标签:作用 his pos cti tac ack putextra this puts
Activity跳转与传值。主要是通过Intent类。Intent的作用是激活组件和附带数据。
一、Activity跳转
方法一
Intent intent = new Intent(A.this, B.class);
startActivity(intent)
方法二
Intent intent = new Intent();
intent.setClass(A.this, B.class);
startActivity(intent);
实现从A跳转到B(A、B均继承自Activity)
二、传递数据
Activity A 传递数据
方法一
Intent intent = new Intent();
intent.setClass(A.this, B.class);
intent.putExtra("name", "xy");
intent.putExtra("age", 22);
startActivity(intent);
方法二
Intent intent = new Intent(A.this, B.class);
Bundle bundle = new Bundle();
bundle.putString("name", "xy");
bundle.putInt("age", 22);
intent.putExtras(bundle);
startActivity(intent);
Activity B 接收数据
// 获取參数1
Intent intent = this.getIntent();
String name = intent.getStringExtra("name");
int age = intent.getIntExtra("age", 22); // 缺省值为22
// 获取參数2
Bundle bundle = intent.getExtras();
String name2 = bundle.getString("name");
int age2 = bundle.getInt("age", 22);
两种获取參数方式均可,并非和传參1,2方法一一相应
标签:作用 his pos cti tac ack putextra this puts
原文地址:http://www.cnblogs.com/yutingliuyl/p/6900207.html