斯凯Mrp开发源码——定时器使用demo

#include "mrc_base.h" #define STR_VALUE "\x6b\x22\x8f\xce\x8f\xdb\x51\x65\x00\x4d\x00\x79\x00\x74\x00\x68\x00\x72\x00\x6f\x00\x61\x00\x64\x4e\x16\x75\x4c\xff\x01\x00\x00" #define SPEED_MAX 40 int32 g_playState; //0：运行中；1：暂停 int32 g_timerH; //定时器句柄 int32 g_speed; //当前的滚动速度 void TimerCB(int32 data) { static int32 x_Value = 0; mr_screeninfo ms; mrc_getScreenInfo(&ms); mrc_clearScreen(0, 0, 0); mrc_drawText(STR_VALUE, x_Value, ms.height / 2, 255, 255, 255, TRUE, MR_FONT_MEDIUM); mrc_refreshScreen(0, 0, ms.width, ms.height); x_Value = (x_Value - data + ms.width) % ms.width; mrc_timerStart(g_timerH, 200, g_speed, TimerCB, 0); } //Mythroad入口框架函数 int32 mrc_init(void) { g_speed = 5; g_timerH = 0; g_timerH = mrc_timerCreate(); if(g_timerH) { g_playState = 0; mrc_timerStart(g_timerH, 200, g_speed, TimerCB, 0); } return MR_SUCCESS; } //Mythroad平台事件处理函数 int32 mrc_appEvent(int32 code, int32 param0, int32 param1) { switch(code) { case MR_KEY_PRESS: if(param0 == MR_KEY_LEFT) {//滚动加速 g_speed = (g_speed + 1) % SPEED_MAX; } else if(param0 == MR_KEY_RIGHT) {//滚动减速 g_speed = (g_speed - 1 + SPEED_MAX) % SPEED_MAX; } else if(param0 == MR_KEY_SELECT) {//OK键开始/暂停滚动 if(g_playState) { mrc_timerStart(g_timerH, 200, g_speed, TimerCB, 0); g_playState = 0; } else { mrc_timerStop(g_timerH); g_playState = 1; } } else if(param0 == MR_KEY_SOFTRIGHT) {//右软键退出 mrc_exit(); } break; default: break; } return MR_SUCCESS; } //Mythroad平台外部事件中断函数（电话、SMS、闹钟等） int32 mrc_appPause() { return MR_SUCCESS; } //Mythroad平台外部事件结束恢复函数 int32 mrc_appResume() { return MR_SUCCESS; } //Mythroad平台退出函数 int32 mrc_exitApp(void) { if(g_timerH) { mrc_timerDelete(g_timerH); g_timerH = 0; } return MR_SUCCESS; }