android之Intent复杂数据的传递(ArrayList<Object>类型的数据)

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三、传递ArrayList<Object>

传递ArrayList<Object>的方法

1）首先在新建的项目工程里建立一个实现了Serializable接口的PersonInfo实体类，然后在其中添加若干属性并生成相应的set、get方法，具体代码如下：

package zjh.android.bean; import java.io.Serializable; @SuppressWarnings("serial")public class PersonInfo implements Serializable {private String name;private String address;private int age;public PersonInfo(){};public PersonInfo(String name,String address,int age){this.name = name;this.address = address;this.age = age;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}}

2）新建一个用来发送ArrayList<Object>类型数据的SendActivity类，具体实现如下：

package zjh.android.lx; import java.io.Serializable;import java.util.ArrayList; import zjh.android.bean.PersonInfo;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button; public class SendActivity extends Activity {private Button send;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);super.setContentView(R.layout.activity_send);this.send = (Button)super.findViewById(R.id.send);this.send.setOnClickListener(new OnClickListenerImpl());} private final class OnClickListenerImpl implements OnClickListener{ @Overridepublic void onClick(View v) {ArrayList<PersonInfo> list = new ArrayList<PersonInfo>();PersonInfo personInfo = new PersonInfo("张三","广州",22);list.add(personInfo);Intent intent = new Intent(SendActivity.this,ReceiveActivity.class);Bundle bundle = new Bundle();bundle.putSerializable("personInfo", (Serializable)list);intent.putExtras(bundle);SendActivity.this.startActivity(intent);}}}

3）建立一个用来接收ArrayList<Object>类型数据的ReceiveActivity类，代码如下：

package zjh.android.lx; import java.util.ArrayList; import zjh.android.bean.PersonInfo;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.widget.TextView; public class ReceiveActivity extends Activity {private TextView msg; @SuppressWarnings("unchecked")@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);super.setContentView(R.layout.receive);this.msg = (TextView) super.findViewById(R.id.msg);Intent intent = super.getIntent();ArrayList<PersonInfo> list = (ArrayList<PersonInfo>) intent.getSerializableExtra("personInfo");this.msg.setText("name=" + list.get(0).getName() + "\n" + "address="+ list.get(0).getAddress() + "\n" + "age="+ list.get(0).getAge());} }

4）在AndroidManifest.xml文件中添加如下activity

<activity android:name="zjh.android.lx.ReceiveActivity"/>

此时，通过Intent传递ArrayList<Object>类型的数据就实现了。

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