快速需求的简短回答

1. 将类实现为可序列化的。

如果你有任何内部类，不要忘记将它们实现为Serializable !!

public class SportsData implements  Serializable
public class Sport implements  Serializable

List<Sport> clickedObj;

2. 将你的对象放入Intent中

 Intent intent = new Intent(SportsAct.this, SportSubAct.class);
            intent.putExtra("sport", clickedObj);
            startActivity(intent);

3.并在另一个活动类中接收您的对象

Intent intent = getIntent();
    Sport cust = (Sport) intent.getSerializableExtra("sport");

POJO类“Post”(注意它是实现Serializable的)

package com.example.booklib;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import android.graphics.Bitmap;

public class Post implements Serializable{
    public String message;
    public String bitmap;
    List<Comment> commentList = new ArrayList<Comment>();
    public String getMessage() {
        return message;
    }
    public void setMessage(String message) {
        this.message = message;
    }
    public String getBitmap() {
        return bitmap;
    }
    public void setBitmap(String bitmap) {
        this.bitmap = bitmap;
    }
    public List<Comment> getCommentList() {
        return commentList;
    }
    public void setCommentList(List<Comment> commentList) {
        this.commentList = commentList;
    }

}

POJO类“Comment”(由于是Post类的成员，它也需要实现Serializable)

    package com.example.booklib;

    import java.io.Serializable;

    public class Comment implements Serializable{
        public String message;
        public String fromName;
        public String getMessage() {
            return message;
        }
        public void setMessage(String message) {
            this.message = message;
        }
        public String getFromName() {
            return fromName;
        }
        public void setFromName(String fromName) {
            this.fromName = fromName;
        }

    }

然后在您的活动类中，您可以执行以下操作将对象传递给另一个活动。

ListView listview = (ListView) findViewById(R.id.post_list);
listview.setOnItemClickListener(new OnItemClickListener(){
        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {
            Post item = (Post)parent.getItemAtPosition(position);
            Intent intent = new Intent(MainActivity.this,CommentsActivity.class);
            intent.putExtra("post",item);
            startActivity(intent);

        }
    });

在您的接收类“CommentsActivity”中，您可以获得如下数据

Post post =(Post)getIntent().getSerializableExtra("post");

最简单的方法是在item是字符串的情况下使用以下代码:

intent.putextra("selected_item",item)

接收:

String name = data.getStringExtra("selected_item");

创建Android应用程序

文件>>新建>> Android应用程序

输入项目名称:android-pass-object-to-activity

Pakcage: com.hmkcode.android

保持其他默认选择，点击下一步直到完成

在开始创建应用程序之前，我们需要创建POJO类“Person”，我们将使用它将对象从一个活动发送到另一个活动。注意，该类正在实现Serializable接口。

将位于

package com.hmkcode.android;
import java.io.Serializable;

public class Person implements Serializable{

    private static final long serialVersionUID = 1L;

    private String name;
    private int age;

        // getters & setters....

    @Override
    public String toString() {
        return "Person [name=" + name + ", age=" + age + "]";
    }   
}

两个活动的两种布局

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">
    <TextView
        android:id="@+id/tvName"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="center_horizontal"
        android:text="Name" />

    <EditText
        android:id="@+id/etName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        android:ems="10" >
        <requestFocus />
    </EditText>
</LinearLayout>

<LinearLayout
     android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">
<TextView
    android:id="@+id/tvAge"
    android:layout_width="100dp"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:gravity="center_horizontal"
    android:text="Age" />
<EditText
    android:id="@+id/etAge"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:ems="10" />
</LinearLayout>

<Button
    android:id="@+id/btnPassObject"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal"
    android:text="Pass Object to Another Activity" />

</LinearLayout>

activity_another.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
 >

<TextView
    android:id="@+id/tvPerson"
    android:layout_height="wrap_content"
    android:layout_width="fill_parent"
    android:layout_gravity="center"
    android:gravity="center_horizontal"
 />

</LinearLayout>

两个活动类别

1)ActivityMain.java

package com.hmkcode.android;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity implements OnClickListener {

Button btnPassObject;
EditText etName, etAge;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    btnPassObject = (Button) findViewById(R.id.btnPassObject);
    etName = (EditText) findViewById(R.id.etName);
    etAge = (EditText) findViewById(R.id.etAge);

    btnPassObject.setOnClickListener(this);
}

@Override
public void onClick(View view) {

    // 1. create an intent pass class name or intnet action name 
    Intent intent = new Intent("com.hmkcode.android.ANOTHER_ACTIVITY");

    // 2. create person object
    Person person = new Person();
    person.setName(etName.getText().toString());
    person.setAge(Integer.parseInt(etAge.getText().toString()));

    // 3. put person in intent data
    intent.putExtra("person", person);

    // 4. start the activity
    startActivity(intent);
}

}

2)AnotherActivity.java

package com.hmkcode.android;

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

public class AnotherActivity extends Activity {

TextView tvPerson;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_another);

    // 1. get passed intent 
    Intent intent = getIntent();

    // 2. get person object from intent
    Person person = (Person) intent.getSerializableExtra("person");

    // 3. get reference to person textView 
    tvPerson = (TextView) findViewById(R.id.tvPerson);

    // 4. display name & age on textView 
    tvPerson.setText(person.toString());

}
}

我知道有点晚了，但如果你只想对一些对象这么做为什么不直接在目标活动中将对象声明为公共静态对象呢?

public static myObject = new myObject();

从你的源活动中给它一个值?

destinationActivity.myObject = this.myObject;

在您的源活动中，您可以像使用任何全局对象一样使用它。 对于大量的对象，这可能会导致一些内存问题，但对于少数对象，我认为这是最好的方法

Start another activity from this activity pass parameters via Bundle Object

Intent intent = new Intent(this, YourActivity.class);
Intent.putExtra(AppConstants.EXTRAS.MODEL, cModel);
startActivity(intent);
Retrieve on another activity (YourActivity)

ContentResultData cModel = getIntent().getParcelableExtra(AppConstants.EXTRAS.MODEL);