NSTimer禁用UIView中的dealloc

@interface someview:UIView{
  NSTimer* timer;
}
@end

@implementation someview

-(void)dealloc{
  NSLog(@\"dealloc someview\");
  [timer invalidate];
  timer = nil;
}
-(void)runTimer{
//
}
-(void)someMethod{

  timer = [NSTimer timerWithTimeInterval:2.0f target:self selector:@selector(runTimer) userInfo:nil repeats:YES];
}

@end

- (void)removeFromSuperview
{
    [timer invalidate];
    timer = nil;

    [super removeFromSuperview];
}

removeFromSuperview

- (void)didMoveToSuperview
{
    [super didMoveToSuperview];

    if (!self.superview)
    {
        [timer invalidate];
        timer = nil;
    }
}