android实战之recycleview列表展示加载数据的完整功能代码

效果图

XML?

<androidx.coordinatorlayout.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    android:theme="@style/customTheme">
    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/teal_900"
        app:navigationIcon="@drawable/abc_vector_test"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="消息"
            android:textColor="@color/white"
            android:textSize="22sp" />
    </androidx.appcompat.widget.Toolbar>

    <LinearLayout
        android:id="@+id/layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingBottom="@dimen/dp_20"
        android:orientation="vertical"
        android:layout_marginTop="?attr/actionBarSize">

        <com.duoduomi.app.widget.HomeTabLayout
            android:id="@+id/mTableLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabIndicator="@drawable/shape_indicator"
            app:tabRippleColor="#00000000"
            app:tabMaxWidth="200dp"
            app:tabMinWidth="100dp"
            app:tabTextColor="#999"
            app:tabSelectedTextColor="@color/black"
            app:tabIndicatorColor="@color/teal_900"
            app:tabTextAppearance="@style/myTabTextAppearance"
            />
        <com.scwang.smartrefresh.layout.SmartRefreshLayout
            android:id="@+id/smart_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingBottom="@dimen/dp_50"
            android:orientation="vertical"
            >
            <com.scwang.smartrefresh.layout.header.ClassicsHeader
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />
            <androidx.recyclerview.widget.RecyclerView
                android:id="@+id/recyclerView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                />
            <com.scwang.smartrefresh.layout.footer.ClassicsFooter
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:srlClassicsSpinnerStyle="Translate" />
        </com.scwang.smartrefresh.layout.SmartRefreshLayout>

    </LinearLayout>

</androidx.coordinatorlayout.widget.CoordinatorLayout>

Bean模型数据

public class MessageBean {
    public Long messageId;
    public String title;
    public String content;
    public String isType;
    public Boolean isRead;
    public Long memberId;

    public void setMessageId(Long messageId){
        this.memberId=messageId;
    }
    public Long getMessageId(){return messageId;}

    public void setTitle(String title){
        this.title=title;
    }
    public String getTitle(){return title;}

    public void setContent(String content){
        this.content=content;
    }
    public String getContent(){return content;}

    public void setIsType(String isType){
        this.isType=isType;
    }
    public String getIsType(){return isType;}

    public void setIsRead(Boolean isRead){
        this.isRead=isRead;
    }
    public Boolean getIsRead(){return isRead;}

    public void setMemberId(Long memberId){
        this.memberId=memberId;
    }
    public Long getMemberId(){return memberId;}

}

item项布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="15dp">
    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="标题"
        android:textColor="@android:color/black"
        android:textAlignment="textStart"
        android:textSize="16sp" />
</LinearLayout>

适配器

public class ItemMessageAdapter extends BaseQuickAdapter<MessageBean, BaseViewHolder> {
    private Context mContext;
    List<MessageBean> list;
    //选中的列表项索引值
    public ItemMessageAdapter(int layoutResId, List<MessageBean> list) {
        super(layoutResId,list);
        this.list=list;
    }

    @Override
    protected void convert(@NonNull BaseViewHolder holder, MessageBean item) {
        //holder.setText(R.id.text,item);
        holder.setText(R.id.text,item.getTitle());
    }



}

Fragement?功能

public class UserMessageFragment extends BaseFragment {
    private static final String TAG="UserMessageFragment";
    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;
    private String[] mTitles = {"系统消息", "奖惩通知","其他消息"};
    private CommonPopupWindow popupWindow;
    public RecyclerView mRecyclerView;
    private Integer currentPage=1;
    private Boolean hasMoreData=true;
    private List<MessageBean> messageBeanList=new ArrayList<>();
    private ItemMessageAdapter itemMessageAdapter;
    private SmartRefreshLayout mRefreshLayout;
    private Integer tabId=0;
    private FragmentUserMessageBinding binding;

    public UserMessageFragment() {
        // Required empty public constructor
    }

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment UserMessageFragment.
     */
    // TODO: Rename and change types and number of parameters
    public static UserMessageFragment newInstance(String param1, String param2) {
        UserMessageFragment fragment = new UserMessageFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public int getLayoutResID() {
        return R.layout.fragment_user_message;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        binding=FragmentUserMessageBinding.inflate(getLayoutInflater());

        return binding.getRoot();
    }

    @Override
    public void onActivityCreated(@NonNull Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        ImmersionBar.with(this).statusBarColor(R.color.teal_900).statusBarDarkFont(true).init();
        // Set the status bar color to transparent
        initFragement();
        initTabView();
        initLayout();

    }

    public void initFragement() {
        binding.toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // 处理返回事件，通常是回到上一个Fragment
                mActivity.onBackPressed();
            }
        });
        //点击详情演示
       
    }

    public void initLayout(){
        mRecyclerView=binding.recyclerView;
        mRefreshLayout=binding.smartLayout;

        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(mContext);
        linearLayoutManager.setOrientation(RecyclerView.VERTICAL);
        mRecyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL));
        mRecyclerView.setLayoutManager(linearLayoutManager);
        itemMessageAdapter=new ItemMessageAdapter(R.layout.item_merch_rule,messageBeanList);
        getData();
        mRecyclerView.setAdapter(itemMessageAdapter);
        loadData();
    }

    public void loadData(){

        //下拉刷新
        mRefreshLayout.setOnRefreshListener(new OnRefreshListener() {
            @Override
            public void onRefresh(@NonNull RefreshLayout refreshLayout) {
                currentPage = 1;
                hasMoreData=true;
                mRefreshLayout.setNoMoreData(false);
                getData();
                itemMessageAdapter.notifyDataSetChanged();
                refreshLayout.finishRefresh(500);
            }
        }).setOnLoadMoreListener(new OnLoadMoreListener() {
            @Override
            public void onLoadMore(@NonNull RefreshLayout refreshLayout) {
                if (hasMoreData) { // 假设 hasMoreData 是你的数据是否还有更多的标志
                    currentPage++;
                    getData();
                    itemMessageAdapter.notifyDataSetChanged();
                    refreshLayout.finishLoadMore(500);
                } else {
                    refreshLayout.finishLoadMoreWithNoMoreData(); // 当没有更多数据时调用此方法
                }
            }
        });

        itemMessageAdapter.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(@NonNull BaseQuickAdapter<?, ?> adapter, @NonNull View view, int position) {
                openItem(view,position);
            }
        });

    }

    public void getData(){
        if(currentPage==1){
            //hasMoreData=true;
            messageBeanList.clear();
            mRefreshLayout.setNoMoreData(false);
        }
        if(currentPage>5){
            //binding.smartLayout.setNoMoreData(true);
            hasMoreData=false;
        }
        //当前页
        for(int i=0;i<10;i++){
            //list.add("标题"+i+"-"+page);
            MessageBean userMessageBean=new MessageBean();
            userMessageBean.setMessageId((long) (i+1));
            userMessageBean.setTitle("标题"+i+"页数"+currentPage+"分类"+tabId);
            userMessageBean.setContent("内容"+i);
            messageBeanList.add(userMessageBean);
        }
    }

    private void initTabView() {
        List<String> titles = Arrays.asList(mTitles);
        HomeTabLayout tabLayout = binding.mTableLayout;
        tabLayout.setTitle(titles);
        //回调接口
        tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener(){
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                //选中事件
                Log.d("点击状态","status"+titles.get(tab.getPosition())+tab.getPosition());
                tabId=tab.getPosition();
                getData();
                itemMessageAdapter.notifyDataSetChanged();
            }

            @Override
            public void onTabUnselected(TabLayout.Tab tab) {
                //未选中事件
            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {

            }
        });
    }

    public void openItem(View v,Integer position){
        popupWindow=new CommonPopupWindow.Builder(getContext())
                .setView(R.layout.popup_rule_detail)
                .setWidthAndHeight(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT)
                .setBackGroundLevel(0.6f)
                .setAnimationStyle(R.anim.photo_dialog_in_anim)
                .setViewOnclickListener(new CommonPopupWindow.ViewInterface() {
                    @Override
                    public void getChildView(View views, int layoutResId) {
                        Log.d(TAG,"点击转主账号弹框");
                        //处理界面事件
                        ImageView cancel=views.findViewById(R.id.delete);
                        cancel.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View view) {
                                popupWindow.dismiss();
                            }
                        });
                        HtmlTextView htmlTextView=views.findViewById(R.id.html_text);
                        htmlTextView.setHtml(messageBeanList.get(position).getContent());
                    }
                })
                .setOutsideTouchable(true)
                .create();
        popupWindow.showAtLocation(v, Gravity.BOTTOM, 0, 0);
    }
}