recyclerview最简单的滑动删除

1.项目引入SwipeItemLayout

package com.dengyun.dianshang.pulse;import android.content.Context;import android.support.v4.view.ViewCompat;import android.support.v7.widget.RecyclerView;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.view.VelocityTracker;import android.view.View;import android.view.ViewConfiguration;import android.view.ViewGroup;import android.view.ViewParent;import android.view.animation.Interpolator;import android.widget.Scroller;/** * recyclerview滑动删除类 */public class SwipeItemLayout extends ViewGroup {    enum Mode{        RESET,DRAG,FLING,TAP    }    private Mode mTouchMode;    private ViewGroup mMainView;    private ViewGroup mSideView;    private ScrollRunnable mScrollRunnable;    private int mScrollOffset;    private int mMaxScrollOffset;    private boolean mInLayout;    private boolean mIsLaidOut;    public SwipeItemLayout(Context context) {        this(context,null);    }    public SwipeItemLayout(Context context, AttributeSet attrs) {        super(context, attrs);        mTouchMode = Mode.RESET;        mScrollOffset = 0;        mIsLaidOut = false;        mScrollRunnable = new ScrollRunnable(context);    }    public boolean isOpen(){        return mScrollOffset !=0;    }    Mode getTouchMode(){        return mTouchMode;    }    void setTouchMode(Mode mode){        switch (mTouchMode){            case FLING:                mScrollRunnable.abort();                break;            case RESET:                break;        }        mTouchMode = mode;    }    public void open(){        if(mScrollOffset!=-mMaxScrollOffset){            //正在open，不需要处理            if(mTouchMode== Mode.FLING && mScrollRunnable.isScrollToLeft())                return;            //当前正在向右滑，abort            if(mTouchMode== Mode.FLING /*&& !mScrollRunnable.mScrollToLeft*/)                mScrollRunnable.abort();            mScrollRunnable.startScroll(mScrollOffset,-mMaxScrollOffset);        }    }    public void close(){        if(mScrollOffset!=0){            //正在close，不需要处理            if(mTouchMode== Mode.FLING && !mScrollRunnable.isScrollToLeft())                return;            //当前正向左滑，abort            if(mTouchMode== Mode.FLING /*&& mScrollRunnable.mScrollToLeft*/)                mScrollRunnable.abort();            mScrollRunnable.startScroll(mScrollOffset,0);        }    }    void fling(int xVel){        mScrollRunnable.startFling(mScrollOffset,xVel);    }    void revise(){        if(mScrollOffset<-mMaxScrollOffset/2)            open();        else            close();    }    boolean trackMotionScroll(int deltaX){        if(deltaX==0)            return false;        boolean over = false;        int newLeft = mScrollOffset+deltaX;        if((deltaX>0 && newLeft>0) || (deltaX<0 && newLeft<-mMaxScrollOffset)){            over = true;            newLeft = Math.min(newLeft,0);            newLeft = Math.max(newLeft,-mMaxScrollOffset);        }        offsetChildrenLeftAndRight(newLeft-mScrollOffset);        mScrollOffset = newLeft;        return over;    }    private boolean ensureChildren(){        int childCount = getChildCount();        if(childCount!=2)            return false;        View childView = getChildAt(0);        if(!(childView instanceof ViewGroup))            return false;        mMainView = (ViewGroup) childView;        childView = getChildAt(1);        if(!(childView instanceof ViewGroup))            return false;        mSideView = (ViewGroup) childView;        return true;    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        if(!ensureChildren())            throw new RuntimeException("SwipeItemLayout的子视图不符合规定");        int widthMode = MeasureSpec.getMode(widthMeasureSpec);        int widthSize = MeasureSpec.getSize(widthMeasureSpec);        int heightMode = MeasureSpec.getMode(heightMeasureSpec);        int heightSize = MeasureSpec.getSize(heightMeasureSpec);        MarginLayoutParams lp = null;        int horizontalMargin,verticalMargin;        int horizontalPadding = getPaddingLeft()+getPaddingRight();        int verticalPadding = getPaddingTop()+getPaddingBottom();        lp = (MarginLayoutParams) mMainView.getLayoutParams();        horizontalMargin = lp.leftMargin+lp.rightMargin;        verticalMargin = lp.topMargin+lp.bottomMargin;        measureChildWithMargins(mMainView,                widthMeasureSpec,horizontalMargin+horizontalPadding,                heightMeasureSpec,verticalMargin+verticalPadding);        if(widthMode== MeasureSpec.AT_MOST)            widthSize = Math.min(widthSize,mMainView.getMeasuredWidth()+horizontalMargin+horizontalPadding);        else if(widthMode== MeasureSpec.UNSPECIFIED)            widthSize = mMainView.getMeasuredWidth()+horizontalMargin+horizontalPadding;        if(heightMode== MeasureSpec.AT_MOST)            heightSize = Math.min(heightSize,mMainView.getMeasuredHeight()+verticalMargin+verticalPadding);        else if(heightMode== MeasureSpec.UNSPECIFIED)            heightSize = mMainView.getMeasuredHeight()+verticalMargin+verticalPadding;        setMeasuredDimension(widthSize,heightSize);        //side layout大小为自身实际大小        lp = (MarginLayoutParams) mSideView.getLayoutParams();        verticalMargin = lp.topMargin+lp.bottomMargin;        mSideView.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),                MeasureSpec.makeMeasureSpec(getMeasuredHeight()-verticalMargin-verticalPadding, MeasureSpec.EXACTLY));    }    @Override    protected void onLayout(boolean changed, int l, int t, int r, int b) {        if(!ensureChildren())            throw new RuntimeException("SwipeItemLayout的子视图不符合规定");        mInLayout = true;        int pl = getPaddingLeft();        int pt = getPaddingTop();        int pr = getPaddingRight();        int pb = getPaddingBottom();        MarginLayoutParams mainLp = (MarginLayoutParams) mMainView.getLayoutParams();        MarginLayoutParams sideParams = (MarginLayoutParams) mSideView.getLayoutParams();        int childLeft = pl+mainLp.leftMargin;        int childTop = pt+mainLp.topMargin;        int childRight = getWidth()-(pr+mainLp.rightMargin);        int childBottom = getHeight()-(mainLp.bottomMargin+pb);        mMainView.layout(childLeft,childTop,childRight,childBottom);        childLeft = childRight+sideParams.leftMargin;        childTop = pt+sideParams.topMargin;        childRight = childLeft+sideParams.leftMargin+sideParams.rightMargin+mSideView.getMeasuredWidth();        childBottom = getHeight()-(sideParams.bottomMargin+pb);        mSideView.layout(childLeft,childTop,childRight,childBottom);        mMaxScrollOffset = mSideView.getWidth()+sideParams.leftMargin+sideParams.rightMargin;        mScrollOffset = mScrollOffset<-mMaxScrollOffset/2 ? -mMaxScrollOffset:0;        offsetChildrenLeftAndRight(mScrollOffset);        mInLayout = false;        mIsLaidOut = true;    }    void offsetChildrenLeftAndRight(int delta){        ViewCompat.offsetLeftAndRight(mMainView,delta);        ViewCompat.offsetLeftAndRight(mSideView,delta);    }    @Override    public void requestLayout() {        if (!mInLayout) {            super.requestLayout();        }    }    @Override    protected LayoutParams generateDefaultLayoutParams() {        return new MarginLayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);    }    @Override    protected LayoutParams generateLayoutParams(LayoutParams p) {        return p instanceof MarginLayoutParams ? p : new MarginLayoutParams(p);    }    @Override    protected boolean checkLayoutParams(LayoutParams p) {        return p instanceof MarginLayoutParams && super.checkLayoutParams(p);    }    @Override    public LayoutParams generateLayoutParams(AttributeSet attrs) {        return new MarginLayoutParams(getContext(), attrs);    }    @Override    protected void onAttachedToWindow() {        super.onAttachedToWindow();        if(mScrollOffset!=0 && mIsLaidOut){            offsetChildrenLeftAndRight(-mScrollOffset);            mScrollOffset = 0;        }else            mScrollOffset = 0;    }    @Override    protected void onDetachedFromWindow() {        super.onDetachedFromWindow();        if(mScrollOffset!=0 && mIsLaidOut){            offsetChildrenLeftAndRight(-mScrollOffset);            mScrollOffset = 0;        }else            mScrollOffset = 0;        removeCallbacks(mScrollRunnable);    }    @Override    public boolean onInterceptTouchEvent(MotionEvent ev) {        final int action = ev.getActionMasked();        //click main view，但是它处于open状态，所以，不需要点击效果，直接拦截不调用click listener        switch (action) {            case MotionEvent.ACTION_DOWN: {                final int x = (int) ev.getX();                final int y = (int) ev.getY();                View pointView = findTopChildUnder(this,x,y);                if(pointView!=null && pointView==mMainView && mScrollOffset !=0)                    return true;                break;            }            case MotionEvent.ACTION_MOVE:            case MotionEvent.ACTION_CANCEL:                break;            case MotionEvent.ACTION_UP:{                final int x = (int) ev.getX();                final int y = (int) ev.getY();                View pointView = findTopChildUnder(this,x,y);                if(pointView!=null && pointView==mMainView && mTouchMode== Mode.TAP && mScrollOffset !=0)                    return true;            }        }        return false;    }    @Override    public boolean onTouchEvent(MotionEvent ev) {        final int action = ev.getActionMasked();        //click main view，但是它处于open状态，所以，不需要点击效果，直接拦截不调用click listener        switch (action) {            case MotionEvent.ACTION_DOWN: {                final int x = (int) ev.getX();                final int y = (int) ev.getY();                View pointView = findTopChildUnder(this,x,y);                if(pointView!=null && pointView==mMainView && mScrollOffset !=0)                    return true;                break;            }            case MotionEvent.ACTION_MOVE:            case MotionEvent.ACTION_CANCEL:                break;            case MotionEvent.ACTION_UP:{                final int x = (int) ev.getX();                final int y = (int) ev.getY();                View pointView = findTopChildUnder(this,x,y);                if(pointView!=null && pointView==mMainView && mTouchMode== Mode.TAP && mScrollOffset !=0) {                    close();                    return true;                }            }        }        return false;    }    @Override    protected void onVisibilityChanged(View changedView, int visibility) {        super.onVisibilityChanged(changedView, visibility);        if(getVisibility()!= View.VISIBLE){            mScrollOffset = 0;            invalidate();        }    }    private static final Interpolator sInterpolator = new Interpolator() {        @Override        public float getInterpolation(float t) {            t -= 1.0f;            return t * t * t * t * t + 1.0f;        }    };    class ScrollRunnable implements Runnable {        private static final int FLING_DURATION = 200;        private Scroller mScroller;        private boolean mAbort;        private int mMinVelocity;        private boolean mScrollToLeft;        ScrollRunnable(Context context){            mScroller = new Scroller(context,sInterpolator);            mAbort = false;            mScrollToLeft = false;            ViewConfiguration configuration = ViewConfiguration.get(context);            mMinVelocity = configuration.getScaledMinimumFlingVelocity();        }        void startScroll(int startX,int endX){            if(startX!=endX){                Log.e("scroll - startX - endX",""+startX+" "+endX);                setTouchMode(Mode.FLING);                mAbort = false;                mScrollToLeft = endX;                mScroller.startScroll(startX,0,endX-startX,0, 400);                ViewCompat.postOnAnimation(SwipeItemLayout.this,this);            }        }        void startFling(int startX,int xVel){            Log.e("fling - startX",""+startX);            if(xVel>mMinVelocity && startX!=0) {                startScroll(startX, 0);                return;            }            if(xVel<-mMinVelocity && startX!=-mMaxScrollOffset) {                startScroll(startX, -mMaxScrollOffset);                return;            }            startScroll(startX,startX>-mMaxScrollOffset/2 ? 0:-mMaxScrollOffset);        }        void abort(){            if(!mAbort){                mAbort = true;                if(!mScroller.isFinished()){                    mScroller.abortAnimation();                    removeCallbacks(this);                }            }        }        //是否正在滑动需要另外判断        boolean isScrollToLeft(){            return mScrollToLeft;        }        @Override        public void run() {            Log.e("abort", Boolean.toString(mAbort));            if(!mAbort){                boolean more = mScroller.computeScrollOffset();                int curX = mScroller.getCurrX();                Log.e("curX",""+curX);                boolean atEdge = trackMotionScroll(curX-mScrollOffset);                if(more && !atEdge) {                    ViewCompat.postOnAnimation(SwipeItemLayout.this, this);                    return;                }                if(atEdge){                    removeCallbacks(this);                    if(!mScroller.isFinished())                        mScroller.abortAnimation();                    setTouchMode(Mode.RESET);                }                if(!more){                    setTouchMode(Mode.RESET);                    //绝对不会出现这种意外的！！！可以注释掉                    if(mScrollOffset!=0){                        if(Math.abs(mScrollOffset)>mMaxScrollOffset/2)                            mScrollOffset = -mMaxScrollOffset;                        else                            mScrollOffset = 0;                        ViewCompat.postOnAnimation(SwipeItemLayout.this,this);                    }                }            }        }    }    public static class OnSwipeItemTouchListener implements RecyclerView.OnItemTouchListener {        private SwipeItemLayout mCaptureItem;        private float mLastMotionX;        private float mLastMotionY;        private VelocityTracker mVelocityTracker;        private int mActivePointerId;        private int mTouchSlop;        private int mMaximumVelocity;        private boolean mDealByParent;        private boolean mIsProbeParent;        public OnSwipeItemTouchListener(Context context){            ViewConfiguration configuration = ViewConfiguration.get(context);            mTouchSlop = configuration.getScaledTouchSlop();            mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();            mActivePointerId = -1;            mDealByParent = false;            mIsProbeParent = false;        }        @Override        public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent ev) {            if(mIsProbeParent)                return false;            boolean intercept = false;            final int action = ev.getActionMasked();            if (mVelocityTracker == null) {                mVelocityTracker = VelocityTracker.obtain();            }            mVelocityTracker.addMovement(ev);            switch (action){                case MotionEvent.ACTION_DOWN:{                    mActivePointerId = ev.getPointerId(0);                    final float x = ev.getX();                    final float y = ev.getY();                    mLastMotionX = x;                    mLastMotionY = y;                    boolean pointOther = false;                    SwipeItemLayout pointItem = null;                    //首先知道ev针对的是哪个item                    View pointView = findTopChildUnder(rv,(int)x,(int)y);                    if(pointView==null || !(pointView instanceof SwipeItemLayout)){                        //可能是head view或bottom view                        pointOther = true;                    }else                        pointItem = (SwipeItemLayout) pointView;                    //此时的pointOther=true，意味着点击的view为空或者点击的不是item                    //还没有把点击的是item但是不是capture item给过滤出来                    if(!pointOther && (mCaptureItem==null || mCaptureItem!=pointItem))                        pointOther = true;                    //点击的是capture item                    if(!pointOther){                        Mode touchMode = mCaptureItem.getTouchMode();                        //如果它在fling，就转为drag                        //需要拦截，并且requestDisallowInterceptTouchEvent                        boolean disallowIntercept = false;                        if(touchMode== Mode.FLING){                            mCaptureItem.setTouchMode(Mode.DRAG);                            disallowIntercept = true;                            intercept = true;                        }else {//如果是expand的，就不允许parent拦截                            mCaptureItem.setTouchMode(Mode.TAP);                            if(mCaptureItem.isOpen())                                disallowIntercept = true;                        }                        if(disallowIntercept){                            final ViewParent parent = rv.getParent();                            if (parent!= null)                                parent.requestDisallowInterceptTouchEvent(true);                        }                    }else{//capture item为null或者与point item不一样                        //直接将其close掉                        if(mCaptureItem!=null && mCaptureItem.isOpen()) {                            mCaptureItem.close();                            mCaptureItem = null;                            intercept = true;                        }                        if(pointItem!=null) {                            mCaptureItem = pointItem;                            mCaptureItem.setTouchMode(Mode.TAP);                        }else                            mCaptureItem = null;                    }                    //如果parent处于fling状态，此时，parent就会转为drag。此时，应该将后续move都交给parent处理                    mIsProbeParent = true;                    mDealByParent = rv.onInterceptTouchEvent(ev);                    mIsProbeParent = false;                    if(mDealByParent)                        intercept = false;                    break;                }                case MotionEvent.ACTION_POINTER_DOWN: {                    final int actionIndex = ev.getActionIndex();                    mActivePointerId = ev.getPointerId(actionIndex);                    mLastMotionX = ev.getX(actionIndex);                    mLastMotionY = ev.getY(actionIndex);                    break;                }                case MotionEvent.ACTION_POINTER_UP: {                    final int actionIndex = ev.getActionIndex();                    final int pointerId = ev.getPointerId(actionIndex);                    if (pointerId == mActivePointerId) {                        final int newIndex = actionIndex == 0 ? 1 : 0;                        mActivePointerId = ev.getPointerId(newIndex);                        mLastMotionX = ev.getX(newIndex);                        mLastMotionY = ev.getY(newIndex);                    }                    break;                }                //down时，已经将capture item定下来了。所以，后面可以安心考虑event处理                case MotionEvent.ACTION_MOVE: {                    final int activePointerIndex = ev.findPointerIndex(mActivePointerId);                    if (activePointerIndex == -1)                        break;                    //在down时，就被认定为parent的drag，所以，直接交给parent处理即可                    if(mDealByParent) {                        if(mCaptureItem!=null && mCaptureItem.isOpen())                            mCaptureItem.close();                        return false;                    }                    final int x = (int) (ev.getX(activePointerIndex)+.5f);                    final int y = (int) ((int) ev.getY(activePointerIndex)+.5f);                    int deltaX = (int) (x - mLastMotionX);                    int deltaY = (int)(y-mLastMotionY);                    final int xDiff = Math.abs(deltaX);                    final int yDiff = Math.abs(deltaY);                    if(mCaptureItem!=null && !mDealByParent){                        Mode touchMode = mCaptureItem.getTouchMode();                        if(touchMode== Mode.TAP ){                            //如果capture item是open的，下拉有两种处理方式：                            //  1、下拉后，直接close item                            //  2、只要是open的，就拦截所有它的消息，这样如果点击open的，就只能滑动该capture item                            //网易邮箱，在open的情况下，下拉直接close                            //QQ，在open的情况下，下拉也是close。但是，做的不够好，没有达到该效果。                            if(xDiff>mTouchSlop && xDiff>yDiff){                                mCaptureItem.setTouchMode(Mode.DRAG);                                final ViewParent parent = rv.getParent();                                parent.requestDisallowInterceptTouchEvent(true);                                deltaX = deltaX>0 ? deltaX-mTouchSlop:deltaX+mTouchSlop;                            }else{// if(yDiff>mTouchSlop){                                mIsProbeParent = true;                                boolean isParentConsume = rv.onInterceptTouchEvent(ev);                                mIsProbeParent = false;                                if(isParentConsume){                                    //表明不是水平滑动，即不判定为SwipeItemLayout的滑动                                    //但是，可能是下拉刷新SwipeRefreshLayout或者RecyclerView的滑动                                    //一般的下拉判定，都是yDiff>mTouchSlop，所以，此处这么写不会出问题                                    //这里这么做以后，如果判定为下拉，就直接close                                    mDealByParent = true;                                    mCaptureItem.close();                                }                            }                        }                        touchMode = mCaptureItem.getTouchMode();                        if(touchMode== Mode.DRAG){                            intercept = true;                            mLastMotionX = x;                            mLastMotionY = y;                            //对capture item进行拖拽                            mCaptureItem.trackMotionScroll(deltaX);                        }                    }                    break;                }                case MotionEvent.ACTION_UP:                    if(mCaptureItem!=null){                        Mode touchMode = mCaptureItem.getTouchMode();                        if(touchMode== Mode.DRAG){                            final VelocityTracker velocityTracker = mVelocityTracker;                            velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);                            int xVel = (int) velocityTracker.getXVelocity(mActivePointerId);                            mCaptureItem.fling(xVel);                            intercept = true;                        }                    }                    cancel();                    break;                case MotionEvent.ACTION_CANCEL:                    if(mCaptureItem!=null)                        mCaptureItem.revise();                    cancel();                    break;            }            return intercept;        }        @Override        public void onTouchEvent(RecyclerView rv, MotionEvent ev) {            final int action = ev.getActionMasked();            final int actionIndex = ev.getActionIndex();            if (mVelocityTracker == null) {                mVelocityTracker = VelocityTracker.obtain();            }            mVelocityTracker.addMovement(ev);            switch (action){                case MotionEvent.ACTION_POINTER_DOWN:                    mActivePointerId = ev.getPointerId(actionIndex);                    mLastMotionX = ev.getX(actionIndex);                    mLastMotionY = ev.getY(actionIndex);                    break;                case MotionEvent.ACTION_POINTER_UP:                    final int pointerId = ev.getPointerId(actionIndex);                    if(pointerId==mActivePointerId){                        final int newIndex = actionIndex == 0 ? 1 : 0;                        mActivePointerId = ev.getPointerId(newIndex);                        mLastMotionX = ev.getX(newIndex);                        mLastMotionY = ev.getY(newIndex);                    }                    break;                //down时，已经将capture item定下来了。所以，后面可以安心考虑event处理                case MotionEvent.ACTION_MOVE: {                    final int activePointerIndex = ev.findPointerIndex(mActivePointerId);                    if (activePointerIndex == -1)                        break;                    final float x = ev.getX(activePointerIndex);                    final float y = (int) ev.getY(activePointerIndex);                    int deltaX = (int) (x - mLastMotionX);                    if(mCaptureItem!=null && mCaptureItem.getTouchMode()== Mode.DRAG){                        mLastMotionX = x;                        mLastMotionY = y;                        //对capture item进行拖拽                        mCaptureItem.trackMotionScroll(deltaX);                    }                    break;                }                case MotionEvent.ACTION_UP:                    if(mCaptureItem!=null){                        Mode touchMode = mCaptureItem.getTouchMode();                        if(touchMode== Mode.DRAG){                            final VelocityTracker velocityTracker = mVelocityTracker;                            velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);                            int xVel = (int) velocityTracker.getXVelocity(mActivePointerId);                            mCaptureItem.fling(xVel);                        }                    }                    cancel();                    break;                case MotionEvent.ACTION_CANCEL:                    if(mCaptureItem!=null)                        mCaptureItem.revise();                    cancel();                    break;            }        }        @Override        public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {}        void cancel(){            mDealByParent = false;            mActivePointerId = -1;            if(mVelocityTracker!=null){                mVelocityTracker.recycle();                mVelocityTracker = null;            }        }    }    static View findTopChildUnder(ViewGroup parent, int x, int y) {        final int childCount = parent.getChildCount();        for (int i = childCount - 1; i >= 0; i--) {            final View child = parent.getChildAt(i);            if (x >= child.getLeft() && x < child.getRight()                    && y >= child.getTop() && y < child.getBottom()) {                return child;            }        }        return null;    }    public static void closeAllItems(RecyclerView recyclerView){        for(int i=0;i;i++){            View child = recyclerView.getChildAt(i);            if(child instanceof SwipeItemLayout){                SwipeItemLayout swipeItemLayout = (SwipeItemLayout) child;                if(swipeItemLayout.isOpen())                    swipeItemLayout.close();            }        }    }}

2、item布局用swipeitemlayout作为根布局，滑动删除的布局也写在布局里面

<?xml version="1.0" encoding="utf-8"?>xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="60dp"    android:orientation="horizontal">            android:id="@+id/ll_record"        android:layout_width="match_parent"        android:layout_height="60dp"        android:background="#FFFFFF"        android:gravity="center_vertical"        android:orientation="horizontal">                    android:id="@+id/tv_checkrecord_time"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:gravity="center"            android:singleLine="true"            android:paddingLeft="10dp"            android:paddingRight="10dp"            android:text="10-30 10:30"            android:textColor="#666666"            android:textSize="14sp" />                    android:id="@+id/tv_checkrecord_hand"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:gravity="center"            android:text="右手"            android:singleLine="true"            android:paddingLeft="10dp"            android:paddingRight="10dp"            android:textColor="#666666"            android:textSize="14sp" />                    android:id="@+id/tv_checkrecord_heartrate"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:gravity="center"            android:singleLine="true"            android:paddingLeft="10dp"            android:paddingRight="10dp"            android:text="60"            android:textColor="#666666"            android:textSize="14sp" />                android:layout_width="wrap_content"        android:layout_height="match_parent"        android:orientation="horizontal"        android:gravity="center_vertical">                    android:id="@+id/tv_item_delete"            android:layout_width="75dp"            android:layout_height="match_parent"            android:background="#ef508d"            android:text="删除"            android:textSize="15sp"            android:textColor="#FFFFFF"            android:gravity="center"/>

3.代码中设置如下

recyclerView.addOnItemTouchListener(new SwipeItemLayout.OnSwipeItemTouchListener(getActivity()));recyclerView.addItemDecoration(new SpaceItemDecoration(2));

public class SpaceItemDecoration extends RecyclerView.ItemDecoration{    int mSpace;    @Override    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {        super.getItemOffsets(outRect, view, parent, state);        outRect.left = mSpace;        outRect.right = mSpace;        outRect.bottom = mSpace;        if (parent.getChildAdapterPosition(view) == 0) {            outRect.top = mSpace;        }    }    public SpaceItemDecoration(int space) {        this.mSpace = space;    }}

class RecordAdapter extends RecyclerView.Adapter {    Context mContext;    List mList;    RecyclerItemClickListener recyclerItemClickListener;    public RecordAdapter(Context mContext, List mList, RecyclerItemClickListener recyclerItemClickListener) {        this.mContext = mContext;        this.mList = mList;        this.recyclerItemClickListener = recyclerItemClickListener;    }    @Override    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view=LayoutInflater.from(mContext).inflate(R.layout.layout_checkrecord_item,parent,false);        return new ViewHolder(view);    }    @Override    public void onBindViewHolder(ViewHolder holder, final int position) {       holder.tvTime.setText(mList.get(position).time);       holder.tvHand.setText(mList.get(position).hand);       holder.tvHeartRate.setText(mList.get(position).heartrate);    }    @Override    public int getItemCount() {        return mList.size();    }    class ViewHolder extends RecyclerView.ViewHolder{       TextView tvTime,tvHand,tvHeartRate,tvDelete;       LinearLayout llRecord;       public ViewHolder(View itemView) {           super(itemView);           tvTime=itemView.findViewById(R.id.tv_checkrecord_time);           tvHand=itemView.findViewById(R.id.tv_checkrecord_hand);           tvHeartRate=itemView.findViewById(R.id.tv_checkrecord_heartrate);           tvDelete=itemView.findViewById(R.id.tv_item_delete);           tvDelete.setOnClickListener(new View.OnClickListener() {               @Override               public void onClick(View v) {                   recyclerItemClickListener.deleteClick(getAdapterPosition());               }           });           llRecord=itemView.findViewById(R.id.ll_record);           llRecord.setOnClickListener(new View.OnClickListener() {               @Override               public void onClick(View v) {                   recyclerItemClickListener.itemClick(getAdapterPosition());               }           });       }   }}

activity实现RecycleritemClickListener接口，完成点击和删除的操作

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