ScheduleCocos2d-iphone中的崩溃

Question

I try to delete a target with delay time, and I code like this

-(void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
  UITouch *touch = [touches anyObject];
  CGPoint location = [self convertTouchToNodeSpace: touch];

  targetsToRemove = [[NSMutableArray array] init]; 
  for (CCSprite *target in _targets) {// here _targets is NSMutableArray
    if (CGRectContainsPoint(target.boundingBox, location)) {
        [targetsToRemove addObject:target];
    }
  }
  [self scheduleOnce:@selector(delayToDelete) delay:0.3];
}

the delay delete code is

-(void)delayToDelete
{
 for (CCSprite *target in targetsToRemove) { //it will crash at this line, when I run
    if (target.tag == 1) {
        CCLOG(@"do something");

    }
    else {
        CCLOG(@"do nothing");
    }
 }
}

if I don't use '[self scheduleOnce:@selector(delayToDelete) delay:0.3];', just use [self delayToDelete], it will run well, so what the problem with this code? Thanks

Answer 1

When you add target to targetsToRemove , a reference to an object in _target is being added to targetsToRemove . So when _target is deallocated so is the object you have added targetsToRemove

Try [targetsToRemove addObject:[target Copy]];

If that works then _target is being deallocated.