项目引入依赖

1、在bulid.gradle(Project:xxx)的文件中添加

allprojects {
    repositories {
        //jcenter镜像
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url "https://jitpack.io" }
    }
}

2、在bulid.gradle(Module:xxx)的文件添加

dependencies {
    implementation 'com.github.CymChad:BaseRecyclerViewAdapterHelper:3.0.4'
  // 下拉刷新
    implementation 'com.scwang.smartrefresh:SmartRefreshLayout:1.1.0'
    implementation 'com.scwang.smartrefresh:SmartRefreshHeader:1.1.0'
}

使用案例

3.1 设置布局文件

        <com.scwang.smartrefresh.layout.SmartRefreshLayout
            android:id="@+id/smart"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:srlEnableHeaderTranslationContent="false">

            <com.scwang.smartrefresh.header.MaterialHeader
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

            <androidx.recyclerview.widget.RecyclerView
                android:id="@+id/recy_kongjian"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />

            <com.scwang.smartrefresh.layout.footer.ClassicsFooter
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />
        </com.scwang.smartrefresh.layout.SmartRefreshLayout>

3.2 自定义适配器,继承BaseQuickAdapter

class TiXingAdapter : BaseQuickAdapter<QtypeVo, BaseViewHolder>(R.layout.item_tixing),LoadMoreModule {
   override fun convert(holder: BaseViewHolder, item: QtypeVo) {
       val  tvName = holder.getView<TextView>(R.id.tv_content)
       if (item.isSelected) {
           tvName.background = MyApp.instance.resources.getDrawable(R.drawable.shape_tv_ckbg_bg)
           tvName.setTextColor(ZJColor.white)
       } else {
           tvName.background = MyApp.instance.resources.getDrawable(R.drawable.shape_btn_bg_gray)
           tvName.setTextColor(ZJColor.black_33)
       }
       tvName.text = item.qtypename
   }
}

3.3 调用，如果xml中没有设置layoutManager，那可以声明的时候设置

tiXingAdapter  = TiXingAdapter ()
tiXingAdapter?.data = kemuDatas
recy_kemu.layoutManager = GridLayoutManager(this, 3)
recy_kemu.adapter = tiXingAdapter

切记一定要设置布局管理器否则数据出不来

适配器点击事件

4.1 item点击事件

tiXingAdapter?.setOnItemClickListener { adapter, view, position ->
//item点击事件
}

4.2 item长按事件

tiXingAdapter?.setOnItemLongClickListener(new BaseQuickAdapter.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(BaseQuickAdapter adapter, View view, int position) {
                
                return false;
            }
        });

4.3 item 子控件点击事件
一般用于RecyclerView嵌套RecyclerView或者滑动删除等其他的操作

tiXingAdapter?.addChildClickViewIds(R.id.wvItem, R.id.fCon)
tiXingAdapter?.setOnItemChildClickListener() { adapter, view, position ->
  //点击事件
}

4.4 数据为空的显示的ui

tiXingAdapter?.setEmptyView(R.layout.empty_bg)

下拉刷洗上拉加载更多

smart.setOnRefreshLoadMoreListener(object : OnRefreshLoadMoreListener {
            override fun onLoadMore(refreshLayout: RefreshLayout) {
                loadmore()
            }

            override fun onRefresh(refreshLayout: RefreshLayout) {
                refresh()
            }

        })

结束刷新

override fun endRefreshAndLoadMore() {
        super.endRefreshAndLoadMore()
        smart.finishRefresh()
        smart.finishLoadMore()
    }

在p层的时候记得要调用

mView.endRefreshAndLoadMore()

如果加载到最后一页没有数据了提示没有更多数据

smart.setNoMoreData(true)//没有更多数据
smart.setNoMoreData(false)//还有更多数据 默认的是false