Demo下载地址:https://github.com/HRobbie/RecycleViewDemo
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
</android.support.v7.widget.RecyclerView>
recycler_view = (RecyclerView)findViewById(R.id.recycler_view);
//设置为垂直的样式
recycler_view.setLayoutManager(new LinearLayoutManager(mContext));
//使用的是系统默认的分割线
recycler_view.addItemDecoration(new DividerItemDecoration(mContext, DividerItemDecoration.VERTICAL));
//设置适配器
recycler_view.setAdapter(adapter=new BaseAdapter(mContext,mData));
//设置默认动画
recycler_view.setItemAnimator(new DefaultItemAnimator());
public class BaseAdapter extends RecyclerView.Adapter<BaseAdapter.MyViewHolder> {
private Context mContext;
private List<String> mData;
//自定义点击事件和长按事件
private OnItemClickListener mOnItemClickListener;
public void setOnItemClickListener(OnItemClickListener mOnItemClickListener)
{
this.mOnItemClickListener = mOnItemClickListener;
}
//构造器
public BaseAdapter(Context mContext, List<String> mData) {
this.mContext = mContext;
this.mData = mData;
}
//加载布局
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
MyViewHolder holder = new MyViewHolder(LayoutInflater.from(mContext).inflate(R.layout.item_base, parent, false));
return holder;
}
//为布局加载数据
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
holder.tv_text.setText(mData.get(position));
setClickListener(holder,position);
}
//设置点击事件
private void setClickListener(final MyViewHolder holder, int position) {
if(mOnItemClickListener!=null){
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
int pos = holder.getLayoutPosition();
mOnItemClickListener.onItemClick(holder.itemView, pos);
}
});
}
holder.itemView.setOnLongClickListener(new View.OnLongClickListener()
{
@Override
public boolean onLongClick(View v)
{
int pos = holder.getLayoutPosition();
mOnItemClickListener.onItemLongClick(holder.itemView, pos);
return true;//返回true可以屏蔽点击监听的响应
}
});
}
//总共多少个项
@Override
public int getItemCount() {
return mData.size();
}
//初始化布局信息
class MyViewHolder extends RecyclerView.ViewHolder{
TextView tv_text;
public MyViewHolder(View itemView) {
super(itemView);
tv_text = (TextView) itemView.findViewById(R.id.tv_text);
}
}
//添加
public void addData(int position) {
mData.add(position, "Insert One");
notifyItemInserted(position);
}
//删除
public void removeData(int position) {
mData.remove(position);
notifyItemRemoved(position);
}
}
public interface OnItemClickListener {
void onItemClick(View view, int position);
void onItemLongClick(View view , int position);
}
adapter.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
view.startAnimation(animation);
Toast.makeText(mContext, position + " click",
Toast.LENGTH_SHORT).show();
}
@Override
public void onItemLongClick(View view, int position) {
view.startAnimation(animation);
Toast.makeText(mContext, position + " long click",
Toast.LENGTH_SHORT).show();
}
});
//设置为水平网格样式
recycler_view.setLayoutManager(new StaggeredGridLayoutManager(4,StaggeredGridLayoutManager.HORIZONTAL));//如果需要垂直,改为垂直即可
使用的是自定义的网格分割线
recycler_view.addItemDecoration(new DividerGridItemDecoration(mContext));
public class DividerGridItemDecoration extends RecyclerView.ItemDecoration{
private static final int[] ATTRS = new int[] { android.R.attr.listDivider };
private Drawable mDivider;
public DividerGridItemDecoration(Context context)
{
final TypedArray a = context.obtainStyledAttributes(ATTRS);
mDivider = a.getDrawable(0);
a.recycle();
}
@Override
public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state)
{
drawHorizontal(c, parent);
drawVertical(c, parent);
}
private int getSpanCount(RecyclerView parent)
{
// 列数
int spanCount = -1;
RecyclerView.LayoutManager layoutManager = parent.getLayoutManager();
if (layoutManager instanceof GridLayoutManager)
{
spanCount = ((GridLayoutManager) layoutManager).getSpanCount();
} else if (layoutManager instanceof StaggeredGridLayoutManager)
{
spanCount = ((StaggeredGridLayoutManager) layoutManager)
.getSpanCount();
}
return spanCount;
}
public void drawHorizontal(Canvas c, RecyclerView parent)
{
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.getLeft() - params.leftMargin;
final int right = child.getRight() + params.rightMargin
+ mDivider.getIntrinsicWidth();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
public void drawVertical(Canvas c, RecyclerView parent)
{
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 top = child.getTop() - params.topMargin;
final int bottom = child.getBottom() + params.bottomMargin;
final int left = child.getRight() + params.rightMargin;
final int right = left + mDivider.getIntrinsicWidth();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
private boolean isLastColum(RecyclerView parent, int pos, int spanCount,
int childCount)
{
RecyclerView.LayoutManager layoutManager = parent.getLayoutManager();
if (layoutManager instanceof GridLayoutManager)
{
if ((pos + 1) % spanCount == 0)// 如果是最后一列,则不需要绘制右边
{
return true;
}
} else if (layoutManager instanceof StaggeredGridLayoutManager)
{
int orientation = ((StaggeredGridLayoutManager) layoutManager)
.getOrientation();
if (orientation == StaggeredGridLayoutManager.VERTICAL)
{
if ((pos + 1) % spanCount == 0)// 如果是最后一列,则不需要绘制右边
{
return true;
}
} else
{
childCount = childCount - childCount % spanCount;
if (pos >= childCount)// 如果是最后一列,则不需要绘制右边
return true;
}
}
return false;
}
private boolean isLastRaw(RecyclerView parent, int pos, int spanCount,
int childCount)
{
RecyclerView.LayoutManager layoutManager = parent.getLayoutManager();
if (layoutManager instanceof GridLayoutManager)
{
childCount = childCount - childCount % spanCount;
if (pos >= childCount)// 如果是最后一行,则不需要绘制底部
return true;
} else if (layoutManager instanceof StaggeredGridLayoutManager)
{
int orientation = ((StaggeredGridLayoutManager) layoutManager)
.getOrientation();
// StaggeredGridLayoutManager 且纵向滚动
if (orientation == StaggeredGridLayoutManager.VERTICAL)
{
childCount = childCount - childCount % spanCount;
// 如果是最后一行,则不需要绘制底部
if (pos >= childCount)
return true;
} else
// StaggeredGridLayoutManager 且横向滚动
{
// 如果是最后一行,则不需要绘制底部
if ((pos + 1) % spanCount == 0)
{
return true;
}
}
}
return false;
}
@Override
public void getItemOffsets(Rect outRect, int itemPosition,
RecyclerView parent)
{
int spanCount = getSpanCount(parent);
int childCount = parent.getAdapter().getItemCount();
if (isLastRaw(parent, itemPosition, spanCount, childCount))// 如果是最后一行,则不需要绘制底部
{
outRect.set(0, 0, mDivider.getIntrinsicWidth(), 0);
} else if (isLastColum(parent, itemPosition, spanCount, childCount))// 如果是最后一列,则不需要绘制右边
{
outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());
} else
{
outRect.set(0, 0, mDivider.getIntrinsicWidth(),
mDivider.getIntrinsicHeight());
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<com.jcodecraeer.xrecyclerview.XRecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
</com.jcodecraeer.xrecyclerview.XRecyclerView>
recycler_view.setLoadingListener(new XRecyclerView.LoadingListener() {
@Override
public void onRefresh() {
refresh();
}
@Override
public void onLoadMore() {
loadMore();
}
});
//设置为垂直3列
recycler_view.setLayoutManager(new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL));
item间隔16
recycler_view.addItemDecoration(new SpacesItemDecoration(16));
public class SpacesItemDecoration extends RecyclerView.ItemDecoration {
private int space;
public SpacesItemDecoration(int space) {
this.space=space;
}
@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
outRect.left=space;
outRect.right=space;
outRect.bottom=space;
if(parent.getChildAdapterPosition(view)==0){
outRect.top=space;
}
}
}
adapter.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
view.startAnimation(animation);
Toast.makeText(mContext, position + " 添加A",
Toast.LENGTH_SHORT).show();
adapter.addData(0);
}
@Override
public void onItemLongClick(View view, int position) {
view.startAnimation(animation);
Toast.makeText(mContext, position + " 删除B",
Toast.LENGTH_SHORT).show();
adapter.removeData(2);
}
});
public class DifferentItemAdapter extends RecyclerView.Adapter {
private Context mContext;
private List<String> mData;
private static final int CASE1=1;
private static final int CASE2=2;
public DifferentItemAdapter(Context mContext, List<String> mData) {
this.mContext = mContext;
this.mData = mData;
}
//自定义点击事件和长按事件
private OnItemClickListener mOnItemClickListener;
public void setOnItemClickListener(OnItemClickListener mOnItemClickListener)
{
this.mOnItemClickListener = mOnItemClickListener;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch (viewType){
case CASE1:
return new MyViewHolder(LayoutInflater.from(mContext).inflate(R.layout.item_base, parent, false));
case CASE2:
return new DifferentHolder(LayoutInflater.from(mContext).inflate(R.layout.item_different,parent,false));
}
return null;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
if(position%2==0){
DifferentHolder holder1= (DifferentHolder) holder;
holder1.tv_text.setText(mData.get(position));
}else{
MyViewHolder holder2= (MyViewHolder) holder;
holder2.tv_text.setText(mData.get(position));
}
setClickListener(holder,position);
}
@Override
public int getItemCount() {
return mData.size();
}
//这个非常重要,根据这个选择不同的布局
@Override
public int getItemViewType(int position) {
if(position%2==0){
return CASE2;
}else{
return CASE1;
}
}
//初始化布局信息
class MyViewHolder extends RecyclerView.ViewHolder{
TextView tv_text;
public MyViewHolder(View itemView) {
super(itemView);
tv_text = (TextView) itemView.findViewById(R.id.tv_text);
}
}
class DifferentHolder extends RecyclerView.ViewHolder{
TextView tv_text;
public DifferentHolder(View itemView) {
super(itemView);
tv_text = (TextView) itemView.findViewById(R.id.tv_text);
}
}
//设置点击事件
private void setClickListener(final RecyclerView.ViewHolder holder, int position) {
if(mOnItemClickListener!=null){
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
int pos = holder.getLayoutPosition();
mOnItemClickListener.onItemClick(holder.itemView, pos);
}
});
}
holder.itemView.setOnLongClickListener(new View.OnLongClickListener()
{
@Override
public boolean onLongClick(View v)
{
int pos = holder.getLayoutPosition();
mOnItemClickListener.onItemLongClick(holder.itemView, pos);
return true;//返回true可以屏蔽点击监听的响应
}
});
}
}`