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POPassing custom object between Android activities in C#
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  1. POPassing custom object between Android activities in C#
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    copied!<p>I am creating an android app in VS2012 using Xamarin.Android. I am displaying a custom list in Main screen. I need to pass a custom object(with ID,String,String,String properties) from this Main activity to another when user clicks on list item.</p> <p>Can anyone please help me with some example?</p> <p>edit:</p> <p>I have already tried solution mention in <a href="https://stackoverflow.com/questions/8763810/monodroid-sharing-non-trivial-data-between-activities">other question</a></p> <p>but the problem is I am getting below exception:</p> <p>This is how I am <strong>extracting in second activity</strong></p> <pre><code>InsuranceReminderBO i = (InsuranceReminderBO)Intent.GetSerializableExtra("SelectedItemID"); </code></pre> <p><strong>i is null</strong></p> <p>and in <strong>first activity setting</strong> it like this:</p> <pre><code>Intent intent = new Intent(this, typeof(ReminderDetails)); intent.PutExtra("SelectedItemID", selectedInsurance); StartActivity(typeof(ReminderDetails)); </code></pre> <p>where <code>class InsuranceReminderBO</code> is defined as</p> <pre><code>public class InsuranceReminderBO : Java.Lang.Object, Java.IO.ISerializable </code></pre> <p>I have also tried using <code>IParcelable</code> but in that I got error <code>Creator is not defined in ICreator or Creator</code></p> <p>Following the implementation of Iparcelable on CustomObject</p> <pre><code>'public class InsuranceReminderBO : Java.Lang.Object, IParcelable { public InsuranceReminderBO() { } #region Objects and Properties private int id; private String strCompanyName; private String strPremiumAmount; private String stDueDate; public int ID { get { return this.id; } set { this.id = value; } } public String Company_Name { get { return this.strCompanyName; } set { this.strCompanyName = value; } } public String Premium_Amount { get { return this.strPremiumAmount; } set { this.strPremiumAmount = value; } } public String Due_Date { get { return this.stDueDate; } set { this.stDueDate = value; } } #endregion #region IParcelable implementation // The creator creates an instance of the specified object private static readonly GenericParcelableCreator&lt;InsuranceReminderBO&gt; _creator = new GenericParcelableCreator&lt;InsuranceReminderBO&gt;((parcel) =&gt; new InsuranceReminderBO(parcel)); [ExportField("CREATOR")] public static GenericParcelableCreator&lt;InsuranceReminderBO&gt; GetCreator() { return _creator; } // Create a new SelectListItem populated with the values in parcel private InsuranceReminderBO(Parcel parcel) { ID = parcel.ReadInt(); Company_Name = parcel.ReadString(); Premium_Amount = parcel.ReadString(); Due_Date = parcel.ReadString(); } public int DescribeContents() { return 0; } // Save this instance's values to the parcel public void WriteToParcel(Parcel dest, ParcelableWriteFlags flags) { dest.WriteInt(ID); dest.WriteString(Company_Name); dest.WriteString(Premium_Amount); dest.WriteString(Due_Date); } // Closest to the 'Java' way of implementing the creator /*public sealed class SelectListItemCreator : Java.Lang.Object, IParcelableCreator { public Java.Lang.Object CreateFromParcel(Parcel source) { return new SelectListItem(source); } public Java.Lang.Object[] NewArray(int size) { return new SelectListItem[size]; } }*/ #endregion } #region GenericParcelableCreator /// &lt;summary&gt; /// Generic Parcelable creator that can be used to create objects from parcels /// &lt;/summary&gt; public sealed class GenericParcelableCreator&lt;T&gt; : Java.Lang.Object, IParcelableCreator where T : Java.Lang.Object, new() { private readonly Func&lt;Parcel, T&gt; _createFunc; /// &lt;summary&gt; /// Initializes a new instance of the &lt;see cref="ParcelableDemo.GenericParcelableCreator`1"/&gt; class. /// &lt;/summary&gt; /// &lt;param name='createFromParcelFunc'&gt; /// Func that creates an instance of T, populated with the values from the parcel parameter /// &lt;/param&gt; public GenericParcelableCreator(Func&lt;Parcel, T&gt; createFromParcelFunc) { _createFunc = createFromParcelFunc; } #region IParcelableCreator Implementation public Java.Lang.Object CreateFromParcel(Parcel source) { return _createFunc(source); } public Java.Lang.Object[] NewArray(int size) { return new T[size]; } #endregion } #endregion' </code></pre> <p>I am putting object in intent as </p> <pre><code>InsuranceReminderBO selectedInsurance = listOfInsurance[e.Position]; Intent intent = new Intent(this, typeof(ReminderDetails)); intent.PutExtra("SelectedItem", selectedInsurance); </code></pre> <p>And reading in second activity as</p> <pre><code>InsuranceReminderBO i = (InsuranceReminderBO)Intent.GetParcelableExtra("SelectedItem"); </code></pre> <p>but getting i as null.</p>
 

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