基于上一篇写的UserBirthdayDialog

从下部弹上来的UserBirthdayDialog

import java.util.Calendar;

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

import com.widget.wheel.NumericWheelAdapter;
import com.widget.wheel.OnWheelScrollListener;
import com.widget.wheel.WheelView;
import com.yirui.youbao.app.R;

/**
 * 
 * @author pythoner
 * 
 */
public class UserBirthdayDialog extends Dialog
{

    private Context context;

    private WheelView year, month, day;

    private String date;

    public UserBirthdayDialog(Context context, String date)
    {
        this(context, R.style.Theme_Dialog_From_Bottom, date);
        // TODO Auto-generated constructor stub
    }

    public UserBirthdayDialog(Context context, int theme, String date)
    {
        super(context, theme);
        // TODO Auto-generated constructor stub
        this.context = context;
        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_user_birthday);

        initViews();
        initValues();
    }

    private void initViews()
    {
        findViewById(R.id.btn_left).setOnClickListener(clickListener);
        findViewById(R.id.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 - 100, 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 void initValues()
    {
        // 不能写在init()中
        Window window = getWindow();
        WindowManager.LayoutParams lp = window.getAttributes();
        DisplayMetrics dm = context.getResources().getDisplayMetrics();
        lp.width = dm.widthPixels;
        lp.gravity = Gravity.BOTTOM;
        window.setAttributes(lp);

    }

    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;
    }

    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(v, mYear, mMonth, mDay);
                    }
                    dismiss();
                    break;

                default:
                    break;
            }
        }

    };

    private OnOKClickListener onOKClickListener;

    public interface OnOKClickListener
    {
        public void onOKClick(View v, String year, String month, String day);
    }

    public void setOnOKClickListener(OnOKClickListener onOKClickListener)
    {
        this.onOKClickListener = onOKClickListener;
    }
}

<style name="Theme_Dialog_From_Bottom" 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:windowAnimationStyle">@style/dialog_animation</item>
        <item name="android:backgroundDimEnabled">true</item>
        <item name="android:windowBackground">@android:color/transparent</item>
    </style>

    <style name="dialog_animation" parent="@android:style/Animation.Dialog">
        <item name="android:windowEnterAnimation">@anim/push_bottom_in</item>
        <item name="android:windowExitAnimation">@anim/push_bottom_out</item>
    </style>

至于push_bottom_in.xml和push_bottom_out.xml见 http://gundumw100.iteye.com/blog/2163571