Activity 通信之：传入与返回信息

转载请注明出处 谢谢！http://blog.csdn.net/metalseed/article/details/8197798

多Activity 需要建立多个java的class及相对应的xml

建立完成之后必须在manifest中注册

    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data){    switch(resultCode){    case activity2Return:    Bundle b = data.getExtras();    String returnMessage = b.getString("ac2");    }    }