Reading and writing java.util.Date from Parcelable class

android, java

Solution

Use writeSerializable where Date is Serializable. (But not a good idea. See below for another better way)

@Override
public void writeToParcel(Parcel out, int flags) {
   // Write object
   out.writeSerializable(date_object);

}

private void readFromParcel(Parcel in) {
   // Read object
    date_object = (java.util.Date) in.readSerializable();

}

But Serializing operations consume much performance. How can overcome this?

So better use is to convert date into Long while writing, and read Long and pass to Date constructor to get Date. See below code

   @Override
    public void writeToParcel(Parcel out, int flags) {
       // Write long value of Date
       out.writeLong(date_object.getTime());

    }

    private void readFromParcel(Parcel in) {
       // Read Long value and convert to date
        date_object = new Date(in.readLong());

    }

Problem

Original source