Fragment之间的传值 接口回调

//布局
<fragment    android:id="@+id/frag_left"    android:name="baidumaplocation.bawei.com.chuanzhirecycle.Fragment1"    android:layout_width="wrap_content"    android:layout_height="match_parent"></fragment> <fragment    android:id="@+id/grag_rigt"    android:layout_weight="1"    android:name="baidumaplocation.bawei.com.chuanzhirecycle.Fragment2"    android:layout_width="0dp"    android:layout_height="match_parent"></fragment>



 private OnTrans trans;
    
//定义一个借口    public interface  OnTrans{    void  trans(List<Bean.ResultBean.BrandsBean.ProductsBean> list);}

  //对外提供访问的方    public void setOnTransValues(OnTrans trans){        this.trans=trans;    }


//点击获得数据进行传值
itemView.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View v) {        List<Bean.ResultBean.BrandsBean.ProductsBean> products = brands.get(getLayoutPosition()).getProducts();        trans.trans(products);    }});//在fragment2中调用接口拿到数据进行适配
Fragment1 fragmentleft = (Fragment1) getFragmentManager().findFragmentById(R.id.frag_left);  fragmentleft.setOnTransValues(new Fragment1.OnTrans() {      @Override      public void trans(List<Bean.ResultBean.BrandsBean.ProductsBean> banlist) {          MyAdapter myAdapter=new MyAdapter(banlist);          fra_recy2.setAdapter(myAdapter);      }  });