Android 日历实现（包含农历）

package com.easier.ui; /** * @author zhouxin@easier */ import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.util.Log; import android.view.GestureDetector; import android.view.GestureDetector.SimpleOnGestureListener; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.view.Window; import android.view.animation.Animation; import android.view.animation.Animation.AnimationListener; import android.view.animation.AnimationUtils; import android.widget.*; import android.widget.LinearLayout.LayoutParams; import com.easier.adapter.CalendarGridView; import com.easier.adapter.CalendarGridViewAdapter; import com.easier.util.CalendarUtil; import com.easier.util.NumberHelper; import java.util.Calendar; import java.util.Date; public class CalendarView extends Activity implements OnTouchListener { /** * 日历布局ID */ private static final int CAL_LAYOUT_ID = 55; //判断手势用 private static final int SWIPE_MIN_DISTANCE = 120; private static final int SWIPE_MAX_OFF_PATH = 250; private static final int SWIPE_THRESHOLD_VELOCITY = 200; //动画 private Animation slideLeftIn; private Animation slideLeftOut; private Animation slideRightIn; private Animation slideRightOut; private ViewFlipper viewFlipper; GestureDetector mGesture = null; /** * 今天按钮 */ private Button mTodayBtn; /** * 上一个月按钮 */ private ImageView mPreMonthImg; /** * 下一个月按钮 */ private ImageView mNextMonthImg; /** * 用于显示今天的日期 */ private TextView mDayMessage; /** * 用于装截日历的View */ private RelativeLayout mCalendarMainLayout; // 基本变量 private Context mContext = CalendarView.this; /** * 上一个月View */ private GridView firstGridView; /** * 当前月View */ private GridView currentGridView; /** * 下一个月View */ private GridView lastGridView; /** * 当前显示的日历 */ private Calendar calStartDate = Calendar.getInstance(); /** * 选择的日历 */ private Calendar calSelected = Calendar.getInstance(); /** * 今日 */ private Calendar calToday = Calendar.getInstance(); /** * 当前界面展示的数据源 */ private CalendarGridViewAdapter currentGridAdapter; /** * 预装载上一个月展示的数据源 */ private CalendarGridViewAdapter firstGridAdapter; /** * 预装截下一个月展示的数据源 */ private CalendarGridViewAdapter lastGridAdapter; // /** * 当前视图月 */ private int mMonthViewCurrentMonth = 0; /** * 当前视图年 */ private int mMonthViewCurrentYear = 0; /** * 起始周 */ private int iFirstDayOfWeek = Calendar.MONDAY; @Override public boolean onTouch(View v, MotionEvent event) { return mGesture.onTouchEvent(event); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.calendar_main); initView(); updateStartDateForMonth(); generateContetView(mCalendarMainLayout); slideLeftIn = AnimationUtils.loadAnimation(this, R.anim.slide_left_in); slideLeftOut = AnimationUtils.loadAnimation(this, R.anim.slide_left_out); slideRightIn = AnimationUtils.loadAnimation(this, R.anim.slide_right_in); slideRightOut = AnimationUtils.loadAnimation(this, R.anim.slide_right_out); slideLeftIn.setAnimationListener(animationListener); slideLeftOut.setAnimationListener(animationListener); slideRightIn.setAnimationListener(animationListener); slideRightOut.setAnimationListener(animationListener); mGesture = new GestureDetector(this, new GestureListener()); } /** * 用于初始化控件 */ private void initView() { mTodayBtn = (Button) findViewById(R.id.today_btn); mDayMessage = (TextView) findViewById(R.id.day_message); mCalendarMainLayout = (RelativeLayout) findViewById(R.id.calendar_main); mPreMonthImg = (ImageView) findViewById(R.id.left_img); mNextMonthImg = (ImageView) findViewById(R.id.right_img); mTodayBtn.setOnClickListener(onTodayClickListener); mPreMonthImg.setOnClickListener(onPreMonthClickListener); mNextMonthImg.setOnClickListener(onNextMonthClickListener); } /** * 用于加载到当前的日期的事件 */ private View.OnClickListener onTodayClickListener = new View.OnClickListener() { @Override public void onClick(View view) { calStartDate = Calendar.getInstance(); updateStartDateForMonth(); generateContetView(mCalendarMainLayout); } }; /** * 用于加载上一个月日期的事件 */ private View.OnClickListener onPreMonthClickListener = new View.OnClickListener() { @Override public void onClick(View view) { viewFlipper.setInAnimation(slideRightIn); viewFlipper.setOutAnimation(slideRightOut); viewFlipper.showPrevious(); setPrevViewItem(); } }; /** * 用于加载下一个月日期的事件 */ private View.OnClickListener onNextMonthClickListener = new View.OnClickListener() { @Override public void onClick(View view) { viewFlipper.setInAnimation(slideLeftIn); viewFlipper.setOutAnimation(slideLeftOut); viewFlipper.showNext(); setNextViewItem(); } }; /** * 主要用于生成发前展示的日历View * * @param layout 将要用于去加载的布局 */ private void generateContetView(RelativeLayout layout) { // 创建一个垂直的线性布局（整体内容） viewFlipper = new ViewFlipper(this); viewFlipper.setId(CAL_LAYOUT_ID); calStartDate = getCalendarStartDate(); CreateGirdView(); RelativeLayout.LayoutParams params_cal = new RelativeLayout.LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); layout.addView(viewFlipper, params_cal); LinearLayout br = new LinearLayout(this); RelativeLayout.LayoutParams params_br = new RelativeLayout.LayoutParams( LayoutParams.FILL_PARENT, 1); params_br.addRule(RelativeLayout.BELOW, CAL_LAYOUT_ID); br.setBackgroundColor(getResources().getColor(R.color.calendar_background)); layout.addView(br, params_br); } /** * 用于创建当前将要用于展示的View */ private void CreateGirdView() { Calendar firstCalendar = Calendar.getInstance(); // 临时 Calendar currentCalendar = Calendar.getInstance(); // 临时 Calendar lastCalendar = Calendar.getInstance(); // 临时 firstCalendar.setTime(calStartDate.getTime()); currentCalendar.setTime(calStartDate.getTime()); lastCalendar.setTime(calStartDate.getTime()); firstGridView = new CalendarGridView(mContext); firstCalendar.add(Calendar.MONTH, -1); firstGridAdapter = new CalendarGridViewAdapter(this, firstCalendar); firstGridView.setAdapter(firstGridAdapter);// 设置菜单Adapter firstGridView.setId(CAL_LAYOUT_ID); currentGridView = new CalendarGridView(mContext);