Android - Passing an Object To Another Activity

Question

I am utilizing the follow class, which I have as an object: http://pastebin.com/rKmtbDgF

And I am trying to pass it across using:

Intent booklist = new Intent(getBaseContext(), BookList.class);

Bundle bundle = new Bundle();
bundle.putParcelable("imageManager", (Parcelable) im);                
booklist.putExtras(bundle);
booklist.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(booklist);

And I am trying to receive it using:

ImageManager im  = (ImageManager) getIntent().getExtras().getParcelable("imageManager");

I am getting the following error:

java.lang.ClassCastException: com.example.example.ImageManager

i feel this is the problem with passing image manager, can you able to post your full log cat — Sree, Apr 11 '14 at 05:06
C'mon @RiteshGune the code is in the pastbin url... look before commenting. — Spons, Apr 11 '14 at 05:13
that link seems to be broken, kindly check the link before posting;) — Ritesh Gune, Apr 11 '14 at 05:14
@user1290717 please accept an anwser if it works. If not let us know.. so that we can eleborate more. — Spons, May 07 '14 at 12:56

score 0 · Answer 1 · edited May 23 '17 at 12:13

Try the following post.

How can I make my custom objects Parcelable?

The problem is that the ImageManager is not a parable Object. So that's giving the cast error. If the imageManager is yours you should make the class implement Pracabale like the url above sais.

EDIT:

Above should be the right way of doing Parceables, But in your case i really would say you shouldn't pass the ImageManager between different activities. Because the context that your using in the ImageManager class will be disposed.. And you'll certainly get an error.

So why don't you make a new instance of the class instead and only pass the Bitmap in to it (After transferring the bitmap and other not context related information with the bundle off course.)

score 0 · Answer 2 · answered Apr 11 '14 at 05:09

0

go here, and paste your class structure.it will create parcelable class for you and then you can easily pass your object around activities.

answered Apr 11 '14 at 05:09

Waqar Ahmed

5,005
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score 0 · Accepted Answer · answered Apr 11 '14 at 05:42

Easiest Way to do this is to implement Serializeable ..

import java.io.Serializable;

@SuppressWarnings("serial") 
public class Student implements Serializable {

public Student(int age, String name){
    this.age = age;
    this.name = name;
}

public int getAge() {
    return age;
}
public void setAge(int age) {
    this.age = age;
}
public String getName() {
    return this.name;
}
public void setName(String name) {
    this.name = name;
}

private int age;
private String name;

}

Sending object from Activity A to Activity B

Student student = new Student (18,"Zar E Ahmer");
Intent i = new Intent(this, B.class);
i.putExtra("studentObject", student);
startActivity(i);

Getting Object in Activity B.

Intent i = getIntent();
Student student = (Student)i.getSerializableExtra("studentObject");

Android - Passing an Object To Another Activity

3 Answers3

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