android 日历源码

package com.decarta.calendar; import java.util.ArrayList; import java.util.Calendar; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.PreferenceManager; import android.view.Gravity; import android.view.View; import android.view.Window; import android.widget.Button; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.LinearLayout.LayoutParams; /** * Android日历控件示例 * @Description:Android日历控件示例 * @FileName: DateWidget.java * @Package com.decarta.calendar * @Author Hanyonglu * @Date 2012-3-26 上午11:46:14 * @Version V1.0 */ public class DateWidget extends Activity { private ArrayList<DateWidgetDayCell> days = new ArrayList<DateWidgetDayCell>(); private Calendar calStartDate = Calendar.getInstance(); private Calendar calToday = Calendar.getInstance(); private Calendar calCalendar = Calendar.getInstance(); private Calendar calSelected = Calendar.getInstance(); LinearLayout layContent = null; Button btnToday = null; private int iFirstDayOfWeek = Calendar.SUNDAY; private int iMonthViewCurrentMonth = 0; private int iMonthViewCurrentYear = 0; public static final int SELECT_DATE_REQUEST = 111; private static final int iDayCellSize = 38; private static final int iDayHeaderHeight = 24; private static final int iTotalWidth = (iDayCellSize * 7); private TextView tv,monthTextView,yearTextView; private int mYear; private int mMonth; private int mDay; private int type; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Bundle bundle = this.getIntent().getExtras(); type = bundle.getInt("type"); requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); //声明使用自定义标题 iFirstDayOfWeek = Calendar.SUNDAY; mYear = calSelected.get(Calendar.YEAR); mMonth = calSelected.get(Calendar.MONTH); mDay = calSelected.get(Calendar.DAY_OF_MONTH); setContentView(generateContentView()); getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title);//自定义布局赋值 calStartDate = getCalendarStartDate(); DateWidgetDayCell daySelected = updateCalendar(); updateControlsState(); if (daySelected != null) daySelected.requestFocus(); } @Override public void onStart() { super.onStart(); } private LinearLayout createLayout(int iOrientation) { LinearLayout lay = new LinearLayout(this); lay.setLayoutParams(new LayoutParams( android.view.ViewGroup.LayoutParams.FILL_PARENT, android.view.ViewGroup.LayoutParams.WRAP_CONTENT)); lay.setOrientation(iOrientation); return lay; } private Button createButton(String sText, int iWidth, int iHeight) { Button btn = new Button(this); btn.setText(sText); btn.setLayoutParams(new LayoutParams(iWidth, iHeight)); return btn; } private void generateTopButtons(LinearLayout layTopControls) { final int iSmallButtonWidth = 40; btnToday = createButton("", iTotalWidth - iSmallButtonWidth*4, android.view.ViewGroup.LayoutParams.WRAP_CONTENT); monthTextView = new TextView(this); monthTextView.setPadding(8, 8, 8, 8); monthTextView.setText(mYear+""); monthTextView.setWidth(55); yearTextView = new TextView(this); yearTextView.setPadding(20, 8, 8, 8); yearTextView.setText(format(mMonth+1)); yearTextView.setWidth(55); Button btnPrevMonth = new Button(this); btnPrevMonth.setLayoutParams(new LayoutParams(iSmallButtonWidth, android.view.ViewGroup.LayoutParams.WRAP_CONTENT)); btnPrevMonth.setBackgroundResource(R.drawable.prev_month); Button btnPrevYear = new Button(this); btnPrevYear.setLayoutParams(new LayoutParams(iSmallButtonWidth, android.view.ViewGroup.LayoutParams.WRAP_CONTENT)); btnPrevYear.setBackgroundResource(R.drawable.prev_year); Button btnNextMonth = new Button(this); btnNextMonth.setLayoutParams(new LayoutParams(iSmallButtonWidth, android.view.ViewGroup.LayoutParams.WRAP_CONTENT)); btnNextMonth.setBackgroundResource(R.drawable.next_month); Button btnNextYear = new Button(this); btnNextYear.setLayoutParams(new LayoutParams(iSmallButtonWidth, android.view.ViewGroup.LayoutParams.WRAP_CONTENT)); btnNextYear.setBackgroundResource(R.drawable.next_year); // set events btnPrevMonth.setOnClickListener(new Button.OnClickListener() { public void onClick(View arg0) { setPrevMonthViewItem(); } }); btnNextMonth.setOnClickListener(new Button.OnClickListener() { public void onClick(View arg0) { setNextMonthViewItem(); } }); btnPrevYear.setOnClickListener(new Button.OnClickListener() { public void onClick(View arg0) { setPrevYearViewItem(); } }); btnNextYear.setOnClickListener(new Button.OnClickListener() { public void onClick(View arg0) { setNextYearViewItem(); } }); layTopControls.setGravity(Gravity.CENTER_HORIZONTAL); layTopControls.addView(btnPrevYear); layTopControls.addView(btnPrevMonth); layTopControls.addView(monthTextView); layTopControls.addView(yearTextView); layTopControls.addView(btnNextMonth); layTopControls.addView(btnNextYear); } private View generateContentView() { LinearLayout layMain = createLayout(LinearLayout.VERTICAL); layMain.setPadding(8, 8, 8, 8); LinearLayout layTopControls = createLayout(LinearLayout.HORIZONTAL); layContent = createLayout(LinearLayout.VERTICAL); layContent.setPadding(20, 0, 20, 0); generateTopButtons(layTopControls); generateCalendar(layContent); layMain.addView(layTopControls); layMain.addView(layContent); tv = new TextView(this); tv.setPadding(20, 0, 20, 0); layMain.addView(tv); return layMain; } private View generateCalendarRow() { LinearLayout layRow = createLayout(LinearLayout.HORIZONTAL); for (int iDay = 0; iDay < 7; iDay++) { DateWidgetDayCell dayCell = new DateWidgetDayCell(this, iDayCellSize, iDayCellSize); dayCell.setItemClick(mOnDayCellClick); days.add(dayCell); layRow.addView(dayCell); } return layRow; } private View generateCalendarHeader() { LinearLayout layRow = createLayout(LinearLayout.HORIZONTAL); for (int iDay = 0; iDay < 7; iDay++) { DateWidgetDayHeader day = new DateWidgetDayHeader(this, iDayCellSize, iDayHeaderHeight); final int iWeekDay = DayStyle.getWeekDay(iDay, iFirstDayOfWeek); day.setData(iWeekDay); layRow.addView(day); } return layRow; } private void generateCalendar(LinearLayout layContent) { layContent.addView(generateCalendarHeader()); days.clear(); for (int iRow = 0; iRow < 6; iRow++) { layContent.addView(generateCalendarRow()); } } private Calendar getCalendarStartDate() { calToday.setTimeInMillis(System.currentTimeMillis()); calToday.setFirstDayOfWeek(iFirstDayOfWeek); if (calSelected.getTimeInMillis() == 0) { calStartDate.setTimeInMillis(System.currentTimeMillis()); calStartDate.setFirstDayOfWeek(iFirstDayOfWeek); } else { calStartDate.setTimeInMillis(calSelected.getTimeInMillis()); calStartDate.setFirstDayOfWeek(iFirstDayOfWeek); } updateStartDateForMonth(); return calStartDate; } private DateWidgetDayCell updateCalendar() { DateWidgetDayCell daySelected = null; boolean bSelected = false; final boolean bIsSelection = (calSelected.getTimeInMillis() != 0); final int iSelectedYear = calSelected.get(Calendar.YEAR); final int iSelectedMonth = calSelected.get(Calendar.MONTH); final int iSelectedDay = calSelected.get(Calendar.DAY_OF_MONTH); calCalendar.setTimeInMillis(calStartDate.getTimeInMillis()); for (int i = 0; i < days.size(); i++) { final int iYear = calCalendar.get(Calendar.YEAR); final int iMonth = calCalend