package com.gan.myrecycleview; import android.content.Context;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView; import com.gan.myrecycleview.wrapper.LoadMoreWrapper; import java.util.List; /**
* 用途: 自定义recycleview实现下拉刷新和自动加载
* 创建者:ganyufei
* 时间: 2017/2/8
*/ public class MyRecycleView<T> extends LinearLayout { private RecyclerView recyclerView;
private SwipeRefreshLayout swipeRfl;
// private LinearLayoutManager layoutManager;
private SwipeRefreshLayout.OnRefreshListener mRefreshListener;
private CommonAdapter mAdapter;
private RefreshLoadMoreListener mRefreshLoadMoreListner;//下拉和加载更多监听
private ItemClickListener itemClickListener;//item点击监听
private LinearLayout mExceptView;
private LinearLayout mLoadingView;
private boolean hasMore = false;//是否还有更多数据加载
private boolean canMore = true;//是否可以加载更多
private boolean isCanRefresh = true;//是否可以刷新更多
private boolean isRefresh = false;//正在刷新
private boolean isLoadMore = false;//正在加载更多
private LoadMoreWrapper mLoadMoreWrapper;//为了实现加载更多footview private ImageView exceptIv;//异常图片控件
private TextView exceptTv;//异常内容文本控件 private ProgressBar loadingIv;//正在加载图片控件
private TextView loadingTv;//正在加载文本控件
private RecyclerView.ItemAnimator itemAnimator; public MyRecycleView(Context context) {
super(context);
} public MyRecycleView(Context context, AttributeSet attrs) {
super(context, attrs);
LinearLayout rootLl = new LinearLayout(context);
rootLl.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
mLoadingView = initLoadingView(context);
mLoadingView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
mExceptView = initExceptionView(context);
mExceptView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
mExceptView.setVisibility(View.GONE);
swipeRfl = new SwipeRefreshLayout(context);
swipeRfl.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
swipeRfl.setColorSchemeResources(android.R.color.holo_blue_light,
android.R.color.holo_red_light, android.R.color.holo_orange_light);
FrameLayout bootLl = new FrameLayout(context);
bootLl.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT));
recyclerView = new RecyclerView(context);
recyclerView.setVerticalScrollBarEnabled(true);
recyclerView.setHorizontalScrollBarEnabled(true);
if (itemAnimator!=null)
recyclerView.setItemAnimator(itemAnimator);
else {
recyclerView.setItemAnimator(new DefaultItemAnimator());
}
recyclerView.setLayoutParams(new LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
bootLl.addView(mLoadingView);
bootLl.addView(recyclerView);
bootLl.addView(mExceptView);
swipeRfl.addView(bootLl);
rootLl.addView(swipeRfl);
this.addView(rootLl);
/**
* 下拉至顶部刷新监听
*/
mRefreshListener = new SwipeRefreshLayout.OnRefreshListener() { @Override
public void onRefresh() {
if (!isRefresh && !isLoadMore) {
isRefresh = true;
refresh();
}
}
};
swipeRfl.setOnRefreshListener(mRefreshListener);
recyclerView.setHasFixedSize(true);//不是瀑布流这个将可以优化性能
} public MyRecycleView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
} /**
* 错误提示界面初始化
*
* @param context
* @return
*/
private LinearLayout initExceptionView(Context context) {
LinearLayout rootLl = (LinearLayout) View.inflate(context, R.layout.mycycleview_err, null);
exceptIv = (ImageView) rootLl.findViewById(R.id.myrecle_img);
exceptIv.setOnClickListener(new OnClickListener() { @Override
public void onClick(View v) {
// 点击图片刷新
if (!isRefresh) {
swipeRfl.setRefreshing(true);
isRefresh = true;
refresh();
}
}
});
exceptTv = (TextView) rootLl.findViewById(R.id.myrecle_msg);
return rootLl;
} /**
* 初始化正在加载页面
*
* @param context
* @return
*/
private LinearLayout initLoadingView(Context context) {
LinearLayout rootLl = (LinearLayout) View.inflate(context, R.layout.mycycleview_firstload, null);
loadingIv = (ProgressBar) rootLl.findViewById(R.id.myrecle_load_progress);
loadingTv = (TextView) rootLl.findViewById(R.id.myrecle_load_msg);
return rootLl;
} /**
* drawableId 错误提示图片
* exceptStr 错误提示语
*/
public void customExceptView(int drawableId, String exceptStr) {
recyclerView.setVisibility(View.INVISIBLE);
mExceptView.setVisibility(View.VISIBLE);
mLoadingView.setVisibility(View.INVISIBLE);
exceptIv.setImageResource(drawableId);
exceptTv.setText(exceptStr);
swipeRfl.setEnabled(false);//出现错误之后，将设定无法下拉，运用点击图片进行刷新
} /**
* drawableId 正在加载提示图片
* exceptStr 正在加载提示语
*/
public void customLoadView(String exceptStr) {
recyclerView.setVisibility(View.INVISIBLE);
mLoadingView.setVisibility(View.VISIBLE);
mExceptView.setVisibility(View.INVISIBLE);
loadingTv.setText(exceptStr);
swipeRfl.setEnabled(false);
} public void scrollToTop() {
recyclerView.scrollToPosition(0);
} public void setAdapter(CommonAdapter adapter) {
if (adapter != null) {
this.mAdapter = adapter;
if (canMore) {//是否可以加载更多
mLoadMoreWrapper = new LoadMoreWrapper(mAdapter);
mLoadMoreWrapper.setLoadMoreView(R.layout.mycycle_foot_default_loading);
mLoadMoreWrapper.setOnLoadMoreListener(new LoadMoreWrapper.OnLoadMoreListener() {
@Override
public void onLoadMoreRequested() {
/**
* 无论水平还是垂直
*/
if (hasMore && !isLoadMore && !isRefresh && canMore) {
isLoadMore = true;
loadMore();
}
}
}); recyclerView.setAdapter(mLoadMoreWrapper);
} else {
recyclerView.setAdapter(mAdapter);
} mAdapter.setOnItemClickListener(new CommonAdapter.OnItemClickListener() {
@Override
public void onItemClick(View view, RecyclerView.ViewHolder holder, int position) {
if (itemClickListener != null)
itemClickListener.onClick(view, holder, position);
} @Override
public boolean onItemLongClick(View view, RecyclerView.ViewHolder holder, int position) {
if (itemClickListener != null)
itemClickListener.onLongClick(view, holder, position);
return true;
}
});
}
} private void setHasMore(boolean enable) {
this.hasMore = enable;
if (mLoadMoreWrapper!=null)
mLoadMoreWrapper.setFootCanLoad(hasMore);
} /* public boolean isHasMore() {
return hasMore;
} public boolean isCanMore() {
return canMore;
}*/ public boolean isCanMore() {
return canMore;
} public void setCanMore(boolean canMore) {
this.canMore = canMore;
} public void setPullRefreshEnable(boolean enable) {
isCanRefresh = enable;
swipeRfl.setEnabled(enable);
} public boolean getPullRefreshEnable() {
return swipeRfl.isEnabled();
} public void loadMore() {
if (mRefreshLoadMoreListner != null && hasMore && canMore) {
mRefreshLoadMoreListner.onLoadMore();
}
} /**
* 加载更多完毕,为防止频繁网络请求,isLoadMore为false才可再次请求更多数据
*/
public void setLoadMoreCompleted() {
isLoadMore = false;
} public void stopRefresh() {
isRefresh = false;
swipeRfl.setRefreshing(false);
if (isCanRefresh) swipeRfl.setEnabled(true);
} public void setRefreshLoadMoreListener(RefreshLoadMoreListener listener) {
mRefreshLoadMoreListner = listener;
} public void setOnItemClickListener(ItemClickListener listener) {
itemClickListener = listener;
} /**
* 刷新动作，用于请求网络数据
*/
public void refresh() {
swipeRfl.setRefreshing(true);
mExceptView.setVisibility(View.INVISIBLE);
if (mRefreshLoadMoreListner != null) {
mRefreshLoadMoreListner.onRefresh();
}
} public void notifyDataSetChanged() {
//firstload布局只能出现一次，所以这里判断如果显示，就隐藏
if (mLoadingView.getVisibility() == View.VISIBLE) {
recyclerView.setVisibility(View.VISIBLE);
mExceptView.setVisibility(View.INVISIBLE);
mLoadingView.setVisibility(View.INVISIBLE);
}
if (mLoadMoreWrapper != null)
mLoadMoreWrapper.notifyDataSetChanged();
else
mAdapter.notifyDataSetChanged();
} /**
* 第一次自动加载，不与无数据用同样布局是因为，这里要有动画效果，所以单独一个布局
*/
public void firstLoadingView(String exceptStr) { customLoadView(exceptStr);
isRefresh = true;
if (mRefreshLoadMoreListner != null) {
mRefreshLoadMoreListner.onRefresh();
}
} /**
* 获取刷新数据以后的处理
* @param actAllList
* @param tmp
* @param drawableId 当没有数据时提示图片
* @param msg 没有数据时提示语
*/
public void setDateRefresh(List<T> actAllList, List<T> tmp,int drawableId,String msg) {
actAllList.clear();
stopRefresh();//如果刷新则停止刷新
if (tmp==null || tmp.isEmpty()) {
customExceptView(drawableId, msg);
setHasMore(false);
} else {
recyclerView.setVisibility(View.VISIBLE);
setHasMore(true);
actAllList.addAll(tmp);
}
notifyDataSetChanged();//刷新完毕
} /**
* 获取加载更多数据的处理
*
* @param actAllList
* @param tmpLoadmore
*/
public void setDateLoadMore(List<T> actAllList, List<T> tmpLoadmore) {
if (tmpLoadmore==null|| tmpLoadmore.isEmpty()) {
setHasMore(false);//如果没有更多数据则设置不可加载更多
setLoadMoreCompleted();//加载完毕
stopRefresh();//如果刷新则停止刷新
return;
}
setHasMore(true);
actAllList.addAll(tmpLoadmore);
setLoadMoreCompleted();//加载完毕
notifyDataSetChanged();//加载更多完毕
stopRefresh();//如果刷新则停止刷新
} /**
* 刷新数据失败
*
* @param darwable
* @param msg
*/
public void setDateRefreshErr(int darwable, String msg) {
stopRefresh();//如果刷新则停止刷新
customExceptView(darwable, msg);
} public void setLayoutManager(RecyclerView.LayoutManager layoutManager) {
recyclerView.setLayoutManager(layoutManager);
} public void addItemDecoration(RecyclerView.ItemDecoration div) {
recyclerView.addItemDecoration(div);
} /**
* 设置item动画效果
* @param defaultItemAnimator
*/
public void setItemAnimator(RecyclerView.ItemAnimator defaultItemAnimator) {
this.itemAnimator=defaultItemAnimator;
recyclerView.setItemAnimator(itemAnimator);
} /**
* 下拉刷新和自动加载监听
*/
public interface RefreshLoadMoreListener {
public void onRefresh(); public void onLoadMore();
} public interface ItemClickListener {
public void onClick(View view, RecyclerView.ViewHolder holder, int position); public void onLongClick(View view, RecyclerView.ViewHolder holder, int position);
} }