Objective c 目标C:远程使计时器失效
当调用另一个方法时,如何使一个方法中的计时器无效?基本上,当调用Objective c 目标C:远程使计时器失效,objective-c,ios,methods,timer,Objective C,Ios,Methods,Timer,当调用另一个方法时,如何使一个方法中的计时器无效?基本上,当调用tapFig时,我希望它向moveStickFig发送一条消息以使计时器无效 -(void) moveStickFig:(NSTimer *)timer { UIButton *stick = (UIButton *)timer.userInfo; CGPoint oldPosition = stick.center; stick.center = CGPointMake(oldPosition.x + 1
tapFig
时,我希望它向moveStickFig
发送一条消息以使计时器无效
-(void) moveStickFig:(NSTimer *)timer {
UIButton *stick = (UIButton *)timer.userInfo;
CGPoint oldPosition = stick.center;
stick.center = CGPointMake(oldPosition.x + 1 , oldPosition.y);
if (oldPosition.x == 900) {
[stick removeFromSuperview];
healthCount--;
NSLog(@"%d", healthCount);
[healthBar setImage:[UIImage imageNamed:[NSString stringWithFormat:@"health%d.png",healthCount]]];
}
}
-(void) tapFig:(id)sender {
UIButton *stick = (UIButton *)sender;
count++;
score.text = [NSString stringWithFormat:@"%d", count];
[stick removeFromSuperview];
[stick release];
}
我想您需要在
moveStickFig
中设置一个标志,当调用tapFig
时,该标志将设置为true
-(void) moveStickFig:(NSTimer *)timer
{
if( isTimerInvalidateSet )
{
[ self timer:invalidate ];
return;
}
// ......
}
// you need to pass the same timer instance to `tapFig` that you earlier passed to `moveStickFig`.
-(void) tapFig:(id)sender
{
isTimerInvalidateSet = true;
[ self moveStickFig:theTimerInstance ] ; // theTimerInstance is same as earlier you passed to `moveStickFig`
isTimerInvalidateSet = false;
// ......
}
注意:通常,您会设置计时器,以每秒固定的帧数重复调用函数。计时器的工作就是按这个速率调用它。不需要重复传递计时器实例。如果这是你想要的,那好吧<代码>但是,如果您需要继续游戏逻辑,则需要将isTimerInvalidateSet重置为false。希望这有帮助