Android 使用 Intent 传递对象

Serializable 方式：

实例代码：

import java.io.Serializable;

/**
 * Created by toby on 18-1-10.
 */

public class SendPersonUseSerializable implements Serializable {

    private String name;
    private int age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }


    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

}

Parcelable 方式：

实例代码：

import android.os.Parcel;
import android.os.Parcelable;

/**
 * Created by toby on 18-1-10.
 */

public class SendPersonUseParcelable implements Parcelable {

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    private String name;

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    private int age;

    public static final Creator<SendPersonUseParcelable> CREATOR = new Creator<SendPersonUseParcelable>() {
        @Override
        public SendPersonUseParcelable createFromParcel(Parcel in) {
            SendPersonUseParcelable sendPersonUseParcelable = new SendPersonUseParcelable();
            sendPersonUseParcelable.name = in.readString();
            sendPersonUseParcelable.age = in.readInt();
            return sendPersonUseParcelable;
        }

        @Override
        public SendPersonUseParcelable[] newArray(int size) {
            return new SendPersonUseParcelable[size];
        }
    };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel parcel, int i) {
        parcel.writeString(name);
        parcel.writeInt(age);
    }
}

测试传递对象：

            case 3:
                SendPersonUseSerializable personUseSerializable = new SendPersonUseSerializable();
                personUseSerializable.setName("Toby");
                personUseSerializable.setAge(30);
                intent = new Intent(this, ReceivePersonActivity.class);
                intent.putExtra("person_serializable_data", personUseSerializable);
                break;

            case 4:
                SendPersonUseParcelable personUseParcelable = new SendPersonUseParcelable();
                personUseParcelable.setName("Tina");
                personUseParcelable.setAge(28);
                intent = new Intent(this, ReceivePersonActivity.class);
                intent.putExtra("person_parcelable_data", personUseParcelable);
                break;

测试接收对象：

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

import java.text.MessageFormat;

public class ReceivePersonActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_receive_person);

        TextView textView = findViewById(R.id.showPerson);

        SendPersonUseSerializable personUseSerializable = (SendPersonUseSerializable)
                getIntent().getSerializableExtra("person_serializable_data");

        if (null != personUseSerializable) {
            textView.setText(MessageFormat.format("Person name: {0}\nPerson age: {1}",
                    personUseSerializable.getName(), personUseSerializable.getAge()));
        }

        SendPersonUseParcelable personUseParcelable =
                getIntent().getParcelableExtra("person_parcelable_data");

        if (null != personUseParcelable) {
            textView.setText(MessageFormat.format("Person name: {0}\nPerson age: {1}",
                    personUseParcelable.getName(), personUseParcelable.getAge()));
        }
    }
}

本文参考自 《Android 第一行代码》