Android RecyclerView與泛型 簡(jiǎn)單實(shí)現(xiàn)多布局

RecyclerView簡(jiǎn)介：

谷歌在support v7中，加入了新的控件——RecyclerView，該控件整合了ListView、GridView的特點(diǎn)，而且最大的優(yōu)點(diǎn)是可以很方便實(shí)現(xiàn)瀑布流效果，多布局控制效果等等，因此RecyclerView受到越來越多的開發(fā)者重視。

引入RecyclerView

由于該控件并不在Andorid SDK中的，而是在support v7包中，因此我們要手動(dòng)添加該控件。
在build.gradle中添加如下依賴：

dependencies {   
  ...
  compile 'com.android.support:appcompat-v7:23.1.1'  //Toolbar
  compile 'com.android.support:recyclerview-v7:23.1.1' //RecyclerView
}

幾個(gè)重要的類:

  1. RecyclerView.Adapter:抽象類，為RecyclerView提供數(shù)據(jù)，一般根據(jù)不同的業(yè)務(wù)需求來編寫具體的實(shí)現(xiàn)類。
  2. RecyclerView.LayoutManager:抽象類，主要用于測(cè)量RecyclerView的子Item，以及根據(jù)不同的布局方式來實(shí)現(xiàn)Item的布局效果，v7包自帶的實(shí)現(xiàn)類有：LinearLayoutManager、StaggeredGridLayoutManager、GridLayoutManager。
  3. RecyclerView.ItemDecoration:抽象類，這個(gè)主要用于不同的Item之間添加分割線（可選）。官方?jīng)]有實(shí)現(xiàn)類，所以如果要添加分割線，我們需要手動(dòng)實(shí)現(xiàn)這個(gè)抽象類。
  4. RecyclerView.ItemAnimator:抽象類，這個(gè)主要用于當(dāng)一個(gè)item添加或者刪除的時(shí)候出現(xiàn)的動(dòng)畫效果，官方提供一個(gè)默認(rèn)的實(shí)現(xiàn)類。如果想要使我們的RecyclerView在添加、刪除數(shù)據(jù)的時(shí)候有炫酷的動(dòng)畫，可以實(shí)現(xiàn)這個(gè)抽象類。

使用RecyclerView的主要步驟：

  1. 引入RecyclerView
  2. 添加XML布局
  3. 封裝Adapter適配器
  4. 封裝RecyclerView.ViewHolder類
  5. 實(shí)現(xiàn)多布局展示
  6. 各布局控件監(jiān)聽

注：在此主要實(shí)現(xiàn)三種不同布局加載，RecyclerView監(jiān)聽及子布局監(jiān)聽

MyAdapter類代碼：

package com.example.administrator.foundationdemo.recyclerview;

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

import com.example.administrator.foundationdemo.R;

import java.util.List;

/**
 * Created by "sinlov" on 2017/4/12.
 */
public abstract class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {

    private int mLayoutId;
    private Context mContext;
    private List<Data> mDataSet;

    /**
     * 構(gòu)造器，接受數(shù)據(jù)集
     * @param data
     */
    public MyAdapter(Context context,List<Data> data){
        mContext = context;
        mDataSet = data;
    }

    /**
     * onCreateViewHolder:創(chuàng)建ViewHolder，
     * 該方法會(huì)在RecyclerView需要展示一個(gè)item的時(shí)候回調(diào)。
     * 重寫該方法時(shí)，應(yīng)該使ViewHolder加載item view的布局。
     * 這個(gè)能發(fā)避免了不必要的findViewById操作，提高了性能。
     *
     * @param parent
     * @param viewType
     * @return
     */
    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        //加載布局文件
        switch (viewType){
            case ViewItems.TEMPLATE_1:
                break;
            case ViewItems.TEMPLATE_2:
                mLayoutId = R.layout.activity_recycler_view_recyclerview_item_my;

                break;
            case ViewItems.TEMPLATE_3:

                break;
            case ViewItems.TEMPLATE_4:
                break;
            case ViewItems.TEMPLATE_5:
                mLayoutId = R.layout.activity_recycler_view_recyclerview_item_ordinary_notification_1;
                break;
            case ViewItems.TEMPLATE_6:
                mLayoutId = R.layout.activity_recycler_view_recyclerview_item_ordinary_notification_2;
                break;
        }
        MyViewHolder holder = MyViewHolder.get(mContext,null,parent,mLayoutId);
        setListener(parent, holder);
        return holder;
    }

    /**
     * onBindeViewHolder:該方法在RecyclerView在特定位置展示數(shù)據(jù)時(shí)候回調(diào)，顧名思義，把數(shù)據(jù)綁定、填充到相應(yīng)的item view中
     *
     * @param holder
     * @param position
     */
    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        //將數(shù)據(jù)填充到具體的view中
        convert(holder,mDataSet.get(position));
    }

    public abstract void convert(MyViewHolder holder, Data t);

    /**
     * 通過重寫getItemViewType(int position)方法來告訴onCreateViewHolder(...)每個(gè)條目對(duì)應(yīng)的布局
     * @param position
     * @return
     */
    @Override
    public int getItemViewType(int position) {
        return mDataSet.get(position).getViewType();
    }


    /**
     * getItemCount:返回?cái)?shù)據(jù)的數(shù)量
     * @return
     */
    @Override
    public int getItemCount() {
        return mDataSet.size();
    }


    /**
     * java回調(diào)機(jī)制，依賴于子Item View的onClickListener及onLongClickListener。
     * @param <T> //數(shù)據(jù)類
     */
    public interface OnItemClickListener<T>{
        //RecyclerView監(jiān)聽
        void onItemClick(ViewGroup parent, View view, T t, int position);
    }
    public interface OnItemLongClickListener<T>{
        //長(zhǎng)按監(jiān)聽
        boolean onItemLongClick(ViewGroup parent, View view, T t, int position);
    }

    private OnItemClickListener mOnItemClickListener;
    private OnItemLongClickListener mOnItemLongClickListener;

    public void setOnItemClickListener(OnItemClickListener mOnItemClickListener){
        this.mOnItemClickListener = mOnItemClickListener;
    }

    public void setOnItemLongClickListener(OnItemLongClickListener mOnItemLongClickListener) {
        this.mOnItemLongClickListener = mOnItemLongClickListener;
    }

    protected void setListener(final ViewGroup parent, final MyViewHolder holder){
        //判斷是否設(shè)置了監(jiān)聽器
        if(mOnItemClickListener != null) {
            //為ItemView設(shè)置監(jiān)聽器
            holder.getConvertView().setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    int position = holder.getLayoutPosition();
                    mOnItemClickListener.onItemClick(parent, v, mDataSet.get(position), position);
                }
            });
        }
        if(mOnItemLongClickListener != null){
            holder.getConvertView().setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {
                    if (mOnItemLongClickListener != null) {
                        int position = holder.getLayoutPosition();
                        return mOnItemLongClickListener.onItemLongClick(parent, v, mDataSet.get(position), position);
                        //返回true 表示消耗了事件 事件不會(huì)繼續(xù)傳遞
                    }

                    return false;
                }
            });
        }
    }
}

MyViewHolder類代碼：

package com.example.administrator.foundationdemo.recyclerview;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.support.v7.widget.RecyclerView;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * Created by "sinlov" on 2017/4/13.
 */
public class MyViewHolder extends RecyclerView.ViewHolder {


    private SparseArray<View> mViews;
    private View mConvertView;
    private Context mContext;
    private int mLayoutId;

    public MyViewHolder(Context context, View itemView, ViewGroup parent) {
        super(itemView);
        //由于itemView是item的布局文件，我們需要的是里面的textView，因此利用itemView.findViewById獲
        //取里面的View實(shí)例，后面通過onBindViewHolder方法能直接填充數(shù)據(jù)到每一個(gè)View了
        mContext = context;
        mConvertView = itemView;
        //運(yùn)用泛型，適配所有的View，多布局，不用寫多個(gè)RecyclerView.ViewHolder。
        mViews = new SparseArray<View>();
        mConvertView.setTag(this);

    }

    //緩存
    public static MyViewHolder get(Context context, View convertView,
                                 ViewGroup parent, int layoutId){

        if(null==convertView){
            View itemView = LayoutInflater.from(context).inflate(layoutId, parent, false);
            MyViewHolder holder = new MyViewHolder(context, itemView, parent);
            holder.mLayoutId = layoutId;
            return holder;
        }else {
            MyViewHolder holder = (MyViewHolder) convertView.getTag();
            return holder;
        }
    }

    /**
     * 通過viewId獲取控件
     *
     * @param viewId
     * @return
     */
    public <T extends View> T getView(int viewId)
    {
        View view = mViews.get(viewId);
        if (view == null)
        {
            view = mConvertView.findViewById(viewId);
            mViews.put(viewId, view);
        }
        return (T) view;
    }

    public View getConvertView()
    {
        return mConvertView;
    }

    /**
     * 設(shè)置TextView的值
     *
     * @param viewId
     * @param text
     * @return
     */
    public MyViewHolder setText(int viewId, String text)
    {
        TextView tv = getView(viewId);
        tv.setText(text);
        return this;
    }

    public MyViewHolder setImageResource(int viewId, int resId)
    {
        ImageView view = getView(viewId);
        view.setImageResource(resId);
        return this;
    }

    public MyViewHolder setImageBitmap(int viewId, Bitmap bitmap)
    {
        ImageView view = getView(viewId);
        view.setImageBitmap(bitmap);
        return this;
    }

    public MyViewHolder setImageDrawable(int viewId, Drawable drawable)
    {
        ImageView view = getView(viewId);
        view.setImageDrawable(drawable);
        return this;
    }

    public MyViewHolder setBackgroundColor(int viewId, int color)
    {
        View view = getView(viewId);
        view.setBackgroundColor(color);
        return this;
    }

    public MyViewHolder setBackgroundRes(int viewId, int backgroundRes)
    {
        View view = getView(viewId);
        view.setBackgroundResource(backgroundRes);
        return this;
    }

    public MyViewHolder setTextColor(int viewId, int textColor)
    {
        TextView view = getView(viewId);
        view.setTextColor(textColor);
        return this;
    }

    public MyViewHolder setTextColorRes(int viewId, int textColorRes)
    {
        TextView view = getView(viewId);
        view.setTextColor(mContext.getResources().getColor(textColorRes));
        return this;
    }

    public int getDrawableId(String drawableName){
        int resId = mContext.getResources().getIdentifier(drawableName,"drawable",mContext.getPackageName());
       return resId;
    }

}

RecyclerViewActivity類代碼：

package com.example.administrator.foundationdemo.recyclerview;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.administrator.foundationdemo.R;

import java.util.ArrayList;
import java.util.List;

public class RecyclerViewActivity extends AppCompatActivity {


    private RecyclerView mRecyclerView;
    private MyAdapter mAdapter;
    private List<Data> mData;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_recycler_view);
        initData();
        initRecyclerView();
    }

    private void initData() {
        mData = new ArrayList<Data>();
        mData.add(new Data(1,"楓陽","recycler_my","FLY346422332","recycler_two"));
        mData.add(new Data(4,"相冊(cè)","recycler_photo"));
        mData.add(new Data(5,"收藏","recycler_collect"));
        mData.add(new Data(4, "錢包", "recycler_money"));
        mData.add(new Data(5, "卡包", "recycler_card"));
        mData.add(new Data(4, "表情", "recycler_expression"));
        mData.add(new Data(4, "設(shè)置", "recycler_install"));
    }

    private void initRecyclerView() {
        //1 實(shí)例化RecyclerView
        mRecyclerView = (RecyclerView) findViewById(R.id.recyclerview);
        //2 為RecyclerView創(chuàng)建布局管理器，這里使用的是LinearLayoutManager，表示里面的Item排列是線性排列
        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        handlerRecyclerView();
        //3 設(shè)置數(shù)據(jù)適配器
        mRecyclerView.setAdapter(mAdapter);
    }

    private void handlerRecyclerView() {
        mAdapter = new MyAdapter(this, mData) {
            @Override
            public void convert(MyViewHolder holder, Data data) {
                switch (data.getViewType()){
                    case ViewItems.TEMPLATE_2:
                        handlerTemplate2(holder,data);
                        break;
                    case ViewItems.TEMPLATE_5:
                        handlerTemplate5(holder,data);
                        break;
                    case ViewItems.TEMPLATE_6:
                        handlerTemplate6(holder,data);
                        break;
                    default:
                        Log.d("FLY","錯(cuò)誤了");
                        break;
                }
            }
        };

        mAdapter.setOnItemClickListener(new MyAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(ViewGroup parent, View view, Object o, int position) {
                Data data = (Data) o;
                Toast.makeText(RecyclerViewActivity.this, data.getName() + "：  " + position, Toast.LENGTH_SHORT).show();
            }
        });
    }

    private void handlerTemplate2(MyViewHolder holder, Data data){
        ImageView photo = holder.getView(R.id.recyclerview_item_my_photo);
        photo.setImageResource(holder.getDrawableId(data.getLogo()));
        TextView name = holder.getView(R.id.recyclerview_item_my_name);
        name.setText(data.getName());
        TextView number = holder.getView(R.id.recyclerview_item_my_number);
        number.setText("微信號(hào): " + data.getNotificationText());
        ImageView two = holder.getView(R.id.recyclerview_item_my_two);
        two.setImageResource(holder.getDrawableId(data.getNotificationImg()));
        two.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(RecyclerViewActivity.this,"two 000000 ",Toast.LENGTH_SHORT).show();
            }
        });
    }
    private void handlerTemplate5(MyViewHolder holder, Data data){
        ImageView photo = holder.getView(R.id.recyclerview_item_ordinary_1_img);
        photo.setImageResource(holder.getDrawableId(data.getLogo()));
        TextView name = holder.getView(R.id.recyclerview_item_ordinary_1_text);
        name.setText(data.getName());
        if (null!= data.getNotificationText() ){
            TextView number = holder.getView(R.id.recyclerview_item_notification_1_img);
            number.setVisibility(View.VISIBLE);
            number.setText(data.getNotificationText());
        }
       if (null != data.getNotificationImg()){
           ImageView two = holder.getView(R.id.recyclerview_item_notification_1_text);
           two.setVisibility(View.VISIBLE);
           two.setImageResource(holder.getDrawableId(data.getNotificationImg()));
       }

    }
    private void handlerTemplate6(MyViewHolder holder, Data data){
        ImageView photo = holder.getView(R.id.recyclerview_item_ordinary_2_img);
        photo.setImageResource(holder.getDrawableId(data.getLogo()));
        TextView name = holder.getView(R.id.recyclerview_item_ordinary_2_text);
        name.setText(data.getName());
        if (null!= data.getNotificationText() ){
            TextView number = holder.getView(R.id.recyclerview_item_notification_2_img);
            number.setVisibility(View.VISIBLE);
            number.setText(data.getNotificationText());
        }
        if (null != data.getNotificationImg()){
            ImageView two = holder.getView(R.id.recyclerview_item_notification_2_text);
            two.setVisibility(View.VISIBLE);
            two.setImageResource(holder.getDrawableId(data.getNotificationImg()));
        }
    }


}

Deta數(shù)據(jù)類代碼：

package com.example.administrator.foundationdemo.recyclerview;

/**
 * Created by "sinlov" on 2017/4/13.
 */
public class Data {

    private int viewType;

    private String name;

    private String logo;

    private String notificationText;

    private String notificationImg;

    public Data(){

    }

    public Data(int viewType, String name, String logo) {
        this.viewType = viewType;
        this.name = name;
        this.logo = logo;
    }

    public Data(int viewType, String name, String logo, String notificationText, String notificationImg) {
        this.viewType = viewType;
        this.name = name;
        this.logo = logo;
        this.notificationText = notificationText;
        this.notificationImg = notificationImg;
    }

    public int getViewType() {
        return viewType;
    }

    public void setViewType(int viewType) {
        this.viewType = viewType;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getLogo() {
        return logo;
    }

    public void setLogo(String logo) {
        this.logo = logo;
    }

    public String getNotificationText() {
        return notificationText;
    }

    public void setNotificationText(String notificationText) {
        this.notificationText = notificationText;
    }

    public String getNotificationImg() {
        return notificationImg;
    }

    public void setNotificationImg(String notificationImg) {
        this.notificationImg = notificationImg;
    }
}

ViewItems類代碼：

package com.example.administrator.foundationdemo.recyclerview;

/**
 * Created by HooRang on 2017/2/22.
 */
public class ViewItems {



    /*分別對(duì)應(yīng)R.layout.activity_recycler_view_recyclerview_item_x*/

   //chat
   public static final int  TEMPLATE_1 = 0x0;

   //my
   public static final int  TEMPLATE_2 = 0x1;


   public static final int  TEMPLATE_3 = 0x2;

   //ordinary
   public static final int  TEMPLATE_4 = 0x3;

   //ordinary_notification_1
   public static final int  TEMPLATE_5 = 0x4;

   //ordinary_notification_2
   public static final int  TEMPLATE_6 = 0x5;




}

activity_recycler_view XML布局代碼：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:toolbar="http://schemas.android.com/apk/res-auto"
    style="@style/MatchMatch"
    android:background="#d2caca"
    tools:context="com.example.administrator.foundationdemo.recyclerview.RecyclerViewActivity">
    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerview"
        style="@style/MatchMatch"/>
</LinearLayout>

activity_recycler_view_recyclerview_item_my XML布局代碼：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:background="#fcfcfc"
    android:layout_marginTop ="25dp"
    android:layout_width="match_parent"
    android:layout_height="65dp">

    <RelativeLayout
        android:id="@+id/recyclerview_item_my_relative"
        android:layout_width="0dp"
        android:background="@null"
        android:layout_height="match_parent"
        android:layout_weight="5">

        <ImageView
            android:id="@+id/recyclerview_item_my_photo"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:background="@null"
            android:layout_centerVertical="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:layout_marginLeft="20dp"
            android:layout_marginStart="20dp"
            android:src="@mipmap/ic_launcher" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="15sp"
            android:textStyle="bold"
            android:text="測(cè)試"
            android:id="@+id/recyclerview_item_my_name"
            android:layout_alignTop="@+id/recyclerview_item_my_photo"
            android:layout_toRightOf="@+id/recyclerview_item_my_photo"
            android:layout_toEndOf="@+id/recyclerview_item_my_photo"
            android:layout_marginLeft="20dp"
            android:layout_marginStart="20dp" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="10sp"
            android:text="測(cè)試"
            android:id="@+id/recyclerview_item_my_number"
            android:layout_marginTop ="5dp"
            android:layout_below="@id/recyclerview_item_my_name"
            android:layout_alignLeft="@id/recyclerview_item_my_name"
            android:layout_alignStart="@id/recyclerview_item_my_name" />
    </RelativeLayout>
    <RelativeLayout

        android:background="@null"
        android:id="@+id/recyclerview_item_my_two_relative"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="0.8">
        <ImageView
            android:id="@+id/recyclerview_item_my_two"
            android:background="@null"
            android:src="@mipmap/ic_launcher"
            style="@style/WrapWrap"
            android:layout_centerVertical="true"
            android:layout_centerHorizontal="true" />
    </RelativeLayout>

</LinearLayout>

activity_recycler_view_recyclerview_item_ordinary_notification_1 XML布局代碼：

<?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"
    android:layout_marginTop ="25dp"
    android:background="#fcfcfc"
    android:orientation="vertical">

    <ImageView
        android:id="@+id/recyclerview_item_ordinary_1_img"
        style="@style/WrapWrap"
        android:background="@null"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginLeft="25dp"
        android:layout_marginStart="25dp"
        android:src="@mipmap/ic_launcher" />

    <TextView
        android:id="@+id/recyclerview_item_ordinary_1_text"
        style="@style/WrapWrap"
        android:textSize="15sp"
        android:text="測(cè)試"
        android:background="@null"
        android:layout_centerVertical="true"
        android:layout_toRightOf="@id/recyclerview_item_ordinary_1_img"
        android:layout_toEndOf="@id/recyclerview_item_ordinary_1_img"
        android:layout_marginLeft="25dp"
        android:layout_marginStart="25dp" />

    <ImageView
        android:visibility="gone"
        android:layout_width="35dp"
        android:layout_height="35dp"
        android:id="@+id/recyclerview_item_notification_1_img"
        android:background="@null"
        android:src="@mipmap/ic_launcher"
        android:layout_centerVertical="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:layout_marginRight="25dp"
        android:layout_marginEnd="25dp" />
    <TextView
        android:id="@+id/recyclerview_item_notification_1_text"
        style="@style/WrapWrap"
        android:textSize="10sp"
        android:visibility="gone"
        android:text="測(cè)試"
        android:background="@null"
        android:layout_centerVertical="true"
        android:layout_toLeftOf="@id/recyclerview_item_notification_1_img"
        android:layout_toStartOf="@id/recyclerview_item_notification_1_img"
        android:layout_marginRight="25dp"
        android:layout_marginEnd="25dp" />

</RelativeLayout>

activity_recycler_view_recyclerview_item_ordinary_notification_2 XML布局代碼：

<?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="wrap_content"
    android:background="#fcfcfc"
    android:orientation="vertical">

    <TextView
        android:background="#d2caca"
        android:layout_width="match_parent"
        android:layout_height="1.5dp"
        android:layout_marginLeft="25dp"
        android:layout_marginRight="25dp"
        android:id="@+id/textView_null" />

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="@null"
        android:layout_below="@+id/textView_null"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true">
        <ImageView
            android:id="@+id/recyclerview_item_ordinary_2_img"
            style="@style/WrapWrap"
            android:background="@null"
            android:layout_centerVertical="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:layout_marginLeft="25dp"
            android:layout_marginStart="25dp"
            android:src="@mipmap/ic_launcher" />

        <TextView
            android:id="@+id/recyclerview_item_ordinary_2_text"
            style="@style/WrapWrap"
            android:textSize="15sp"
            android:text="測(cè)試"
            android:background="@null"
            android:layout_centerVertical="true"
            android:layout_toRightOf="@id/recyclerview_item_ordinary_2_img"
            android:layout_toEndOf="@id/recyclerview_item_ordinary_2_img"
            android:layout_marginLeft="25dp"
            android:layout_marginStart="25dp" />

        <ImageView
            android:visibility="gone"
            android:layout_width="35dp"
            android:layout_height="35dp"
            android:id="@+id/recyclerview_item_notification_2_img"
            android:background="@null"
            android:src="@mipmap/ic_launcher"
            android:layout_centerVertical="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true"
            android:layout_marginRight="25dp"
            android:layout_marginEnd="25dp" />
        <TextView
            android:visibility="gone"
            android:id="@+id/recyclerview_item_notification_2_text"
            style="@style/WrapWrap"
            android:textSize="10sp"
            android:text="測(cè)試"
            android:background="@null"
            android:layout_centerVertical="true"
            android:layout_toLeftOf="@id/recyclerview_item_notification_2_img"
            android:layout_toStartOf="@id/recyclerview_item_notification_2_img"
            android:layout_marginRight="25dp"
            android:layout_marginEnd="25dp" />
    </RelativeLayout>

</RelativeLayout>

希望對(duì)你們有幫助，O(∩_∩)O謝謝！?。?/p>

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