EventManager

1. 创建监听器

var listener = cc.EventListener.create({event: cc.EventListener.TOUCH_ONE_BY_ONE,swallowTouches: true,onTouchBegan: function (touch, event) {var locationInNode = selfPointer.convertToNodeSpace(touch.getLocation());var s = selfPointer.getContentSize();var rect = cc.rect(0, 0, s.width, s.height);if (cc.rectContainsPoint(rect, locationInNode)) {selfPointer.setColor(cc.color.RED);return true;}return false;},onTouchMoved: function (touch, event) {//this.setPosition(this.getPosition() + touch.getDelta());},onTouchEnded: function (touch, event) {selfPointer.setColor(cc.color.WHITE);if(selfPointer._removeListenerOnTouchEnded)cc.eventManager.removeListener(selfPointer._listener);}});

2. 加入监听器

cc.eventManager.addListener(listener, this);

3. ToggleMenuItem加入监听以及移除监听

  var toggleItem = cc.MenuItemToggle.create(cc.MenuItemFont.create("Enabled"), cc.MenuItemFont.create("Disabled"),function (sender) {if (enable) {cc.eventManager.removeListener(listener1);statusLabel.setString("The sprite could not be touched!");enable = false;} else {cc.eventManager.addListener(listener1, sprite1);statusLabel.setString("The sprite could be touched!");enable = true;}});toggleItem.setPosition(origin.x + size.width/2, origin.y + 80);var menu = cc.Menu.create(toggleItem);menu.setPosition(0, 0);menu.setAnchorPoint(0, 0);this.addChild(menu, 1);

4.自定义事件

  this._listener1 = cc.EventListener.create({event: cc.EventListener.CUSTOM,eventName: "game_custom_event1",callback: function(event){statusLabel.setString("Custom event 1 received, " + event.getUserData() + " times");}});cc.eventManager.addListener(this._listener1, 1);var sendItem = cc.MenuItemFont.create("Send Custom Event 1", function(sender){++selfPointer._item1Count;var event = new cc.EventCustom("game_custom_event1");event.setUserData(selfPointer._item1Count.toString());cc.eventManager.dispatchEvent(event);});sendItem.setPosition(origin.x + size.width/2, origin.y + size.height/2);

5.键盘事件

  cc.eventManager.addListener({event: cc.EventListener.KEYBOARD,onKeyPressed:  function(keyCode, event){var label = event.getCurrentTarget();label.setString("Key " + String.fromCharCode(keyCode) + "(" + keyCode.toString()  + ") was pressed!");},onKeyReleased: function(keyCode, event){var label = event.getCurrentTarget();label.setString("Key " + String.fromCharCode(keyCode) + "(" + keyCode.toString()  + ") was released!");}}, statusLabel);

6.加速事件

cc.eventManager.addListener({event: cc.EventListener.ACCELERATION,callback: function(acc, event){var target = event.getCurrentTarget();var ballSize  = target.getContentSize();var ptNow  = target.getPosition();//cc.log("acc: x = " + acc.x + ", y = " + acc.y);target.x = SpriteAccelerationEventTest._fix_pos(ptNow.x + acc.x * 9.81,(cc.visibleRect.left.x + ballSize.width / 2.0), (cc.visibleRect.right.x - ballSize.width / 2.0));target.y = SpriteAccelerationEventTest._fix_pos(ptNow.y + acc.y * 9.81,(cc.visibleRect.bottom.y + ballSize.height / 2.0), (cc.visibleRect.top.y - ballSize.height / 2.0));}}, sprite);

7.回调函数

 this.runAction(cc.Sequence.create(cc.DelayTime.create(5.0),cc.CallFunc.create(function () {this._spriteSaved = true;this._sprite.retain();this._sprite.removeFromParent();}, this),cc.DelayTime.create(5.0),cc.CallFunc.create(function () {this._spriteSaved = false;this.addChild(this._sprite);if(!cc.sys.isNative)cc.eventManager.addListener(listener1, this._sprite);this._sprite.release();}, this)));

8.面向切面

this._event1 = dispatcher.addCustomListener(cc.Director.EVENT_AFTER_UPDATE, this.onEvent1.bind(this));this._event2 = dispatcher.addCustomListener(cc.Director.EVENT_AFTER_VISIT, this.onEvent2.bind(this));this._event3 = dispatcher.addCustomListener(cc.Director.EVENT_AFTER_DRAW, function(event) {selfPointer._label3.setString("Draw: " + selfPointer._count3++);});this._event4 = dispatcher.addCustomListener(cc.Director.EVENT_PROJECTION_CHANGED, function(event) {selfPointer._label4.setString("Projection: " + selfPointer._count4++);});

9.移除监听

   cc.eventManager.removeListeners(cc.EventListener.TOUCH_ONE_BY_ONE);

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