package com.handmark.pulltorefresh.library.extras;
/**
* Created by Administrator on 2018/8/22 0022.
*/
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;
import android.view.View;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
/**
* Created by Administrator on 2017/11/7.
* pulltorefresh扩展recycleview;
* 实现recycle的下拉刷新
*
*/
public class PullToRefreshRecycleView extends PullToRefreshBase<RecyclerView> {
private RecyclerView mRecyclerView;
public PullToRefreshRecycleView(Context context) {
super(context);
}
public PullToRefreshRecycleView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public PullToRefreshRecycleView(Context context, PullToRefreshBase.Mode mode) {
super(context, mode);
}
public PullToRefreshRecycleView(Context context, Mode mode, AnimationStyle style) {
super(context, mode, style);
}
@Override
public final Orientation getPullToRefreshScrollDirection() {
return Orientation.VERTICAL;
}
@Override
protected RecyclerView createRefreshableView(Context context,
AttributeSet attrs) {
mRecyclerView = new RecyclerView(context, attrs);
return mRecyclerView;
}
@Override
protected boolean isReadyForPullStart() {
return isFirstItemVisible();
}
@Override
protected boolean isReadyForPullEnd() {
return isLastItemVisible();
}
/**
* @Description: 判断第一个条目是否完全可见
*
* @return boolean:
* @version 1.0
* @date 2015-9-23
* @Author zhou.wenkai
*/
private boolean isFirstItemVisible() {
final RecyclerView.Adapter<?> adapter = getRefreshableView().getAdapter();
// 如果未设置Adapter或者Adapter没有数据可以下拉刷新
if (null == adapter || adapter.getItemCount() == 0) {
return true;
} else {
// 第一个条目完全展示,可以刷新
if (getFirstVisiblePosition() == 0) {
return mRecyclerView.getChildAt(0).getTop() >= mRecyclerView
.getTop();
}
}
return false;
}
/**
* @Description: 获取第一个可见子View的位置下标
*
* @return int: 位置
* @version 1.0
* @date 2015-9-23
* @Author zhou.wenkai
*/
private int getFirstVisiblePosition() {
View firstVisibleChild = mRecyclerView.getChildAt(0);
return firstVisibleChild != null ? mRecyclerView
.getChildAdapterPosition(firstVisibleChild) : -1;
}
/**
* @Description: 判断最后一个条目是否完全可见
*
* @return boolean:
* @version 1.0
* @date 2015-9-23
* @Author zhou.wenkai
*/
private boolean isLastItemVisible() {
final RecyclerView.Adapter<?> adapter = getRefreshableView().getAdapter();
// 如果未设置Adapter或者Adapter没有数据可以上拉刷新
if (null == adapter || adapter.getItemCount() == 0) {
return true;
} else {
// 最后一个条目View完全展示,可以刷新
int lastVisiblePosition = getLastVisiblePosition();
if(lastVisiblePosition >= mRecyclerView.getAdapter().getItemCount()-1) {
return mRecyclerView.getChildAt(
mRecyclerView.getChildCount() - 1).getBottom() <= mRecyclerView
.getBottom();
}
}
return false;
}
/**
* @Description: 获取最后一个可见子View的位置下标
*
* @return int: 位置
* @version 1.0
* @date 2015-9-23
* @Author zhou.wenkai
*/
private int getLastVisiblePosition() {
View lastVisibleChild = mRecyclerView.getChildAt(mRecyclerView
.getChildCount() - 1);
return lastVisibleChild != null ? mRecyclerView
.getChildAdapterPosition(lastVisibleChild) : -1;
}
}
添加依赖然后
使用自定义
布局
<com.handmark.pulltorefresh.library.extras.PullToRefreshRecycleView
xmlns:ptr="http://schemas.android.com/apk/res-auto"
android:id="@+id/recycle_view_follow1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
ptr:ptrHeaderBackground="#fff"
ptr:ptrHeaderTextColor="#999"
ptr:ptrMode="both"
/>
代码
package com.example.administrator.kuaisoapp.fragment;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.example.administrator.kuaisoapp.R;
import com.example.administrator.kuaisoapp.activity.PlayActivity;
import com.example.administrator.kuaisoapp.adapter.FollowAdapter;
import com.example.administrator.kuaisoapp.gson.FollowGson;
import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.extras.PullToRefreshRecycleView;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class FollowFragment extends Fragment {
private PullToRefreshRecycleView recycleViewFollow;
Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
if (msg.what == 222) {
mFollowAdapter.updateAdapter(mFollowGson);
}
}
};
View mView;
private FollowGson mFollowGson;
private FollowAdapter mFollowAdapter;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mView=View.inflate(getContext(),R.layout.fragment_follow,null);
init(mView);
initData();
}
private void init(View view) {
recycleViewFollow = (PullToRefreshRecycleView) view.findViewById(R.id.recycle_view_follow1);
final RecyclerView refreshableView = recycleViewFollow.getRefreshableView();
StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL);
layoutManager.setReverseLayout(false);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
refreshableView.setLayoutManager(layoutManager);
// 设置item动画
refreshableView.setItemAnimator(new DefaultItemAnimator());
mFollowAdapter = new FollowAdapter(getActivity(),mFollowGson);
//2.设置adapter
refreshableView.setAdapter(mFollowAdapter);
mFollowAdapter.setInterface(new FollowAdapter.IReflashListner() {
@Override
public void startActivity(int pos) {
Intent intent = new Intent(getActivity(), PlayActivity.class);
intent.putExtra("url",mFollowGson.getData().get(pos).getVideoUrls().get(1));
intent.putExtra("name",mFollowGson.getData().get(pos).getPosterScreenName());
intent.putExtra("text",mFollowGson.getData().get(pos).getDescription());
intent.putExtra("viewCount",mFollowGson.getData().get(pos).getViewCount());
intent.putExtra("lickCount",mFollowGson.getData().get(pos).getLikeCount());
intent.putExtra("publisdata",mFollowGson.getData().get(pos).getPublishDateStr());
intent.putExtra("comment",mFollowGson.getData().get(pos).getCommentCount());
intent.putExtra("id",mFollowGson.getData().get(pos).getId());
intent.putExtra("image",mFollowGson.getData().get(pos).getCoverUrl());
getActivity().startActivity(intent);
}
});
recycleViewFollow.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<RecyclerView>() {
@Override
public void onPullDownToRefresh(PullToRefreshBase<RecyclerView> refreshView) {
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
initData();
recycleViewFollow.onRefreshComplete();
}
}, 500);
}
@Override
public void onPullUpToRefresh(PullToRefreshBase<RecyclerView> refreshView) {
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
initData();
recycleViewFollow.onRefreshComplete();
}
}, 500);
}
});
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
container = (ViewGroup) mView.getParent();
if(container!=null){
container.removeAllViewsInLayout();
}
return mView;
}
public void initData(){
new Thread(){
@Override
public void run() {
try {
URL url = new URL("http://120.76.205.241:8000/video/gifshow?pageToken=0&apikey=tZ1HPx0MRcC6njHLZXLhzseYk8DpRx6tMLvzDa7gYRE0mLGC5stHpuZE2Svt63ed");
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setConnectTimeout(3000);
urlConnection.connect();
int code = urlConnection.getResponseCode();
if(code==200){
InputStream inputStream = urlConnection.getInputStream();
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
byte[]data=new byte[1024];
int lenth=-1;
while ((lenth=inputStream.read(data))!=-1){
byteArrayOutputStream.write(data,0,lenth);
byteArrayOutputStream.flush();
}
byteArrayOutputStream.close();
inputStream.close();
String s = byteArrayOutputStream.toString();
Gson gson = new Gson();
mFollowGson = gson.fromJson(s, FollowGson.class);
mHandler.sendEmptyMessage(222);
}else{
}
} catch (Exception e) {
e.printStackTrace();
}
}
}.start();
}
}
将重写的方法修改为
@Override
protected void onRestoreInstanceState(Parcelable state) {
try {
super.onRestoreInstanceState(state);
}catch (Exception e) {}
state=null;
}
效果图
image.png
