Android 两个ListView联动，仿电影展示界面

                    Android 两个ListView联动，仿电影展示界面

需要导入的依赖包：compile 'com.squareup.picasso:picasso:2.5.2'
compile 'io.reactivex:rxjava:1.2.7'
compile 'io.reactivex:rxandroid:1.2.1'
compile 'com.squareup.retrofit2:retrofit:2.2.0'
compile 'com.squareup.retrofit2:converter-gson:2.2.0'
compile 'com.squareup.retrofit2:adapter-rxjava:2.2.0'xml布局：（布局里面是两个listview,方向是横向的）<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<ListView
android:id="@+id/left"
android:layout_width="88dp"
android:background="#eaebec"
android:layout_height="match_parent" />
<ListView
android:id="@+id/right"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>适配器：（既然是两个布局格式不同listview,就必须是两个适配器了，下面是左边listview的适配器，左边控制listview标题，右边控制展示）import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;

public class LeftAdapter extends BaseAdapter {

List<String> data;
LayoutInflater inflater;
private int selectItem=0;

public void setSelectItem(int selectItem) {
this.selectItem = selectItem;
notifyDataSetChanged();
}

public LeftAdapter(Context context) {
data=new ArrayList<>();
for (int i = 0; i < 10; i++) {
data.add("电影"+i);
}
inflater=LayoutInflater.from(context);
}

@Override
public int getCount() {
return data!=null?data.size():0;
}

@Override
public String getItem(int position) {
return data.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView=inflater.inflate(R.layout.left_item,parent,false);
holder=new ViewHolder(convertView);
convertView.setTag(holder);
}else {
holder= (ViewHolder) convertView.getTag();
}

holder.mText.setText(data.get(position));

if (selectItem == position) {
holder.mText.setTextColor(Color.BLUE);
holder.mIndicator.setVisibility(View.VISIBLE);
}else {
holder.mText.setTextColor(Color.BLACK);
holder.mIndicator.setVisibility(View.INVISIBLE);
}

return convertView;
}

public static class ViewHolder{

TextView mText;
View mIndicator;

public ViewHolder(View itemView) {
mText= (TextView) itemView.findViewById(R.id.left_text);
mIndicator=itemView.findViewById(R.id.left_indicator);
}
}

}listview右边适配器：import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
import java.util.List;

public class RightAdapter extends BaseAdapter {

List<ParaseData.DataBean> data;
LayoutInflater inflater;
Context context;

public RightAdapter(Context context, List<ParaseData.DataBean> data) {
this.context=context;
inflater = LayoutInflater.from(context);
if (data != null) {
this.data=data;
}else {
this.data=new ArrayList<>();
}
}
public void addRes(List<ParaseData.DataBean> data){
if (data != null) {
this.data.clear();
this.data.addAll(data);
notifyDataSetChanged();
}
}

@Override
public int getCount() {
return data.size();
}

@Override
public ParaseData.DataBean getItem(int position) {
return data.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.right_item, parent, false);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
} else {
holder= (ViewHolder) convertView.getTag();
}

holder.mTitle.setText(getItem(position).getTitle());
holder.mMsg.setText(getItem(position).getTitle());
Picasso.with(context).load(getItem(position).getImage()).into(holder.mImg);

return convertView;
}

public static class ViewHolder {
ImageView mImg;
TextView mTitle;
TextView mMsg;

public ViewHolder(View itemView) {
mImg = (ImageView) itemView.findViewById(R.id.right_img);
mTitle = (TextView) itemView.findViewById(R.id.right_text);
mMsg = (TextView) itemView.findViewById(R.id.right_msg);
}
}
}总实现代码：import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.ListView;

import retrofit2.Retrofit;
import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
import retrofit2.converter.gson.GsonConverterFactory;
import rx.Observable;
import rx.Subscriber;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;

public class MainActivity extends AppCompatActivity{
/**
* 右侧电影列表的接口
* http://app.vmoiver.com/apiv3/post/getPostInCate?cateid=0&p=1 */
private ListView mLeft;
private ListView mRight;
private RightAdapter rightAdapter;
private LeftAdapter adapter;

//记录滑动的ListView 滑动的位置
private int scrollPosition = -1;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
getData();
}

private void getData() {

Retrofit retrofit = new Retrofit.Builder()
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.baseUrl("http://app.vmoiver.com").build();
ApiService apiService = retrofit.create(ApiService.class);
Observable<ParaseData> apiServiceMovieList = apiService.getMovieList();
apiServiceMovieList.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Subscriber<ParaseData>() {
@Override
public void onCompleted() {

}

@Override
public void onError(Throwable e) {

}

@Override
public void onNext(ParaseData paraseData) {
rightAdapter.addRes(paraseData.getData());
}
});
}

private void initView() {
mLeft = (ListView) findViewById(R.id.left);
mRight = (ListView) findViewById(R.id.right);

adapter = new LeftAdapter(this);
mLeft.setAdapter(adapter);

rightAdapter = new RightAdapter(this, null);
mRight.setAdapter(rightAdapter);
mLeft.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
adapter.setSelectItem(position);

mRight.setSelection(position);
}
});
mRight.setOnScrollListener(new AbsListView.OnScrollListener() {

@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {

}

@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {

if (scrollPosition != firstVisibleItem) {
adapter.setSelectItem(firstVisibleItem);
mLeft.setSelectionFromTop(firstVisibleItem, 40);
scrollPosition = firstVisibleItem;
}
}
});
}
}还有就是加网络权限。