android仿滴滴司机端滑动接到乘客，送达乘客的滑动Button

public class SlideRightViewDragHelper extends LinearLayout {    private ViewDragHelper viewDragHelper;    private View child;    private Point childPosition = new Point();    private Point childEndPosition = new Point();    private OnReleasedListener onReleasedListener;    private int oldX;    private int screenWidth;//屏幕宽    private int screenWidthto = 70;//当前滑动比例  大于这个值时滑动完成、小于时回弹    public SlideRightViewDragHelper(Context context, AttributeSet attrs) {        super(context, attrs);        screenWidth = getResources().getDisplayMetrics().widthPixels;//获取屏幕宽        //新建viewDragHelper ,viewGroup, 灵敏度，回调(子view的移动)        viewDragHelper = ViewDragHelper.create(this, 1.0f, new ViewDragHelper.Callback() {            @Override            public boolean tryCaptureView(View child, int pointerId) {                return true;            }            @Override            public int clampViewPositionHorizontal(View child, int left, int dx) {                oldX = left;                return Math.max(0, left);            }            @Override            public void onViewReleased(View releasedChild, float xvel, float yvel) {                //滑动比例大于70，视为滑动完成                if ((oldX*100/screenWidth) > screenWidthto) {                    viewDragHelper.settleCapturedViewAt(childPosition.x, childPosition.y); //不管是滑动成功还是失败，都必须反弹                    invalidate();                    //滑动完成的回调                    if (onReleasedListener != null){                        onReleasedListener.onReleased();                    }                    //下面是不反弹的代码，根据自己的需求自行改动                    //                    viewDragHelper.settleCapturedViewAt(childEndPosition.x, childEndPosition.y);不反弹的代码//                    invalidate(); //必须刷新,因为其内部使用的是mScroller.startScroll，所以别忘了需要invalidate()以及结合computeScroll方法一起。                } else {                    viewDragHelper.settleCapturedViewAt(childPosition.x, childPosition.y); //反弹                    invalidate();                }                super.onViewReleased(releasedChild, xvel, yvel);            }        });    }    @Override    protected void onFinishInflate() {        super.onFinishInflate();        child = getChildAt(0);    }    @Override   //用viewDragHelper拦截-true    public boolean onInterceptTouchEvent(MotionEvent ev) {        return viewDragHelper.shouldInterceptTouchEvent(ev);    }    @Override  //viewDragHelper拦截事件    public boolean onTouchEvent(MotionEvent event) {        viewDragHelper.processTouchEvent(event);        return true;    }    @Override    protected void onLayout(boolean changed, int l, int t, int r, int b) {        super.onLayout(changed, l, t, r, b);        //定位一开始的坐标        childPosition.x = child.getLeft();        childPosition.y = child.getTop();        //滑动成功后定位坐标        childEndPosition.x = child.getRight();        childEndPosition.y = child.getTop();    }    @Override    public void computeScroll() {        super.computeScroll();        if (viewDragHelper.continueSettling(true)) {            invalidate();        }    }    //调用此方法进行回调    public void setOnReleasedListener(OnReleasedListener onReleasedListener) {        this.onReleasedListener = onReleasedListener;    }//滑动完成的回调接口    public interface OnReleasedListener {        void onReleased();    }}

效果图,看着还是不错的

滑动状态的效果

使用CardView进行圆角裁剪

滑动完成的回调方法，自己实现即可

slideRightView.setOnReleasedListener();

当然也可以不使用CardView进行裁剪，根据自己的项目需求使用。

打完收工。。。

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