/**

 * 웹뷰에 케시가 쌓이는것을 앱이 종료할때마다 비우는 함수

 */

private void clearApplicationCache(java.io.File dir){
	if(dir==null)
		dir = getCacheDir();
	else;

	if(dir==null)
		return;
	else;

	java.io.File[] children = dir.listFiles();
	try{

		for(int i=0;i<children.length;i++)
			if(children[i].isDirectory())
				clearApplicationCache(children[i]);
			else children[i].delete();
	}
	catch(Exception e){}
}


@Override
public void onDestroy() {
	super.onDestroy();
	clearApplicationCache(null);
}