timer 没释放。代码我给你改好了

[295060456]

【你无非是想单例，是对的，但是单例化和销毁是下面这么写的，只有销毁才会调用dealloc，这个时机才会关闭timer】

• (void)dealloc{
  NSLog(@"%@",JobsLocalFunc);
  if (timer) {
  dispatch_source_cancel(timer);
  }
  // [[NSNotificationCenter defaultCenter] removeObserver:self];
  }
  /// 单例化和销毁
  +(void)destroySingleton{
  static_codeViewOnceToken = 0;
  static_codeView = nil;
  }

static WMZCodeView *static_codeView = nil;
static dispatch_once_t static_codeViewOnceToken;
+(instancetype)sharedInstance{
dispatch_once(&static_codeViewOnceToken, ^{
static_codeView = WMZCodeView.new;
});return static_codeView;
}