Passing data through intent using Serializable

_x000D_ _x000D_ I've implemented my class with serializable, but it still didn't work. This is my class: package com.ursabyte.thumbnail; import java.io.Serializable; import android.graphics.Bitmap; public class Thumbnail implements Serializable { private static final long serialVersionUID = 1L; private String label = ""; private Bitmap bitmap; public Thumbnail(String label, Bitmap bitmap) { this.label = label; this.bitmap = bitmap; } public void set_label(String label) { this.label = label; } public String get_label() { return this.label; } public void set_bitmap(Bitmap bitmap) { this.bitmap = bitmap; } public Bitmap get_bitmap(){ return this.bitmap; } // @Override // public int compareTo(Thumbnail other) { // if(this.label != null) // return this.label.compareTo(other.get_label()); // else // throw new IllegalArgumentException(); // } } This is what I want to be passing. List all_thumbs = new ArrayList(); all_thumbs.add(new Thumbnail(string, bitmap)); Intent intent = new Intent(getApplicationContext(), SomeClass.class); intent.putExtra("value", all_thumbs); But still it didn't work. I don't know how to use Parcelable, so I use this instead.