentItem(Integer.parseInt(icurMonth) - 1);        int daysOfMounth = getDaysOfMounth();        day = (WheelView) findViewById(R.id.day);        day.setAdapter(new NumericWheelAdapter(1, daysOfMounth));        // day.setLabel("日");        day.setCyclic(true);        day.setCurrentItem(Integer.parseInt(icurDay) - 1);        OnWheelScrollListener scrollListener = new OnWheelScrollListener()        {            public void onScrollingStarted(WheelView wheel)            {            }            public void onScrollingFinished(WheelView wheel)            {                int daysOfMounth = getDaysOfMounth();                day.setAdapter(new NumericWheelAdapter(1, daysOfMounth));            }        };        year.addScrollingListener(scrollListener);        month.addScrollingListener(scrollListener);        // day.addScrollingListener(scrollListener);    }    private int getDaysOfMounth()    {        int mMonth = Integer.parseInt(month.getAdapter().getItem(month.getCurrentItem()));        switch (mMonth)        {            case 1:            case 3:            case 5:            case 7:            case 8:            case 10:            case 12:                return 31;            case 4:            case 6:            case 9:            case 11:                return 30;            case 2:                int mYear = Integer.parseInt(year.getAdapter().getItem(year.getCurrentItem()));                if (mYear % 4 == 0 && mYear % 100 != 0 || mYear % 400 == 0)                {                    return 29;                }                else                {                    return 28;                }        }        return -1;    }    private void initValues()    {    }    View.OnClickListener clickListener = new View.OnClickListener()    {        @Override        public void onClick(View v)        {            // TODO Auto-generated method stub            switch (v.getId())            {                case R.id.btn_left:                    dismiss();                    break;                case R.id.btn_right:                    String mYear = year.getAdapter().getItem(year.getCurrentItem());                    String mMonth = month.getAdapter().getItem(month.getCurrentItem());                    String mDay = day.getAdapter().getItem(day.getCurrentItem());                    if (mDay == null || mDay.length() == 0)                    {                        mDay = "1";                    }                    if (Integer.parseInt(mMonth) < 10)                    {                        mMonth = "0" + mMonth;                    }                    if (Integer.parseInt(mDay) < 10)                    {                        mDay = "0" + mDay;                    }                    if (onOKClickListener != null)                    {                        onOKClickListener.onOKClick(mYear, mMonth, mDay);                    }                    dismiss();                    break;                default:                    break;            }        }    };    private OnOKClickListener onOKClickListener;    public interface OnOKClickListener    {        public void onOKClick(String year, String month, String date);    }    public void setOnOKClickListener(OnOKClickListener onOKClickListener)    {        this.onOKClickListener = onOKClickListener;    }}

DatePickerDialog的布局文件：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="250dp"    android:layout_height="wrap_content"    android:orientation="vertical"     android:gravity="center"    android:background="@drawable/bg_picker_dialog"    >    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_gravity="center_horizontal"        android:padding="8dp"         >        <LinearLayout            android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="vertical"             android:layout_weight="1"             android:gravity="center_horizontal"            >            <ImageView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center_horizontal"                android:scaleType="fitCenter"                />            <com.widget.wheel.WheelView                android:id="@+id/year"                android:layout_width="wrap_content"                android:layout_height="match_parent"                android:layout_marginBottom="10dip"                android:layout_marginTop="10dip"                android:layout_weight="1"                 />            <ImageView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center_horizontal"                android:scaleType="fitCenter"                />        </LinearLayout>        <LinearLayout            android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="vertical"             android:layout_weight="1"             android:gravity="center_horizontal"            >            <ImageView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center_horizontal"                android:scaleType="fitCenter"                />            <com.widget.wheel.WheelView                android:id="@+id/month"                android:layout_width="wrap_content"                android:layout_height="match_parent"                android:layout_marginBottom="8dip"                android:layout_marginTop="8dip"                android:layout_weight="1" />            <ImageView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center_horizontal"                android:scaleType="fitCenter"                />        </LinearLayout>                <LinearLayout            android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="vertical"             android:layout_weight="1"             android:gravity="center_horizontal"            >            <ImageView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center_horizontal"                android:scaleType="fitCenter"                />            <com.widget.wheel.WheelView                android:id="@+id/day"                android:layout_width="wrap_content"                android:layout_height="match_parent"                android:layout_marginBottom="8dip"                android:layout_marginTop="8dip"                android:layout_weight="1" />            <ImageView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center_horizontal"                android:scaleType="fitCenter"                />        </LinearLayout>            </LinearLayout>    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"         android:orientation="horizontal"        android:background="@drawable/line_top_with_blue"        >        <Button            android:id="@+id/btn_left"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_weight="1"            android:paddingBottom="8dip"            android:paddingTop="8dip"            android:text="@string/cancel"            android:textColor="@android:color/black"            android:textSize="@dimen/font_big"             android:background="@drawable/bg_btn_trans_blue_with_no_corner"            />        <View             android:layout_width="@dimen/line_width"            android:layout_height="match_parent"            android:background="@color/primary"            />                <Button            android:id="@+id/btn_right"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_weight="1"            android:paddingBottom="8dip"            android:paddingTop="8dip"            android:text="@string/confirm"            android:textColor="@android:color/black"            android:textSize="@dimen/font_big"             android:background="@drawable/bg_btn_trans_blue_with_no_corner"            />    </LinearLayout></LinearLayout>

style:

<style name="Theme_Dialog_NoTitle" parent="@android:style/Theme.Dialog">        <item name="android:windowFrame">@null</item>        <item name="android:windowNoTitle">true</item>        <item name="android:windowIsFloating">true</item>        <item name="android:windowIsTranslucent">true</item>        <item name="android:backgroundDimEnabled">true</item>        <item name="android:windowBackground">@android:color/transparent</item>    </style>

使用：

dialog = new DatePickerDialog(context, R.style.Theme_Dialog, btn_startDate.getText().toString().trim());dialog.setOnOKClickListener(new DatePickerDialog.OnOKClickListener()            {                @Override                public void onOKClick(String year, String month, String date)                {                    // TODO Auto-generated method stub                    //dosomething                    //btn_startDate.setText(year + "-" + month + "-" + date);                                   }            });            dialog.show();

WheelView类见附件，直接加入到你的工程中即可


安卓选择器类库，包括日期时间选择器等：AndroidPicker
http://www.open-open.com/lib/view/open1445774842960.html