List of usage examples for android.view MotionEvent ACTION_MOVE
int ACTION_MOVE
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From source file:android.support.designox.widget.BottomSheetBehavior.java
@Override public boolean onInterceptTouchEvent(CoordinatorLayout parent, V child, MotionEvent event) { if (!child.isShown()) { return false; }// w ww .jav a 2 s . com int action = MotionEventCompat.getActionMasked(event); // Record the velocity if (action == MotionEvent.ACTION_DOWN) { reset(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(event); switch (action) { case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mTouchingScrollingChild = false; mActivePointerId = MotionEvent.INVALID_POINTER_ID; // Reset the ignore flag if (mIgnoreEvents) { mIgnoreEvents = false; return false; } break; case MotionEvent.ACTION_DOWN: int initialX = (int) event.getX(); mInitialY = (int) event.getY(); View scroll = mNestedScrollingChildRef.get(); if (scroll != null && parent.isPointInChildBounds(scroll, initialX, mInitialY)) { mActivePointerId = event.getPointerId(event.getActionIndex()); mTouchingScrollingChild = true; } mIgnoreEvents = mActivePointerId == MotionEvent.INVALID_POINTER_ID && !parent.isPointInChildBounds(child, initialX, mInitialY); break; } if (!mIgnoreEvents && mViewDragHelper.shouldInterceptTouchEvent(event)) { return true; } // We have to handle cases that the ViewDragHelper does not capture the bottom sheet because // it is not the top most view of its parent. This is not necessary when the touch event is // happening over the scrolling content as nested scrolling logic handles that case. View scroll = mNestedScrollingChildRef.get(); return action == MotionEvent.ACTION_MOVE && scroll != null && !mIgnoreEvents && mState != STATE_DRAGGING && !parent.isPointInChildBounds(scroll, (int) event.getX(), (int) event.getY()) && Math.abs(mInitialY - event.getY()) > mViewDragHelper.getTouchSlop(); }
From source file:cn.ieclipse.af.view.ScrollLayout.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { if (debug) {/*from w w w . j av a 2s .c o m*/ Log.e(TAG, "onInterceptTouchEvent-slop:" + mTouchSlop); } final int action = ev.getAction(); if ((action == MotionEvent.ACTION_MOVE) && (mTouchState != TOUCH_STATE_REST)) { return true; } final float x = ev.getX(); final float y = ev.getY(); switch (action) { case MotionEvent.ACTION_MOVE: final int xDiff = (int) Math.abs(mLastMotionX - x); if (xDiff > mTouchSlop) { mTouchState = TOUCH_STATE_SCROLLING; } break; case MotionEvent.ACTION_DOWN: mLastMotionX = x; mLastMotionY = y; mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST : TOUCH_STATE_SCROLLING; break; case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: mTouchState = TOUCH_STATE_REST; break; } return mTouchState != TOUCH_STATE_REST; }
From source file:com.camnter.easyrecyclerviewsidebar.EasyRecyclerViewSidebar.java
@Override public boolean onTouchEvent(MotionEvent event) { if (this.sections == null || this.sections.size() < 1) return super.onTouchEvent(event); float eventY = event.getY(); int action = event.getAction(); if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL) { this.setBackgroundColor(Color.TRANSPARENT); this.floatView.setVisibility(INVISIBLE); return true; }//from ww w. j a v a2s .c om if (this.touchWrapArea && eventY < this.drawBeginY || eventY > this.drawEndY) { return super.onTouchEvent(event); } switch (action) { case MotionEvent.ACTION_DOWN: this.setBackgroundColor(this.viewBackground); this.floatView.setVisibility(VISIBLE); this.showFloatView(eventY); return true; case MotionEvent.ACTION_MOVE: this.showFloatView(eventY); return true; } return super.onTouchEvent(event); }
From source file:android.support.design.widget.SheetBehavior.java
@Override public boolean onInterceptTouchEvent(CoordinatorLayout parent, V child, MotionEvent event) { if (!child.isShown()) { return false; }//from w w w . ja v a 2s. c om int action = MotionEventCompat.getActionMasked(event); // Record the velocity if (action == MotionEvent.ACTION_DOWN) { reset(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(event); switch (action) { case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mTouchingScrollingChild = false; mActivePointerId = MotionEvent.INVALID_POINTER_ID; // Reset the ignore flag if (mIgnoreEvents) { mIgnoreEvents = false; return false; } break; case MotionEvent.ACTION_DOWN: mInitialY = (int) event.getY(); int initialX = (int) event.getX(); View scroll = mNestedScrollingChildRef.get(); if (scroll != null && parent.isPointInChildBounds(scroll, initialX, mInitialY)) { mActivePointerId = event.getPointerId(event.getActionIndex()); mTouchingScrollingChild = true; } mIgnoreEvents = mActivePointerId == MotionEvent.INVALID_POINTER_ID && !parent.isPointInChildBounds(child, initialX, mInitialY); break; } if (!mIgnoreEvents && mViewDragHelper.shouldInterceptTouchEvent(event)) { return true; } // We have to handle cases that the ViewDragHelper does not capture the bottom sheet because // it is not the top most view of its parent. This is not necessary when the touch event is // happening over the scrolling content as nested scrolling logic handles that case. View scroll = mNestedScrollingChildRef.get(); return action == MotionEvent.ACTION_MOVE && scroll != null && !mIgnoreEvents && mState != STATE_DRAGGING && !parent.isPointInChildBounds(scroll, (int) event.getX(), (int) event.getY()) && Math.abs(mInitialY - event.getY()) > mViewDragHelper.getTouchSlop(); }
From source file:br.com.devmix.baseapp.listener.OnSwipeableRecyclerViewTouchListener.java
private boolean handleTouchEvent(MotionEvent motionEvent) { if (mViewWidth < 2) { mViewWidth = mRecyclerView.getWidth(); }//from w w w.j a v a2 s . c o m switch (motionEvent.getActionMasked()) { case MotionEvent.ACTION_DOWN: { if (mPaused) { break; } // Find the child view that was touched (perform a hit test) Rect rect = new Rect(); int childCount = mRecyclerView.getChildCount(); int[] listViewCoords = new int[2]; mRecyclerView.getLocationOnScreen(listViewCoords); int x = (int) motionEvent.getRawX() - listViewCoords[0]; int y = (int) motionEvent.getRawY() - listViewCoords[1]; View child; for (int i = 0; i < childCount; i++) { child = mRecyclerView.getChildAt(i); child.getHitRect(rect); if (rect.contains(x, y)) { mDownView = child; break; } } if (mDownView != null && mAnimatingPosition != mRecyclerView.getChildAdapterPosition(mDownView)) { mAlpha = ViewCompat.getAlpha(mDownView); mDownX = motionEvent.getRawX(); mDownY = motionEvent.getRawY(); mDownPosition = mRecyclerView.getChildAdapterPosition(mDownView); if (mSwipeListener.canSwipe(mDownPosition)) { mVelocityTracker = VelocityTracker.obtain(); mVelocityTracker.addMovement(motionEvent); } else { mDownView = null; } } break; } case MotionEvent.ACTION_CANCEL: { if (mVelocityTracker == null) { break; } if (mDownView != null && mSwiping) { // cancel ViewCompat.animate(mDownView).translationX(0).alpha(mAlpha).setDuration(mAnimationTime) .setListener(null); } mVelocityTracker.recycle(); mVelocityTracker = null; mDownX = 0; mDownY = 0; mDownView = null; mDownPosition = ListView.INVALID_POSITION; mSwiping = false; break; } case MotionEvent.ACTION_UP: { if (mVelocityTracker == null) { break; } mFinalDelta = motionEvent.getRawX() - mDownX; mVelocityTracker.addMovement(motionEvent); mVelocityTracker.computeCurrentVelocity(1000); float velocityX = mVelocityTracker.getXVelocity(); float absVelocityX = Math.abs(velocityX); float absVelocityY = Math.abs(mVelocityTracker.getYVelocity()); boolean dismiss = false; boolean dismissRight = false; if (Math.abs(mFinalDelta) > mViewWidth / 2 && mSwiping) { dismiss = true; dismissRight = mFinalDelta > 0; } else if (mMinFlingVelocity <= absVelocityX && absVelocityX <= mMaxFlingVelocity && absVelocityY < absVelocityX && mSwiping) { // dismiss only if flinging in the same direction as dragging dismiss = (velocityX < 0) == (mFinalDelta < 0); dismissRight = mVelocityTracker.getXVelocity() > 0; } if (dismiss && mDownPosition != mAnimatingPosition && mDownPosition != ListView.INVALID_POSITION) { // dismiss final View downView = mDownView; // mDownView gets null'd before animation ends final int downPosition = mDownPosition; ++mDismissAnimationRefCount; mAnimatingPosition = mDownPosition; ViewCompat.animate(mDownView).translationX(dismissRight ? mViewWidth : -mViewWidth).alpha(0) .setDuration(mAnimationTime).setListener(new ViewPropertyAnimatorListenerAdapter() { @Override public void onAnimationEnd(View view) { performDismiss(downView, downPosition); } }); } else { // cancel ViewCompat.animate(mDownView).translationX(0).alpha(mAlpha).setDuration(mAnimationTime) .setListener(null); } mVelocityTracker.recycle(); mVelocityTracker = null; mDownX = 0; mDownY = 0; mDownView = null; mDownPosition = ListView.INVALID_POSITION; mSwiping = false; break; } case MotionEvent.ACTION_MOVE: { if (mVelocityTracker == null || mPaused) { break; } mVelocityTracker.addMovement(motionEvent); float deltaX = motionEvent.getRawX() - mDownX; float deltaY = motionEvent.getRawY() - mDownY; if (!mSwiping && Math.abs(deltaX) > mSlop && Math.abs(deltaY) < Math.abs(deltaX) / 2) { mSwiping = true; mSwipingSlop = (deltaX > 0 ? mSlop : -mSlop); } if (mSwiping) { ViewCompat.setTranslationX(mDownView, deltaX - mSwipingSlop); ViewCompat.setAlpha(mDownView, Math.max(0f, Math.min(mAlpha, mAlpha * (1f - Math.abs(deltaX) / mViewWidth)))); return true; } break; } } return false; }
From source file:com.anysoftkeyboard.keyboards.views.AnyKeyboardView.java
@Override public boolean onTouchEvent(@NonNull MotionEvent me) { if (getKeyboard() == null)//I mean, if there isn't any keyboard I'm handling, what's the point? return false; if (areTouchesDisabled(me)) { return super.onTouchEvent(me); }/* w w w . jav a 2s . c o m*/ final int action = MotionEventCompat.getActionMasked(me); // Gesture detector must be enabled only when mini-keyboard is not // on the screen. if (!mMiniKeyboardPopup.isShowing() && mGestureDetector != null && mGestureDetector.onTouchEvent(me)) { Logger.d(TAG, "Gesture detected!"); mKeyPressTimingHandler.cancelAllMessages(); dismissAllKeyPreviews(); return true; } if (action == MotionEvent.ACTION_DOWN) { mFirstTouchPoint.x = (int) me.getX(); mFirstTouchPoint.y = (int) me.getY(); mIsFirstDownEventInsideSpaceBar = mSpaceBarKey != null && mSpaceBarKey.isInside(mFirstTouchPoint.x, mFirstTouchPoint.y); } // If the motion event is above the keyboard and it's a MOVE event // coming even before the first MOVE event into the extension area if (!mIsFirstDownEventInsideSpaceBar && me.getY() < mExtensionKeyboardYActivationPoint && !mMiniKeyboardPopup.isShowing() && !mExtensionVisible && action == MotionEvent.ACTION_MOVE) { if (mExtensionKeyboardAreaEntranceTime <= 0) mExtensionKeyboardAreaEntranceTime = SystemClock.uptimeMillis(); if (SystemClock.uptimeMillis() - mExtensionKeyboardAreaEntranceTime > DELAY_BEFORE_POPPING_UP_EXTENSION_KBD) { KeyboardExtension extKbd = ((ExternalAnyKeyboard) getKeyboard()).getExtensionLayout(); if (extKbd == null || extKbd.getKeyboardResId() == AddOn.INVALID_RES_ID) { Logger.i(TAG, "No extension keyboard"); return super.onTouchEvent(me); } else { // telling the main keyboard that the last touch was // canceled MotionEvent cancel = MotionEvent.obtain(me.getDownTime(), me.getEventTime(), MotionEvent.ACTION_CANCEL, me.getX(), me.getY(), 0); super.onTouchEvent(cancel); cancel.recycle(); mExtensionVisible = true; dismissAllKeyPreviews(); if (mExtensionKey == null) { mExtensionKey = new AnyKey(new Row(getKeyboard()), getThemedKeyboardDimens()); mExtensionKey.edgeFlags = 0; mExtensionKey.height = 1; mExtensionKey.width = 1; mExtensionKey.popupResId = extKbd.getKeyboardResId(); mExtensionKey.externalResourcePopupLayout = mExtensionKey.popupResId != 0; mExtensionKey.x = getWidth() / 2; mExtensionKey.y = mExtensionKeyboardPopupOffset; } // so the popup will be right above your finger. mExtensionKey.x = (int) me.getX(); onLongPress(extKbd, mExtensionKey, AnyApplication.getConfig().isStickyExtensionKeyboard(), getPointerTracker(me)); // it is an extension.. getMiniKeyboard().setPreviewEnabled(true); return true; } } else { return super.onTouchEvent(me); } } else if (mExtensionVisible && me.getY() > mExtensionKeyboardYDismissPoint) { // closing the popup dismissPopupKeyboard(); return true; } else { return super.onTouchEvent(me); } }
From source file:com.anjuke.library.uicomponent.photo.EndlessCircleIndicator.java
public boolean onTouchEvent(android.view.MotionEvent ev) { if (super.onTouchEvent(ev)) { return true; }/*from w w w . j av a 2s .co m*/ if ((mViewPager == null) || (mCount == 0)) { return false; } final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mLastMotionX = ev.getX(); break; case MotionEvent.ACTION_MOVE: { final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, activePointerIndex); final float deltaX = x - mLastMotionX; if (!mIsDragging) { if (Math.abs(deltaX) > mTouchSlop) { mIsDragging = true; } } if (mIsDragging) { mLastMotionX = x; if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) { mViewPager.fakeDragBy(deltaX); } } break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: if (!mIsDragging) { final int width = getWidth(); final float halfWidth = width / 2f; final float sixthWidth = width / 6f; if ((mCurrentPage > 0) && (ev.getX() < halfWidth - sixthWidth)) { if (action != MotionEvent.ACTION_CANCEL) { mViewPager.setCurrentItem(mCurrentPage - 1); } return true; } else if ((mCurrentPage < mCount - 1) && (ev.getX() > halfWidth + sixthWidth)) { if (action != MotionEvent.ACTION_CANCEL) { mViewPager.setCurrentItem(mCurrentPage + 1); } return true; } } mIsDragging = false; mActivePointerId = INVALID_POINTER; if (mViewPager.isFakeDragging()) mViewPager.endFakeDrag(); break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mLastMotionX = MotionEventCompat.getX(ev, index); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: final int pointerIndex = MotionEventCompat.getActionIndex(ev); final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex); if (pointerId == mActivePointerId) { final int newPointerIndex = pointerIndex == 0 ? 1 : 0; mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex); } mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); break; } return true; }
From source file:cn.bingoogolapple.refreshlayout.BGAStickyNavLayout.java
@Override public boolean onTouchEvent(MotionEvent event) { initVelocityTrackerIfNotExists();//from ww w . j ava 2 s.c o m mVelocityTracker.addMovement(event); float currentTouchY = event.getY(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: if (!mOverScroller.isFinished()) { mOverScroller.abortAnimation(); } mLastTouchY = currentTouchY; break; case MotionEvent.ACTION_MOVE: float differentY = currentTouchY - mLastTouchY; mLastTouchY = currentTouchY; if (Math.abs(differentY) > 0) { scrollBy(0, (int) -differentY); } break; case MotionEvent.ACTION_CANCEL: recycleVelocityTracker(); if (!mOverScroller.isFinished()) { mOverScroller.abortAnimation(); } break; case MotionEvent.ACTION_UP: mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); int initialVelocity = (int) mVelocityTracker.getYVelocity(); if ((Math.abs(initialVelocity) > mMinimumVelocity)) { fling(-initialVelocity); } recycleVelocityTracker(); break; } return true; }
From source file:com.aako.zjp2p.widget.superrecycler.swipe.SwipeDismissRecyclerViewTouchListener.java
@SuppressLint("AndroidLintClickableViewAccessibility") @Override/*from w ww . ja v a 2 s .com*/ public boolean onTouch(View view, MotionEvent motionEvent) { if (mViewWidth < 2) { mViewWidth = mRecyclerView.getWidth(); } switch (MotionEventCompat.getActionMasked(motionEvent)) { case MotionEvent.ACTION_DOWN: { if (mPaused) { return false; } // Find the child view that was touched (perform a hit test) Rect rect = new Rect(); int childCount = mRecyclerView.getChildCount(); int[] listViewCoords = new int[2]; mRecyclerView.getLocationOnScreen(listViewCoords); int x = (int) motionEvent.getRawX() - listViewCoords[0]; int y = (int) motionEvent.getRawY() - listViewCoords[1]; View child; for (int i = 0; i < childCount; i++) { child = mRecyclerView.getChildAt(i); child.getHitRect(rect); if (rect.contains(x, y)) { mDownView = child; break; } } if (mDownView != null) { mDownX = motionEvent.getRawX(); mDownY = motionEvent.getRawY(); mDownPosition = mRecyclerView.getChildPosition(mDownView); if (mCallbacks.canDismiss(mDownPosition)) { mVelocityTracker = VelocityTracker.obtain(); mVelocityTracker.addMovement(motionEvent); } else { mDownView = null; } } return false; } case MotionEvent.ACTION_CANCEL: { if (mVelocityTracker == null) { break; } if (mDownView != null && mSwiping) { // cancel animate(mDownView).translationX(0).alpha(1).setDuration(mAnimationTime).setListener(null); } mVelocityTracker.recycle(); mVelocityTracker = null; mDownX = 0; mDownY = 0; mDownView = null; mDownPosition = INVALID_POSITION; mSwiping = false; break; } case MotionEvent.ACTION_UP: { if (mVelocityTracker == null) { break; } float deltaX = motionEvent.getRawX() - mDownX; mVelocityTracker.addMovement(motionEvent); mVelocityTracker.computeCurrentVelocity(1000); float velocityX = mVelocityTracker.getXVelocity(); float absVelocityX = Math.abs(velocityX); float absVelocityY = Math.abs(mVelocityTracker.getYVelocity()); boolean dismiss = false; boolean dismissRight = false; if (Math.abs(deltaX) > mViewWidth / 2 && mSwiping) { dismiss = true; dismissRight = deltaX > 0; } else if (mMinFlingVelocity <= absVelocityX && absVelocityX <= mMaxFlingVelocity && absVelocityY < absVelocityX && mSwiping) { // dismiss only if flinging in the same direction as dragging dismiss = (velocityX < 0) == (deltaX < 0); dismissRight = mVelocityTracker.getXVelocity() > 0; } if (dismiss && mDownPosition != INVALID_POSITION) { // dismiss final View downView = mDownView; // mDownView gets null'd before animation ends final int downPosition = mDownPosition; ++mDismissAnimationRefCount; animate(mDownView).translationX(dismissRight ? mViewWidth : -mViewWidth).alpha(0) .setDuration(mAnimationTime).setListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { super.onAnimationEnd(animation); performDismiss(downView, downPosition); } }); } else { // cancel animate(mDownView).translationX(0).alpha(1).setDuration(mAnimationTime).setListener(null); } mVelocityTracker.recycle(); mVelocityTracker = null; mDownX = 0; mDownY = 0; mDownView = null; mDownPosition = INVALID_POSITION; mSwiping = false; break; } case MotionEvent.ACTION_MOVE: { if (mVelocityTracker == null || mPaused) { break; } mVelocityTracker.addMovement(motionEvent); float deltaX = motionEvent.getRawX() - mDownX; float deltaY = motionEvent.getRawY() - mDownY; if (Math.abs(deltaX) > mSlop && Math.abs(deltaY) < Math.abs(deltaX) / 2) { mSwiping = true; mSwipingSlop = (deltaX > 0 ? mSlop : -mSlop); mRecyclerView.requestDisallowInterceptTouchEvent(true); // Cancel ListView's touch (un-highlighting the item) MotionEvent cancelEvent = MotionEvent.obtain(motionEvent); cancelEvent.setAction(MotionEvent.ACTION_CANCEL | (MotionEventCompat .getActionIndex(motionEvent) << MotionEventCompat.ACTION_POINTER_INDEX_SHIFT)); mRecyclerView.onTouchEvent(cancelEvent); cancelEvent.recycle(); } if (mSwiping) { setTranslationX(mDownView, deltaX - mSwipingSlop); setAlpha(mDownView, Math.max(0f, Math.min(1f, 1f - 2f * Math.abs(deltaX) / mViewWidth))); return true; } break; } } return false; }
From source file:cn.meiqu.baseproject.view.superrecyclerview.swipe.SwipeDismissRecyclerViewTouchListener.java
@Override public boolean onTouch(View view, MotionEvent motionEvent) { if (mViewWidth < 2) { mViewWidth = mRecyclerView.getWidth(); }//from w w w . j a v a 2s. c o m switch (MotionEventCompat.getActionMasked(motionEvent)) { case MotionEvent.ACTION_DOWN: { if (mPaused) { return false; } // Find the child view that was touched (perform a hit test) Rect rect = new Rect(); int childCount = mRecyclerView.getChildCount(); int[] listViewCoords = new int[2]; mRecyclerView.getLocationOnScreen(listViewCoords); int x = (int) motionEvent.getRawX() - listViewCoords[0]; int y = (int) motionEvent.getRawY() - listViewCoords[1]; View child; for (int i = 0; i < childCount; i++) { child = mRecyclerView.getChildAt(i); child.getHitRect(rect); if (rect.contains(x, y)) { mDownView = child; break; } } if (mDownView != null) { mDownX = motionEvent.getRawX(); mDownY = motionEvent.getRawY(); mDownPosition = mRecyclerView.getChildPosition(mDownView); if (mCallbacks.canDismiss(mDownPosition)) { mVelocityTracker = VelocityTracker.obtain(); mVelocityTracker.addMovement(motionEvent); } else { mDownView = null; } } return false; } case MotionEvent.ACTION_CANCEL: { if (mVelocityTracker == null) { break; } if (mDownView != null && mSwiping) { // cancel animate(mDownView).translationX(0).alpha(1).setDuration(mAnimationTime).setListener(null); } mVelocityTracker.recycle(); mVelocityTracker = null; mDownX = 0; mDownY = 0; mDownView = null; mDownPosition = INVALID_POSITION; mSwiping = false; break; } case MotionEvent.ACTION_UP: { if (mVelocityTracker == null) { break; } float deltaX = motionEvent.getRawX() - mDownX; mVelocityTracker.addMovement(motionEvent); mVelocityTracker.computeCurrentVelocity(1000); float velocityX = mVelocityTracker.getXVelocity(); float absVelocityX = Math.abs(velocityX); float absVelocityY = Math.abs(mVelocityTracker.getYVelocity()); boolean dismiss = false; boolean dismissRight = false; if (Math.abs(deltaX) > mViewWidth / 2 && mSwiping) { dismiss = true; dismissRight = deltaX > 0; } else if (mMinFlingVelocity <= absVelocityX && absVelocityX <= mMaxFlingVelocity && absVelocityY < absVelocityX && mSwiping) { // dismiss only if flinging in the same direction as dragging dismiss = (velocityX < 0) == (deltaX < 0); dismissRight = mVelocityTracker.getXVelocity() > 0; } if (dismiss && mDownPosition != INVALID_POSITION) { // dismiss final View downView = mDownView; // mDownView gets null'd before animation ends final int downPosition = mDownPosition; ++mDismissAnimationRefCount; animate(mDownView).translationX(dismissRight ? mViewWidth : -mViewWidth).alpha(0) .setDuration(mAnimationTime).setListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { super.onAnimationEnd(animation); performDismiss(downView, downPosition); } }); } else { // cancel animate(mDownView).translationX(0).alpha(1).setDuration(mAnimationTime).setListener(null); } mVelocityTracker.recycle(); mVelocityTracker = null; mDownX = 0; mDownY = 0; mDownView = null; mDownPosition = INVALID_POSITION; mSwiping = false; break; } case MotionEvent.ACTION_MOVE: { if (mVelocityTracker == null || mPaused) { break; } mVelocityTracker.addMovement(motionEvent); float deltaX = motionEvent.getRawX() - mDownX; float deltaY = motionEvent.getRawY() - mDownY; if (Math.abs(deltaX) > mSlop && Math.abs(deltaY) < Math.abs(deltaX) / 2) { mSwiping = true; mSwipingSlop = (deltaX > 0 ? mSlop : -mSlop); mRecyclerView.requestDisallowInterceptTouchEvent(true); // Cancel ListView's touch (un-highlighting the item) MotionEvent cancelEvent = MotionEvent.obtain(motionEvent); cancelEvent.setAction(MotionEvent.ACTION_CANCEL | (MotionEventCompat .getActionIndex(motionEvent) << MotionEventCompat.ACTION_POINTER_INDEX_SHIFT)); mRecyclerView.onTouchEvent(cancelEvent); cancelEvent.recycle(); } if (mSwiping) { setTranslationX(mDownView, deltaX - mSwipingSlop); setAlpha(mDownView, Math.max(0f, Math.min(1f, 1f - 2f * Math.abs(deltaX) / mViewWidth))); return true; } break; } } return false; }