安卓中常用的newInstance传值

案例:Activity传值到Fragment中
Activity发送数据

fragments.add(OneClassFragment.newInstance(mGradeList.get(i).getGradeid()));

Fragment接收数据

public static OneClassFragment newInstance(int gradeid) {
      OneClassFragment oneClassFragment = new OneClassFragment();
      Bundle args = new Bundle();
      args.putInt("gradeid", gradeid);
      oneClassFragment.setArguments(args);
      return oneClassFragment;
  }

 gradeid = getArguments().getInt("gradeid");

结束,希望对大家有所帮助