How to read/write a boolean when implementing the Parcelable interface?

Question

I'm trying to make an ArrayList Parcelable in order to pass to an activity a list of custom object. I start writing a myObjectList class which extends ArrayList<myObject> and implement Parcelable.

Some attributes of MyObject are boolean but Parcel don't have any method read/writeBoolean.

What is the best way to handle this?

Answer 1

Here's how I'd do it...

writeToParcel:

dest.writeByte((byte) (myBoolean ? 1 : 0));     //if myBoolean == true, byte == 1 

readFromParcel:

myBoolean = in.readByte() != 0;     //myBoolean == true if byte != 0 

Answer 2

You could also make use of the writeValue method. In my opinion that's the most straightforward solution.

dst.writeValue( myBool ); 

Afterwards you can easily retrieve it with a simple cast to Boolean:

boolean myBool = (Boolean) source.readValue( null ); 

Under the hood the Android Framework will handle it as an integer:

writeInt( (Boolean) v ? 1 : 0 );