Android通过图片名称获取资源id

/**
* 根据图片名称获取R.java中对应的id
*
* @param name
* @return
*/
public static int getImageIdByName (String name) {
int value = 0;
if (null != name) {
if (name.indexOf(".") != -1) {
name = name.substring(0, name.indexOf("."));
}
Class<com.aaa.bbbb.R.drawable> cls = R.drawable.class;
try {
value = cls.getDeclaredField(name).getInt(null);
} catch (Exception e) {

}
}
return value;
}