Question

我使用了cocos2d 2.0，在精灵动画切换时观察到崩溃。这是代码

@interface PPActor : CCSprite
{
    CCRepeatForever *pirateIdleAnim;
    CCSequence      *mPirateDashAnim;
    CCRepeatForever *mPirateRocketAnim;

}

//案例1：第二次播放时崩溃

-(void)loadAnim
{

   CCAnimate *AnimActions  = [CCAnimate actionWithAnimation:animation];
   id calFun = [CCCallFunc actionWithTarget:self selector:@selector(dashAnimDone)];                                        
   mPirateDashAnim = [CCSequence actions:AnimActions, calFun, nil];
   mPirateDashAnim.tag = kTagDashAnim;
}

-(void)runDashAnim
{
       [self stopActionByTag: kTagDashAnim];
       [self runAction:mPirateDashAnim];
}

//案例2：没有崩溃，但显示内存泄漏...（使用保留）

-(void)loadAnim
{

   CCAnimate *AnimActions  = [CCAnimate actionWithAnimation:animation];
   id calFun = [CCCallFunc actionWithTarget:self selector:@selector(dashAnimDone)];                                     
   mPirateDashAnim = [[CCSequence actions:AnimActions, calFun, nil] retain];
   mPirateDashAnim.tag = kTagDashAnim;
}

-(void)runDashAnim
{
       [self stopActionByTag: kTagDashAnim];
       [self runAction:mPirateDashAnim];
}

//案例3：再次发现崩溃

-(void)loadAnim
{

   CCAnimate *AnimActions  = [CCAnimate actionWithAnimation:animation];
   id calFun = [CCCallFunc actionWithTarget:self selector:@selector(dashAnimDone)];                                     
   mPirateDashAnim = [CCSequence actions:AnimActions, calFun, nil];
   mPirateDashAnim.tag = kTagDashAnim;
}

-(void)runDashAnim
{
       [self stopActionByTag: kTagDashAnim];
       [self runAction:[mPirateDashAnim copy]];
}

如何克服此崩溃和内存泄漏？

Answer 1

你总是在runDashAnim之前调用loadAnim吗？因为动作是一次性对象。当动作结束时，它会自行释放。你必须再次创建动作。

请不要遵循建议保留操作的“最佳做法”。这是不好的做法，因为除非你知道一个动作的内部行为（即代码），否则存在创建内存泄漏或崩溃的风险，因为并非所有动作都可以以这种方式重用。

Cocos2d第二次播放动画导致崩溃

1 个答案: