Activity之间传递数据

Activity1

Intent intent=  new Intent(MainActivity.this,SecondActivity.class);
    Bundle bundle= new  Bundle();
    bundle.putString("username","lizhch");
      
    intent.putExtra("busername", bundle);
    startActivityForResult(intent, 0);//启动之后要求接受回传的值

 

 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {//这个方法用来监听回传的数据
  // TODO Auto-generated method stub
  super.onActivityResult(requestCode, resultCode, data);
  data.getExtras().get("password"); -print xxx
   }

Activity2

String username = getIntent().getBundleExtra("busername").getString("username");
  Toast.makeText(SecondActivity.this, username, 1).show();

Intent intent = new Intent();
  intent.putExtra("password", "xxx");
 
  setResult(RESULT_OK, intent);   //设置回传的数据，注意 RESULT_OK
  finish();