Android实现xrecyclerview+MVP+okhttp一个小案例

MainActivity代码

package lanbo.myweektest.activity;

import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.view.View;
import android.widget.Toast;

import com.jcodecraeer.xrecyclerview.XRecyclerView;

import lanbo.myweektest.R;
import lanbo.myweektest.adapter.MyAdapter;
import lanbo.myweektest.bean.NetDataBean;
import lanbo.myweektest.presenter.MyXRVpresenter;
import lanbo.myweektest.view.IXrecyclerview;

public class MainActivity extends AppCompatActivity implements IXrecyclerview {
MyXRVpresenter presenter=new MyXRVpresenter(this,this);
XRecyclerView xrv;
int num=30;
int offset=1;
Handler handler=new Handler();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
xrv= (XRecyclerView) findViewById(R.id.xrv);
presenter.StartData("30","1");
View view=View.inflate(MainActivity.this,R.layout.head_layout,null);
xrv.addHeaderView(view);
}
@Override
public void ShowXrv(final NetDataBean bean) {
LinearLayoutManager manager=new LinearLayoutManager(MainActivity.this);
xrv.setLayoutManager(manager);
final MyAdapter adapter=new MyAdapter(MainActivity.this,bean);
xrv.setAdapter(adapter);
xrv.setLoadingListener(new XRecyclerView.LoadingListener() {
@Override
public void onRefresh() {
handler.postDelayed(new Runnable() {
@Override
public void run() {
offset++;
presenter.StartData(num+"",offset+"");

adapter.notifyDataSetChanged();
xrv.refreshComplete();
}
},2000);
}

@Override
public void onLoadMore() {
handler.postDelayed(new Runnable() {
@Override
public void run() {
num+=3;
presenter.StartData(num+"",offset+"");
adapter.notifyDataSetChanged();
xrv.loadMoreComplete();
}
},2000);
}
});
adapter.setOnItemClickListener(new MyAdapter.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
Toast.makeText(MainActivity.this,bean.getSong_list().get(position).getAuthor(),Toast.LENGTH_SHORT).show();
}
});

}
}

适配器代码

package lanbo.myweektest.adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;

import lanbo.myweektest.R;
import lanbo.myweektest.bean.NetDataBean;

/**
* Created by asus on 2017/11/9.
*/

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyHolder> implements View.OnClickListener {
Context context;
NetDataBean bean;
public MyAdapter(Context context, NetDataBean bean) {
this.context = context;
this.bean = bean;
}

@Override
public void onClick(View v) {
if (mOnItemClickListener != null) {
//注意这里使用getTag方法获取position
mOnItemClickListener.onItemClick(v,(int)v.getTag());
}
}

//模拟接口
public static interface OnItemClickListener {
void onItemClick(View view , int position);
}
private OnItemClickListener mOnItemClickListener = null;

@Override
public MyHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view=View.inflate(context,R.layout.item_layout,null);
MyHolder holder=new MyHolder(view);
view.setOnClickListener(this);
return holder;
}

@Override
public void onBindViewHolder(MyHolder holder, int position) {
holder.singlename.setText(bean.getSong_list().get(position).getAuthor());
holder.songname.setText(bean.getSong_list().get(position).getTitle());
Glide.with(context)
.load(bean.getSong_list().get(position).getPic_small())
.into(holder.iv);
holder.itemView.setTag(position);
}
public void setOnItemClickListener(OnItemClickListener listener) {
this.mOnItemClickListener = listener;
}
@Override
public int getItemCount() {
return bean.getSong_list()==null?0:bean.getSong_list().size();
}
class MyHolder extends RecyclerView.ViewHolder{
ImageView iv;
TextView singlename;
TextView songname;

public MyHolder(View itemView) {
super(itemView);
iv=itemView.findViewById(R.id.xrv_item_iv);
singlename=itemView.findViewById(R.id.xrv_item_singlename);
songname=itemView.findViewById(R.id.xrv_item_songname);
}
}
}
Model代码

package lanbo.myweektest.model;

import lanbo.myweektest.utils.OkHttp3Utils;
import okhttp3.Callback;

/**
* Created by asus on 2017/11/9.
*/

public class MyXRVDataModel  implements  IXRVDataModel{
@Override
public void getnetmusicdata(String num, String offset, Callback callback) {
OkHttp3Utils.doGet("http://tingapi.ting.baidu.com/v1/restserver/ting?method=baidu.ting.billboard.billList&type=1&size="+num+"&offset="+offset,callback);
}
}

Model接口代码
package lanbo.myweektest.model;

import okhttp3.Callback;

/**
* Created by asus on 2017/11/9.
*/

public interface IXRVDataModel {
public void getnetmusicdata(String num, String offset, Callback callback);

}


presenter代码
package lanbo.myweektest.presenter;

import android.content.Context;
import android.util.Log;

import com.google.gson.Gson;

import java.io.IOException;

import lanbo.myweektest.bean.NetDataBean;
import lanbo.myweektest.model.MyXRVDataModel;
import lanbo.myweektest.utils.OnUiCallback;
import lanbo.myweektest.view.IXrecyclerview;
import okhttp3.Call;

/**
* Created by asus on 2017/11/9.
*/

public class MyXRVpresenter {
IXrecyclerview view;
Context context;
MyXRVDataModel model;

public MyXRVpresenter(IXrecyclerview view, Context context) {
this.view = view;
this.context = context;
model=new MyXRVDataModel();
}
public void StartData(String num,String offset){
model.getnetmusicdata(num, offset, new OnUiCallback() {
@Override
public void onFailed(Call call, IOException e) {

}

@Override
public void onSuccess(String result) {
Log.i("**************", "ShowXrv: "+result.toString());
Gson gson=new Gson();
NetDataBean bean = gson.fromJson(result, NetDataBean.class);
view.ShowXrv(bean);
}
});
}

}


view代码

package lanbo.myweektest.view;

import lanbo.myweektest.bean.NetDataBean;

/**
* Created by asus on 2017/11/9.
*/

public interface IXrecyclerview {
public void ShowXrv(NetDataBean bean);
}

mainactivity布局代码
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="lanbo.myweektest.activity.MainActivity">

<com.jcodecraeer.xrecyclerview.XRecyclerView
android:id="@+id/xrv"
android:layout_width="match_parent"
android:layout_height="match_parent"></com.jcodecraeer.xrecyclerview.XRecyclerView>

</RelativeLayout>


hand_layout布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ImageView
android:layout_width="300dp"
android:layout_height="100dp"
androi
4000
d:src="@mipmap/ic_launcher"
/>
</RelativeLayout>


item布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="50dp">
<ImageView
android:id="@+id/xrv_item_iv"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@mipmap/ic_launcher_round"
/>
<LinearLayout
android:layout_toRightOf="@+id/xrv_item_iv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<TextView
android:id="@+id/xrv_item_songname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="adsadsadas"
/>
<TextView
android:id="@+id/xrv_item_singlename"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="adsadsadas"
/>
</LinearLayout>
</RelativeLayout>