Android开发自定义View的简单尝试 自定义日历视图

自定义日历视图

2016年03月22日 23:27:48

1. 自定义属性。分别是日期的背景颜色，日期表头的背景颜色，正常的日期字体颜色，当前日期的颜色，当前日期的背景颜色，选择的日期的背景颜色，日期的字体大小，日期表头的字体大小。
   [html]  view plain  copy

   1. <?xml version="1.0" encoding="utf-8"?>  
   2. <resources>  
   3.   
   4.   
   5.     <declare-styleable name="SunshineView">  
   6.         <attr name="android:background"/>  
   7.         <attr name="titleBackgroundColor" format="color"/>  
   8.         <attr name="normalDateColor" format="color"/>  
   9.         <attr name="currentDateColor" format="color"/>  
   10.         <attr name="currentDateBackgroundColor" format="color"/>  
   11.         <attr name="selectedDateBackgroundColor" format="color"/>  
   12.         <attr name="dateSize" format="dimension"/>  
   13.         <attr name="titleSize" format="dimension"/>  
   14.   
   15.     </declare-styleable>  
   16.   
   17.   
   18. </resources>  
   
   
2. 获取自定义的属性
   [java]  view plain  copy

   1. //默认的字体大小  
   2.    defaultSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, 19, getResources().getDisplayMetrics());  
   3.    /** 
   4.     * 获取自定义属性 
   5.     */  
   6.    TypedArray typedArray = context.obtainStyledAttributes(attrs,R.styleable.SunshineView,defStyleAttr,0);  
   7.   
   8.    int attrCount = typedArray.getIndexCount();  
   9.    for(int i=0; i<attrCount; i++) {  
   10.        int attr = typedArray.getIndex(i);  
   11.        switch (attr){  
   12.   
   13.            case R.styleable.SunshineView_android_background:  
   14.                background = typedArray.getColor(attr,Color.parseColor("#ffec00"));  
   15.                break;  
   16.   
   17.            case R.styleable.SunshineView_titleBackgroundColor:  
   18.                titleBackgroundColor = typedArray.getColor(attr,0xff0000);  
   19.                break;  
   20.   
   21.            case R.styleable.SunshineView_normalDateColor:  
   22.                normalColor = typedArray.getColor(attr, 0x232323);  
   23.                break;  
   24.   
   25.            case R.styleable.SunshineView_currentDateColor:  
   26.                currentColor = typedArray.getColor(attr, 0xffffff);  
   27.                break;  
   28.   
   29.            case R.styleable.SunshineView_currentDateBackgroundColor:  
   30.                currentBgColor = typedArray.getColor(attr, 0xFFDA4336);  
   31.                break;  
   32.   
   33.            case R.styleable.SunshineView_selectedDateBackgroundColor:  
   34.                selectedBgColor = typedArray.getColor(attr, 0x7fd2d2d2);  
   35.                break;  
   36.   
   37.            case R.styleable.SunshineView_dateSize:  
   38.                dateSize = typedArray.getDimensionPixelSize(attr, defaultSize);  
   39.                break;  
   40.   
   41.            case R.styleable.SunshineView_titleSize:  
   42.                titleSize = typedArray.getDimensionPixelSize(attr,defaultSize);  
   43.                break;  
   44.   
   45.        }  
   46.    }  
   47.    //记得要调用，回收原来的属性  
   48.    typedArray.recycle();  
   
   
3. 初始化画笔
   [java]  view plain  copy

   1. private void initPaint(){  
   2.   
   3.       //星期几标题字体大小  
   4.       titleSize = (int) 1.5*defaultSize;  
   5.   
   6.       mTitlePaint = new TextPaint();  
   7.       mTitlePaint.setColor(Color.parseColor("#ffffff"));  
   8.       mTitlePaint.setTextSize(titleSize);  
   9.       mTitlePaint.setStyle(Paint.Style.STROKE);  
   10.       mTitlePaint.setTextAlign(Paint.Align.CENTER);  
   11.       mTitlePaint.setFlags(Paint.ANTI_ALIAS_FLAG);  
   12.       mTitlePaint.setAntiAlias(true);  
   13.       mTitlePaint.getTextBounds("22", 0, 2, new Rect());  
   14.   
   15.   
   16.       //日期的字体大小  
   17.       mPaint = new TextPaint();  
   18.       mPaint.setColor(normalColor);  
   19.       mPaint.setTextSize(dateSize);  
   20.       mPaint.setStyle(Paint.Style.STROKE);  
   21.       mPaint.setFlags(Paint.ANTI_ALIAS_FLAG);  
   22.       mPaint.setTextAlign(Paint.Align.CENTER);  
   23.       mPaint.setAntiAlias(true);  
   24.       mPaint.getTextBounds("22", 0, 2, new Rect());  
   25.   }  
   
   
4. 测量View的大小
   [java]  view plain  copy

   1. @Override  
   2. protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {  
   3.     super.onMeasure(widthMeasureSpec, heightMeasureSpec);  
   4.   
   5.     /** 
   6.      * 设置宽度 
   7.      */  
   8.     int widthMode = MeasureSpec.getMode(widthMeasureSpec);  
   9.     int widthSize = MeasureSpec.getSize(widthMeasureSpec);  
   10.   
   11.     //match_parent  
   12.     if (widthMode == MeasureSpec.EXACTLY){  
   13.         width = widthSize;  
   14.     } else if(widthMode == MeasureSpec.AT_MOST){  
   15.         width = getResources().getDisplayMetrics().widthPixels - getPaddingLeft() - getPaddingRight();  
   16.     }  
   17.   
   18.     /*** 
   19.      * 设置高度 
   20.      */  
   21.   
   22.     int heightMode = MeasureSpec.getMode(heightMeasureSpec);  
   23.     int heightSize = MeasureSpec.getSize(heightMeasureSpec);  
   24.   
   25.     //match_parent  
   26.     if(heightMode == MeasureSpec.EXACTLY){  
   27.         height = heightSize;  
   28.     }else if(heightMode == MeasureSpec.AT_MOST){  
   29.         height = getResources().getDisplayMetrics().heightPixels - getPaddingTop() - getPaddingBottom();  
   30.     }  
   31.   
   32.     setMeasuredDimension(width, height);  
   33. }  
   
   
5. 接着就是开始画了
   [java]  view plain  copy

   1. @Override  
   2.    protected void onDraw(Canvas canvas) {  
   3.        super.onDraw(canvas);  
   4.      
   5.        drawTitle(canvas);  
   6.        drawDate(canvas);  
   7.    }  
   8.   
   9.    /** 
   10.     * 画表头 
   11.     * @param canvas 
   12.     */  
   13.    private void drawTitle(Canvas canvas){  
   14.        float titleHeight =  mTitlePaint.measureText("二");  
   15.        //画背景  
   16.        Paint bgPaint = new Paint();  
   17.        bgPaint.setColor(titleBackgroundColor);  
   18.        bgPaint.setStyle(Paint.Style.FILL);  
   19.        canvas.drawRect(getPaddingLeft(), getPaddingTop(), width, height / 7, bgPaint);  
   20.   
   21.        //日期表头  
   22.        for(int i=0; i<7; i++){  
   23.            canvas.drawText(mTitles[i],(2*i+1)*width/14,height/14+titleHeight/2,mTitlePaint);  
   24.        }  
   25.    }  
   26.   
   27.    /** 
   28.     * 画日期 
   29.     * @param canvas 
   30.     */  
   31.    private void drawDate(Canvas canvas){  
   32.   
   33.        /** 
   34.         * 画背景 
   35.         */  
   36.        Paint paint = new Paint();  
   37.        paint.setColor(background);  
   38.        paint.setTextSize(titleSize);  
   39.        paint.setStyle(Paint.Style.STROKE);  
   40.        paint.setFlags(Paint.ANTI_ALIAS_FLAG);  
   41.        paint.setAntiAlias(true);  
   42.   
   43.        canvas.drawRect(getPaddingLeft(),height /7,getPaddingRight(),height,paint);  
   44.   
   45.        //当前的日期  
   46.        Calendar calendar = Calendar.getInstance();  
   47.        int mCurrentDay = calendar.get(Calendar.DAY_OF_MONTH);  
   48.        //当前天是星期几  
   49.        int currentDayIndex = calendar.get(Calendar.DAY_OF_WEEK)-1;  
   50.   
   51.        //获取当月的第一天是星期几  
   52.        int firstDayOfMonthIndex = currentDayIndex - (mCurrentDay-1)%7;  
   53.        if(firstDayOfMonthIndex<=0){  
   54.            firstDayOfMonthIndex = firstDayOfMonthIndex + 7;  
   55.        }  
   56.   
   57.        //标记所描绘的日期是星期几  
   58.        int dayWeekIndex = firstDayOfMonthIndex;  
   59.        //画到了第几行  
   60.        int rowIndex = 1;  
   61.   
   62.        int dateHeight = (int) (mPaint.getFontMetrics().ascent+mPaint.getFontMetrics().descent);  
   63.        int paddingTop =  height/14+height /7;  
   64.   
   65.        int monthDays = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);  
   66.        for(int i=1; i<=monthDays; i++){  
   67.   
   68.            if(dayWeekIndex>7){  
   69.                dayWeekIndex=1;  
   70.                rowIndex= rowIndex+1;  
   71.            }  
   72.   
   73.   
   74.            //先计算这天所要显示的位置  
   75.            int positionX = (2*dayWeekIndex-1)*width/14;  
   76.            int positionY = (2*rowIndex-1)*height/12 + dateHeight/2 + paddingTop;  
   77.   
   78.            //判断日期是否是当前日期，是的话则画背景的圆，并且设置相应的日期颜色  
   79.            if(i!=mCurrentDay){  
   80.                //选择其它日期时的背景颜色  
   81.                if(i==Integer.parseInt(selectedDate)){  
   82.                    drawCircle(canvas, positionX, positionY+dateHeight/2, height / 13, selectedBgColor);  
   83.                    mPaint.setColor(Color.parseColor("#232323"));  
   84.                }  
   85.            }else {  
   86.                drawCircle(canvas, positionX, positionY+dateHeight/2, height / 13, currentBgColor);  
   87.                mPaint.setColor(currentColor);  
   88.            }  
   89.            //画日期和重置字体颜色  
   90.            canvas.drawText(i+"",positionX,positionY,mPaint);  
   91.            mPaint.setColor(Color.parseColor("#232323"));  
   92.   
   93.            //星期几递增1  
   94.            dayWeekIndex++;  
   95.   
   96.            //将日期的信息添加进Map，用来监听点击事件的触发条件  
   97.            String dateKey = rowIndex+"_"+dayWeekIndex;  
   98.            datePositionMap.put(dateKey, i + "");  
   99.   
   100.        }  
   101.    }  
   102.   
   103.    /** 
   104.     * 画圆形的背景 
   105.     * @param canvas 
   106.     * @param positionX 
   107.     * @param positionY 
   108.     * @param radius 
   109.     * @param color 
   110.     */  
   111.    private void drawCircle(Canvas canvas,int positionX, int positionY, int radius,int color){  
   112.        mPaint.setStyle(Paint.Style.FILL);  
   113.        mPaint.setColor(color);  
   114.        canvas.drawCircle(positionX, positionY, radius,mPaint);  
   115.    }  
   
   
6. 事件监听
   [java]  view plain  copy

   1. /**用来监听点击事件 
   2.  * 
   3.  * @param event 
   4.  * @return 
   5.  */  
   6. @Override  
   7. public boolean onTouchEvent(MotionEvent event) {  
   8.     int action = event.getAction();  
   9.     if(action==MotionEvent.ACTION_DOWN){  
   10.   
   11.         selectedDate = selectedDate(event);  
   12.         if(selectedDate!=null){  
   13.             invalidate();  
   14.         }else {  
   15.             selectedDate="0";  
   16.         }  
   17.     }  
   18.     return true;  
   19.   
   20. }  
   21.   
   22. /** 
   23.  * 处理单击事件，重绘选中的日期的背景 
   24.  * @param event 
   25.  * @return 
   26.  */  
   27. private String selectedDate(MotionEvent event){  
   28.   
   29.     int paddingTop =  height/14+height /7;  
   30.     int column = (int)Math.ceil(event.getX()/(width/7))+1;  
   31.     int row = (int)Math.ceil((event.getY()-paddingTop)/(height/6));  
   32.   
   33.     String key = row+"_"+column;  
   34.     String clickDay = datePositionMap.get(key);  
   35.   
   36.     return clickDay;  
   37. }  
   
   
7. 布局文件
   [html]  view plain  copy

   1. <?xml version="1.0" encoding="utf-8"?>  
   2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
   3.     xmlns:sunshine="http://schemas.android.com/apk/res-auto"  
   4.     android:layout_width="match_parent"  
   5.     android:layout_height="match_parent"  
   6.     android:orientation="vertical">  
   7.   
   8.     <com.sharemebook.myapplication.SunshineView  
   9.         android:layout_width="match_parent"  
   10.         android:layout_height="282dp"  
   11.         android:background="#ffec00"  
   12.         sunshine:titleBackgroundColor="#ff0000"  
   13.         sunshine:dateSize="15sp"  
   14.         sunshine:normalDateColor="#232323"  
   15.         sunshine:currentDateColor="#ffffff"  
   16.         sunshine:selectedDateBackgroundColor="#7fd2d2d2"  
   17.         sunshine:currentDateBackgroundColor="#ff0000"/>  
   18. </LinearLayout>  

完整的代码

[java]  view plain  copy

1. /** 
2.  * Created by Sanisy on 2016/3/22. 
3.  */  
4. public class SunshineView extends View{  
5.   
6.     private Paint mTitlePaint;  
7.     private Paint mPaint;  
8.   
9.     private int normalColor;  
10.     private int currentColor;  
11.     private int currentBgColor;  
12.     private int selectedBgColor;  
13.     private int dateSize;  
14.   
15.     private int background;  
16.   
17.     //星期几标签字体设定的大小和默认的字体大小  
18.     private int titleBackgroundColor;  
19.     private int titleSize;  
20.     private int defaultSize;  
21.     private String mTitles[] ={"一","二","三","四","五","六","日"};  
22.   
23.     //日历整体的宽度和高度  
24.     private int width;  
25.     private int height;  
26.   
27.     //被点击的日期  
28.     private String selectedDate = "0";  
29.     private Map<String,String> datePositionMap = new HashMap<>();  
30.   
31.     public SunshineView(Context context) {  
32.         this(context, null);  
33.     }  
34.   
35.     public SunshineView(Context context, AttributeSet attrs) {  
36.         this(context, attrs, 0);  
37.     }  
38.   
39.     public SunshineView(Context context, AttributeSet attrs, int defStyleAttr) {  
40.         super(context, attrs, defStyleAttr);  
41.         //默认的字体大小  
42.         defaultSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, 19, getResources().getDisplayMetrics());  
43.         /** 
44.          * 获取自定义属性 
45.          */  
46.         TypedArray typedArray = context.obtainStyledAttributes(attrs,R.styleable.SunshineView,defStyleAttr,0);  
47.   
48.         int attrCount = typedArray.getIndexCount();  
49.         for(int i=0; i<attrCount; i++) {  
50.             int attr = typedArray.getIndex(i);  
51.             switch (attr){  
52.   
53.                 case R.styleable.SunshineView_android_background:  
54.                     background = typedArray.getColor(attr,Color.parseColor("#ffec00"));  
55.                     break;  
56.   
57.                 case R.styleable.SunshineView_titleBackgroundColor:  
58.                     titleBackgroundColor = typedArray.getColor(attr,0xff0000);  
59.                     break;  
60.   
61.                 case R.styleable.SunshineView_normalDateColor:  
62.                     normalColor = typedArray.getColor(attr, 0x232323);  
63.                     break;  
64.   
65.                 case R.styleable.SunshineView_currentDateColor:  
66.                     currentColor = typedArray.getColor(attr, 0xffffff);  
67.                     break;  
68.   
69.                 case R.styleable.SunshineView_currentDateBackgroundColor:  
70.                     currentBgColor = typedArray.getColor(attr, 0xFFDA4336);  
71.                     break;  
72.   
73.                 case R.styleable.SunshineView_selectedDateBackgroundColor:  
74.                     selectedBgColor = typedArray.getColor(attr, 0x7fd2d2d2);  
75.                     break;  
76.   
77.                 case R.styleable.SunshineView_dateSize:  
78.                     dateSize = typedArray.getDimensionPixelSize(attr, defaultSize);  
79.                     break;  
80.   
81.                 case R.styleable.SunshineView_titleSize:  
82.                     titleSize = typedArray.getDimensionPixelSize(attr,defaultSize);  
83.                     break;  
84.   
85.             }  
86.         }  
87.         //记得要调用，回收原来的属性  
88.         typedArray.recycle();  
89.   
90.         initPaint();  
91.     }  
92.   
93.   
94.     private void initPaint(){  
95.   
96.         //星期几标题字体大小  
97.         titleSize = (int) 1.5*defaultSize;  
98.   
99.         mTitlePaint = new TextPaint();  
100.         mTitlePaint.setColor(Color.parseColor("#ffffff"));  
101.         mTitlePaint.setTextSize(titleSize);  
102.         mTitlePaint.setStyle(Paint.Style.STROKE);  
103.         mTitlePaint.setTextAlign(Paint.Align.CENTER);  
104.         mTitlePaint.setFlags(Paint.ANTI_ALIAS_FLAG);  
105.         mTitlePaint.setAntiAlias(true);  
106.         mTitlePaint.getTextBounds("22", 0, 2, new Rect());  
107.   
108.   
109.         //日期的字体大小  
110.         mPaint = new TextPaint();  
111.         mPaint.setColor(normalColor);  
112.         mPaint.setTextSize(dateSize);  
113.         mPaint.setStyle(Paint.Style.STROKE);  
114.         mPaint.setFlags(Paint.ANTI_ALIAS_FLAG);  
115.         mPaint.setTextAlign(Paint.Align.CENTER);  
116.         mPaint.setAntiAlias(true);  
117.         mPaint.getTextBounds("22", 0, 2, new Rect());  
118.     }  
119.   
120.     @Override  
121.     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {  
122.         super.onMeasure(widthMeasureSpec, heightMeasureSpec);  
123.   
124.         /** 
125.          * 设置宽度 
126.          */  
127.         int widthMode = MeasureSpec.getMode(widthMeasureSpec);  
128.         int widthSize = MeasureSpec.getSize(widthMeasureSpec);  
129.   
130.         //match_parent  
131.         if (widthMode == MeasureSpec.EXACTLY){  
132.             width = widthSize;  
133.         } else if(widthMode == MeasureSpec.AT_MOST){  
134.             width = getResources().getDisplayMetrics().widthPixels - getPaddingLeft() - getPaddingRight();  
135.         }  
136.   
137.         /*** 
138.          * 设置高度 
139.          */  
140.   
141.         int heightMode = MeasureSpec.getMode(heightMeasureSpec);  
142.         int heightSize = MeasureSpec.getSize(heightMeasureSpec);  
143.   
144.         //match_parent  
145.         if(heightMode == MeasureSpec.EXACTLY){  
146.             height = heightSize;  
147.         }else if(heightMode == MeasureSpec.AT_MOST){  
148.             height = getResources().getDisplayMetrics().heightPixels - getPaddingTop() - getPaddingBottom();  
149.         }  
150.   
151.         setMeasuredDimension(width, height);  
152.     }  
153.   
154.     @Override  
155.     protected void onDraw(Canvas canvas) {  
156.         super.onDraw(canvas);  
157.       
158.         drawTitle(canvas);  
159.         drawDate(canvas);  
160.     }  
161.   
162.     /** 
163.      * 画表头 
164.      * @param canvas 
165.      */  
166.     private void drawTitle(Canvas canvas){  
167.         float titleHeight =  mTitlePaint.measureText("二");  
168.         //画背景  
169.         Paint bgPaint = new Paint();  
170.         bgPaint.setColor(titleBackgroundColor);  
171.         bgPaint.setStyle(Paint.Style.FILL);  
172.         canvas.drawRect(getPaddingLeft(), getPaddingTop(), width, height / 7, bgPaint);  
173.   
174.         //日期表头  
175.         for(int i=0; i<7; i++){  
176.             canvas.drawText(mTitles[i],(2*i+1)*width/14,height/14+titleHeight/2,mTitlePaint);  
177.         }  
178.     }  
179.   
180.     /** 
181.      * 画日期 
182.      * @param canvas 
183.      */  
184.     private void drawDate(Canvas canvas){  
185.   
186.         /** 
187.          * 画背景 
188.          */  
189.         Paint paint = new Paint();  
190.         paint.setColor(background);  
191.         paint.setTextSize(titleSize);  
192.         paint.setStyle(Paint.Style.STROKE);  
193.         paint.setFlags(Paint.ANTI_ALIAS_FLAG);  
194.         paint.setAntiAlias(true);  
195.   
196.         canvas.drawRect(getPaddingLeft(),height /7,getPaddingRight(),height,paint);  
197.   
198.         //当前的日期  
199.         Calendar calendar = Calendar.getInstance();  
200.         int mCurrentDay = calendar.get(Calendar.DAY_OF_MONTH);  
201.         //当前天是星期几  
202.         int currentDayIndex = calendar.get(Calendar.DAY_OF_WEEK)-1;  
203.   
204.         //获取当月的第一天是星期几  
205.         int firstDayOfMonthIndex = currentDayIndex - (mCurrentDay-1)%7;  
206.         if(firstDayOfMonthIndex<=0){  
207.             firstDayOfMonthIndex = firstDayOfMonthIndex + 7;  
208.         }  
209.   
210.         //标记所描绘的日期是星期几  
211.         int dayWeekIndex = firstDayOfMonthIndex;  
212.         //画到了第几行  
213.         int rowIndex = 1;  
214.   
215.         int dateHeight = (int) (mPaint.getFontMetrics().ascent+mPaint.getFontMetrics().descent);  
216.         int paddingTop =  height/14+height /7;  
217.   
218.         int monthDays = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);  
219.         for(int i=1; i<=monthDays; i++){  
220.   
221.             if(dayWeekIndex>7){  
222.                 dayWeekIndex=1;  
223.                 rowIndex= rowIndex+1;  
224.             }  
225.   
226.   
227.             //先计算这天所要显示的位置  
228.             int positionX = (2*dayWeekIndex-1)*width/14;  
229.             int positionY = (2*rowIndex-1)*height/12 + dateHeight/2 + paddingTop;  
230.   
231.             //判断日期是否是当前日期，是的话则画背景的圆，并且设置相应的日期颜色  
232.             if(i!=mCurrentDay){  
233.                 //选择其它日期时的背景颜色  
234.                 if(i==Integer.parseInt(selectedDate)){  
235.                     drawCircle(canvas, positionX, positionY+dateHeight/2, height / 13, selectedBgColor);  
236.                     mPaint.setColor(Color.parseColor("#232323"));  
237.                 }  
238.             }else {  
239.                 drawCircle(canvas, positionX, positionY+dateHeight/2, height / 13, currentBgColor);  
240.                 mPaint.setColor(currentColor);  
241.             }  
242.             //画日期和重置字体颜色  
243.             canvas.drawText(i+"",positionX,positionY,mPaint);  
244.             mPaint.setColor(Color.parseColor("#232323"));  
245.   
246.             //星期几递增1  
247.             dayWeekIndex++;  
248.   
249.             //将日期的信息添加进Map，用来监听点击事件的触发条件  
250.             String dateKey = rowIndex+"_"+dayWeekIndex;  
251.             datePositionMap.put(dateKey, i + "");  
252.   
253.         }  
254.     }  
255.   
256.     /** 
257.      * 画圆形的背景 
258.      * @param canvas 
259.      * @param positionX 
260.      * @param positionY 
261.      * @param radius 
262.      * @param color 
263.      */  
264.     private void drawCircle(Canvas canvas,int positionX, int positionY, int radius,int color){  
265.         mPaint.setStyle(Paint.Style.FILL);  
266.         mPaint.setColor(color);  
267.         canvas.drawCircle(positionX, positionY, radius,mPaint);  
268.     }  
269.   
270.     /**用来监听点击事件 
271.      * 
272.      * @param event 
273.      * @return 
274.      */  
275.     @Override  
276.     public boolean onTouchEvent(MotionEvent event) {  
277.         int action = event.getAction();  
278.         if(action==MotionEvent.ACTION_DOWN){  
279.   
280.             selectedDate = selectedDate(event);  
281.             if(selectedDate!=null){  
282.                 invalidate();  
283.             }else {  
284.                 selectedDate="0";  
285.             }  
286.         }  
287.         return true;  
288.   
289.     }  
290.   
291.     /** 
292.      * 处理单击事件，重绘选中的日期的背景 
293.      * @param event 
294.      * @return 
295.      */  
296.     private String selectedDate(MotionEvent event){  
297.   
298.         int paddingTop =  height/14+height /7;  
299.         int column = (int)Math.ceil(event.getX()/(width/7))+1;  
300.         int row = (int)Math.ceil((event.getY()-paddingTop)/(height/6));  
301.   
302.         String key = row+"_"+column;  
303.         String clickDay = datePositionMap.get(key);  
304.   
305.         return clickDay;  
306.     }  
307. }