本文介绍了如何在Android应用中实现自定义梯形布局，并在点击后无上限地动态增加视图。同时，文章详细讲解了如何通过MVP架构进行数据多条目的展示，涉及布局设计、接口定义、数据库操作以及关键的适配器NewsAdapter的使用。
先上依赖
implementation 'com.github.bumptech.glide:glide:4.7.1' annotationProcessor 'com.github.bumptech.glide:compiler:4.7.1' implementation 'com.jcodecraeer:xrecyclerview:1.5.9' implementation 'com.squareup.okhttp3:logging-interceptor:3.10.0' implementation 'com.squareup.okhttp3:okhttp:3.10.0' implementation 'com.google.code.gson:gson:2.8.5'
与当前版本不兼容可将下方代码CV到gradle的最下方（注意是最下方，最下方，最下方重要的事情说三遍）
configurations.all {
resolutionStrategy.eachDependency { DependencyResolveDetails details ->
def requested = details.requested
if (requested.group == 'com.android.support') {
if (!requested.name.startsWith("multidex")) {
details.useVersion '27.1.1'
}
}
}
}依赖导了，权限也不能忘了
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>好了进入正题
既然是做自定义view自然要先敲了，点击某控件增加一个view呈梯形增加，增加满屏幕后，回到左侧继续增加(无上限)
public class MyViewGroup extends ViewGroup { public MyViewGroup(Context context) { super(context); } public MyViewGroup(Context context, AttributeSet attrs) { super(context, attrs); } public MyViewGroup(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } /** * 把此view的最终的宽度和高度定下来 */ @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); int totalHeight = 0;//此控件的高度 int totalWidth = 0;//此控件的宽度 //得到子view数量 int child = getChildCount(); if (child > 0) { for (int i = 0; i < child; i++) {//遍历子控件 View view = getChildAt(i);//得到此容器所有的子view totalHeight += view.getMeasuredHeight(); measureChild(view,widthMeasureSpec,heightMeasureSpec); } } totalWidth = AppUtil.screenWidth(getContext()); System.out.println("width:"+totalWidth); System.out.println("height:"+totalHeight); //设置宽度和高度给当前view，通过下面这个方法 setMeasuredDimension(totalWidth, totalHeight); } @Override protected void onLayout(boolean bo, int left, int top, int right, int bottom) { int l = 0; int t = 0; int r = 0; int b = 0; int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { View view = getChildAt(i);//得到每一个view的对象 view.layout(l, t, l + view.getMeasuredWidth(), t + view.getMeasuredHeight()); l += view.getMeasuredWidth(); System.out.println("llll:"+l); t += view.getMeasuredHeight(); if (l+view.getMeasuredWidth()>AppUtil.screenWidth(getContext())){ l = 0; } if ((i+1)%3==0) { view.setBackgroundColor(Color.GREEN); }else if ((i+1)%3==1){ view.setBackgroundColor(Color.BLUE); }else if ((i+1)%3==2){ view.setBackgroundColor(Color.RED); } //点击事件 final int finalI = i; view.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { TextView textView = (TextView) view; Intent intent = new Intent(getContext(), MainActivity.class); intent.putExtra("id",textView.getText().toString()); getContext().startActivity(intent); } }); view.setOnLongClickListener(new OnLongClickListener() { @Override public boolean onLongClick(View view) { removeView(view); return true; } }); } } }
自定义view页的布局 activity_threecolor
<?xml version="1.0" encoding="utf-8"?> <LinearLayout 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" android:orientation="vertical"> <LinearLayout android:gravity="center" android:layout_width="match_parent" android:layout_height="56dp"> <TextView android:text="三色梯" android:layout_weight="8" android:layout_width="0dp" android:gravity="center" android:layout_height="match_parent" /> <TextView android:onClick="add" android:layout_weight="1" android:layout_width="0dp" android:text="加" android:gravity="center" android:layout_height="match_parent" /> </LinearLayout> <ScrollView android:layout_width="match_parent" android:layout_height="wrap_content"> <com.example.kson.monthdemo.widget.MyViewGroup android:id="@+id/threecolorview" android:layout_width="match_parent" android:layout_height="wrap_content"> </com.example.kson.monthdemo.widget.MyViewGroup> </ScrollView> </LinearLayout>
对应的ThreeColorActivity
public class ThreeColorActivity extends AppCompatActivity { private MyViewGroup myViewGroup; private int count = 0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_threecolor); myViewGroup = findViewById(R.id.threecolorview); } /** * 添加view * @param view */ public void add(View view) { TextView textView = new TextView(this); count++; int width = AppUtil.screenWidth(this); int height = AppUtil.screenHeight(this); textView = new TextView(this); textView.setText(count+""); textView.setTextSize(25); textView.setGravity(Gravity.CENTER); textView.setTextColor(getResources().getColor(R.color.white)); textView.setBackgroundColor(getResources().getColor(R.color.colorAccent)); ObjectAnimator translationX = ObjectAnimator.ofFloat(textView, "translationX", (width - width / 3), 0); ObjectAnimator alpha = ObjectAnimator.ofFloat(textView, "alpha", 0f,1f); alpha.setDuration(5000); alpha.start(); translationX.setDuration(3000); translationX.start(); myViewGroup.addView(textView); ViewGroup.LayoutParams layoutParams = textView.getLayoutParams(); layoutParams.height = height/15; layoutParams.width = width/3; textView.setLayoutParams(layoutParams); } }
接下来就是MVP进行数据多条目展示了
先来个布局 activity_main
<?xml version="1.0" encoding="utf-8"?> <LinearLayout 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=".MainActivity"> <com.jcodecraeer.xrecyclerview.XRecyclerView android:id="@+id/rv" android:layout_width="match_parent" android:layout_height="wrap_content"/> </LinearLayout>
对应的MainActivity
public class MainActivity extends AppCompatActivity implements INews { private XRecyclerView rv; private NewsPresenter presenter; private int page = 5010; private List<News.Data> data; private boolean isRefresh = true;//判断是下啦刷新还是上啦加载 private NewsAdapter newsAdapter; private DbHelper dbHelper; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initData(); } private void initData() { if (getIntent().getExtras() != null) { page = 5010 + Integer.parseInt(getIntent().getExtras().getString("id")); } dbHelper = new DbHelper(this); presenter = new NewsPresenter(this); data = new ArrayList<>(); request(); } public void request() { if (NetWorkUtil.hasWifiConnection(this) || NetWorkUtil.hasGPRSConnection(this)) { Map<String, String> p = new HashMap<>(); p.put("type", page + ""); presenter.getData(Constants.GET_URL, p); } else { Toast.makeText(this, "网络不通畅，请稍后再试！", Toast.LENGTH_SHORT).show(); String json = null; // //获取数据库对象，可读 SQLiteDatabase db = dbHelper.getReadableDatabase(); //获取数据库的游标 Cursor cursor = db.rawQuery("select * from news", null); while (cursor.moveToNext()){ json = cursor.getString(cursor.getColumnIndex("json")); } //本地列表刷新 fillLocalData(json); } } /** * 本地列表刷新 * @param json */ private void fillLocalData(String json) { News news = new Gson().fromJson(json,News.class); newsAdapter = new NewsAdapter(news.data, this,news); rv.setAdapter(newsAdapter); } private void initView() { rv = findViewById(R.id.rv); //设置局部刷新动画 rv.setItemAnimator(new DefaultItemAnimator()); rv.setPullRefreshEnabled(true);//刷新配置 rv.setLoadingMoreEnabled(true);//上拉配置 rv.setLayoutManager(new LinearLayoutManager(this)); rv.setLoadingListener(new XRecyclerView.LoadingListener() { @Override public void onRefresh() { // rv.refreshComplete(); isRefresh = true; //下拉刷新 page = 5010; request(); } @Override public void onLoadMore() { isRefresh = false; page++; request(); // rv.loadMoreComplete(); } }); } @Override public void success(News news) { //转换json串 String json = new Gson().toJson(news); System.out.println("size:" + news.data.size()); data = news.data; if (isRefresh) { newsAdapter = new NewsAdapter(data, this,news); rv.setAdapter(newsAdapter); rv.refreshComplete(); //保存json串数据 SQLiteDatabase db = dbHelper.getWritableDatabase(); ContentValues contentValues = new ContentValues(); contentValues.put("json", json); db.insert(DbHelper.NEWS_TABLE_NAME, null, contentValues); } else { if (newsAdapter != null) { //上啦加载更多，刷新 newsAdapter.loadMore(news.data); } rv.loadMoreComplete(); } } @Override protected void onDestroy() { super.onDestroy(); presenter.detach(); } }
View层的接口 INews
public interface INews { void success(News news); }
util包下的三个类
AppUtil
public class AppUtil { /** * * @param context * @return 屏幕宽度 * @return 屏幕高度 */ public static int screenWidth(Context context){ DisplayMetrics metrics = context.getResources().getDisplayMetrics(); return metrics.widthPixels; } public static int screenHeight(Context context) { DisplayMetrics metrics = context.getResources().getDisplayMetrics(); return metrics.heightPixels; } }
NetWorkUtil
public class NetWorkUtil { /** * * @return 是否有活动的网络连接 */ public final static boolean hasNetWorkConnection(Context context){ //获取连接活动管理器 final ConnectivityManager connectivityManager= (ConnectivityManager) context. getSystemService(Context.CONNECTIVITY_SERVICE); //获取链接网络信息 final NetworkInfo networkInfo=connectivityManager.getActiveNetworkInfo(); return (networkInfo!= null && networkInfo.isAvailable()); } /** * @return 返回boolean ,是否为wifi网络 * */ public final static boolean hasWifiConnection(Context context) { final ConnectivityManager connectivityManager= (ConnectivityManager) context. getSystemService(Context.CONNECTIVITY_SERVICE); final NetworkInfo networkInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI); //是否有网络并且已经连接 return (networkInfo!=null&& networkInfo.isConnectedOrConnecting()); } /** * @return 返回boolean,判断网络是否可用,是否为移动网络 * */ public final static boolean hasGPRSConnection(Context context){ //获取活动连接管理器 final ConnectivityManager connectivityManager= (ConnectivityManager) context. getSystemService(Context.CONNECTIVITY_SERVICE); final NetworkInfo networkInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE); return (networkInfo!=null && networkInfo.isAvailable()); } /** * @return 判断网络是否可用，并返回网络类型，ConnectivityManager.TYPE_WIFI，ConnectivityManager.TYPE_MOBILE，不可用返回-1 */ public static final int getNetWorkConnectionType(Context context){ final ConnectivityManager connectivityManager=(ConnectivityManager) context. getSystemService(Context.CONNECTIVITY_SERVICE); final NetworkInfo wifiNetworkInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI); final NetworkInfo mobileNetworkInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE); if(wifiNetworkInfo!=null &&wifiNetworkInfo.isAvailable()) { return ConnectivityManager.TYPE_WIFI; } else if(mobileNetworkInfo!=null &&mobileNetworkInfo.isAvailable()) { return ConnectivityManager.TYPE_MOBILE; } else { return -1; } } }
OkhttpUtils
public class OkhttpUtils { private static OkhttpUtils okhttpUtils; private OkHttpClient okHttpClient; private Handler handler; private OkhttpUtils() { okHttpClient = new OkHttpClient.Builder() .addInterceptor(new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY)) .build(); handler = new Handler(); } public static OkhttpUtils getInstance() { if (okhttpUtils == null) { okhttpUtils = new OkhttpUtils(); } return okhttpUtils; } /** * get方式 */ public void getData(String url, final ICallback callback){ final Request request = new Request.Builder() .url(url).build(); okHttpClient.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { if (callback!=null){ handler.post(new Runnable() { @Override public void run() { callback.fail("请求失败"); } }); } } @Override public void onResponse(Call call, Response response) throws IOException { if (callback!=null){ if (response.isSuccessful()&&response.code()==200){ final String result = response.body().string(); handler.post(new Runnable() { @Override public void run() { callback.success(result); } }); } } } }); } /** * post方式 */ public void postData(String url, Map<String,String> params, final ICallback callback){ FormBody.Builder builder = new FormBody.Builder(); for (Map.Entry<String, String> bean : params.entrySet()) { builder.add(bean.getKey(),bean.getValue()); } final Request request = new Request.Builder() .url(url).post(builder.build()).build(); okHttpClient.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { if (callback!=null){ handler.post(new Runnable() { @Override public void run() { callback.fail("请求失败"); } }); } } @Override public void onResponse(Call call, Response response) throws IOException { if (callback!=null){ if (response.isSuccessful()&&response.code()==200){ final String result = response.body().string(); handler.post(new Runnable() { @Override public void run() { callback.success(result); } }); } } } }); } public interface ICallback{ void success(String result); void fail(String msg); } }
P层的 NewsPresenter
public class NewsPresenter { private INews iNews; private NewsModel model; public NewsPresenter(INews iNews) { model = new NewsModel(); attach(iNews); } /** * 绑定view * @param iNews */ public void attach(INews iNews){ this.iNews = iNews; } /** * 获取数据的方法 * * @param getUrl */ public void getData(String getUrl, Map<String ,String> params) { model.getData(getUrl, params,new NewsModel.ResponseCallback() { @Override public void success(String result) { if (!TextUtils.isEmpty(result)) { Log.e("TAG", "success: result = "+result ); String s = result.replace("null(","") .replace(")",""); Log.e("TAG", "success: s = "+s ); News news = new Gson().fromJson(s, News.class); iNews.success(news); } } @Override public void fail(String msg) { } }); } /** * 解绑 */ public void detach(){ this.iNews = null; } }
Model层的 NewsModel
public class NewsModel { /** * 请求数据 * @param getUrl */ public void getData(String getUrl, Map<String,String> params,final ResponseCallback responseCallback) { OkhttpUtils.getInstance().postData(getUrl,params, new OkhttpUtils.ICallback() { @Override public void success(String result) { responseCallback.success(result); } @Override public void fail(String msg) { responseCallback.fail(msg); } }); } public interface ResponseCallback{ void success(String result); void fail(String msg); } }
db包下的 数据库 DbHelper
public class DbHelper extends SQLiteOpenHelper { //数据库文件名称 private static final String DB_NAME = "news.db"; public static final String NEWS_TABLE_NAME = "news"; private static final int VERSION = 1; public DbHelper(Context context) { super(context, DB_NAME, null, VERSION); } @Override public void onCreate(SQLiteDatabase sqLiteDatabase) { String sql = "create table " + NEWS_TABLE_NAME + " (_id Integer PRIMARY KEY ,json text)"; sqLiteDatabase.execSQL(sql); } @Override public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) { } }
common包下的 Constants
public class Constants { public static final String GET_URL = "http://ttpc.dftoutiao.com/jsonpc/refresh"; public static final int TYPE1 = 1; public static final int TYPE2 = 2; public static final int TYPE3 = 3; }
bean包下 的两个bean类
News 请求数据的bean类
public class News { public String stat; public List<Data> data; public class Data { public String topic; public String source; public List<IMG> miniimg; public class IMG { public String src; } } }
LocalNews 操作数据库的bean类
public class LocalNews { public String title; public String imgurls; public String source; public String time; public boolean isDel; }
多条目的三种布局
news_item_layout
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:padding="10dp" android:gravity="center_vertical" android:layout_width="match_parent" android:layout_height="150dp"> <ImageView android:id="@+id/img1" android:src="@mipmap/ic_launcher" android:scaleType="centerCrop" android:layout_width="150dp" android:layout_height="120dp" /> <TextView android:id="@+id/title1" android:text="title" android:layout_toRightOf="@+id/img1" android:layout_marginLeft="30dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </RelativeLayout>
news_item2_layout
<?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:padding="10dp" android:layout_height="200dp"> <TextView android:layout_margin="10dp" android:id="@+id/title2" android:text="title" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <LinearLayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <ImageView android:id="@+id/img1" android:layout_weight="1" android:layout_width="0dp" android:layout_marginRight="5dp" android:scaleType="centerCrop" android:src="@mipmap/ic_launcher" android:layout_height="120dp" /> <ImageView android:id="@+id/img2" android:layout_weight="1" android:layout_width="0dp" android:layout_marginLeft="5dp" android:scaleType="centerCrop" android:src="@mipmap/ic_launcher" android:layout_height="120dp" /> </LinearLayout> </LinearLayout>
news_item3_layout
<?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:padding="10dp" android:layout_height="150dp"> <TextView android:layout_margin="10dp" android:id="@+id/title3" android:text="title" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <LinearLayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <ImageView android:id="@+id/img1" android:layout_weight="1" android:layout_width="0dp" android:layout_marginRight="10dp" android:scaleType="centerCrop" android:src="@mipmap/ic_launcher" android:layout_height="120dp" /> <ImageView android:id="@+id/img2" android:layout_weight="1" android:layout_width="0dp" android:scaleType="centerCrop" android:src="@mipmap/ic_launcher" android:layout_height="120dp" /> <ImageView android:id="@+id/img3" android:layout_weight="1" android:layout_width="0dp" android:layout_marginLeft="10dp" android:scaleType="centerCrop" android:src="@mipmap/ic_launcher" android:layout_height="120dp" /> </LinearLayout> </LinearLayout>
最最最最最最最最最最最重要的适配器！！！！！！！！！！！！！！！！
NewsAdapter
public class NewsAdapter extends XRecyclerView.Adapter<XRecyclerView.ViewHolder> { private List<News.Data> list; private Context context; private News news; public NewsAdapter(List<News.Data> list, Context context,News news) { this.list = list; this.context = context; this.news = news; } public void loadMore(List<News.Data> data) { if (list != null) { list.addAll(data); notifyDataSetChanged(); } } @NonNull @Override public XRecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { if (viewType == Constants.TYPE1){ View view = LayoutInflater.from(context).inflate(R.layout.news_item_layout,parent,false); return new MyViewHolder01(view); }else if (viewType == Constants.TYPE2){ View view2 = LayoutInflater.from(context).inflate(R.layout.news_item2_layout,parent,false); return new MyViewHolder02(view2); }else { View view3 = LayoutInflater.from(context).inflate(R.layout.news_item3_layout,parent,false); return new MyViewHolder03(view3); } } @Override public void onBindViewHolder(@NonNull final RecyclerView.ViewHolder holder, int position) { holder.itemView.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View view) { AlertDialog.Builder builder = new AlertDialog.Builder(context); builder.setTitle("确定要删除吗？？？"); builder.setNegativeButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { int layoutPosition = holder.getLayoutPosition()-1; list.remove(layoutPosition);//删除集合的数据 // beans.data = list; // String s = new Gson().toJson(beans); notifyItemRemoved(layoutPosition);//局部删除当前view并局部刷新 } }); builder.setNeutralButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { } }); builder.show(); return true; } }); News.Data data = list.get(position); if (holder instanceof MyViewHolder03){ ((MyViewHolder03) holder).title.setText(data.topic); if (data.miniimg != null && data.miniimg.size() > 0) { if (data.miniimg.size() == 1) { Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder03) holder).img1); Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder03) holder).img2); Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder03) holder).img3); } else if (data.miniimg.size() == 2) { Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder03) holder).img1); Glide.with(context).load(data.miniimg.get(1).src).into(((MyViewHolder03) holder).img2); Glide.with(context).load(data.miniimg.get(1).src).into(((MyViewHolder03) holder).img3); } else { Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder03) holder).img1); Glide.with(context).load(data.miniimg.get(1).src).into(((MyViewHolder03) holder).img2); Glide.with(context).load(data.miniimg.get(2).src).into(((MyViewHolder03) holder).img3); } } }else if (holder instanceof MyViewHolder02){ ((MyViewHolder02) holder).title.setText(data.topic); if (data.miniimg.size() == 1){ Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder02) holder).img1); Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder02) holder).img2); }else { Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder02) holder).img1); Glide.with(context).load(data.miniimg.get(1).src).into(((MyViewHolder02) holder).img2); } }else if (holder instanceof MyViewHolder01){ ((MyViewHolder01) holder).title.setText(data.topic); Glide.with(context).load(data.miniimg.get(0).src).into(((MyViewHolder01) holder).img1); } } @Override public int getItemViewType(int position) { if (position % 3 == 0){ return Constants.TYPE1; }else if (position % 3 == 1){ return Constants.TYPE2; }else { return Constants.TYPE3; } } @Override public int getItemCount() { return list.size(); } public class MyViewHolder01 extends XRecyclerView.ViewHolder{ ImageView img1; TextView title; public MyViewHolder01(View itemView) { super(itemView); img1 = itemView.findViewById(R.id.img1); title = itemView.findViewById(R.id.title1); } } public class MyViewHolder02 extends XRecyclerView.ViewHolder{ ImageView img1,img2; TextView title; public MyViewHolder02(View itemView) { super(itemView); img1 = itemView.findViewById(R.id.img1); img2 = itemView.findViewById(R.id.img2); title = itemView.findViewById(R.id.title2); } } public class MyViewHolder03 extends XRecyclerView.ViewHolder{ ImageView img1,img2,img3; TextView title; public MyViewHolder03(View itemView) { super(itemView); img1 = itemView.findViewById(R.id.img1); img2 = itemView.findViewById(R.id.img2); img3 = itemView.findViewById(R.id.img3); title = itemView.findViewById(R.id.title3); } } }
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