Intent传递数据

1、单个实体类：

Intent intent = new Intent();
intent.setClass(Login.this, MainActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable("user", user);
intent.putExtras(bundle);
this.startActivity(intent);

接收端

Intent intent = this.getIntent(); 
user=(User)intent.getSerializableExtra("user");

2、List

Intent.putExtras(key, (Serializable)list)  

接收

(List<YourObject>)getIntent().getSerializable(key)