I'm having trouble passing an object via an Intent
. I keep getting a null pointer error. here it is:
In my ListActivity:
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
Intent intent = new Intent(MyListActivity.this, DetailsActivity.class);
intent.putExtra("this_item", my_array.get(position));
startActivity(intent);
}
In the onCreate() of the DetailsActivity class:
thisItem = (MyObject) getIntent().getExtras().getParcelable("this_item");
System.err.println(thisItem.getDescription()); //<--Null pointer error!
The MyObject
class does implement Parcelable
. Why can't I pass this object over? I'm confused. Thanks for any help.
EDIT: Here is that class:
public class MyObject implements Comparable<MyObject>, Parcelable {
private Date date;
private MyType my_type;
private String description;
private int flags;
public MyObject(Date date, MyType type, String desc) {
this.date = date;
this.my_type = type;
this.description = desc;
}
public Date getDate() {return date;}
public MyType getMyType() {return my_type;}
public String getDescription() {return description;}
public int compareTo(MyObject another) {
if (getDate() == null || another.getDate() == null) {return 0;}
return getDate().compareTo(another.getDate());
}
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(flags);
}
public static final Parcelable.Creator<MyObject> CREATOR = new Parcelable.Creator<MyObject>() {
public MyObject createFromParcel(Parcel in) {
return new MyObject(in);
}
public MyObject[] newArray(int size) {
return new MyObject[size];
}
};
private MyObject (Parcel in) {
flags = in.readInt();
}
}