Activity之间传递List数据

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我是靠谱客的博主伶俐煎饼，这篇文章主要介绍Activity之间传递List数据，现在分享给大家，希望可以做个参考。

关于Activity之间传递List<T>,一直以来没有时间去尝试，关于各种说法层出不穷，

1.Activity里面存静态变量，直接类名点获取.

2.Application里面设置一个属性，公开方法取什么的。

今天我们来看看另一种传法：

1.先看效果：

我们需要传的list里面的对象Bean.java的代码：

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package com.example.intentlist;

import java.io.Serializable;

public class Bean implements Serializable {
	private int id;
	private String name;
	private int age;

	public Bean() {

	}

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

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	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;
	}

}

MainActivity.java的代码：

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package com.example.intentlist;

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

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends ActionBarActivity {
	List<Bean> lstBean;

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

lstBean = new ArrayList<Bean>();
		Bean bean = new Bean(1, "张三", 12);
		lstBean.add(bean);
		Bean bean1 = new Bean(2, "李四", 13);
		lstBean.add(bean1);
		Bean bean2 = new Bean(3, "王五", 14);
		lstBean.add(bean2);
		Bean bean3 = new Bean(4, "赵六", 15);
		lstBean.add(bean3);
		((Button) findViewById(R.id.btn_next)).setOnClickListener(new OnClickListener() {

@Override
			public void onClick(View arg0) {
				Intent intentPut = new Intent(MainActivity.this, IntentTestActivity.class);
				intentPut.putExtra("lstBean", (Serializable) lstBean);
				startActivity(intentPut);
			}
		});

}
}

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package com.example.intentlist;

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

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends ActionBarActivity {
	List<Bean> lstBean;

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

		lstBean = new ArrayList<Bean>();
		Bean bean = new Bean(1, "张三", 12);
		lstBean.add(bean);
		Bean bean1 = new Bean(2, "李四", 13);
		lstBean.add(bean1);
		Bean bean2 = new Bean(3, "王五", 14);
		lstBean.add(bean2);
		Bean bean3 = new Bean(4, "赵六", 15);
		lstBean.add(bean3);
		((Button) findViewById(R.id.btn_next)).setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View arg0) {
				Intent intentPut = new Intent(MainActivity.this, IntentTestActivity.class);
				intentPut.putExtra("lstBean", (Serializable) lstBean);
				startActivity(intentPut);
			}
		});

	}
}

接收list数据的界面IntentTestActivity.java的代码：

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package com.example.intentlist;

import java.util.List;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.widget.TextView;

public class IntentTestActivity extends ActionBarActivity {

	@SuppressWarnings("unchecked")
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_intent_test);
		Intent intentGet = getIntent();
		List<Bean> lstBean = (List<Bean>) intentGet.getSerializableExtra("lstBean");
		String result = "IntentTestActivity" + "n";
		for (Bean bean : lstBean) {
			result += bean.getId() + "---" + bean.getName() + "---" + bean.getAge() + "n";
		}

		((TextView) findViewById(R.id.tv_result)).setText(result);
	}
}