タイマー周りの処理

NSTimerTest.m

/*
 * main
 */
- (void)run{
  // タイマーで使うデータ
  NSNumber *number = [[NSNumber alloc] initWithInt:1];    
  NSMutableDictionary *dic = [NSMutableDictionary dictionaryWithObject:number forKey:@"count"];

  // タイマーを作成
  NSTimer *timer = [NSTimer
    scheduledTimerWithTimeInterval:3.f
    target:self
    selector:@selector(polling:)
    userInfo:dic
    repeats:YES];

  // stop
  [timer invalidate];

  // stat
  [timer fire];
  
  // status
  [timer isValid];

}

/*
 * Polling処理
 */
- (void)polling: (NSTimer*)timer{
  NSNumber *number = [[timer userInfo] objectForKey:@"count"];
  NSLog(@"count up:%@", number);
  int sum = [number intValue];
  sum = sum + 1;
  [[timer userInfo] setObject:[[NSNumber alloc]initWithInt:sum] forKey:@"count"];

}