cocos creator 屏幕截取

cc. Class({

extends: cc. Component,

properties: {

// 被截图对象

cocos: cc. Sprite,

// 显示截图的精灵

show: cc. Sprite,

// 被截图对象的虚假替身

cocosImage: cc. Sprite,

},

shot: function () {

// 注意，EditBox，VideoPlayer，Webview 等控件无法被包含在截图里面

// 因为这是 OpenGL 的渲染到纹理的功能，上面提到的控件不是由引擎绘制的

if ( CC_JSB) {

// 创建 renderTexture

var renderTexture = cc. RenderTexture. create( 195, 270);

//实际截屏的代码

renderTexture. begin();

//this.richText.node 是我们要截图的节点，如果要截整个屏幕，可以把 this.richText 换成 Canvas 切点即可

this. cocos. _sgNode. visit();

renderTexture. end();

// 获取SpriteFrame

var nowFrame = renderTexture. getSprite(). getSpriteFrame();

// 赋值给需要截图的精灵

this. show. spriteFrame = nowFrame;

// 显示虚假的代替精灵

this. cocosImage. node. active = true;

this. cocosImage. spriteFrame = nowFrame;

// 翻转得到的纹理

var action = cc. flipY( true);

this. show. node. runAction( action);

var action1 = cc. flipY( true);

this. cocosImage. node. runAction( action1);

// 隐藏被截图的对象

this. cocos. node. active = false;

}

},

resetPostion: function () {

this. cocos. node. active = true;

this. cocosImage. node. active = false

},

// called every frame

update: function ( dt) {

// this.cocos.node.position = this.cacheP;

},

});