android launcher 日历icon显示星期

转自：http://blog.youkuaiyun.com/tfslovexizi/article/details/28437711

上一篇文档中谈到了在日历图标上显示当前日期，

现在我添加了几行代码，可以在日历图标上显示对应的星期；

修改源码是在Utilities.java中

函数createCalendarIconBitmap

添加几行代码：

[java]  view plain copy print ?

1. int dayOfWeek = Calendar.getInstance().get(Calendar.DAY_OF_WEEK);  
2.          String weekStrings[] = {"周日","周一","周二","周三","周四","周五","周六"};  
3.          String weekString = weekStrings[dayOfWeek];  

[java]  view plain copy print ?

1. Paint mWeekPaint = new Paint();  
2.             mWeekPaint.setTypeface(Typeface.DEFAULT_BOLD);  
3.             mWeekPaint.setTextSize((int)10F * mDensity);  
4.             mWeekPaint.setColor(0xff000000);  
5.             mWeekPaint.setAntiAlias(true);  
6.               
7.             Rect rect1 = new Rect();  
8.             mWeekPaint.getTextBounds(weekString,0,weekString.length(),rect1);  
9.            int hoffset0 = 2;  
10.             int width10 = rect1.right - rect1.left;  
11.             int height10 = rect1.bottom - rect1.top + hoffset0;  
12.             int width20 = calendarIcon.getWidth();  
13.             int height20 = calendarIcon.getHeight() ;//+ hoffset0;  
14.               
15.             canvas.drawText(weekString,(width20 - width10)/2 - rect1.left,height10,mWeekPaint);  

修改后的函数为：

[java]  view plain copy print ?

1. static Bitmap createCalendarIconBitmap(Drawable icon, Context context){  
2.         Bitmap calendarIcon = createIconBitmap(icon,context);  
3.         String dayString  = String.valueOf(Calendar.getInstance().get(Calendar.DAY_OF_MONTH));  
4.         int dayOfWeek = Calendar.getInstance().get(Calendar.DAY_OF_WEEK);  
5.          String weekStrings[] = {"周日","周一","周二","周三","周四","周五","周六"};  
6.          String weekString = weekStrings[dayOfWeek];  
7.         Log.d("tanfusheng","weekString"+weekString);  
8.         synchronized (sCanvas) {  
9.             final Canvas canvas = sCanvas;  
10.             canvas.setBitmap(calendarIcon);  
11.               
12.             final float mDensity = context.getResources().getDisplayMetrics().density;  
13.               
14.         Paint mWeekPaint = new Paint();  
15.             mWeekPaint.setTypeface(Typeface.DEFAULT_BOLD);  
16.             mWeekPaint.setTextSize((int)10F * mDensity);  
17.             mWeekPaint.setColor(0xff000000);  
18.             mWeekPaint.setAntiAlias(true);  
19.             Rect rect1 = new Rect();  
20.             mWeekPaint.getTextBounds(weekString,0,weekString.length(),rect1);  
21.             int hoffset0 = 2;  
22.             int width10 = rect1.right - rect1.left;  
23.             int height10 = rect1.bottom - rect1.top + hoffset0;  
24.             int width20 = calendarIcon.getWidth();  
25.             int height20 = calendarIcon.getHeight() ;//+ hoffset0;  
26.               
27.             canvas.drawText(weekString,(width20 - width10)/2 - rect1.left,height10,mWeekPaint);  
28.               
29.             Paint mDatePaint = new Paint();  
30.             mDatePaint.setTypeface(Typeface.DEFAULT_BOLD);  
31.             mDatePaint.setTextSize((int)30F * mDensity);  
32.             mDatePaint.setColor(0xff000000);  
33.             mDatePaint.setAntiAlias(true);  
34.             Rect rect = new Rect();  
35.             mDatePaint.getTextBounds(dayString,0,dayString.length(),rect);  
36.             int hoffset = 20;  
37.             int width1 = rect.right - rect.left;  
38.             int height1 = rect.bottom - rect.top;  
39.             int width2 = calendarIcon.getWidth();  
40.             int height2 = calendarIcon.getHeight() + hoffset;  
41.               
42.             canvas.drawText(dayString,(width2 - width1)/2 - rect.left,(height2 - height1)/2 - rect.top,mDatePaint);  
43.               
44.             canvas.setBitmap(null);  
45.             return calendarIcon;  
46.         }  
47.     }