ANDROID笔记:Activity之间的传值

在主activty中调用

        Intent intent = new Intent(MyActivity.this, MyResultActivity.class);

        // 调用返回

        startActivityForResult(intent, 1);

并且重载下列方法：

@Override

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        super.onActivityResult(requestCode, resultCode, data);



        // String nameString = data.getStringExtra("name");

        // String sexString = data.getStringExtra("sex");

        // 获取Person对象

        Person person = (Person) data.getSerializableExtra("person");

        if (person != null) {

            String name = person.getName();

            String sexString = person.getSex();

            Toast.makeText(getApplicationContext(), name + "---" + sexString,

                    Toast.LENGTH_SHORT).show();

        }



    }

在调用的另一个actvity中调用下列方法就会返回

Intent intent = new Intent(MyResultActivity.this, MyActivity.class);

        // intent.putExtra("name", "eve");

        // intent.putExtra("sex", "man");

        // 返回对象

        Person person = new Person("eve", "man");

        intent.putExtra("person", person);

        // 返回数据

        setResult(1, intent);

        finish();

 使用Intent传输的对象必须实现Serializable接口！