CookbookDetailFragment.java
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package com.naji.xiaotao.cookbook.ui;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import com.naji.xiaotao.R;
import com.naji.xiaotao.cookbook.bean.CookbookDetailEntity;
import com.naji.xiaotao.cookbook.bean.CookbookEntity;
import com.naji.xiaotao.cookbook.listener.CheckListener;
import com.naji.xiaotao.cookbook.adapter.ClassifyDetailAdapter;
import com.naji.xiaotao.cookbook.itemdecoration.ItemHeaderDecoration;
import com.naji.xiaotao.cookbook.listener.RvListener;
import com.naji.xiaotao.cookbook.presenter.SortDetailPresenter;
import com.naji.xiaotao.tangshi.entity.OrderEntity;
import java.util.ArrayList;
import java.util.List;
public class CookbookDetailFragment extends BaseFragment<SortDetailPresenter, String> implements CheckListener {
private RecyclerView mRv;
private ClassifyDetailAdapter mAdapter;
private LinearLayoutManager mManager;
private List<CookbookDetailEntity> mDatas = new ArrayList<>();
private ItemHeaderDecoration mDecoration;
private boolean move = false;
private int mIndex = 0;
private CheckListener checkListener;
@Override
protected int getLayoutId() {
return R.layout.fragment_sort_detail;
}
@Override
protected void initCustomView(View view) {
mRv = (RecyclerView) view.findViewById(R.id.rv);
}
@Override
protected void initListener() {
mRv.addOnScrollListener(new RecyclerViewListener());
}
@Override
protected SortDetailPresenter initPresenter() {
showRightPage(1);
// mManager = new GridLayoutManager(mContext, 3);
// //通过isTitle的标志来判断是否是title
// mManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
// @Override
// public int getSpanSize(int position) {
// return mDatas.get(position).isTitle() ? 3 : 1;
// }
// });
mManager=new LinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL,false);
mRv.setLayoutManager(mManager);
String fromSource="";
if(!TextUtils.isEmpty(getArguments().getString("fromSource"))){
fromSource=getArguments().getString("fromSource");
}
mAdapter = new ClassifyDetailAdapter(mContext, mDatas,getArguments().getString("orderid"),fromSource,new RvListener() {
@Override
public void onItemClick(int id, int position) {
}
});
mRv.setAdapter(mAdapter);
return new SortDetailPresenter();
}
public void initData(ArrayList<CookbookEntity> clists) {
mDatas.clear();
for (int i=0;i<clists.size();i++){
CookbookDetailEntity head=new CookbookDetailEntity();
head.setTitleName(clists.get(i).getClass_name());
head.setTitle(true);
head.setTag(String.valueOf(i));
mDatas.add(head);
for(int j=0;j<clists.get(i).getCookbooklist().get(0).size();j++){
CookbookDetailEntity content=clists.get(i).getCookbooklist().get(0).get(j);
content.setTag(String.valueOf(i));
content.setTitleName(clists.get(i).getClass_name());
mDatas.add(content);
}
}
if(mDecoration==null){
mDecoration = new ItemHeaderDecoration(mContext, mDatas);
mRv.addItemDecoration(mDecoration);
mDecoration.setCheckListener(checkListener);
}
mDecoration.setData(mDatas);
mAdapter.notifyDataSetChanged();
}
@Override
public void onClick(View v) {
}
@Override
public void refreshView(int code, String data) {
}
public void setData(int n) {
mIndex = n;
mRv.stopScroll();
smoothMoveToPosition(n);
}
@Override
protected void getData() {
}
public void setListener(CheckListener listener) {
this.checkListener = listener;
}
private void smoothMoveToPosition(int n) {
int firstItem = mManager.findFirstVisibleItemPosition();
int lastItem = mManager.findLastVisibleItemPosition();
Log.d("first--->", String.valueOf(firstItem));
Log.d("last--->", String.valueOf(lastItem));
if (n <= firstItem) {
mRv.scrollToPosition(n);
} else if (n <= lastItem) {
Log.d("pos---->", String.valueOf(n) + "VS" + firstItem);
int top = mRv.getChildAt(n - firstItem).getTop();
Log.d("top---->", String.valueOf(top));
mRv.scrollBy(0, top);
} else {
mRv.scrollToPosition(n);
move = true;
}
}
@Override
public void check(int position, boolean isScroll) {
checkListener.check(position, isScroll);
}
private class RecyclerViewListener extends RecyclerView.OnScrollListener {
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
super.onScrollStateChanged(recyclerView, newState);
if (move && newState == RecyclerView.SCROLL_STATE_IDLE) {
move = false;
int n = mIndex - mManager.findFirstVisibleItemPosition();
Log.d("n---->", String.valueOf(n));
if (0 <= n && n < mRv.getChildCount()) {
int top = mRv.getChildAt(n).getTop();
Log.d("top--->", String.valueOf(top));
mRv.smoothScrollBy(0, top);
}
}
}
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
if (move) {
move = false;
int n = mIndex - mManager.findFirstVisibleItemPosition();
if (0 <= n && n < mRv.getChildCount()) {
int top = mRv.getChildAt(n).getTop();
mRv.scrollBy(0, top);
}
}
}
}
}