AS3 Flash - 保存movieclip爲PNG

Question

我使用AS3閃存。有人能幫我嗎？我想，如果你按下save_image按鈕，那麼它將「guy」movieclip保存爲png。但它不工作：

import com.adobe.images.JPGEncoder; 
import com.adobe.images.PNGEncoder 

save_image.addEventListener(MouseEvent.CLICK, save_image_function); 
function save_image_function(event:MouseEvent):void 
{ 
var bmd:BitmapData = new BitmapData(50,50); 
bmd.draw(guy); 
var encorder:PNGEncoder = new PNGEncoder(); 
var bytes:ByteArray = encorder.encode(bmd); 
var file:FileReference = new FileReference(); 
file.save(bytes, "Image.png"); 
} 

有人可以幫我嗎？錯誤代碼是這樣的：

ReferenceError: Error #1069: Property encode not found on com.adobe.images.PNGEncoder and there is no default value. at pr2sets_fla::MainTimeline/save_image_function()

Answer 1

編碼方法是靜態的，你需要這樣調用它。

var bytes:ByteArray = PNGEncoder.encode(bmd);