参考文章
此方案使用动画方式实现，只适合轻量级别的弹幕滚动效果实现，数据量过大时会出现内存激增的情况。

效果：

自定义view代码

public class TumbleLayout extends ViewGroup {

    private final String TAG = "TumbleLayout";

    private int parentWidth;
    private int parentHeight;
    private long currentHshCode = 0;
    // 弹幕数据缓存池
    private DataPool dataPool = new DataPool<ContentBeen>(100);
    private DataPool userDataPool = new DataPool<ContentBeen>(10);

    private boolean isDetached = false;

    public TumbleLayout(@NonNull Context context) {
        super(context);
        initView();
    }

    public TumbleLayout(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        initView();
    }

    public TumbleLayout(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initView();
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        if (getParent() instanceof ViewGroup) {
            parentWidth = ((ViewGroup) getParent()).getWidth();
            parentHeight = ((ViewGroup) getParent()).getHeight();
        }
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int viewWidth = getViewWidth(widthMeasureSpec);
        int viewHeight = getViewHeight(heightMeasureSpec);
        parentWidth = viewWidth;
        parentHeight = viewHeight;
        // 设置子view的宽高
        setMeasuredDimension(viewWidth, viewHeight);
    }

    @Override
    protected void onLayout(boolean changed, int l, int t, int r, int b) {
        // 宽高计算完毕 开始显示弹幕
        if (changed) {
            showNextData();
        }
    }

    @Override
    protected void onFinishInflate() {
        super.onFinishInflate();
    }

    private void initView() {
    }

    public void addUserChildView(ContentBeen contentBeen) {
        if (userDataPool != null) {
            userDataPool.release(contentBeen);
            if (!dataPool.hasNext()) {
                showNextData();
            }
        }
    }

    public void addChildView(ContentBeen contentBeen) {
        if (dataPool != null) {
            // 将数据加入队列
            dataPool.release(contentBeen);
        }
    }

    private void startAnimator(View child) {
        ObjectAnimator animator = new ObjectAnimator();
        animator.setIntValues(0, parentWidth + child.getMeasuredWidth());
        animator.setDuration(3000);
        animator.setInterpolator(new LinearInterpolator());
        animator.addUpdateListener(animation -> {
            // view已经退出 则停止所有动画 防止内存泄露
            if (isDetached) {
                animation.cancel();
                return;
            }
            int x = (int) animation.getAnimatedValue();
            int left = parentWidth - x;
            int right = parentWidth + child.getMeasuredWidth() - x;
            // 控制弹幕密集度 当上一条数据离开屏幕右侧边框时 展示下一条弹幕数据
            if (currentHshCode == child.hashCode() && right + 50 <= parentWidth) {
                // 展示下一条弹幕
                showNextData();
            }
            child.layout(left, child.getTop(), right, child.getBottom());
            if (child.getRight() <= 0) {
                // 动画结束 移除view
                removeView(child);
            }
        });
        animator.start();
    }

    private void showNextData() {
        ContentBeen acquire = null;
        if (userDataPool == null && dataPool == null) {
            return;
        }
        // 用户本地弹幕优先级最高 若有本地用户弹幕 则先展示用户弹幕
        if (userDataPool.hasNext()) {
            acquire = (ContentBeen) userDataPool.acquire();
        } else if (dataPool.hasNext()) {
            acquire = (ContentBeen) dataPool.acquire();
        }

        // 执行一下条弹幕出现
        if (acquire != null) {
            // 小于最大数量时 添加新的子view
            currentHshCode = acquire.getChildView().hashCode();
            addView(acquire.getChildView());
            int childCount = getChildCount();
            if (childCount != 0) {
                int index = childCount - 1;
                View child = getChildAt(index);
                measureMyChild(child);
                int left = parentWidth + 30;
                int num = laneNum(child);
                int top = num * child.getMeasuredHeight();
                int right = parentWidth + child.getMeasuredWidth() + 30;
                int bottom = top + child.getMeasuredHeight();
                MLog.e(TAG, "measureMyChild  hashCode = " + child.hashCode()
                        + " top = " + top + " bottom = " + bottom + " parentHeight" + getHeight());
                child.layout(left, top, right, bottom);
                startAnimator(child);
            }
        }
    }

    private int getViewWidth(int measureSpec) {
        int size = 100;
        int specSize = MeasureSpec.getSize(measureSpec);
        int specMode = MeasureSpec.getMode(measureSpec);
        if (specMode == MeasureSpec.EXACTLY) {
            size = specSize;
        } else if (specMode == MeasureSpec.AT_MOST) {
            size = Math.max(size, specSize);
        }
        return size;
    }

    private int getViewHeight(int measureSpec) {
        int size = 100;
        int specSize = MeasureSpec.getSize(measureSpec);
        int specMode = MeasureSpec.getMode(measureSpec);
        if (specMode == MeasureSpec.EXACTLY) {
            size = specSize;
        } else if (specMode == MeasureSpec.AT_MOST) {
            size = Math.max(size, specSize);
        }
        return size;
    }

    /**
     * 测量某一个child的宽高
     */
    protected void measureMyChild(View child) {
        final int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
        final int childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
        child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
    }

    /**
     * 计算随机高度值 起到随机位置展示效果
     */
    private int laneNum(View child) {
        // 计算出大概有几条泳道
        int laneCount = getHeight() / child.getMeasuredHeight();
        // 给弹幕随机分配泳道
        Random random = new Random();
        // 返回泳道编号
        return random.nextInt(laneCount);
    }

    public void destroy() {
        // 回收资源 防止泄露
        userDataPool.clean();
        dataPool.clean();
        userDataPool = null;
        dataPool = null;
    }

    @Override
    protected void onDetachedFromWindow() {
        super.onDetachedFromWindow();
        isDetached = true;
        MLog.e(TAG, "onDetachedFromWindow");
    }
}

存储数据队列的代码

public class DataPool<T> implements Pools.Pool<T> {
    private Object[] mPool;
    private int mPoolSize;

    private int l = 0;
    private int curIndex = 0;

    public DataPool(int maxPoolSize) {
        if (maxPoolSize <= 0) {
            throw new IllegalArgumentException("The max pool size must be > 0");
        }
        // 构造池对象容器
        mPool = new Object[maxPoolSize];
    }

    @Nullable
    @Override
    public T acquire() {
        // 从容器中取出对象
        if (l > 0) {
            T instance = (T) mPool[curIndex];
            mPool[curIndex] = null;
            l--;
            curIndex++;
            if(l <= 0){
                curIndex = 0;
            }
            return instance;
        }
        return null;
    }

    @Override
    public boolean release(@NonNull T instance) {
        if (isInPool(instance)) {
            throw new IllegalStateException("Already in the pool!");
        }
        // 存储对象
        if (l < mPool.length) {
            mPool[l] = instance;
            l++;
            return true;
        }
        return false;
    }

    // 判断对象是否在池中
    private boolean isInPool(@NonNull T instance) {
        // 遍历池对象
        for (int i = 0; i < l; i++) {
            if (mPool[i] == instance) {
                return true;
            }
        }
        return false;
    }

    public boolean hasNext(){
        return l > 0;
    }

    public void clean(){
        l = 0;
        curIndex = 0;
    }
}

数据格式

public class ContentBeen {
    private String content;
    private View childView;

    public ContentBeen(String content,View childView){
        this.content = content;
        this.childView = childView;
    }

    public void setChildView(View childView) {
        this.childView = childView;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public String getContent() {
        return content;
    }

    public View getChildView() {
        return childView;
    }
}

布局文件内容

	<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ui.activity.BarrageActivity">

    <com.example.app_view_model.view.TumbleLayout
        android:id="@+id/tumble_layout"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:background="@color/black">

    </com.example.app_view_model.view.TumbleLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="20dp"
        android:orientation="horizontal">

        <EditText
            android:id="@+id/txt_edit"
            android:layout_weight="1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <Button
            android:layout_weight="4"
            android:id="@+id/send_btn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="发送" />
    </LinearLayout>

</RelativeLayout>

使用方法

	// 使用方法
	addUserChildView(); // 添加用户输入弹幕
	addChildView(); // 加载数据弹幕
	destroy(); // 资源回收 此方法一定要调用 防止大量动画无法回收导致oom