我正在为 RKObjectManager 实现超时。我的代码片段如下:
-(void)getObjects
{
RKObjectManager *sharedManager = [RKObjectManager sharedManager];
[self showLoading];
[sharedManager loadObjectsAtResourcePath:self.resourcePath delegate:self];
// Setting timeout here. goto failure
self.nTimer = [NSTimer scheduledTimerWithTimeInterval:TIMEOUT_INTERVAL target:self selector:@selector(didEncounterError) userInfo:nil repeats:NO];
}
- (void) didEncounterError
{
[self hideLoading];
[self standardErrorHandling];
//invalidate timer, this is done to ensure that if error occurs before timer expiry time, the error will not show again when timer is up (ISSUE HERE)
[self.nTimer invalidate];
}
- (void)objectLoader:(RKObjectLoader*)objectLoader didLoadObjects:(NSArray*)objects
{
....
//invalidate timer if load is successful (no issue here)
[self.nTimer invalidate];
}
- (void)objectLoader:(RKObjectLoader*)objectLoader didFailWithError:(NSError*)error
{
....
//trigger encounter error method
[self didEncounterError];
}
在上面的实现中,我总是会在“遇到错误”方法中使定时器失效。这是为了减轻在计时器到期之前发生错误的情况。在这种情况下,我想使计时器无效,以防止再次弹出错误消息。
但是,在发生错误后(在计时器到期之前),我仍然第二次收到错误消息。“遇到错误”方法中的失效似乎不起作用。关于我的代码有什么问题的任何建议?