Android中RecyclerView的item中控件的点击事件添加删除一行、上移下移一行的代码实现

编写不易，如有转载，请声明出处: 梦回河口：http://blog.csdn.net/zxc514257857/article/details/73615160

Demo展示图片

布局代码

  注：为了显示水波纹效果，minSdkVersion设置为21。代码没有适配5.0以下，如果要适配5.0以下，可参考：Android开发中的水波纹效果实现 http://blog.csdn.net/zxc514257857/article/details/73200900

// (layout)activity_main.xml<RelativeLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_main"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.text.recyclerviewdemo.MainActivity">    <android.support.v7.widget.RecyclerView        android:id="@+id/recyclerview"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:overScrollMode="never"        android:scrollbars="none"/></RelativeLayout>----------------------------------------------------------------------------------------// (layout)recyclerview_item.xml<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:background="@drawable/recyclerview_bg">    <TextView        android:id="@+id/num"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:textSize="20sp"        android:layout_margin="10dp"        android:textColor="#fff"/>    <TextView        android:id="@+id/data"        android:layout_toLeftOf="@+id/ll"        android:layout_marginTop="10dp"        android:layout_marginBottom="10dp"        android:layout_marginRight="50dp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:textSize="20sp"        android:textColor="@color/colorPrimaryDark"/>    <LinearLayout        android:id="@+id/ll"        android:layout_alignParentRight="true"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="horizontal">        <TextView            android:id="@+id/add"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="添加"            android:textSize="20sp"            android:layout_margin="10dp"            android:background="@drawable/ripple_bg"            android:clickable="true"            android:textColor="#fff"/>        <TextView            android:id="@+id/del"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="删除"            android:textSize="20sp"            android:layout_margin="10dp"            android:background="@drawable/ripple_bg"            android:clickable="true"            android:textColor="#fff"/>        <TextView            android:id="@+id/up"            android:layout_width="35dp"            android:layout_height="wrap_content"            android:text="↑"            android:textSize="20sp"            android:gravity="center"            android:layout_margin="10dp"            android:background="@drawable/ripple_bg"            android:clickable="true"            android:textColor="#fff"/>        <TextView            android:id="@+id/down"            android:layout_width="35dp"            android:layout_height="wrap_content"            android:text="↓"            android:textSize="20sp"            android:gravity="center"            android:layout_margin="10dp"            android:background="@drawable/ripple_bg"            android:clickable="true"            android:textColor="#fff"/>    </LinearLayout></RelativeLayout>----------------------------------------------------------------------------------------// (layout)recyclerview_bg.xml<selector xmlns:android="http://schemas.android.com/apk/res/android">    <item>        <shape android:shape="rectangle">            <solid android:color="@color/colorAccent"/>            <stroke android:width="1dp" android:color="@color/colorPrimaryDark"/>        </shape>    </item></selector>----------------------------------------------------------------------------------------// (layout)ripple_bg.xml<ripple xmlns:android="http://schemas.android.com/apk/res/android"        android:color="@color/colorPrimaryDark"></ripple>

逻辑代码

  注：需在module中的dependencies节点下添加：

compile 'com.yanzhenjie:recyclerview-swipe:1.0.4'

// MyAdapter import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.TextView;import com.yanzhenjie.recyclerview.swipe.SwipeMenuAdapter;import java.util.List;public class MyAdapter extends SwipeMenuAdapter<MyAdapter.MyViewHolder> {    private List<String> strList;    private OnItemClickListener mOnItemClickListener;    public MyAdapter(List<String> strList){        this.strList = strList;    }    public void setOnItemClickListener(OnItemClickListener onItemClickListener){        this.mOnItemClickListener = onItemClickListener;    }    @Override    public View onCreateContentView(ViewGroup parent, int viewType) {        return LayoutInflater.from(parent.getContext()).inflate(R.layout.recyclerview_item, parent, false);    }    @Override    public MyAdapter.MyViewHolder onCompatCreateViewHolder(View realContentView, int viewType) {        MyViewHolder myViewHolder = new MyViewHolder(realContentView);        myViewHolder.mOnItemClickListener = mOnItemClickListener;        return myViewHolder;    }    @Override    public void onBindViewHolder(MyAdapter.MyViewHolder holder, int position) {        holder.num.setText((position + 1) + "");        holder.data.setText(strList.get(position));    }    @Override    public int getItemCount() {        return strList == null ? 0 : strList.size();    }    class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {        OnItemClickListener mOnItemClickListener;        TextView num;        TextView data;        TextView add;        TextView del;        TextView up;        TextView down;        public MyViewHolder(View itemView) {            super(itemView);            num = (TextView) itemView.findViewById(R.id.num);            data = (TextView) itemView.findViewById(R.id.data);            add = (TextView) itemView.findViewById(R.id.add);            del = (TextView) itemView.findViewById(R.id.del);            up = (TextView) itemView.findViewById(R.id.up);            down = (TextView) itemView.findViewById(R.id.down);            add.setOnClickListener(this);            del.setOnClickListener(this);            up.setOnClickListener(this);            down.setOnClickListener(this);        }        @Override        public void onClick(View v) {            if (mOnItemClickListener != null) {                mOnItemClickListener.onItemClick(getAdapterPosition() , v);            }        }    }}----------------------------------------------------------------------------------------// OnItemClickListenerimport android.view.View;public interface OnItemClickListener {    void onItemClick(int position , View v);}----------------------------------------------------------------------------------------// MainActivityimport android.content.Context;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.util.Log;import android.view.View;import android.widget.Toast;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {    private static final String TAG = "MainActivity";    private RecyclerView mRecyclerView;    private Context mContext = MainActivity.this;    private List<String> mStrList;    private MyAdapter mMyAdapter;    private int clickTime = 0;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initData();    }    public void initData(){        mStrList = new ArrayList<>();        for (int i = 0 ; i < 20 ; i++){            mStrList.add(i + "");        }        mRecyclerView = (RecyclerView) findViewById(R.id.recyclerview);        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(mContext);        linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);        mRecyclerView.setLayoutManager(linearLayoutManager);        mMyAdapter = new MyAdapter(mStrList);        // 设置item及item中控件的点击事件        mMyAdapter.setOnItemClickListener(onItemClickListener);        mRecyclerView.setAdapter(mMyAdapter);    }    /**     * Item点击监听     */    private OnItemClickListener onItemClickListener = new OnItemClickListener() {        @Override        public void onItemClick(int position , View v) {            switch (v.getId()){                case R.id.add:                    clickTime++;                    Toast.makeText(mContext, "增:" + position, Toast.LENGTH_SHORT).show();                    mStrList.add(position+ 1 , "增" + clickTime);                    mMyAdapter.notifyDataSetChanged();                    Log.i(TAG , "mStrList:" + mStrList.toString());                    break;                case R.id.del:                    Toast.makeText(mContext, "删:" + position, Toast.LENGTH_SHORT).show();                    mStrList.remove(position);                    mMyAdapter.notifyDataSetChanged();                    break;                case R.id.up:                    if(position == 0){                        Toast.makeText(mContext, "已经在顶部,无法移动!:" + position, Toast.LENGTH_SHORT).show();                    }else if(position > 0 && position <= mStrList.size()-1){                        Toast.makeText(mContext, "上:" + position, Toast.LENGTH_SHORT).show();                        swap(mStrList , position , position-1);                        mMyAdapter.notifyDataSetChanged();                    }                    break;                case R.id.down:                    if(position == mStrList.size()-1){                        Toast.makeText(mContext, "已经在底部,无法移动!:" + position, Toast.LENGTH_SHORT).show();                    }else if(position >= 0 && position < mStrList.size()-1){                        Toast.makeText(mContext, "下:" + position, Toast.LENGTH_SHORT).show();                        swap(mStrList , position , position+1);                        mMyAdapter.notifyDataSetChanged();                    }                    break;            }        }    };    /**     * 集合中两个元素的交换操作     * @param list     * @param oldPosition     * @param newPosition     * @param <T>     */    public static <T> void swap(List<T> list, int oldPosition, int newPosition){        if(null == list){            throw new IllegalStateException("The list can not be empty...");        }        T tempElement = list.get(oldPosition);        // 向前移动，前面的元素需要向后移动        if(oldPosition < newPosition){            for(int i = oldPosition; i < newPosition; i++){                list.set(i, list.get(i + 1));            }            list.set(newPosition, tempElement);        }        // 向后移动，后面的元素需要向前移动        if(oldPosition > newPosition){            for(int i = oldPosition; i > newPosition; i--){                list.set(i, list.get(i - 1));            }            list.set(newPosition, tempElement);        }    }}

Demo下载请移步：http://download.csdn.net/detail/zxc514257857/9878510


———-因本人才疏学浅，如博客或Demo中有错误的地方请大家随意指出，与大家一起讨论，共同进步，谢谢！———-