Android: 如何在 TableLayout 中滑动列？

Question

我正在尝试在支持列滑动的 Fragment 中制作 TableLayout。

如下面 link 中的图像所示，第一列 ("Header 1") 应该固定，而其他列 ("Header 2"、"Header 3" 和"Header 4" ) 应该可以滑动。

根据所在的列，header 还应显示一个或两个箭头图标。单击这些箭头图标时，列也应更改。

关于如何最好地实施它有什么想法吗？提前致谢。

Show image

Answer 1

查看 ViewPager 和 PagerAdapter

http://developer.android.com/training/animation/screen-slide.html

Answer 2

检查 ViewPager 滑动片段。 Here 是教程。

将此作为您的 TableLayout 的 TableRow 的子项插入：

<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />

Answer 3

首先感谢大家。好像没看清楚。

我的解决方案是为第一列使用固定的 ListView，为可滑动的列使用带有 ListView 的 ViewPager。

因此，在我的主布局文件中，我声明了一个 ListView 和一个 ViewPager，它们的布局权重都设置为 0.5。这确保固定列和可滑动列具有相同的宽度：

my_main_layout.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:padding="16dp">

<LinearLayout
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_weight="0.5"
    android:orientation="vertical">

    <TextView
        android:id="@+id/firstColumnHeader"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:paddingRight="@dimen/padding_horizontal_small"
        android:textAppearance="?android:textAppearanceMedium"
        android:textStyle="bold" />

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/gray" />


    <ListView
        android:id="@+id/firstColumnList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:divider="@null"
        android:dividerHeight="0dp"
        android:scrollbars="none"
        />
</LinearLayout>


<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:listSelector="@android:color/transparent"
    android:layout_weight="0.5" />

对于可滑动的列，我使用 ListView 和包含列名和两个箭头的水平 LinearLayout 制作了第二个自定义布局文件：

slideable_column_layout.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:id="@+id/viewpagerHeader"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:orientation="horizontal">

    <ImageView
        android:id="@+id/leftPagerArrow"
        android:layout_width="wrap_content"
        android:layout_height="15dp"
        android:layout_gravity="center_vertical"
        android:layout_marginRight="10dp"
        android:adjustViewBounds="true"
        android:src="@drawable/arrow_left" />

    <TextView
        android:id="@+id/headerText"
        android:textAppearance="?android:textAppearanceMedium"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textStyle="bold" />

    <ImageView
        android:id="@+id/rightPagerArrow"
        android:layout_width="wrap_content"
        android:layout_height="15dp"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="10dp"
        android:adjustViewBounds="true"
        android:src="@drawable/arrow_right" />

</LinearLayout>

<View
    android:layout_width="match_parent"
    android:layout_height="1dp"
    android:background="@color/gray" />

<ListView
    android:id="@android:id/list"
    android:layout_width="match_parent"
    android:layout_height="200dp"
    android:divider="@null"
    android:dividerHeight="0dp"
    android:listSelector="@android:color/transparent"
    android:scrollbars="none" />

然后，在我想要使用可滑动列的 Fragment 中，我实现了 ViewPager、PagerAdapter 和 ListViews：

import android.app.Fragment;
import android.app.FragmentManager;
import android.app.ListFragment;
import android.os.Bundle;
import android.support.v13.app.FragmentStatePagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;


public class MyFragment extends Fragment {

    private static final int NUM_PAGES = 4;
    private static final String[] titles = {"Column2", "Column3", "Column4", "Column5"};
    private final String[] column_one = {"Data 1.0", "Data 1.1", "Data 1.2", "Data 1.3"};

    public static final String[] column_two = {"Data 2.0", "Data 2.1", "Data 2.2", "Data 2.3"};

    public static final String[] column_three = {"Data 3.0", "Data 3.1", "Data 3.2", "Data 3.3"};

    public static final String[] column_four = {"Data 4.0", "Data 4.1", "Data 4.2", "Data 4.3"};

    public static final String[] column_five = {"Data 5.0", "Data 5.1", "Data 5.2", "Data 5.3"};


    public static ViewPager mViewPager;
    private PagerAdapter mAdapter;
    private ListView mListView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.my_main_layout,
                container, false);

        //Set ListView and its adapter
        mListView = (ListView) view.findViewById(R.id.firstColumnList);
        ArrayAdapter<String> sAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, column_one);
        mListView.setAdapter(sAdapter);

        //Set ViewPager and its adapter
        mViewPager = (ViewPager) view.findViewById(R.id.pager);
        mAdapter = new ViewPagerAdapter(getFragmentManager());
        mViewPager.setAdapter(mAdapter);

        return view;
    }

    public static class ViewPagerAdapter extends FragmentStatePagerAdapter {
        public ViewPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public int getCount() {
            return NUM_PAGES;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return titles[position];
        }

        @Override
        public Fragment getItem(int position) {
            return SlidingListFragment.newInstance(position);
        }


    }

    public static class SlidingListFragment extends ListFragment {

        private int mNum;
        private ImageView leftArrow;
        private ImageView rightArrow;

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            if (getArguments() != null) {
                mNum = getArguments().getInt("num");

            } else {
                mNum = 1;
            }
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View view = inflater.inflate(R.layout.sliding_column_layout,
                    container, false);

            ListView slidingList = (ListView) view.findViewById(android.R.id.list);
            TextView header = (TextView) view.findViewById(R.id.headerText);
            header.setText(getHeader());
            leftArrow = (ImageView) view.findViewById(R.id.leftPagerArrow);
            rightArrow = (ImageView) view.findViewById(R.id.rightPagerArrow);
            if (leftArrow.getVisibility() == View.VISIBLE) {
                leftArrow.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        mViewPager.setCurrentItem(mNum - 1);
                    }
                });
            }
            if (rightArrow.getVisibility() == View.VISIBLE) {
                rightArrow.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        mViewPager.setCurrentItem(mNum + 1);
                    }
                });
            }
            setArrows();

            slidingList.setAdapter(new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, getMyListArray()));

            return view;
        }

        private String getHeader() {
            String header = "";
            switch (mNum) {
                case 0:
                    header = titles[0];
                    break;
                case 1:
                    header = titles[1];
                    break;
                case 2:
                    header = titles[2];
                    break;
                case 3:
                    header = titles[3];
                    break;
            }
            return header;
        }

        private void setArrows() {
            switch (mNum) {
                case 0:
                    leftArrow.setVisibility(View.INVISIBLE);
                    break;
                case 1:
                    break;
                case 2:
                    break;
                case 3:
                    rightArrow.setVisibility(View.INVISIBLE);
                    break;
            }
        }

        private String[] getMyListArray() {
            String[] returnArray = {"no lists"};
            switch (mNum) {
                case 0:
                    returnArray = column_two;
                    break;
                case 1:
                    returnArray = column_three;
                    break;
                case 2:
                    returnArray = column_four;
                    break;
                case 3:
                    returnArray = column_five;
                    break;
            }
            return returnArray;
        }


        /**
         * Create a new instance of SlidingFragment, providing "num"
         * as an argument.
         */
        static SlidingListFragment newInstance(int num) {
            SlidingListFragment f = new SlidingListFragment();

            // Supply num input as an argument.
            Bundle args = new Bundle();
            args.putInt("num", num);
            f.setArguments(args);

            return f;
        }

    }

}

我不知道这是否是最有效的解决方案，但它确实有效:-)

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