接口传值、回传、修改Fragment 老王版本

A页面///

package com.example.mmaster.jiekoumyapplication.fragment;import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;import com.example.mmaster.jiekoumyapplication.MainActivity;
import com.example.mmaster.jiekoumyapplication.R;
import com.example.mmaster.jiekoumyapplication.adapter.MyAdapter;
import com.example.mmaster.jiekoumyapplication.bean.MyBean;import java.util.ArrayList;/**
 * A simple {@link Fragment} subclass.
 */
public class AFragment extends Fragment {private RecyclerView recy;public ArrayList<MyBean> myBeans;public MyAdapter myAdapter;private onlistener listener;

    //定义int类型的ipublic int i;public AFragment() {// Required empty public constructor
    }@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// Inflate the layout for this fragment
        View inflate = inflater.inflate(R.layout.fragment_a, container, false);initView(inflate);initData();initListener();return inflate;}private void initListener() {

//适配器调用监听myAdapter.setOnCliK(new MyAdapter.OnClik() {@Override
       public void OnCliklistener(int position) {//1、点击传值（信号弹）
           i=position;((MainActivity)getActivity()).vp.setCurrentItem(1);int img = myBeans.get(position).getImg();String name = myBeans.get(position).getName();String age = myBeans.get(position).getAge();MyBean myBean=new MyBean(img,name,age);listener.itemlistener(myBean);}});}private void initData() {myBeans = new ArrayList<>();for (int i = 0; i < 5; i++) {MyBean myBean = new MyBean(R.mipmap.ic_launcher, "兴哥", "男");myBeans.add(myBean);}

        //适配器调全局myAdapter = new MyAdapter(myBeans, getContext());recy.setAdapter(myAdapter);}private void initView(View inflate) {recy = (RecyclerView) inflate.findViewById(R.id.recy);

//布局管理器LinearLayoutManager manager = new LinearLayoutManager(getContext());recy.setLayoutManager(manager);}

    //接口回调public  interface onlistener{void  itemlistener(MyBean myBean);}public  void setonlistener(onlistener listener){this.listener=listener;}
}

///A页面的适配器——最下边写接口回调

package com.example.mmaster.jiekoumyapplication.adapter;import android.content.Context;
import android.media.Image;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;import com.example.mmaster.jiekoumyapplication.R;
import com.example.mmaster.jiekoumyapplication.bean.MyBean;
import com.squareup.picasso.Picasso;import org.w3c.dom.Text;import java.util.ArrayList;/**
 * Created by mMaster
 * on 2018/4/8.
 * at 北京
 */

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.Holder> {private ArrayList<MyBean> myBeans;private Context mc;private OnClik onClik;public MyAdapter(ArrayList<MyBean> myBeans, Context mc) {this.myBeans = myBeans;this.mc = mc;}@Override
    public MyAdapter.Holder onCreateViewHolder(ViewGroup parent, int viewType) {View inflate = LayoutInflater.from(mc).inflate(R.layout.item, parent, false);return new Holder(inflate);}@Override
    public void onBindViewHolder(MyAdapter.Holder holder, final int position) {holder.age.setText(myBeans.get(position).getAge());holder.name.setText(myBeans.get(position).getName());Picasso.with(mc).load(myBeans.get(position).getImg()).into(holder.img);holder.itemView.setOnClickListener(new View.OnClickListener() {@Override
            public void onClick(View v) {onClik.OnCliklistener(position);}});}@Override
    public int getItemCount() {return myBeans.size();}public class Holder extends RecyclerView.ViewHolder {private final ImageView img;private final TextView name;private final TextView age;public Holder(View itemView) {super(itemView);img = itemView.findViewById(R.id.img);name = itemView.findViewById(R.id.name);age = itemView.findViewById(R.id.age);}}
//接口public interface OnClik{void OnCliklistener (int position);}public void setOnCliK(OnClik onClik){this.onClik=onClik;}
}

B页面//

B页面XML：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    tools:context="com.example.mmaster.jiekoumyapplication.fragment.BFragment"><!-- TODO: Update blank fragment layout -->
    <ImageView
        android:id="@+id/img"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:background="@mipmap/ic_launcher"
        android:layout_gravity="center_horizontal" /><EditText
        android:id="@+id/name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:text="hh" /><EditText
        android:id="@+id/age"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:text="hh" /><Button
        android:id="@+id/qd"
        android:text="确定"
        android:layout_width="150dp"
        android:layout_height="wrap_content" />
</LinearLayout>

B页面//

package com.example.mmaster.jiekoumyapplication.fragment;import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;import com.example.mmaster.jiekoumyapplication.MainActivity;
import com.example.mmaster.jiekoumyapplication.R;
import com.example.mmaster.jiekoumyapplication.bean.MyBean;/**
 * A simple {@link Fragment} subclass.
 */
public class BFragment extends Fragment implements AFragment.onlistener {private ImageView img;private TextView name;private TextView age;private Button qd;public BFragment() {// Required empty public constructor
    }@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// Inflate the layout for this fragment
        View inflate = inflater.inflate(R.layout.fragment_b, container, false);initView(inflate);initData();return inflate;}private void initData() {//2、  B页面修改
          ((MainActivity)getActivity()).aFragment.setonlistener(this);//3、确定修改返回
                    qd.setOnClickListener(new View.OnClickListener() {@Override
                  public void onClick(View v) {((MainActivity)getActivity()).vp.setCurrentItem(0);((MainActivity)getActivity()).aFragment.myBeans.get(((MainActivity)getActivity()).aFragment.i).setName(name.getText().toString());((MainActivity)getActivity()).aFragment.myBeans.get(((MainActivity)getActivity()).aFragment.i).setAge(age.getText().toString());((MainActivity)getActivity()).aFragment.myAdapter.notifyDataSetChanged();}});}private void initView(View inflate) {img = (ImageView) inflate.findViewById(R.id.img);name = (TextView) inflate.findViewById(R.id.name);age = (TextView) inflate.findViewById(R.id.age);qd = inflate.findViewById(R.id.qd);}@Override
    // 2、自动调出来的
    public void itemlistener(MyBean myBean) {name.setText(myBean.getName());age.setText(myBean.getAge());}
}

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接口传值、回传、修改Fragment 老王版本

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