android - Android：垂直 ViewPager

Question

有没有办法制作一个ViewPager不水平滚动但垂直滚动的？！

score 229 · Accepted Answer

您可以使用ViewPager.PageTransformer来产生垂直的错觉ViewPager。要实现垂直滚动而不是水平拖动，您必须覆盖ViewPager的默认触摸事件并MotionEvent在处理它们之前交换 s 的坐标，例如：

/**
 * Uses a combination of a PageTransformer and swapping X & Y coordinates
 * of touch events to create the illusion of a vertically scrolling ViewPager. 
 * 
 * Requires API 11+
 * 
 */
public class VerticalViewPager extends ViewPager {

    public VerticalViewPager(Context context) {
        super(context);
        init();
    }

    public VerticalViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    private void init() {
        // The majority of the magic happens here
        setPageTransformer(true, new VerticalPageTransformer());
        // The easiest way to get rid of the overscroll drawing that happens on the left and right
        setOverScrollMode(OVER_SCROLL_NEVER);
    }

    private class VerticalPageTransformer implements ViewPager.PageTransformer {

        @Override
        public void transformPage(View view, float position) {

            if (position < -1) { // [-Infinity,-1)
                // This page is way off-screen to the left.
                view.setAlpha(0);

            } else if (position <= 1) { // [-1,1]
                view.setAlpha(1);

                // Counteract the default slide transition
                view.setTranslationX(view.getWidth() * -position);

                //set Y position to swipe in from top
                float yPosition = position * view.getHeight();
                view.setTranslationY(yPosition);

            } else { // (1,+Infinity]
                // This page is way off-screen to the right.
                view.setAlpha(0);
            }
        }
    }

    /**
     * Swaps the X and Y coordinates of your touch event.
     */
    private MotionEvent swapXY(MotionEvent ev) {
        float width = getWidth();
        float height = getHeight();

        float newX = (ev.getY() / height) * width;
        float newY = (ev.getX() / width) * height;

        ev.setLocation(newX, newY);

        return ev;
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev){
        boolean intercepted = super.onInterceptTouchEvent(swapXY(ev));
        swapXY(ev); // return touch coordinates to original reference frame for any child views
        return intercepted;
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        return super.onTouchEvent(swapXY(ev));
    }

}

当然，您可以根据需要调整这些设置。最终看起来像这样：

VerticalViewPager 演示

score 26 · Accepted Answer

垂直视图分页器

这里的其他答案似乎都有一些问题。即使是推荐的开源项目也没有将最近的拉取请求与错误修复合并。然后我VerticalViewPager从谷歌发现他们使用了一些 DeskClock 应用程序。我相信使用谷歌的实现比这里漂浮的其他答案要多得多。（谷歌的版本类似于当前投票最多的答案，但更彻底。）

完整示例

这个例子和我的基本 ViewPager例子几乎完全一样，只是为了使用这个VerticalViewPager类做了一些小的改动。

XML

为主要活动和每个页面（片段）添加 xml 布局。请注意，我们使用VerticalViewPager而不是标准的ViewPager. 我将在下面包含代码。

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.verticalviewpager.MainActivity">

    <com.example.myapp.VerticalViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</RelativeLayout>

fragment_one.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent" >

    <TextView
        android:id="@+id/textview"
        android:textSize="30sp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true" />

</RelativeLayout>

代码

的代码VerticalViewPager不是我的。它只是 Google 源代码的精简版（没有注释）。查看该版本以获取最新版本。那里的评论也有助于理解正在发生的事情。

VerticalViewPager.java

import android.support.v4.view.ViewPager;    

public class VerticalViewPager extends ViewPager {

    public VerticalViewPager(Context context) {
        this(context, null);
    }

    public VerticalViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    @Override
    public boolean canScrollHorizontally(int direction) {
        return false;
    }

    @Override
    public boolean canScrollVertically(int direction) {
        return super.canScrollHorizontally(direction);
    }

    private void init() {
        setPageTransformer(true, new VerticalPageTransformer());
        setOverScrollMode(View.OVER_SCROLL_NEVER);
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        final boolean toIntercept = super.onInterceptTouchEvent(flipXY(ev));
        flipXY(ev);
        return toIntercept;
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        final boolean toHandle = super.onTouchEvent(flipXY(ev));
        flipXY(ev);
        return toHandle;
    }

    private MotionEvent flipXY(MotionEvent ev) {
        final float width = getWidth();
        final float height = getHeight();
        final float x = (ev.getY() / height) * width;
        final float y = (ev.getX() / width) * height;
        ev.setLocation(x, y);
        return ev;
    }

    private static final class VerticalPageTransformer implements ViewPager.PageTransformer {
        @Override
        public void transformPage(View view, float position) {
            final int pageWidth = view.getWidth();
            final int pageHeight = view.getHeight();
            if (position < -1) {
                view.setAlpha(0);
            } else if (position <= 1) {
                view.setAlpha(1);
                view.setTranslationX(pageWidth * -position);
                float yPosition = position * pageHeight;
                view.setTranslationY(yPosition);
            } else {
                view.setAlpha(0);
            }
        }
    }
}

MainActivity.java

我只换VerticalViewPager了ViewPager。

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;

public class MainActivity extends AppCompatActivity {

    static final int NUMBER_OF_PAGES = 2;

    MyAdapter mAdapter;
    VerticalViewPager mPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mAdapter = new MyAdapter(getSupportFragmentManager());
        mPager = findViewById(R.id.viewpager);
        mPager.setAdapter(mAdapter);
    }

    public static class MyAdapter extends FragmentPagerAdapter {
        public MyAdapter(FragmentManager fm) {
            super(fm);
        }

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

        @Override
        public Fragment getItem(int position) {

            switch (position) {
                case 0:
                    return FragmentOne.newInstance(0, Color.WHITE);
                case 1:
                    // return a different Fragment class here
                    // if you want want a completely different layout
                    return FragmentOne.newInstance(1, Color.CYAN);
                default:
                    return null;
            }
        }
    }

    public static class FragmentOne extends Fragment {

        private static final String MY_NUM_KEY = "num";
        private static final String MY_COLOR_KEY = "color";

        private int mNum;
        private int mColor;

        // You can modify the parameters to pass in whatever you want
        static FragmentOne newInstance(int num, int color) {
            FragmentOne f = new FragmentOne();
            Bundle args = new Bundle();
            args.putInt(MY_NUM_KEY, num);
            args.putInt(MY_COLOR_KEY, color);
            f.setArguments(args);
            return f;
        }

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            mNum = getArguments() != null ? getArguments().getInt(MY_NUM_KEY) : 0;
            mColor = getArguments() != null ? getArguments().getInt(MY_COLOR_KEY) : Color.BLACK;
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View v = inflater.inflate(R.layout.fragment_one, container, false);
            v.setBackgroundColor(mColor);
            TextView textView = v.findViewById(R.id.textview);
            textView.setText("Page " + mNum);
            return v;
        }
    }
}

完成的

您应该能够运行应用程序并在上面的动画中看到结果。

也可以看看

score 21 · Accepted Answer

我有一个分两步对我有用的解决方案。

onInstantiateItem()，PagerAdapter创建视图并将其旋转 -90：
```
view.setRotation(-90f)
```
如果您正在使用FragmentPagerAdapter，则：
```
objFragment.getView().setRotation(-90)
```
将视图旋转ViewPager90 度：
```
objViewPager.setRotation(90)
```

至少对我的要求来说就像一个魅力。

score 14 · Accepted Answer

对于正在努力使垂直 ViewPager 在水平内部工作的人，只需执行以下操作：

垂直视图分页器

public class VerticalViewPager extends ViewPager {
    public VerticalViewPager(Context context) {
        super(context);
        init();
    }

    public VerticalViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    private void init() {
        setPageTransformer(true, new VerticalPageTransformer());
        setOverScrollMode(OVER_SCROLL_NEVER);
    }

    private class VerticalPageTransformer implements ViewPager.PageTransformer {

        @Override
        public void transformPage(View view, float position) {

            if (position < -1) {
                view.setAlpha(0);
            } else if (position <= 1) {
                view.setAlpha(1);

                view.setTranslationX(view.getWidth() * -position);

                float yPosition = position * view.getHeight();
                view.setTranslationY(yPosition);
            } else {
                view.setAlpha(0);
            }
        }
    }

    private MotionEvent swapXY(MotionEvent ev) {
        float width = getWidth();
        float height = getHeight();

        float newX = (ev.getY() / height) * width;
        float newY = (ev.getX() / width) * height;

        ev.setLocation(newX, newY);

        return ev;
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        boolean intercepted = super.onInterceptTouchEvent(swapXY(ev));
        swapXY(ev);
        return intercepted;
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        return super.onTouchEvent(swapXY(ev));
    }

}

水平视图分页器

public class HorizontalViewPager extends ViewPager {
    private GestureDetector xScrollDetector;

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

    public HorizontalViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
        xScrollDetector = new GestureDetector(getContext(), new XScrollDetector());
    }

    class XScrollDetector extends GestureDetector.SimpleOnGestureListener {
        @Override
        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
            return Math.abs(distanceX) > Math.abs(distanceY);
        }
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        if (xScrollDetector.onTouchEvent(ev)) {
            super.onInterceptTouchEvent(ev);
            return true;
        }

        return super.onInterceptTouchEvent(ev);
    }

}

score 8 · Accepted Answer

这个答案的轻微扩展帮助我实现了我的要求（垂直视图寻呼机动画类似Inshorts - 60 字新闻）

public class VerticalViewPager extends ViewPager {

public VerticalViewPager(Context context) {
    super(context);
    init();
}

public VerticalViewPager(Context context, AttributeSet attrs) {
    super(context, attrs);
    init();
}

private void init() {
    // The majority of the magic happens here
    setPageTransformer(true, new VerticalPageTransformer());
    // The easiest way to get rid of the overscroll drawing that happens on the left and right
    setOverScrollMode(OVER_SCROLL_NEVER);
}

private class VerticalPageTransformer implements ViewPager.PageTransformer {
 private static final float MIN_SCALE = 0.75f;
    @Override
    public void transformPage(View view, float position) {

        if (position < -1) { // [-Infinity,-1)
            // This page is way off-screen to the left.
            view.setAlpha(0);

        }  else if (position <= 0) { // [-1,0]
            // Use the default slide transition when moving to the left page
            view.setAlpha(1);
            // Counteract the default slide transition
            view.setTranslationX(view.getWidth() * -position);

            //set Y position to swipe in from top
            float yPosition = position * view.getHeight();
            view.setTranslationY(yPosition);
            view.setScaleX(1);
            view.setScaleY(1);

        } else if (position <= 1) { // [0,1]
            view.setAlpha(1);

            // Counteract the default slide transition
            view.setTranslationX(view.getWidth() * -position);


            // Scale the page down (between MIN_SCALE and 1)
            float scaleFactor = MIN_SCALE
                    + (1 - MIN_SCALE) * (1 - Math.abs(position));
            view.setScaleX(scaleFactor);
            view.setScaleY(scaleFactor);

        } else { // (1,+Infinity]
            // This page is way off-screen to the right.
            view.setAlpha(0);
        }

    }

}

/**
 * Swaps the X and Y coordinates of your touch event.
 */
private MotionEvent swapXY(MotionEvent ev) {
    float width = getWidth();
    float height = getHeight();

    float newX = (ev.getY() / height) * width;
    float newY = (ev.getX() / width) * height;

    ev.setLocation(newX, newY);

    return ev;
}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev){
    boolean intercepted = super.onInterceptTouchEvent(swapXY(ev));
    swapXY(ev); // return touch coordinates to original reference frame for any child views
    return intercepted;
}

@Override
public boolean onTouchEvent(MotionEvent ev) {
    return super.onTouchEvent(swapXY(ev));
}
}

我希望这对其他人有帮助。

score 4 · Accepted Answer

有一些开源项目声称可以做到这一点。他们来了：

kaelaela/VerticalViewPager，2015 年 10 月的最新提交和一位贡献者
castorflex/VerticalViewPager，2014 年 2 月的最新提交和三个贡献者
LambergaR/VerticalViewPager/，2013 年 8 月的最新提交和一位贡献者

这些已被其作者标记为已弃用：

已弃用：JakeWharton 的 Android Directional-ViewPager https://github.com/JakeWharton/Android-DirectionalViewPager

还有一件事情：

该应用程序的 Android 源代码中还有一个文件名VerticalViewPager.javadeskclock，但它似乎不受官方支持，因为我找不到它的文档。

score 3 · Accepted Answer

看看这个：https ://github.com/JakeWharton/Android-DirectionalViewPager

或者以下问题可能对您有所帮助：Vertical 'Gridview with pages' 或 'Viewpager'

score 3 · Accepted Answer

只是对@Brett和@Salman666的答案进行了改进，以正确地将坐标 (X,Y) 转换为 (Y,X)，因为设备显示器是矩形的：

...

/**
 * Swaps the X and Y coordinates of your touch event
 */
@Override
public boolean onTouchEvent(MotionEvent ev) {
    return super.onTouchEvent(swapXY(ev));
}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    return super.onInterceptTouchEvent(swapXY(ev));
}

private MotionEvent swapXY(MotionEvent ev) {

    //Get display dimensions
    float displayWidth=this.getWidth();
    float displayHeight=this.getHeight();

    //Get current touch position
    float posX=ev.getX();
    float posY=ev.getY();

    //Transform (X,Y) into (Y,X) taking display dimensions into account
    float newPosX=(posY/displayHeight)*displayWidth;
    float newPosY=(1-posX/displayWidth)*displayHeight;

    //swap the x and y coords of the touch event
    ev.setLocation(newPosX, newPosY);

    return ev;
}

...

但是，仍然需要做一些事情来提高触摸屏的响应能力。该问题可能与@msdark 对@Salman666 的回答的评论有关。

score 2 · Accepted Answer

import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;

public class VerticalViewPager extends ViewPager {

    public VerticalViewPager(Context context) {
        super(context);
        init();
    }


    public VerticalViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }
    private void init() {

        setPageTransformer(true, new VerticalPageTransformer());

        setOverScrollMode(OVER_SCROLL_NEVER);
    }

    private class VerticalPageTransformer implements PageTransformer {

        @Override
        public void transformPage(View view, float position) {
            int pageWidth = view.getWidth();
            int pageHeight = view.getHeight();

            if (position < -1) {

                view.setAlpha(0);

            } else if (position <= 1) {
                view.setAlpha(1);


                view.setTranslationX(pageWidth * -position);


                float yPosition = position * pageHeight;
                view.setTranslationY(yPosition);

            } else {

                view.setAlpha(0);
            }
        }
    }
        @Override
    public boolean onTouchEvent(MotionEvent ev) {

        ev.setLocation(ev.getY(), ev.getX());

        return super.onTouchEvent(ev);
    }
    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        ev.setLocation(ev.getY(), ev.getX());
        return super.onInterceptTouchEvent(ev);
    }
}

score 1 · Accepted Answer

我最终创建了一个可以垂直或水平滚动的新DirectionalViewPager ，因为我在这里看到的所有解决方案都有缺陷：

现有的 VerticalViewPager 实现（通过 castorflex 和 LambergaR）
- 它们基于非常旧的支持库版本。
坐标交换变换技巧
- 过卷轴仍然从左/右边缘显示。
- 页面投掷不能正常工作，因为即使交换了坐标，VelocityTracker.computeCurrentVelocity仍然计算 X 轴的速度，可能是因为这在内部使用了忽略坐标交换的本机调用。
查看旋转
- 也需要旋转每个子视图的黑客。
- 如果要读取其他坐标，则必须交换轴。

score 0 · Accepted Answer

甚至我在通过交换 X 和 Y 使 ViewPager 垂直时也面临同样的问题。它一点也不顺畅。

那是因为它曾经只在滑动角度小于 7.125 度 = arctan (1/8) 而拦截和 14 度 = arctan (1/4) 而触摸时起作用；当滑动角度小于 26.565 度 = arctan (1/2) 而截距和 45 度 = arctan (1) 时触摸时，原始 ViewPager 水平一项工作。

这就是为什么我复制了 Android support-core-ui 的代码并将值移动到变量，我使用反射相乘。

请在https://github.com/deepakmishra/verticalviewpager找到代码和自述文件，在https://github.com/deepakmishra/verticalviewpager/blob/master/app/src/main/java/com/viewpager/VerticalViewPager找到 VerticalViewPager .java

score 0 · Accepted Answer

0

更好的方法是将 viewpager 旋转 90 度，并使用 constraintLayout 调整位置。

于 2018-06-28T05:57:52.233 回答

score 0 · Accepted Answer

这是一个垂直可滚动的 ViewPager 实现。与 RecyclerView 和 ListView 配合得很好。国冲/VerticalViewPager。

使用 ViewPager.PageTransformer 使 ViewPager 垂直滚动，同时还提供了一个 View.OnTouchListener 来处理滚动冲突。

/**
 * 1.dispatch ACTION_DOWN,ACTION_UP,ACTION_CANCEL to child<br>
 * 2.hack ACTION_MOVE
 *
 * @param v
 * @param e
 * @return
 */
@Override
public boolean onTouch(View v, MotionEvent e) {
    Log.i(TAG, "onTouchEvent " + ", action " + e.getAction() + ", e.rawY " + e.getRawY() + ",lastMotionY " + lastMotionY + ",downY " + downY);
    switch (e.getAction()) {
        case MotionEvent.ACTION_DOWN:
            downY = e.getRawY();
            break;
        case MotionEvent.ACTION_MOVE:

            if (downY == Float.MIN_VALUE && lastMotionY == Float.MIN_VALUE) {
                //not start from MOTION_DOWN, the child dispatch this first motion
                downY = e.getRawY();
                break;
            }

            float diff = e.getRawY() - (lastMotionY == Float.MIN_VALUE ? downY : lastMotionY);
            lastMotionY = e.getRawY();
            diff = diff / 2; //slow down viewpager scroll
            Log.e(TAG, "scrollX " + dummyViewPager.getScrollX() + ",basescrollX " + dummyViewPager.getBaseScrollX());

            if (dummyViewPager.getScrollX() != dummyViewPager.getBaseScrollX()) {
                if (fakeDragVp(v, e, diff)) return true;
            } else {
                if (ViewCompat.canScrollVertically(v, (-diff) > 0 ? 1 : -1)) {
                    Log.e(TAG, "scroll vertically  " + diff + ", move.lastMotionY " + e.getY());
                    break;
                } else {
                    dummyViewPager.beginFakeDrag();
                    fakeDragVp(v, e, diff);
                    adjustDownMotion(v, e);
                    return true;
                }
            }

            break;
        case MotionEvent.ACTION_UP:
        case MotionEvent.ACTION_CANCEL:
            if (dummyViewPager.isFakeDragging()) {
                try {
                    dummyViewPager.endFakeDrag();
                } catch (Exception e1) {
                    Log.e(TAG, "", e1);
                }
            }
            reset();
            break;
    }

    return false;
}

score 0 · Accepted Answer

There's actually already one in the Android source. I've modified it to work better though:

package com.crnlgcs.sdk.widgets;



import android.content.Context;
import android.support.v4.view.ViewConfigurationCompat;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewParent;

public class VerticalViewPager extends ViewPager {
    private static final String TAG = "VerticalViewPager";
    private static final boolean DEBUG = true;

    private float mLastMotionX;
    private float mLastMotionY;
    private float mTouchSlop;
    private boolean mVerticalDrag;
    private boolean mHorizontalDrag;

    // Vertical transit page transformer
    private final ViewPager.PageTransformer mPageTransformer = new ViewPager.PageTransformer() {
        @Override
        public void transformPage(View view, float position) {
            final int pageWidth = view.getWidth();
            final int pageHeight = view.getHeight();
            if (position < -1) {
                // This page is way off-screen to the left.
                view.setAlpha(0);
            } else if (position <= 1) {
                view.setAlpha(1);
                // Counteract the default slide transition
                view.setTranslationX(pageWidth * -position);
                // set Y position to swipe in from top
                float yPosition = position * pageHeight;
                view.setTranslationY(yPosition);
            } else {
                // This page is way off-screen to the right.
                view.setAlpha(0);
            }
        }
    };

    public VerticalViewPager(Context context) {
        super(context, null);
    }

    public VerticalViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
        final ViewConfiguration configuration = ViewConfiguration.get(context);
        mTouchSlop = ViewConfigurationCompat.getScaledPagingTouchSlop(configuration);
        init();
    }

    private void init() {
        // Make page transit vertical
        setPageTransformer(true, mPageTransformer);
        // Get rid of the overscroll drawing that happens on the left and right (the ripple)
        setOverScrollMode(View.OVER_SCROLL_NEVER);
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {

        final float x = ev.getX();
        final float y = ev.getY();

        if (DEBUG) Log.v(TAG, "onTouchEvent " + x + ", " + y);

        switch (ev.getAction()) {
            case MotionEvent.ACTION_DOWN: {
                mLastMotionX = x;
                mLastMotionY = y;
                if (!super.onTouchEvent(ev))
                    return false;
                return verticalDrag(ev);
            }
            case MotionEvent.ACTION_MOVE: {
                final float xDiff = Math.abs(x - mLastMotionX);
                final float yDiff = Math.abs(y - mLastMotionY);
                if (!mHorizontalDrag && !mVerticalDrag) {
                    if (xDiff > mTouchSlop && xDiff > yDiff) { // Swiping left and right
                        mHorizontalDrag = true;
                    } else if (yDiff > mTouchSlop && yDiff > xDiff) { //Swiping up and down
                        mVerticalDrag = true;
                    }
                }
                if (mHorizontalDrag) {
                    return super.onTouchEvent(ev);
                } else if (mVerticalDrag) {
                    return verticalDrag(ev);
                }
            }
            case MotionEvent.ACTION_UP: {
                if (mHorizontalDrag) {
                    mHorizontalDrag = false;
                    return super.onTouchEvent(ev);
                }
                if (mVerticalDrag) {
                    mVerticalDrag = false;
                    return verticalDrag(ev);
                }
            }
        }
        // Set both flags to false in case user lifted finger in the parent view pager
        mHorizontalDrag = false;
        mVerticalDrag = false;

        return false;
    }


    private boolean verticalDrag(MotionEvent ev) {
        final float x = ev.getX();
        final float y = ev.getY();
        ev.setLocation(y, x);
        return super.onTouchEvent(ev);
    }
}

android - Android：垂直 ViewPager

14 回答 14

垂直视图分页器

完整示例

XML

代码

完成的

也可以看看

垂直视图分页器

水平视图分页器

Related

Reference