主要包含
1,多条目
2,点击事件与屏蔽
3,条目动画
4,分割线
实现效果如下图
Paste_Image.png
第一步
添加依赖
compile 'com.android.support:recyclerview-v7:23.1.1'
第二步
在布局activity_main.xml中添加RecyclerView控件
第三步
创建条目布局
recyclerview_item1.xml
recyclerview_item2.xml
第四步
在activity中开始使用RecyclerView
MainActivity.java
package com.boatt.recylerview;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import com.boatt.recylerview.adaper.RecyclerViewAdapter;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
public RecyclerView mRecyclerView;
protected List mData;//数据
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRecyclerView = (RecyclerView) findViewById(R.id.recyclerView);
//设置RecyclerView的布局管理
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
mRecyclerView.setLayoutManager(linearLayoutManager);
mRecyclerView.setItemAnimator(new DefaultItemAnimator());//设置动画
initData();
final RecyclerViewAdapter adapter = new RecyclerViewAdapter(this, mData);
mRecyclerView.setAdapter(adapter);//设置适配器
adapter.setmOnItemClickListener(new RecyclerViewAdapter.OnItemClickListener() {//设置点击事件
@Override
public void onItemClickListener(View view, int position) {
adapter.add(position);
}
@Override
public void onItemLongClickListener(View view, int position) {
adapter.delete(position);
}
});
//添加我们自定义的分隔线
mRecyclerView.addItemDecoration(new MyDecoration(this, MyDecoration.VERTICAL_LIST));
}
/**
* 初始化数据
*/
private void initData() {
mData = new ArrayList<>();
for (int i = 0; i < 60; i++) {
mData.add("我是条目"+i);
}
}
}
第五步
为RecyclerView创建适配器
RecyclerViewAdapter.java
package com.boatt.recylerview.adaper;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.boatt.recylerview.R;
import com.boatt.recylerview.holder.MyViewHolder1;
import com.boatt.recylerview.holder.MyViewHolder2;
import java.util.List;
/**
* Created by Administrator on 2016/11/16.
*/
public class RecyclerViewAdapter extends RecyclerView.Adapter{
/**
* 条目1
*/
private static final int ITEM1 = 1;
/**
* 条目2
*/
private static final int ITEM2 = 2;
private Context mContext;//上下文
protected List mData;//数据
private LayoutInflater mInflater;
/**
* 点击事件的接口
*/
public interface OnItemClickListener{
void onItemClickListener(View view, int position);//点击
void onItemLongClickListener(View view,int position);//长按
}
private OnItemClickListener mOnItemClickListener;
public void setmOnItemClickListener(OnItemClickListener mOnItemClickListener) {
this.mOnItemClickListener = mOnItemClickListener;
}
@Override
public int getItemViewType(int position) {
return position%2==0?ITEM1:ITEM2;
}
/**
* 构造函数
* @param context
* @param datas
*/
public RecyclerViewAdapter(Context context,List datas) {
this.mContext=context;
this.mData=datas;
mInflater=LayoutInflater.from(context);
}
/**
* 必须实现的方法
* @return
*/
@Override
public int getItemCount() {
return mData.size();
}
private static final String TAG = "RecyclerViewAdapter";
/**
* 创建一个ViewHolder
* @param parent
* @param viewType
* @return
*/
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if(viewType == ITEM1){
View view=mInflater.inflate(R.layout.recyclerview_item1,parent,false);//得到item的布局
MyViewHolder1 viewHolder=new MyViewHolder1(view);
return viewHolder;
}else{
View view=mInflater.inflate(R.layout.recyclerview_item2,parent,false);//得到item的布局
MyViewHolder2 viewHolder=new MyViewHolder2(view);
return viewHolder;
}
}
/**
* 绑定数据ViewHolder里面的数据
* @param holder
* @param position
*/
@Override
public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position) {
if(holder instanceof MyViewHolder1){
MyViewHolder1 holder1 = (MyViewHolder1)holder;
holder1.item_text.setText(mData.get(position));
setUpItemEvent(holder1);
return;
}else if(holder instanceof MyViewHolder2){
MyViewHolder2 holder2 = (MyViewHolder2)holder;
holder2.item_text.setText(mData.get(position));
return ;
}
}
/**
* 实现点击事件
* @param holder
*/
protected void setUpItemEvent(final MyViewHolder1 holder) {
if (mOnItemClickListener!=null){
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int layoutPosition = holder.getLayoutPosition();
mOnItemClickListener.onItemClickListener(holder.itemView,layoutPosition);
}
});
holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
int layoutPosition=holder.getLayoutPosition();
mOnItemClickListener.onItemLongClickListener(holder.itemView,layoutPosition);
return false;
}
});
}
}
/**
* 添加
* @param position
*/
public void add(int position){
mData.add(position,"position");
notifyItemInserted(position);
}
/**
* 删除
* @param position
*/
public void delete(int position){
mData.remove("position");
notifyItemRemoved(position);
}
}
第六步
创建Holder,分别有两个
MyViewHolder1 .java
package com.boatt.recylerview.holder;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.TextView;
import com.boatt.recylerview.R;
/**
* Holder
*/
public
class MyViewHolder1 extends RecyclerView.ViewHolder{
public TextView item_text;
public MyViewHolder1(View itemView) {
super(itemView);
item_text= (TextView) itemView.findViewById(R.id.item_text);
}
}
MyViewHolder2 .java
package com.boatt.recylerview.holder;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.TextView;
import com.boatt.recylerview.R;
/**
* Holder
*/
public class MyViewHolder2 extends RecyclerView.ViewHolder{
public TextView item_text;
public MyViewHolder2(View itemView) {
super(itemView);
item_text= (TextView) itemView.findViewById(R.id.item_text);
}
}
第七步
创建分割线
MyDecoration .java
package com.boatt.recylerview;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
/**
* Created by Administrator on 2016/11/16.
*/
public class MyDecoration extends RecyclerView.ItemDecoration{
private static final int[] ATTRS = new int[]{
android.R.attr.listDivider
};
public static final int HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL;
public static final int VERTICAL_LIST = LinearLayoutManager.VERTICAL;
private Drawable mDivider;
private int mOrientation;
public MyDecoration(Context context, int orientation) {
final TypedArray a = context.obtainStyledAttributes(ATTRS);
mDivider = a.getDrawable(0);
a.recycle();
setOrientation(orientation);
}
public void setOrientation(int orientation) {
if (orientation != HORIZONTAL_LIST && orientation != VERTICAL_LIST) {
throw new IllegalArgumentException("invalid orientation");
}
mOrientation = orientation;
}
@Override
public void onDraw(Canvas c, RecyclerView parent) {
if (mOrientation == VERTICAL_LIST) {
drawVertical(c, parent);
} else {
drawHorizontal(c, parent);
}
}
public void drawVertical(Canvas c, RecyclerView parent) {
final int left = parent.getPaddingLeft();
final int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
android.support.v7.widget.RecyclerView v = new android.support.v7.widget.RecyclerView(parent.getContext());
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
.getLayoutParams();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
public void drawHorizontal(Canvas c, RecyclerView parent) {
final int top = parent.getPaddingTop();
final int bottom = parent.getHeight() - parent.getPaddingBottom();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
.getLayoutParams();
final int left = child.getRight() + params.rightMargin;
final int right = left + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
@Override
public void getItemOffsets(Rect outRect, int itemPosition, RecyclerView parent) {
if (mOrientation == VERTICAL_LIST) {
outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());
} else {
outRect.set(0, 0, mDivider.getIntrinsicWidth(), 0);
}
}
}
第八步
自定义分割线
在drawable文件夹下面
divider.xml
第九步
为当前主题应用该分割线
在values文件夹中
values/styles.xml