ParcelableExt is to make Parcelable be use easily as like as use Serializable.
usage: just implements ParcelableExt instead of implements Parcelable,and needn't to do any more!
//just implements ParcelableExt:
public class TestParam implements ParcelableExt {
private static String TAG = "TAG";
private int age;
public transient String name;
public String address = "address";
}