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如何在 Android 上将一个对象从一个活动传递到另一个活动

I am trying to work on sending an object of my customer class from one Activity and display it in another Activity.

The code for the customer class:

public class Customer {

    private String firstName, lastName, Address;
    int Age;

    public Customer(String fname, String lname, int age, String address) {

        firstName = fname;
        lastName = lname;
        Age = age;
        Address = address;
    }

    public String printValues() {

        String data = null;

        data = "First Name :" + firstName + " Last Name :" + lastName
        + " Age : " + Age + " Address : " + Address;

        return data;
    }
}

I want to send its object from one Activity to another and then display the data on the other Activity.

How can I achieve that?

转载于:https://stackoverflow.com/questions/2736389/how-to-pass-an-object-from-one-activity-to-another-on-android

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    One option could be letting your custom class implement the Serializable interface and then you can pass object instances in the intent extra using the putExtra(Serializable..) variant of the Intent#putExtra() method.

    Pseudocode:

    //To pass:
    intent.putExtra("MyClass", obj);
    
    // To retrieve object in second Activity
    getIntent().getSerializableExtra("MyClass");
    

    Note: Make sure each nested class of your main custom class has implemented Serializable interface to avoid any serialization exceptions. For example:

    class MainClass implements Serializable {
    
        public MainClass() {}
    
        public static class ChildClass implements Serializable {
    
            public ChildClass() {}
        }
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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