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copied!<p>So to pass the <code>ArrayList<Double></code> from one activity to the other, you have to use the <code>Parcelable</code> interface.</p> <p>You have to create a class called MyDouble for example : </p> <pre><code>public class MyDouble implements Parcelable { Double al; public MyDouble(Parcel source){ al = source.readDouble(); } public MyDouble(Double val){ al = val; } @Override public int describeContents() { // TODO Auto-generated method stub return this.hashCode(); } @Override public void writeToParcel(Parcel dest, int flags) { // TODO Auto-generated method stub dest.writeDouble(al); } public Double getValueDouble(){ return this.al; } public static Parcelable.Creator<MyDouble> CREATOR = new Parcelable.Creator<MyDouble>() { @Override public MyDouble createFromParcel(Parcel source) { // TODO Auto-generated method stub return new MyDouble(source); } @Override public MyDouble[] newArray(int size) { // TODO Auto-generated method stub return new MyDouble[size]; } }; } </code></pre> <p>Instantiate an ArrayList of MyDouble and use :</p> <pre><code>Intent second = new Intent(this, Second.class); ArrayList<MyDouble>al = new ArrayList<MyDouble>(); MyDouble m1 = new MyDouble(2.0); MyDouble m2 = new MyDouble(4.0); al.add(m1); al.add(m2); second.putParcelableArrayListExtra("array_list_test", al); startActivity(second); </code></pre> <p>You retrieve your doubles values, in the other activity by doing : </p> <pre><code>ArrayList<MyDouble> p =b.getParcelableArrayList("array_list_test"); </code></pre> <p>I tested it on my machine and it works that way. Hope it helps.</p> <p>Some documentation : </p> <p><a href="http://developer.android.com/reference/android/os/Parcelable.html" rel="nofollow">http://developer.android.com/reference/android/os/Parcelable.html</a></p> <p><a href="http://prasanta-paul.blogspot.com/2010/06/android-parcelable-example.html" rel="nofollow">http://prasanta-paul.blogspot.com/2010/06/android-parcelable-example.html</a></p> <p><a href="http://blog.cluepusher.dk/2009/10/28/writing-parcelable-classes-for-android/" rel="nofollow">http://blog.cluepusher.dk/2009/10/28/writing-parcelable-classes-for-android/</a></p>

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