android 日历图标显示星期

来源：互联网发布：儿童教育软件推荐编辑：程序博客网时间：2024/05/23 23:36

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：

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

Paint mWeekPaint = new Paint();            mWeekPaint.setTypeface(Typeface.DEFAULT_BOLD);            mWeekPaint.setTextSize((int)10F * mDensity);            mWeekPaint.setColor(0xff000000);            mWeekPaint.setAntiAlias(true);                        Rect rect1 = new Rect();            mWeekPaint.getTextBounds(weekString,0,weekString.length(),rect1);           int hoffset0 = 2;            int width10 = rect1.right - rect1.left;            int height10 = rect1.bottom - rect1.top + hoffset0;            int width20 = calendarIcon.getWidth();            int height20 = calendarIcon.getHeight() ;//+ hoffset0;                        canvas.drawText(weekString,(width20 - width10)/2 - rect1.left,height10,mWeekPaint);

修改后的函数为：

static Bitmap createCalendarIconBitmap(Drawable icon, Context context){        Bitmap calendarIcon = createIconBitmap(icon,context);        String dayString  = String.valueOf(Calendar.getInstance().get(Calendar.DAY_OF_MONTH));int dayOfWeek = Calendar.getInstance().get(Calendar.DAY_OF_WEEK);         String weekStrings[] = {"周日","周一","周二","周三","周四","周五","周六"}; String weekString = weekStrings[dayOfWeek];        Log.d("tanfusheng","weekString"+weekString);        synchronized (sCanvas) {            final Canvas canvas = sCanvas;            canvas.setBitmap(calendarIcon);                        final float mDensity = context.getResources().getDisplayMetrics().density;    Paint mWeekPaint = new Paint();            mWeekPaint.setTypeface(Typeface.DEFAULT_BOLD);            mWeekPaint.setTextSize((int)10F * mDensity);            mWeekPaint.setColor(0xff000000);            mWeekPaint.setAntiAlias(true);            Rect rect1 = new Rect();            mWeekPaint.getTextBounds(weekString,0,weekString.length(),rect1);            int hoffset0 = 2;            int width10 = rect1.right - rect1.left;            int height10 = rect1.bottom - rect1.top + hoffset0;            int width20 = calendarIcon.getWidth();            int height20 = calendarIcon.getHeight() ;//+ hoffset0;                        canvas.drawText(weekString,(width20 - width10)/2 - rect1.left,height10,mWeekPaint);                        Paint mDatePaint = new Paint();            mDatePaint.setTypeface(Typeface.DEFAULT_BOLD);            mDatePaint.setTextSize((int)30F * mDensity);            mDatePaint.setColor(0xff000000);            mDatePaint.setAntiAlias(true);            Rect rect = new Rect();            mDatePaint.getTextBounds(dayString,0,dayString.length(),rect);            int hoffset = 20;            int width1 = rect.right - rect.left;            int height1 = rect.bottom - rect.top;            int width2 = calendarIcon.getWidth();            int height2 = calendarIcon.getHeight() + hoffset;                        canvas.drawText(dayString,(width2 - width1)/2 - rect.left,(height2 - height1)/2 - rect.top,mDatePaint);                        canvas.setBitmap(null);            return calendarIcon;        }    }

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