谷歌电子市场7--分类

Posted 2020-08-21

1.对象封装

public class CategoryInfo {

    public String name1;
    public String name2;
    public String name3;
    public String url1;
    public String url2;
    public String url3;

    public String title;
    public boolean isTitle;// 表示当前对象是否是标题

}

2.CategoryFragment

public class CategoryFragment extends BaseFragment {

    private ArrayList<CategoryInfo> mList;

    @Override
    public View onCreateSuccessView() {
        MyListView view = new MyListView(UIUtils.getContext());
        view.setAdapter(new CategoryAdapter(mList));
        return view;
    }

    @Override
    public ResultState onLoad() {
        CategoryProtocol protocol = new CategoryProtocol();
        mList = protocol.getData(0);
        return check(mList);
    }

    class CategoryAdapter extends MyBaseAdapter<CategoryInfo> {

        public CategoryAdapter(ArrayList<CategoryInfo> list) {
            super(list);
        }

        // 根据当前位置,返回相应的Holder对象
        @Override
        public BaseHolder<CategoryInfo> getHolder(int position) {
            CategoryInfo info = getItem(position);
            if (info.isTitle) {
                return new TitleHolder();// 标题栏holder
            }
            return new CategoryHolder();// 普通类型holer
        }

        @Override
        public ArrayList<CategoryInfo> onLoadMore() {
            return null;
        }

        @Override
        public boolean hasMore() {
            return false;// 没有更多数据, 无需加载下一页
        }

        @Override
        public int getViewTypeCount() {
            return super.getViewTypeCount() + 1;// 在原来基础上,新增标题栏类型
        }

        // 根据位置判断当前item的类型
        @Override
        public int getInnerType(int position) {
            CategoryInfo info = getItem(position);
            if (info.isTitle) {// 标题栏类型
                return super.getInnerType(position) + 1;
            } else {// 普通类型
                return super.getInnerType(position);
            }
        }
    }
}

3.Holder　　

/**
 * 分类页标题栏holder
 */
public class TitleHolder extends BaseHolder<CategoryInfo> {

    private TextView tvTitle;

    @Override
    public View initView() {
        View view = View.inflate(UIUtils.getContext(),
                R.layout.list_item_title, null);
        tvTitle = (TextView) view.findViewById(R.id.tv_title);
        return view;
    }

    @Override
    public void refreshView(CategoryInfo data) {
        tvTitle.setText(data.title);
    }

}

---------------------------------------------
list_item_title.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="#000"
        android:textSize="18sp" />

</LinearLayout>

--------------------------------------------------

/**
 * 分类holder
 * 
 * @author Kevin
 */
public class CategoryHolder extends BaseHolder<CategoryInfo> implements
        OnClickListener {

    private ImageView ivIcon1, ivIcon2, ivIcon3;
    private TextView tvName1, tvName2, tvName3;
    private LinearLayout llGrid1, llGrid2, llGrid3;

    private BitmapUtils mBitmapUtils;

    @Override
    public View initView() {
        View view = View.inflate(UIUtils.getContext(),
                R.layout.list_item_category, null);

        mBitmapUtils = BitmapHelper.getBitmapUtils();
        mBitmapUtils.configDefaultLoadingImage(R.drawable.ic_default);

        ivIcon1 = (ImageView) view.findViewById(R.id.iv_icon1);
        ivIcon2 = (ImageView) view.findViewById(R.id.iv_icon2);
        ivIcon3 = (ImageView) view.findViewById(R.id.iv_icon3);

        tvName1 = (TextView) view.findViewById(R.id.tv_name1);
        tvName2 = (TextView) view.findViewById(R.id.tv_name2);
        tvName3 = (TextView) view.findViewById(R.id.tv_name3);

        llGrid1 = (LinearLayout) view.findViewById(R.id.ll_grid1);
        llGrid2 = (LinearLayout) view.findViewById(R.id.ll_grid2);
        llGrid3 = (LinearLayout) view.findViewById(R.id.ll_grid3);
        llGrid1.setOnClickListener(this);
        llGrid2.setOnClickListener(this);
        llGrid3.setOnClickListener(this);

        return view;
    }

    @Override
    public void refreshView(CategoryInfo data) {
        if (data != null) {
            tvName1.setText(data.name1);
            tvName2.setText(data.name2);
            tvName3.setText(data.name3);

            mBitmapUtils.display(ivIcon1, HttpHelper.URL + "image?name="
                    + data.url1);
            mBitmapUtils.display(ivIcon2, HttpHelper.URL + "image?name="
                    + data.url2);
            mBitmapUtils.display(ivIcon3, HttpHelper.URL + "image?name="
                    + data.url3);
        }
    }

    @Override
    public void onClick(View v) {
        CategoryInfo data = getData();

        switch (v.getId()) {
        case R.id.ll_grid1:
            Toast.makeText(UIUtils.getContext(), data.name1, Toast.LENGTH_SHORT)
                    .show();
            break;
        case R.id.ll_grid2:
            Toast.makeText(UIUtils.getContext(), data.name2, Toast.LENGTH_SHORT)
                    .show();
            break;
        case R.id.ll_grid3:
            Toast.makeText(UIUtils.getContext(), data.name3, Toast.LENGTH_SHORT)
                    .show();
            break;

        default:
            break;
        }
    }

}

--------------------------------------------
list_item_category.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="5dp"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/ll_grid1"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:background="@drawable/grid_item_bg_selector"
        android:gravity="center"
        android:orientation="vertical"
        android:padding="5dp" >

        <ImageView
            android:id="@+id/iv_icon1"
            android:layout_width="60dp"
            android:layout_height="60dp"
            android:src="@drawable/ic_default" />

        <TextView
            android:id="@+id/tv_name1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="休闲"
            android:textColor="#000"
            android:textSize="16sp" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/ll_grid2"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:background="@drawable/grid_item_bg_selector"
        android:gravity="center"
        android:orientation="vertical"
        android:padding="5dp" >

        <ImageView
            android:id="@+id/iv_icon2"
            android:layout_width="60dp"
            android:layout_height="60dp"
            android:src="@drawable/ic_default" />

        <TextView
            android:id="@+id/tv_name2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="休闲"
            android:textColor="#000"
            android:textSize="16sp" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/ll_grid3"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:background="@drawable/grid_item_bg_selector"
        android:gravity="center"
        android:orientation="vertical"
        android:padding="5dp" >

        <ImageView
            android:id="@+id/iv_icon3"
            android:layout_width="60dp"
            android:layout_height="60dp"
            android:src="@drawable/ic_default" />

        <TextView
            android:id="@+id/tv_name3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="休闲"
            android:textColor="#000"
            android:textSize="16sp" />
    </LinearLayout>
</LinearLayout>