安卓中根据时间转换成小时/分钟/秒的小工具

private String to2Str(int i){

if( i > 9){

return i+"";
}else{

return "0"+i;
}

}

private String toTimeStr(int secTotal){

String result = null;
secTotal = secTotal / 1000;
int hour = secTotal / 3600;
int min = ( secTotal%3600 ) / 60;
int sec = ( secTotal%3600 ) % 60;
result = to2Str(hour)+":"+to2Str(min)+":"+to2Str(sec);

return result;
}