上周游戏新版本发布，新版本iOS提交上去，过审释放之后，看了一下bugly，一大片[AVPlayerItem seekToTime:toleranceBefore:toleranceAfter:completionHandler:] Seeking is not possible to time {INVALID}错误，经过查找答案之后，找出原因：
[self.moviePlayer seekToTime:_curTime toleranceBefore:kCMTimeZero toleranceAfter:kCMTimeZero completionHandler:^(BOOL finished) {
if (finished) {
[self.moviePlayer play];
}
}];
原来这段代码在切后台回到前端的时候是有可能出现异常的。后修改如下：
@try
{
if (CMTIME_IS_VALID(_curTime))
{
[self.moviePlayer seekToTime:_curTime toleranceBefore:kCMTimeZero toleranceAfter:kCMTimeZero completionHandler:^(BOOL finished) {
if (finished) {
[self.moviePlayer play];
}
}];
}else{
[self.moviePlayer play];
}
}
@catch (NSException * exception) {
[self.moviePlayer play];
}
记录一下，防止下次踩坑
