LinkageListView

LinkageListView 是由左右两个ListView组成的一个组件，你可以点击左边的item改变右边ListView的数据，也可以直接滑动右边的数据来改变左边数据的状态，当然，你也可以禁止这个功能。同时你也可以根据需求来改变布局的样式。

Add Libraries

Step 1. Add the JitPack repository to your build file

Add it in your root build.gradle at the end of repositories:

allprojects {
	repositories {
		...
		maven { url 'https://jitpack.io' }
	}
}

Step 2. Add the dependency

dependencies {
        implementation 'com.github.LiuShuai1020:LinkageListView:v1.0.1'
}

Usage

备注：LinkageListView 只认识 LinkageModel 数据，所以你要将你的数据类型转换成 LinkageListView 认识的 LinkageModel 类型。

Step 1. 在布局文件中使用：

<com.liushiyu.linkagelistview.LinkageListView
        android:id="@+id/mLinkageListView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

Step 2. 在Activity中创建LinkageListView对象，并使用它：

是否联动
mLinkageListView.setLinkageScroll(false);

使用默认适配器
mLinkageListView.setLinkageData(List<LinkageModel> modelList)

设置监听器
mLinkageListView.setLinkageListener(LinkageListViewItemClick linkageListViewListener)

设置默认项
mLinkageListView.setDefaultItem(int leftIndex, int rightIndex)

Step 3. 拓展：

设置样式工具类
mLinkageListView.setLinkageColorUtil(LinkageColorUtil linkageColorUtil)

自定义样式
mLinkageListView.setLinkageData(LinkageListViewBaseAdapter leftBaseAdapter, LinkageListViewBaseAdapter rightBaseAdapter, List<LinkageModel> modelList)

重要：

1.LinkageListView 只认识 LinkageModel 类型的数据，所以你需要创建一个：

private List<LinkageModel> linkageRightModelList = new ArrayList<>();

2.然后讲你的数据进行处理：

private List<LinkageModel> addLinkageListViewTestData() {
    linkageRightModelList.clear();

    List<LinkageModel> linkageBaseModelList = new ArrayList<>();

    for (int i = 0; i < 100; i++) {

        LinkageModel linkageModel = new LinkageModel();
        linkageModel.setRelationship(i);
        linkageModel.setItemTitle("左边" + i);
        linkageModel.setLeftOrRight(BaseModel.LINKAGE_LEFT);
        linkageBaseModelList.add(linkageModel);

        for (int j = 0; j < 10; j++) {

            LinkageModel<YouDataModel> rightLinkageModel = new LinkageModel<>();
            rightLinkageModel.setRelationship(i);
            rightLinkageModel.setItemTitle(i + "的数据右边是：" + j);
            rightLinkageModel.setLeftOrRight(BaseModel.LINKAGE_RIGHT);

            YouDataModel youDataModel = new YouDataModel();
            youDataModel.setUserName("我是小明,你点击了：" + "左边" + i + "的数据且右边是：" + j);
            rightLinkageModel.setLinkageModelData(youDataModel);

            linkageBaseModelList.add(rightLinkageModel);
            linkageRightModelList.add(rightLinkageModel);
        }
    }
    return linkageBaseModelList;
}

3.如何使用它：

mLinkageListView.setLinkageData(addLinkageListViewTestData());

4.LinkageModel说明：

relationship：左右关联字段
itemTitle： 需要显示的内容
leftOrRight： 左侧还是右侧 （BaseModel.LINKAGE_LEFT，BaseModel.LINKAGE_RIGHT）

5.扩展（YouDataModel 未你自己可以自定义的bean）：

LinkageModel<YouDataModel> rightLinkageModel = new LinkageModel<>();

YouDataModel youDataModel = new YouDataModel();

rightLinkageModel.setLinkageModelData(youDataModel);

6.监听：

mLinkageListView.setLinkageListener(this::onLinkageItemClick);

public void onLinkageItemClick(LinkageModel linkageModel) {

    Toast.makeText(getApplication(), linkageModel.getItemTitle(), Toast.LENGTH_LONG).show();

    或者

YouDataModel youDataModel = linkageModel.getLinkageModelData();
    Toast.makeText(getApplication(), youDataModel.getUserName(), Toast.LENGTH_LONG).show();

}

7.自定义布局：

mLinkageListView.setLinkageData(new TestLeftAdapter(this),new TestRightAdapter(this), addLinkageListViewTestData());

自定义的adapter必须继承 LinkageListViewBaseAdapter<T>，如：

public class TestLeftAdapter extends LinkageListViewBaseAdapter<TestLeftAdapterViewHolder> {

private Context mContext;
private List<LinkageModel> dataList = new ArrayList<>();

public TestLeftAdapter(Context context) {
    super(context);
}

@Override
public void init(Context context) {
    this.mContext = context;
}

@Override
public void getDataList(List<LinkageModel> dataList) {
    this.dataList = dataList;
}

@Override
public TestLeftAdapterViewHolder getLinkageListViewViewHolder(View view) {
    return new TestLeftAdapterViewHolder(view);
}

@Override
public View getView(ViewGroup viewGroup) {
    return LayoutInflater.from(mContext).inflate(R.layout.adapter_test_left,viewGroup,false);
}

@Override
public void refreshLinkageViewData(int position, View view, ViewGroup viewGroup, TestLeftAdapterViewHolder viewHolder, String direction) {
    viewHolder.mTextView.setText(dataList.get(position).getItemTitle());
}

@Override
public void refreshLinkageViewState(TestLeftAdapterViewHolder viewHolder, String direction, int state, LinkageColorUtil linkageColorUtil) {
    switch (state) {
        case LinkageModel.TYPE_NO_CHOICE: // 没有焦点时的样式
            viewHolder.mLinearLayout.setBackgroundColor(mContext.getResources().getColor(direction.equals(LINKAGE_LEFT) ? linkageColorUtil.getLeftBackgroundColor() : linkageColorUtil.getRightBackgroundColor()));
            viewHolder.mTextView.setTextColor(mContext.getResources().getColor(linkageColorUtil.getTextColorNoChoice()));
            break;
        case LinkageModel.TYPE_CHOICE_FOCUS: // 当用户点击到item的时候的样式
            viewHolder.mLinearLayout.setBackgroundColor(mContext.getResources().getColor(linkageColorUtil.getChoiceBackgroundColor()));
            viewHolder.mTextView.setTextColor(mContext.getResources().getColor(linkageColorUtil.getTextColorChoiceFocus()));
            break;
        case LinkageModel.TYPE_CHOICE_NO_FOCUS: // 当用户焦点离开时的样式：
            viewHolder.mLinearLayout.setBackgroundColor(mContext.getResources().getColor(direction.equals(LINKAGE_RIGHT) ? linkageColorUtil.getLeftBackgroundColor() : linkageColorUtil.getRightBackgroundColor()));
            viewHolder.mTextView.setTextColor(mContext.getResources().getColor(linkageColorUtil.getTextColorChoiceNoFocus()));
            break;        }
}
}

其中ViewHolder为：

public class TestLeftAdapterViewHolder {
public LinearLayout mLinearLayout;
public TextView mTextView;

	public TestLeftAdapterViewHolder(View view) {
   	 mLinearLayout = view.findViewById(R.id.mLinearLayout);
    	 mTextView = view.findViewById(R.id.mTextView);
   }
}

LinkageListView 方法

        // 设置样式工具类
        public void setLinkageColorUtil(LinkageColorUtil linkageColorUtil);
        // 使用默认适配器
        public void setLinkageData(List<LinkageModel> modelList);
        // 扩展自定义风格：设置联动数据
        public void setLinkageData(LinkageListViewBaseAdapter leftBaseAdapter, LinkageListViewBaseAdapter rightBaseAdapter, List<LinkageModel> modelList);
        // 设置默认项
        public void setDefaultItem(int leftIndex, int rightIndex);
        // 设置监听器
        public void setLinkageListener(LinkageListViewItemClick linkageListViewListener);
        // 设置两边 LinkageListView 的权重比
        public void setLinkageLayoutWeight(float leftWeight, float rightWeight);
        // 设置左边 Divider 线
        public void setLinkageLeftDivider(Drawable divider);
        // 设置左边item Divider 的高度
        public void setLinkageLeftDividerHeight(int height);
        // 隐藏 Left LinkageListView 的Divider
        public void hideLinkageLeftDivider();
        // 设置右边 Divider 线
        public void setLinkageRightDivider(Drawable divider);
        // 设置右边item Divider 的高度
        public void setLinkageRightDividerHeight(int height);
        // 隐藏 Right LinkageListView 的Divider
        public void hideLinkageRightDivider();
        // 设置没有数据时显示的View 代替"暂无数据"
        public abstract void setLinkageNullDataView(View view);
        // 获取左边选中的下标
        public int getChoiceLeftIndex() {}
        // 获取右边选中的下标
        public int getChoiceRightIndex() {}