android 不同activity之间传递数据

1> 不同activity之间传递数据:

     Intent intent=new Intent();

      intent.setClass(activity1.this,activity2.class);

      Bundle bundle=new Bundle();

       bundle.putString("name","username");

       bundle.putString("pwd","12345");

      intent.putExtras(bundle);

     StartActivity(this);

     activity1.this.finish();