需要完成的主要工作有：

1）  划分显示位置

2）  绘制状态栏背景

3）  绘制电池图标：一共7种图标baticos[7]

4）  绘制时间：只显示时和分

5）  循环检测时间变化，并更改显示时间数值,同步判断电池电量，绘制相应图标

源文件：satusbar.c

#include  < includes.h >

#include

const u8* baticos[7] =

{

   "0:/STATUSBAR/BAT/battery0.bmp",

   "0:/STATUSBAR/BAT/battery1.bmp",

   "0:/STATUSBAR/BAT/battery2.bmp",

   "0:/STATUSBAR/BAT/battery3.bmp",

   "0:/STATUSBAR/BAT/battery4.bmp",

   "0:/STATUSBAR/BAT/battery5.bmp",

   "0:/STATUSBAR/BAT/battery6.bmp"

};

u8 bat_status = 0;

u8 tmer_min = 0;

void statusbar_fun(void)

{

         //绘制状态栏

         //1）绘制状态栏背景 320x12 x=0，y=0，w=320，h=22

         LCD_Fill(0,0,320,22,BLACK);

         //2)绘制电池电量        24X14 右边显示，x=320-5-24，y=2，w=24，h=14

         bat_status = 6;

         minibmp_decode((u8*)baticos[bat_status],320-5-24,4,24,14,0,0);

         //3）绘制时间 30x16  x=320-5-24-10-40  y=3，w=40，h=16

                   {

                            POINT_COLOR = WHITE;

                            tmer_min = calendar.min;

                            LCD_ShowChar(320-5-24-10-40+16,3,':',16,1);

                            LCD_ShowNum(320-5-24-10-40,3,calendar.hour,2,16);

                            LCD_ShowNum(320-5-24-10-40+24,3,calendar.min,2,16);                                                                }

}

//由其他界面函数中的while(1)里面调用，例如主函数中

void statusbar_change(void)

{

         if(tmer_min!=calendar.min)

          {

                   tmer_min = calendar.min;

                   //1）绘制时间

                   POINT_COLOR = WHITE;

                   LCD_Fill(320-5-24-10-40,3,320-5-24-10,19,BLACK);

                   LCD_ShowChar(320-5-24-10-40+16,3,':',16,1);

                   LCD_ShowNum(320-5-24-10-40,3,calendar.hour,2,16);                                                                                

                   LCD_ShowNum(320-5-24-10-40+24,3,calendar.min,2,16);       

                   //2)绘制电池电量 //目前没有添加电池，只是循环改变而已，如果之后添加电池，根据获得的电池量，修改bat_status的值

                   if(bat_status == 0||bat_status>6)

                           bat_status =6;

                   else

                            bat_status--;

                   minibmp_decode((u8*)baticos[bat_status],320-5-24,4,24,14,0,0);                                                                                                                                            

                  }

}

在头文件中添加，以便其他源文件中的函数调用

//add by joqian  for statusbar

extern u8 bat_status;

extern u8 tmer_min;

extern void statusbar_change(void);

显示效果：