Android BaseRecyclerViewAdapterH

作者: 哈哩波特大 | 来源:发表于2019-05-21 14:02 被阅读414次

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activity_main.xml

<android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipeLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </android.support.v4.widget.SwipeRefreshLayout>

创建Adapter(根据需求创建不同的Adapter)

/*******************************************
 * @author  : 奥特曼
 * @Email   : luckkof@foxmail.com
 * @Description : 适配器 示例类
 *******************************************/
public class MeAdapter extends BaseQuickAdapter<String, BaseViewHolder> {

    public MeAdapter(@LayoutRes int layoutResId, @Nullable List<String> data) {
        super(layoutResId, data);
    }

    public MeAdapter(@LayoutRes int layoutResId) {
        super(layoutResId);
    }

    @Override
    protected void convert(BaseViewHolder viewHolder, String item) {
        //添加Item子控件的点击事件
        helper.addOnClickListener(R.id.tv_name);
        //赋值
        viewHolder.setText(R.id.tv_me_title_name,"Hello："+item);
        ImageView iv_cover = viewHolder.getView(R.id.iv_cover);
        iv_cover.setImageResource(mContext.getResources().getIdentifier("ic_palette_0" + viewHolder.getLayoutPosition() % 4, "drawable", mContext.getPackageName()));
    }

}

初始化Adapter

private void initAdapter() {
        mAdapter = new MeAdapter(R.layout.item_fragment_me);

        /** --------------------------- 动画效果 --------------------------- **/

        //开启动画效果
        mAdapter.openLoadAnimation();
        //设置动画效果
        /**
         * 渐显 ALPHAIN
         * 缩放 SCALEIN
         * 从下到上 SLIDEIN_BOTTOM
         * 从左到右 SLIDEIN_LEFT
         * 从右到左 SLIDEIN_RIGHT
         */
        mAdapter.openLoadAnimation(BaseQuickAdapter.SCALEIN);
        mAdapter.setNewData(mData);

        /** --------------------------- 点击事件 --------------------------- **/

        //设置Item点击事件
        mAdapter.setOnItemClickListener(new BaseQuickAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
                ToastUitl.showShort("onItemClick：" + position);
            }
        });
        //设置Item长按事件
        mAdapter.setOnItemLongClickListener(new BaseQuickAdapter.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(BaseQuickAdapter adapter, View view, int position) {
                ToastUitl.showShort("onItemLongClick：" + position);
                return false;
            }
        });
        //设置Item中子控件点击事件
        mAdapter.setOnItemChildClickListener(new BaseQuickAdapter.OnItemChildClickListener() {
            @Override
            public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
                //判断子控件
                if (view.getId() == R.id.tv_name) {
                    ToastUitl.showShort("onItemChildClick：" + position);
                }
            }
        });

        /** --------------------------- 加载更多 --------------------------- **/

        //设置加载更多
        mAdapter.setOnLoadMoreListener(this, mRecyclerView);
        //默认第一次加载会进入回调，如果不需要可以配置
        mAdapter.disableLoadMoreIfNotFullPage();
        //当列表滑动到倒数第N个Item的时候(默认是1)回调onLoadMoreRequested方法
        mAdapter.setPreLoadNumber(1);

        /** --------------------------- 添加头部尾部 --------------------------- **/
        View item_head = LayoutInflater.from(getContext()).inflate(R.layout.item_head, (ViewGroup) mRecyclerView.getParent(), false);
        mAdapter.addHeaderView(item_head);
        View item_footer = LayoutInflater.from(getContext()).inflate(R.layout.item_footer, (ViewGroup) mRecyclerView.getParent(), false);
        mAdapter.addFooterView(item_footer);

    }

初始化RecyclerView

    private void initRecyclerView() {
        //设置布局方式
        mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
        //解决数据加载不完的问题
        mRecyclerView.setNestedScrollingEnabled(false);
        //当知道Adapter内Item的改变不会影响RecyclerView宽高的时候，可以设置为true让RecyclerView避免重新计算大小
        mRecyclerView.setHasFixedSize(true);
        //解决数据加载完成后, 没有停留在顶部的问题
        mRecyclerView.setFocusable(false);
        //添加分割线
        mRecyclerView.addItemDecoration(new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL_LIST));
        //设置适配器
        mRecyclerView.setAdapter(mAdapter);

        // -----------------------点击长按事件的使用方式-----------------------//
//        //另一种Item点击事件
//        mRecyclerView.addOnItemTouchListener(new OnItemClickListener() {
//            @Override
//            public void onSimpleItemClick(BaseQuickAdapter adapter, View view, int position) {
//                ToastUitl.showShort("mRecyclerView.onItemClick：" + position);
//            }
//        });
//        //另一种Item长按事件
//        mRecyclerView.addOnItemTouchListener(new OnItemLongClickListener() {
//            @Override
//            public void onSimpleItemLongClick(BaseQuickAdapter adapter, View view, int position) {
//                ToastUitl.showShort("mRecyclerView.onItemLongClick：" + position);
//            }
//        });
//        //另一种设置Item中子控件点击事件
//        mRecyclerView.addOnItemTouchListener(new OnItemChildClickListener() {
//            @Override
//            public void onSimpleItemChildClick(BaseQuickAdapter adapter, View view, int position) {
//                ToastUitl.showShort("mRecyclerView.onItemChildClick：" + position);
//            }
//        });
//        //另一种设置Item中子控件长按事件
//        mRecyclerView.addOnItemTouchListener(new OnItemChildLongClickListener() {
//            @Override
//            public void onSimpleItemChildLongClick(BaseQuickAdapter adapter, View view, int position) {
//                ToastUitl.showShort("mRecyclerView.onItemChildLongClick：" + position);
//            }
//        });

//        //if you wish to implement various forms of click(如果你希望实施各种形式的点击)
//        mRecyclerView.addOnItemTouchListener(new SimpleClickListener() {
//            @Override
//            public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
//                ToastUitl.showShort("mRecyclerView.onItemClick：" + position);
//            }
//
//            @Override
//            public void onItemLongClick(BaseQuickAdapter adapter, View view, int position) {
//                ToastUitl.showShort("mRecyclerView.onItemLongClick：" + position);
//            }
//
//            @Override
//            public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
//                ToastUitl.showShort("mRecyclerView.onItemChildClick：" + position);
//            }
//
//            @Override
//            public void onItemChildLongClick(BaseQuickAdapter adapter, View view, int position) {
//                ToastUitl.showShort("mRecyclerView.onItemChildLongClick：" + position);
//            }
//        });
        // -----------------------End点击长按事件的使用方式----------------------- //

    }

加载更多

//1.实现
implements BaseQuickAdapter.RequestLoadMoreListener

//2.请求数据
@Override
    public void onLoadMoreRequested() {
        // 1秒钟后刷新页面
        mRecyclerView.postDelayed(new Runnable() {
            @Override
            public void run() {
                // 模拟网络请求获取数据
                List<String> data = new ArrayList<>();
                mCurrentPage += 1;
                for (int i = 0; i < 10; i++) {
                    data.add(i + "");
                }
                if (mCurrentPage <= 5) {
                    mAdapter.addData(data);
                    //数据加载完成
                    mAdapter.loadMoreComplete();
                } else {
                    //数据加载完毕
                    mAdapter.loadMoreEnd();
                }
            }
        }, 1000);
    }

下拉刷新

//1.实现
implements SwipeRefreshLayout.OnRefreshListener

//2.请求数据
@Override
    public void onRefresh() {
        //刷新的时候禁止加载更多
        mAdapter.setEnableLoadMore(false);
        mRecyclerView.postDelayed(new Runnable() {
            @Override
            public void run() {
                mCurrentPage = 1;
                //模拟数据
                List<String> data = Arrays.asList(AppApplication.getAppContext().getResources().getStringArray(R.array.care_name));
                mData = new ArrayList(data);
                //更新数据
                mAdapter.setNewData(mData);
                //刷新完成取消刷新动画
                mSwipeRefreshLayout.setRefreshing(false);
                //刷新完成重新开启加载更多
                mAdapter.setEnableLoadMore(true);
            }
        }, 1000);
    }

DividerItemDecoration.java

/*******************************************
 * @author  : 奥特曼
 * @Email   : luckkof@foxmail.com
 * @Description : 分割线
 *******************************************/
public class DividerItemDecoration extends RecyclerView.ItemDecoration {

    private static final int[] ATTRS = new int[]{android.R.attr.listDivider};
    // 线性列表 方向
    public static final int HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL;
    public static final int VERTICAL_LIST = LinearLayoutManager.VERTICAL;
    private Drawable mDivider;
    private int mOrientation;
    private Paint mPaint;
    private int mDividerHeight = 2;

    /**
     * 默认样式分割线
     * 宽度为2 颜色为灰色
     *
     * @param context
     * @param orientation
     */
    public DividerItemDecoration(Context context, int orientation) {
        final TypedArray a = context.obtainStyledAttributes(ATTRS);
        mDivider = a.getDrawable(0);
        a.recycle();
        setOrientation(orientation);
    }

    /**
     * 自定义分割线
     *
     * @param context
     * @param orientation 列表方向
     * @param drawableId  分割线图片
     */
    public DividerItemDecoration(Context context, int orientation, int drawableId) {
        this(context, orientation);
        mDivider = ContextCompat.getDrawable(context, drawableId);
        mDividerHeight = mDivider.getIntrinsicHeight();
    }

    /**
     * 自定义分割线
     *
     * @param context
     * @param orientation   列表方向
     * @param dividerHeight 分割线高度
     * @param dividerColor  分割线颜色
     */
    public DividerItemDecoration(Context context, int orientation, int dividerHeight, int dividerColor) {
        this(context, orientation);
        mDividerHeight = dividerHeight;
        mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
        mPaint.setColor(context.getResources().getColor(dividerColor));
        mPaint.setStyle(Paint.Style.FILL);
    }

    public void setOrientation(int orientation) {
        if (orientation != HORIZONTAL_LIST && orientation != VERTICAL_LIST) {
            throw new IllegalArgumentException("invalid orientation");
        }
        mOrientation = orientation;
    }

    @Override
    public void onDraw(Canvas c, RecyclerView parent) {
        if (mOrientation == VERTICAL_LIST) {
            drawVertical(c, parent);
        } else {
            drawHorizontal(c, parent);
        }
    }

    @Override
    public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
        super.onDraw(c, parent, state);
    }

    // 绘制垂直排列的分割线
    public void drawVertical(Canvas c, RecyclerView parent) {
        final int left = parent.getPaddingLeft();
        final int right = parent.getWidth() - parent.getPaddingRight();
        final int childCount = parent.getChildCount();
        for (int i = 0; i < childCount; i++) {
            final View child = parent.getChildAt(i);
            RecyclerView v = new RecyclerView(parent.getContext());
            final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
            final int top = child.getBottom() + params.bottomMargin;
            final int bottom = top + mDividerHeight;
            if (mDivider != null) {
                mDivider.setBounds(left, top, right, bottom);
                mDivider.draw(c);
            }
            if (mPaint != null) {
                c.drawRect(left, top, right, bottom, mPaint);
            }
        }
    }

    // 绘制水平排列的分割线
    public void drawHorizontal(Canvas c, RecyclerView parent) {
        final int top = parent.getPaddingTop();
        final int bottom = parent.getHeight() - parent.getPaddingBottom();
        final int childCount = parent.getChildCount();
        for (int i = 0; i < childCount; i++) {
            final View child = parent.getChildAt(i);
            final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
            final int left = child.getRight() + params.rightMargin;
            final int right = left + mDividerHeight;
            if (mDivider != null) {
                mDivider.setBounds(left, top, right, bottom);
                mDivider.draw(c);
            }
            if (mPaint != null) {
                c.drawRect(left, top, right, bottom, mPaint);
            }
        }
    }

    @Override
    public void getItemOffsets(Rect outRect, int itemPosition, RecyclerView parent) {
        if (mOrientation == VERTICAL_LIST) {
            outRect.set(0, 0, 0, mDividerHeight);
        } else {
            outRect.set(0, 0, mDividerHeight, 0);
        }
    }

}

Android BaseRecyclerViewAdapterH

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