首先我们要做的是添加各种依赖:
先看我的build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.2"
defaultConfig {
applicationId "com.example.mvprecyclerviewretrofitrxjavademo"
minSdkVersion 15
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:26.+'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'
compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4'
compile 'com.squareup.okhttp3:okhttp:3.1.2'
compile 'com.squareup.retrofit2:adapter-rxjava:2.0.0-beta4'
compile 'io.reactivex:rxjava:1.1.0'
compile 'io.reactivex:rxandroid:1.1.0'
compile 'com.google.code.gson:gson:2.6.2'
compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'
compile 'com.facebook.fresco:fresco:0.11.0'
}
再然后我用的是MVP模式写的Recyclerview实现
Recyclerview在MainActivity中显示
我们运用Retrofit和Rxjava 要添加一个包:retrofit
retrofit里面有一个接口:RetroAPI
package com.example.mvprecyclerviewretrofitrxjavademo.retrofit;
import com.example.mvprecyclerviewretrofitrxjavademo.bean.RetroBean;
import okhttp3.OkHttpClient;
import retrofit2.Retrofit;
import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
import retrofit2.converter.gson.GsonConverterFactory;
import retrofit2.http.GET;
import rx.Observable;
/**
* 作者:author
* 说明:
*/
public interface RetroAPI {
@GET("v1/restserver/ting?method=baidu.ting.billboard.billList&type=1&size=10&offset=0")
Observable<RetroBean> getRetro();
OkHttpClient CLIENT=new OkHttpClient.Builder()
.addInterceptor(new LoggingInterceptor())
.build();
Retrofit RETROFIT=new Retrofit.Builder()
.baseUrl("http://tingapi.ting.baidu.com/")
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.client(CLIENT)
.build();
RetroAPI RETRO_API=RETROFIT.create(RetroAPI.class);
}
可以看出我们在API里面创建了Retrofit,以及ok的拦截器
那么我们给出的拦截器(网络拦截器)实例是:LoggingInterceptor
这个实例是不需要我们写的,但是没有加网络拦截器的话,就会请求不到地址(其他的接口可能没有此拦截器)
package com.example.mvprecyclerviewretrofitrxjavademo.retrofit;
import android.os.Build;
import java.io.IOException;
import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;
/**
* 网络拦截器
*/
public class LoggingInterceptor implements Interceptor {
private static final String UA = "User-Agent";
@Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request()
.newBuilder()
.addHeader(UA, makeUA())
.build();
return chain.proceed(request);
}
private String makeUA() {
String s = Build.BRAND + "/" + Build.MODEL + "/" + Build.VERSION.RELEASE;
return Build.BRAND + "/" + Build.MODEL + "/" + Build.VERSION.RELEASE;
}
}
MyApp: 初始化fresco 别忘了在清单文件里加入name
以及在清单文件里加入网络权限*******
package com.example.testzhoukaotablayoutretrofit;
import android.app.Application;
import com.facebook.drawee.backends.pipeline.Fresco;
/**
* 作者:author
* 时间 :
* 说明:
*/
public class MyApp extends Application {
@Override
public void onCreate() {
super.onCreate();
Fresco.initialize(this);
}
}
Model:
IshowModel
package com.example.mvprecyclerviewretrofitrxjavademo.model;
import com.example.mvprecyclerviewretrofitrxjavademo.bean.RetroBean;
import java.util.List;
/**
* 作者:author
* 说明:
*/
public interface IshowModel {
public void showData(Callback callback);
interface Callback{
void complate(List<RetroBean.SongListBean> listb);
}
}
ShowModel:
package com.example.mvprecyclerviewretrofitrxjavademo.model;
import com.example.mvprecyclerviewretrofitrxjavademo.bean.RetroBean;
import com.example.mvprecyclerviewretrofitrxjavademo.retrofit.RetroAPI;
import java.util.List;
import rx.Observer;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;
/**
* 作者:author
* 时间 :
* 说明:
*/
public class showModel implements IshowModel {
@Override
public void showData(final Callback callback) {
RetroAPI.RETRO_API.getRetro()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<RetroBean>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
}
@Override
public void onNext(RetroBean retroBean) {
List<RetroBean.SongListBean> list=retroBean.getSong_list();
callback.complate(list);
}
});
}
}
view:
package com.example.mvprecyclerviewretrofitrxjavademo.view;
import com.example.mvprecyclerviewretrofitrxjavademo.bean.RetroBean;
import java.util.List;
/**
* 作者:author
* 说明:
*/
public interface IshowView {
public void getData(List<RetroBean.SongListBean> listb);
}
presenter:
Ipresenter接口:
package com.example.testzhoukaotablayoutretrofit.presenter;
/**
* 作者:author
* 时间 :
* 说明:
*/
public interface Ipresenter <T>{
void attach(T view);
void detach();
}
Presenter类
package com.example.mvprecyclerviewretrofitrxjavademo.presenter;
import com.example.mvprecyclerviewretrofitrxjavademo.bean.RetroBean;
import com.example.mvprecyclerviewretrofitrxjavademo.model.IshowModel;
import com.example.mvprecyclerviewretrofitrxjavademo.model.showModel;
import com.example.mvprecyclerviewretrofitrxjavademo.view.IshowView;
import java.lang.ref.SoftReference;
import java.util.List;
/**
* 作者:author
* 说明:
*/
public class ShowPresenter implements Ipresenter<IshowView> {
IshowModel model;
IshowView view;
SoftReference<IshowView> srf;
public ShowPresenter( IshowView view){
this.view=view;
model=new showModel();
attach(view);
}
public void showData(){
model.showData(new IshowModel.Callback() {
@Override
public void complate(List<RetroBean.SongListBean> listb) {
srf.get().getData(listb);
}
});
}
@Override
public void attach(IshowView view) {
srf=new SoftReference<IshowView>(view);
}
@Override
public void detach() {
srf.clear();
}
}
Adapter:
package com.example.mvprecyclerviewretrofitrxjavademo.adapter;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.TextView;
import com.example.mvprecyclerviewretrofitrxjavademo.R;
import com.example.mvprecyclerviewretrofitrxjavademo.bean.RetroBean;
import com.facebook.drawee.backends.pipeline.Fresco;
import com.facebook.drawee.interfaces.DraweeController;
import com.facebook.drawee.view.SimpleDraweeView;
import java.util.HashMap;
import java.util.List;
/**
* 作者:author
* 说明:
*/
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.myViewHolder> {
Context context;
List<RetroBean.SongListBean> listb;
private boolean isShow = false;
private boolean isSelect = false;
private static HashMap<Integer, Boolean> isSelected;
public MyAdapter(Context context, List<RetroBean.SongListBean> listb,boolean isShow,boolean isSelect) {
this.context = context;
this.listb = listb;
isSelected = new HashMap<Integer, Boolean>();
this.isShow=isShow;
this.isSelect=isSelect;
}
@Override
public myViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view=View.inflate(context,R.layout.items,null);
myViewHolder myViewHolder = new myViewHolder(view);
return myViewHolder;
}
@Override
public void onBindViewHolder(final myViewHolder holder, int position) {
holder.tvs.setText(listb.get(position).getTitle());
DraweeController controller= Fresco.newDraweeControllerBuilder()
.setUri(listb.get(position).getPic_small())
.setAutoPlayAnimations(true)
.build();
holder.sdv.setController(controller);
if(isShow){
holder.checkboxnum.setVisibility(View.VISIBLE);
holder.checkboxnum.setChecked(isSelect);
}else{
holder.checkboxnum.setVisibility(View.GONE);
}
}
@Override
public int getItemCount() {
return listb==null?0:listb.size();
}
class myViewHolder extends RecyclerView.ViewHolder{
TextView tvs;
CheckBox checkboxnum;
SimpleDraweeView sdv;
public myViewHolder(View itemView) {
super(itemView);
tvs=itemView.findViewById(R.id.tvs);
checkboxnum=itemView.findViewById(R.id.checkboxnum);
sdv=itemView.findViewById(R.id.sdv);
}
}
}
MainActivity:
package com.example.mvprecyclerviewretrofitrxjavademo;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v7.app.AlertDialog;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.example.mvprecyclerviewretrofitrxjavademo.adapter.MyAdapter;
import com.example.mvprecyclerviewretrofitrxjavademo.bean.RetroBean;
import com.example.mvprecyclerviewretrofitrxjavademo.presenter.ShowPresenter;
import com.example.mvprecyclerviewretrofitrxjavademo.view.IshowView;
import java.util.List;
public class MainActivity extends BaseActivity<ShowPresenter> implements IshowView, View.OnClickListener {
private RecyclerView mRv;
ShowPresenter presenter;
MyAdapter myAdapter;
List<RetroBean.SongListBean> lists;
List<String> list;
boolean isshow = true;
CheckBox checkboxall;
private Button mBtback;
private TextView mBianji;
private RelativeLayout mLlhead;
private LinearLayout mLl;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
presenter.showData();
initView();
}
@Override
protected void createpresenter() {
presenter = new ShowPresenter(this);
}
private void initView() {
mRv = (RecyclerView) findViewById(R.id.rv);
LinearLayoutManager llm = new LinearLayoutManager(this);
mRv.setLayoutManager(llm);
checkboxall = (CheckBox) findViewById(R.id.checkboxall);
mBtback = (Button) findViewById(R.id.btback);
mBtback.setOnClickListener(this);
mBianji = (TextView) findViewById(R.id.bianji);
mLlhead = (RelativeLayout) findViewById(R.id.llhead);
mLl = (LinearLayout) findViewById(R.id.ll);
checkboxall.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean b) {
if(b){
mRv.setAdapter(new MyAdapter(MainActivity.this,lists,true,true));
}else{
mRv.setAdapter(new MyAdapter(MainActivity.this,lists,true,false));
}
}
});
mBianji.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(isshow){
mBianji.setText("完成");
mLl.setVisibility(View.VISIBLE);
mRv.setAdapter(new MyAdapter( MainActivity.this,lists, isshow,false));
isshow = false;
}else{
mBianji.setText("编辑");
mLl.setVisibility(View.GONE);
mRv.setAdapter(new MyAdapter( MainActivity.this,lists, isshow,false));
isshow = true;
}
}
});
}
@Override
public void getData(final List<RetroBean.SongListBean> listb) {
lists = listb;
myAdapter = new MyAdapter(MainActivity.this, lists, false, false);
mRv.setAdapter(myAdapter);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btback:
if(isshow){
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("是否要退出");
builder.setPositiveButton("是", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
finish();
}
});
builder.setNegativeButton("否", null);
builder.create().show();
}else{
mBianji.setText("编辑");
mLl.setVisibility(View.GONE);
mRv.setAdapter(new MyAdapter(MainActivity.this,lists,isshow,checkboxall.isChecked()));
isshow = true;
}
break;
default:
break;
}
}
}
Mvp解绑需要一个Base类来实现:
BaseActivity:
package com.example.mvprecyclerviewretrofitrxjavademo;
import android.app.Activity;
import android.os.Bundle;
import android.support.annotation.Nullable;
import com.example.mvprecyclerviewretrofitrxjavademo.presenter.Ipresenter;
/**
* 作者:author
* 说明:
*/
public abstract class BaseActivity<T extends Ipresenter> extends Activity{
T presenter;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
createpresenter();
}
protected abstract void createpresenter();
@Override
protected void onDestroy() {
super.onDestroy();
if(presenter!=null){
presenter.detach();
}
}
}
最后把布局show一下:
MainActivity的layout:
<?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="com.example.mvprecyclerviewretrofitrxjavademo.MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:id="@+id/llhead"
android:layout_height="wrap_content"
>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/btback"
android:text="back"/>
<TextView
android:id="@+id/bianji"
android:text="编辑"
android:layout_width="60dp"
android:layout_alignParentRight="true"
android:layout_height="wrap_content" />
</RelativeLayout>
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_below="@+id/llhead"
android:layout_height="match_parent"
android:layout_above="@+id/ll"
android:id="@+id/rv"></android.support.v7.widget.RecyclerView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone"
android:id="@+id/ll"
android:layout_alignParentBottom="true"
android:orientation="horizontal">
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/checkboxall"
android:textSize="20sp"
android:text="全选"/>
</LinearLayout>
</RelativeLayout>
items条目的布局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<CheckBox
android:id="@+id/checkboxnum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<com.facebook.drawee.view.SimpleDraweeView
android:layout_width="50dp"
android:layout_height="50dp"
android:id="@+id/sdv"/>
<TextView
android:id="@+id/tvs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="28sp" />
</LinearLayout>
</LinearLayout>
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