/**
* 根据图片的名称获取对应的资源id
* @param resourceName
* @return
*/
public int getDrawResourceID(String resourceName) {
Resources res=getResources();
int picid = res.getIdentifier(resourceName,"drawable",getPackageName());
return picid;
}原文：http://blog.csdn.net/sange77/article/details/41038693