对于两个初始时设置为Sensor的刚体，不会触发preSolve和postSolve

Main.as

package{
    import Box2D.Common.Math.b2Vec2;
    import Box2D.Dynamics.b2Body;
    import Box2D.Dynamics.Contacts.b2Contact;
    import Box2D.Collision.b2Manifold;
    import Box2D.Dynamics.b2ContactImpulse;
    
    public class Main extends BaseMain{
        
        
        public function Main(){
            super(new b2Vec2(0,0));
        }
        
        
        override protected function init():void{
            var boxA:b2Body=createBox(30,30,50,300);
            var boxB:b2Body=createBox(40,40,700,300);
            boxA.SetUserData({type:"boxA"});
            boxB.SetUserData({type:"boxB"});
            boxA.SetSensor(true);
            boxB.SetSensor(true);
            boxA.SetPreSolveCallback(preSolve);
            boxA.SetContactBeginCallback(contactBegin);
            boxA.SetContactEndCallback(contactEnd);
            boxA.SetPostSolveCallback(postSolve);
        }
        
        private function contactBegin(contact:b2Contact,other:b2Body):void{
            trace("contactBegin:"+other.GetUserData().type);
        }
        
        private function contactEnd(contact:b2Contact,other:b2Body):void{
            trace("contactEnd:"+other.GetUserData().type);
        }
        
        private function postSolve(contact:b2Contact,impulse:b2ContactImpulse,other:b2Body):void{
            trace("postSolve:"+other.GetUserData().type);
        }
        
        private function preSolve(contact:b2Contact,oldManifold:b2Manifold,other:b2Body):void{
            trace("preSolve:"+other.GetUserData().type);
            
        }
        
        override protected function stepBefore():void{ 
            
        }
        
        
    };
}

测试源码：链接：http://pan.baidu.com/s/1bpELP6n 密码：pep2