Android自定义DataTimePicker（日期选择器）

实现的效果就是在同一个布局上显示日期选择和时间选择，时间不准确bug修复 

1、自定义类DateTimePickDialogUtil.java

public class DateTimePickDialogUtil implements OnDateChangedListener,
        OnTimeChangedListener {
    private DatePicker datePicker;
    private TimePicker timePicker;
    private AlertDialog ad;
    private String dateTime;
    private String initDateTime;
    private Activity activity;

    /**
     * 日期时间弹出选择框构造函数
     * 
     * @param activity
     *            ：调用的父activity
     * @param initDateTime
     *            初始日期时间值，作为弹出窗口的标题和日期时间初始值
     */
    public DateTimePickDialogUtil(Activity activity, String initDateTime) {
        this.activity = activity;
        this.initDateTime = initDateTime;

    }

    public void init(DatePicker datePicker, TimePicker timePicker) {
        Calendar calendar = Calendar.getInstance();
        if (!(null == initDateTime || "".equals(initDateTime))) {
            calendar = this.getCalendarByInintData(initDateTime);
        } else {
            initDateTime = calendar.get(Calendar.YEAR) + "年"
                    + calendar.get(Calendar.MONTH) + "月"
                    + calendar.get(Calendar.DAY_OF_MONTH) + "日 "
                    + calendar.get(Calendar.HOUR_OF_DAY) + ":"
                    + calendar.get(Calendar.MINUTE);
        }

        datePicker.init(calendar.get(Calendar.YEAR),
                calendar.get(Calendar.MONTH),
                calendar.get(Calendar.DAY_OF_MONTH), this);
        timePicker.setIs24HourView(true);
        timePicker.setCurrentHour(calendar.get(Calendar.HOUR_OF_DAY));
        timePicker.setCurrentMinute(calendar.get(Calendar.MINUTE));
    }

    /**
     * 弹出日期时间选择框方法
     * 
     * @param inputDate
     *            :为需要设置的日期时间文本编辑框
     * @return
     */
    public AlertDialog dateTimePicKDialog(final EditText inputDate) {
        LinearLayout dateTimeLayout = (LinearLayout) activity
                .getLayoutInflater().inflate(R.layout.common_datetime, null);
        datePicker = (DatePicker) dateTimeLayout.findViewById(R.id.datepicker);
        timePicker = (TimePicker) dateTimeLayout.findViewById(R.id.timepicker);
        init(datePicker, timePicker);
        timePicker.setIs24HourView(true);
        timePicker.setOnTimeChangedListener(this);

        ad = new AlertDialog.Builder(activity)
                .setTitle(initDateTime)
                .setView(dateTimeLayout)
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                        inputDate.setText(dateTime);
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                        inputDate.setText("");
                    }
                }).show();

        onDateChanged(null, 0, 0, 0);
        return ad;
    }

    public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
        onDateChanged(null, 0, 0, 0);
    }

    public void onDateChanged(DatePicker view, int year, int monthOfYear,
            int dayOfMonth) {
        // 获得日历实例
        Calendar calendar = Calendar.getInstance();

        calendar.set(datePicker.getYear(), datePicker.getMonth(),
                datePicker.getDayOfMonth(), timePicker.getCurrentHour(),
                timePicker.getCurrentMinute());
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 HH:mm");

        dateTime = sdf.format(calendar.getTime());
        ad.setTitle(dateTime);
    }

    /**
     * 实现将初始日期时间2012年07月02日 16:45 拆分成年 月 日 时 分 秒,并赋值给calendar
     * 
     * @param initDateTime
     *            初始日期时间值 字符串型
     * @return Calendar
     */
    private Calendar getCalendarByInintData(String initDateTime) {
        Calendar calendar = Calendar.getInstance();

        // 将初始日期时间2012年07月02日 16:45 拆分成年 月 日 时 分 秒
        String date = spliteString(initDateTime, "日", "index", "front"); // 日期
        String time = spliteString(initDateTime, "日", "index", "back"); // 时间

        String yearStr = spliteString(date, "年", "index", "front"); // 年份
        String monthAndDay = spliteString(date, "年", "index", "back"); // 月日

        String monthStr = spliteString(monthAndDay, "月", "index", "front"); // 月
        String dayStr = spliteString(monthAndDay, "月", "index", "back"); // 日

        String hourStr = spliteString(time, ":", "index", "front"); // 时
        String minuteStr = spliteString(time, ":", "index", "back"); // 分

        int currentYear = Integer.valueOf(yearStr.trim()).intValue();
        int currentMonth = Integer.valueOf(monthStr.trim()).intValue() - 1;
        int currentDay = Integer.valueOf(dayStr.trim()).intValue();
        int currentHour = Integer.valueOf(hourStr.trim()).intValue();
        int currentMinute = Integer.valueOf(minuteStr.trim()).intValue();

        calendar.set(currentYear, currentMonth, currentDay, currentHour,
                currentMinute);
        return calendar;
    }

    /**
     * 截取子串
     * 
     * @param srcStr
     *            源串
     * @param pattern
     *            匹配模式
     * @param indexOrLast
     * @param frontOrBack
     * @return
     */
    public static String spliteString(String srcStr, String pattern,
            String indexOrLast, String frontOrBack) {
        String result = "";
        int loc = -1;
        if (indexOrLast.equalsIgnoreCase("index")) {
            loc = srcStr.indexOf(pattern); // 取得字符串第一次出现的位置
        } else {
            loc = srcStr.lastIndexOf(pattern); // 最后一个匹配串的位置
        }
        if (frontOrBack.equalsIgnoreCase("front")) {
            if (loc != -1)
                result = srcStr.substring(0, loc); // 截取子串
        } else {
            if (loc != -1)
                result = srcStr.substring(loc + 1, srcStr.length()); // 截取子串
        }
        return result;
    }

}

2、自定义界面common_datetime.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <DatePicker
        android:id="@+id/datepicker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:calendarViewShown="false" />

    <TimePicker
        android:id="@+id/timepicker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

3、DateTimePickerActivity.java

public class DateTimePickerActivity extends Activity {
    /** Called when the activity is first created. */
    private EditText startDateTime;
    private EditText endDateTime;

    //private String initStartDateTime = "2013年9月3日 14:44"; // 初始化开始时间
    private String initStartDateTime = null; // 初始化开始时间
    private String initEndDateTime = null; // 初始化结束时间

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        // 两个输入框
        startDateTime = (EditText) findViewById(R.id.inputDate);
        endDateTime = (EditText) findViewById(R.id.inputDate2);

        startDateTime.setText(initStartDateTime);
        endDateTime.setText(initEndDateTime);

        startDateTime.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {

                DateTimePickDialogUtil dateTimePicKDialog = new DateTimePickDialogUtil(
                        DateTimePickerActivity.this, startDateTime.getText()==null?null:startDateTime.getText().toString());
                dateTimePicKDialog.dateTimePicKDialog(startDateTime);

            }
        });

        endDateTime.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                DateTimePickDialogUtil dateTimePicKDialog = new DateTimePickDialogUtil(
                        DateTimePickerActivity.this, endDateTime.getText()==null?null:endDateTime.getText().toString());
                dateTimePicKDialog.dateTimePicKDialog(endDateTime);
            }
        });
    }
}

项目代码:http://files.cnblogs.com/eachann/DateTimePicker.rar

转自：http://blog.csdn.net/wwj_748/article/details/38778631