IntentでArrayListを受け渡す

http://stackoverflow.com/questions/15731029/array-list-intent-extra-in-java
Serializableインターフェースを実装したラッパークラスを使うとよいらしい

public class ItemDetailsWrapper implements Serializable {

    private static final long serialVersionUID = 1L;
    private ArrayList<ItemDetails> itemDetails;

    public ItemDetailsWrapper(ArrayList<ItemDetails> items) {
        this.itemDetails = items;
    }

    public ArrayList<ItemDetails> getItemDetails() {
        return itemDetails;
    }
}

public class ItemDetails implements Serializable {

    private static final long serialVersionUID = 1L;

    // getters, setters and properties
}

ItemDetailsWrapper wrapper = new ItemDetailsWrapper(list);
Intent i = new Intent(<context>, <targetActivity>);
i.putExtra("obj", wrapper); // i.putExtra("obj", new ItemDetailsWrapper(list));
// retrieving 
ItemDetailsWrapper wrap = 
                    (ItemDetailsWrapper) getIntent().getSerializableExtra("obj");
ArrayList<ItemDetails> list = wrap.getItemDetails();