项目：GitHub
文件：Utils.java
public static void veLocityTrackerPointerUpCleanUpIfNecessary(MotionEvent ev,VeLocityTracker tracker) {
// Check the dot product of current veLocities.
// If the pointer that left was opposing another veLocity vector,clear.
tracker.computeCurrentVeLocity(1000,mMaximumFlingVeLocity);
final int upIndex = ev.getActionIndex();
final int id1 = ev.getPointerId(upIndex);
final float x1 = tracker.getXVeLocity(id1);
final float y1 = tracker.getYVeLocity(id1);
for (int i = 0,count = ev.getPointerCount(); i < count; i++) {
if (i == upIndex)
continue;
final int id2 = ev.getPointerId(i);
final float x = x1 * tracker.getXVeLocity(id2);
final float y = y1 * tracker.getYVeLocity(id2);
final float dot = x + y;
if (dot < 0) {
tracker.clear();
break;
}
}
}
项目：GitHub
文件：DirectionalViewpager.java
/**
* Start a fake drag of the pager.
*
* @return true if the fake drag began successfully,false if it Could not be started.
*/
public boolean beginFakeDrag() {
if (mIsBeingDragged) {
return false;
}
mFakeDragging = true;
setScrollState(SCROLL_STATE_DRAGGING);
if (isHorizontal()) {
mInitialMotionX = mLastMotionX = 0;
} else {
mInitialMotionY = mLastMotionY = 0;
}
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
} else {
mVeLocityTracker.clear();
}
final long time = SystemClock.uptimeMillis();
final MotionEvent ev = MotionEvent.obtain(time,time,MotionEvent.ACTION_DOWN,0);
mVeLocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
项目：GitHub
文件：VerticalViewPager.java
/**
* Start a fake drag of the pager.
* <p/>
* <p>A fake drag can be useful if you want to synchronize the motion of the ViewPager
* with the touch scrolling of another view,while still letting the ViewPager
* control the snapping motion and fling behavior. (e.g. parallax-scrolling tabs.)
* Call {@link #fakeDragBy(float)} to simulate the actual drag motion. Call
* {@link #endFakeDrag()} to complete the fake drag and fling as necessary.
* <p/>
* <p>During a fake drag the ViewPager will ignore all touch events. If a real drag
* is already in progress,this method will return false.
*
* @return true if the fake drag began successfully,false if it Could not be started.
* @see #fakeDragBy(float)
* @see #endFakeDrag()
*/
public boolean beginFakeDrag() {
if (mIsBeingDragged) {
return false;
}
mFakeDragging = true;
setScrollState(SCROLL_STATE_DRAGGING);
mInitialMotionY = mLastMotionY = 0;
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
} else {
mVeLocityTracker.clear();
}
final long time = SystemClock.uptimeMillis();
final MotionEvent ev = MotionEvent.obtain(time,0);
mVeLocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
项目：GitHub
文件：VerticalViewPager.java
/**
* End a fake drag of the pager.
*
* @see #beginFakeDrag()
* @see #fakeDragBy(float)
*/
public void endFakeDrag() {
if (!mFakeDragging) {
throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
}
final VeLocityTracker veLocityTracker = mVeLocityTracker;
veLocityTracker.computeCurrentVeLocity(1000,mMaximumVeLocity);
int initialVeLocity = (int) VeLocityTrackerCompat.getYVeLocity(
veLocityTracker,mActivePointerId);
mPopulatePending = true;
final int height = getClientHeight();
final int scrollY = getScrollY();
final ItemInfo ii = infoForCurrentScrollPosition();
final int currentPage = ii.position;
final float pageOffset = (((float) scrollY / height) - ii.offset) / ii.heightFactor;
final int totalDelta = (int) (mLastMotionY - mInitialMotionY);
int nextPage = determineTargetPage(currentPage,pageOffset,initialVeLocity,totalDelta);
setCurrentItemInternal(nextPage,true,initialVeLocity);
endDrag();
mFakeDragging = false;
}
项目：GitHub
文件：BaseViewPager.java
/**
* Start a fake drag of the pager.
* <p/>
* <p>A fake drag can be useful if you want to synchronize the motion of the ViewPager
* with the touch scrolling of another view,false if it Could not be started.
* @see #fakeDragBy(float)
* @see #endFakeDrag()
*/
public boolean beginFakeDrag() {
if (mIsBeingDragged) {
return false;
}
mFakeDragging = true;
setScrollState(SCROLL_STATE_DRAGGING);
if (isHorizontalDirection()) {
mInitialMotionX = mLastMotionX = 0;
} else if (isverticalDirection()) {
mInitialMotionY = mLastMotionY = 0;
}
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
} else {
mVeLocityTracker.clear();
}
final long time = SystemClock.uptimeMillis();
final MotionEvent ev = MotionEvent.obtain(time,0);
mVeLocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
项目：GitHub
文件：BaseViewPager.java
private void endFakeDragHorizontally() {
if (mAdapter != null) {
final VeLocityTracker veLocityTracker = mVeLocityTracker;
veLocityTracker.computeCurrentVeLocity(1000,mMaximumVeLocity);
int initialVeLocity = (int) VeLocityTrackerCompat.getXVeLocity(
veLocityTracker,mActivePointerId);
mPopulatePending = true;
final int width = getClientWidth();
final int scrollX = getScrollX();
final ItemInfo ii = infoForCurrentScrollPosition();
final int currentPage = ii.position;
final float pageOffset = (((float) scrollX / width) - ii.offset) / ii.widthFactor;
final int totalDelta = (int) (mLastMotionX - mInitialMotionX);
int nextPage = determineTargetPage(currentPage,totalDelta);
setCurrentItemInternal(nextPage,initialVeLocity);
}
endDrag();
mFakeDragging = false;
}
项目：GitHub
文件：BaseViewPager.java
private void endFakeDragVertically() {
if (mAdapter != null) {
final VeLocityTracker veLocityTracker = mVeLocityTracker;
veLocityTracker.computeCurrentVeLocity(1000,mMaximumVeLocity);
int initialVeLocity = (int) VeLocityTrackerCompat.getYVeLocity(
veLocityTracker,mActivePointerId);
mPopulatePending = true;
final int height = getClientHeight();
final int scrollY = getScrollY();
final ItemInfo ii = infoForCurrentScrollPosition();
final int currentPage = ii.position;
final float pageOffset = (((float) scrollY / height) - ii.offset) / ii.heightFactor;
final int totalDelta = (int) (mLastMotionY - mInitialMotionY);
int nextPage = determineTargetPage(currentPage,initialVeLocity);
}
endDrag();
mFakeDragging = false;
}
项目：OpenWithX
文件：ResolverDrawerLayout.java
public ResolverDrawerLayout(Context context,AttributeSet attrs,int defStyleAttr) {
super(context,attrs,defStyleAttr);
final TypedArray a = context.obtainStyledAttributes(attrs,R.styleable.ResolverDrawerLayout,defStyleAttr,0);
mMaxWidth = a.getDimensionPixelSize(R.styleable.ResolverDrawerLayout_android_maxWidth,-1);
mMaxCollapsedHeight = a.getDimensionPixelSize(
R.styleable.ResolverDrawerLayout_maxCollapsedHeight,0);
mMaxCollapsedHeightSmall = a.getDimensionPixelSize(
R.styleable.ResolverDrawerLayout_maxCollapsedHeightSmall,mMaxCollapsedHeight);
a.recycle();
mScrollIndicatorDrawable = context.getDrawable(R.drawable.scroll_indicator_material);
mScroller = new OverScroller(context,AnimationUtils.loadInterpolator(context,android.R.interpolator.decelerate_quint));
mVeLocityTracker = VeLocityTracker.obtain();
final ViewConfiguration vc = ViewConfiguration.get(context);
mTouchSlop = vc.getScaledTouchSlop();
mMinFlingVeLocity = vc.getScaledMinimumFlingVeLocity();
setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
}
项目：KUtils-master
文件：BGAViewPager.java
private float getXVeLocity() {
float xVeLocity = 0;
Class viewpagerClass = ViewPager.class;
try {
Field veLocityTrackerField = viewpagerClass.getDeclaredField("mVeLocityTracker");
veLocityTrackerField.setAccessible(true);
VeLocityTracker veLocityTracker = (VeLocityTracker) veLocityTrackerField.get(this);
Field activePointerIdField = viewpagerClass.getDeclaredField("mActivePointerId");
activePointerIdField.setAccessible(true);
Field maximumVeLocityField = viewpagerClass.getDeclaredField("mMaximumVeLocity");
maximumVeLocityField.setAccessible(true);
int maximumVeLocity = maximumVeLocityField.getInt(this);
veLocityTracker.computeCurrentVeLocity(1000,maximumVeLocity);
xVeLocity = VeLocityTrackerCompat.getXVeLocity(veLocityTracker,activePointerIdField.getInt(this));
} catch (Exception e) {
}
return xVeLocity;
}
private void onTouchRelease() {
final StackCardsView.LayoutParams lp = (StackCardsView.LayoutParams) mTouchChild.getLayoutParams();
if (lp.fastdismissAllowed) {
final VeLocityTracker veLocityTracker2 = mVeLocityTracker;
veLocityTracker2.computeCurrentVeLocity(1000,mMaxVeLocity);
float xv = veLocityTracker2.getXVeLocity(mActivePointerId);
float yv = veLocityTracker2.getYVeLocity(mActivePointerId);
if (doFastdisappear(xv,yv)) {
resetTouch();
return;
}
}
if (isdistanceAllowdismiss() && isDirectionAllowdismiss()) {
doslowdisappear();
} else {
animatetoInitPos();
}
resetTouch();
mswipeview.onCoverStatusChanged(isCoverIdle());
}
项目：PageScrollView
文件：PageScrollView.java
@Override
public boolean onTouchEvent(MotionEvent event) {
if (mVirtualCount == 0 || !isEnabled()) {
return super.onTouchEvent(event);
}
if (event.getAction() == MotionEvent.ACTION_DOWN && event.getEdgeFlags() != 0) {
return false;
}
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
}
mVeLocityTracker.addMovement(event);
final int action = event.getAction() & MotionEventCompat.ACTION_MASK;
if (action == MotionEvent.ACTION_MOVE) {
handletouchActionMove(event);
} else {
if (action == MotionEvent.ACTION_DOWN) {
handletouchActionDown(event);
}
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
handletouchActionUp(event);
}
}
return true;
}
项目：PureMusic
文件：LyricView.java
@Override
public boolean onTouchEvent(MotionEvent event) {
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
}
mVeLocityTracker.addMovement(event);
switch (event.getAction()) {
case MotionEvent.ACTION_CANCEL:
actionCancel(event);
break;
case MotionEvent.ACTION_DOWN:
actionDown(event);
break;
case MotionEvent.ACTION_MOVE:
actionMove(event);
break;
case MotionEvent.ACTION_UP:
actionUp(event);
break;
default:
break;
}
invalidateView();
return true;
}
项目：KUtils
文件：BGAViewPager.java
private float getXVeLocity() {
float xVeLocity = 0;
Class viewpagerClass = ViewPager.class;
try {
Field veLocityTrackerField = viewpagerClass.getDeclaredField("mVeLocityTracker");
veLocityTrackerField.setAccessible(true);
VeLocityTracker veLocityTracker = (VeLocityTracker) veLocityTrackerField.get(this);
Field activePointerIdField = viewpagerClass.getDeclaredField("mActivePointerId");
activePointerIdField.setAccessible(true);
Field maximumVeLocityField = viewpagerClass.getDeclaredField("mMaximumVeLocity");
maximumVeLocityField.setAccessible(true);
int maximumVeLocity = maximumVeLocityField.getInt(this);
veLocityTracker.computeCurrentVeLocity(1000,activePointerIdField.getInt(this));
} catch (Exception e) {
}
return xVeLocity;
}
项目：Renrentou
文件：XCCycleViewPager.java
/**
* Start a fake drag of the pager.
*
* <p>A fake drag can be useful if you want to synchronize the motion of the ViewPager
* with the touch scrolling of another view,while still letting the ViewPager
* control the snapping motion and fling behavior. (e.g. parallax-scrolling tabs.)
* Call {@link #fakeDragBy(float)} to simulate the actual drag motion. Call
* {@link #endFakeDrag()} to complete the fake drag and fling as necessary.
*
* <p>During a fake drag the ViewPager will ignore all touch events. If a real drag
* is already in progress,false if it Could not be started.
*
* @see #fakeDragBy(float)
* @see #endFakeDrag()
*/
public boolean beginFakeDrag() {
if (mIsBeingDragged) {
return false;
}
mFakeDragging = true;
setScrollState(SCROLL_STATE_DRAGGING);
mInitialMotionX = mLastMotionX = 0;
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
} else {
mVeLocityTracker.clear();
}
final long time = SystemClock.uptimeMillis();
final MotionEvent ev = MotionEvent.obtain(time,0);
mVeLocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
项目：Renrentou
文件：XCCycleViewPager.java
/**
* End a fake drag of the pager.
*
* @see #beginFakeDrag()
* @see #fakeDragBy(float)
*/
public void endFakeDrag() {
if (!mFakeDragging) {
throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
}
final VeLocityTracker veLocityTracker = mVeLocityTracker;
veLocityTracker.computeCurrentVeLocity(1000,mMaximumVeLocity);
int initialVeLocity = (int) VeLocityTrackerCompat.getXVeLocity(
veLocityTracker,mActivePointerId);
mPopulatePending = true;
final int width = getClientWidth();
final int scrollX = getScrollX();
final ItemInfo ii = infoForCurrentScrollPosition();
final int currentPage = ii.position;
final float pageOffset = (((float) scrollX / width) - ii.offset) / ii.widthFactor;
final int totalDelta = (int) (mLastMotionX - mInitialMotionX);
int nextPage = determineTargetPage(currentPage,initialVeLocity);
endDrag();
mFakeDragging = false;
}
项目：VerticalWebView
文件：VerticalParentViewPager.java
/**
* Start a fake drag of the pager.
*
* <p>A fake drag can be useful if you want to synchronize the motion of the ViewPager
* with the touch scrolling of another view,0);
mVeLocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
项目：VerticalWebView
文件：VerticalParentViewPager.java
/**
* End a fake drag of the pager.
*
* @see #beginFakeDrag()
* @see #fakeDragBy(float)
*/
public void endFakeDrag() {
if (!mFakeDragging) {
throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
}
final VeLocityTracker veLocityTracker = mVeLocityTracker;
veLocityTracker.computeCurrentVeLocity(1000,initialVeLocity);
endDrag();
mFakeDragging = false;
}
/**
* Start a fake drag of the pager.
*
* <p>A fake drag can be useful if you want to synchronize the motion of the ViewPager
* with the touch scrolling of another view,0);
mVeLocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
项目：TextReader
文件：DirectionalViewpager.java
/**
* Start a fake drag of the pager.
*
* @return true if the fake drag began successfully,0);
mVeLocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
项目：YViewPagerDemo
文件：YViewPager.java
public boolean beginFakeDrag() {
if (mIsBeingDragged) {
return false;
}
mFakeDragging = true;
setScrollState(SCROLL_STATE_DRAGGING);
mInitialMotionX = mLastMotionX = 0;
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
} else {
mVeLocityTracker.clear();
}
final long time = SystemClock.uptimeMillis();
final MotionEvent ev = MotionEvent.obtain(time,0);
mVeLocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
public void endFakeDrag() {
if (this.mFakeDragging) {
if (this.mAdapter != null) {
VeLocityTracker veLocityTracker = this.mVeLocityTracker;
veLocityTracker.computeCurrentVeLocity(1000,(float) this.mMaximumVeLocity);
int initialVeLocity = (int) VeLocityTrackerCompat.getXVeLocity(veLocityTracker,this.mActivePointerId);
this.mPopulatePending = true;
int width = getClientWidth();
int scrollX = getScrollX();
ItemInfo ii = infoForCurrentScrollPosition();
setCurrentItemInternal(determineTargetPage(ii.position,((((float) scrollX) / ((float) width)) - ii.offset) / ii.widthFactor,(int) (this.mLastMotionX - this.mInitialMotionX)),initialVeLocity);
}
endDrag();
this.mFakeDragging = false;
return;
}
throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
}
/**
* End a fake drag of the pager.
*
* @see #beginFakeDrag()
* @see #fakeDragBy(float)
*/
public void endFakeDrag() {
if (!mFakeDragging) {
throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
}
final VeLocityTracker veLocityTracker = mVeLocityTracker;
veLocityTracker.computeCurrentVeLocity(1000,initialVeLocity);
endDrag();
mFakeDragging = false;
}
项目：letv
文件：ViewPager.java
public boolean beginFakeDrag() {
if (this.mIsBeingDragged) {
return false;
}
this.mFakeDragging = true;
setScrollState(1);
this.mLastMotionX = 0.0f;
this.mInitialMotionX = 0.0f;
if (this.mVeLocityTracker == null) {
this.mVeLocityTracker = VeLocityTracker.obtain();
} else {
this.mVeLocityTracker.clear();
}
long time = SystemClock.uptimeMillis();
MotionEvent ev = MotionEvent.obtain(time,0.0f,0);
this.mVeLocityTracker.addMovement(ev);
ev.recycle();
this.mFakeDragBeginTime = time;
return true;
}
public boolean onTouchEvent(CoordinatorLayout parent,V child,MotionEvent event) {
if (!child.isShown()) {
return false;
}
int action = MotionEventCompat.getActionMasked(event);
if (this.mState == 1 && action == 0) {
return true;
}
this.mViewDragHelper.processtouchEvent(event);
if (action == 0) {
reset();
}
if (this.mVeLocityTracker == null) {
this.mVeLocityTracker = VeLocityTracker.obtain();
}
this.mVeLocityTracker.addMovement(event);
if (action != 2 || Math.abs(((float) this.mInitialY) - event.getY()) <= ((float) this.mViewDragHelper.getTouchSlop())) {
return true;
}
this.mViewDragHelper.captureChildView(child,event.getPointerId(event.getActionIndex()));
return true;
}
项目：OSchina_resources_android
文件：BannerView.java
public BannerView(Context context,defStyleAttr);
setonClickListener(this);
mScroller = new Scroller(context);
mVeLocityTracker = VeLocityTracker.obtain();
final ViewConfiguration configuration = ViewConfiguration.get(context);
final float density = context.getResources().getdisplayMetrics().density;
mMaximumVeLocity = configuration.getScaledMaximumFlingVeLocity();
TypedArray array = context.obtainStyledAttributes(attrs,R.styleable.BannerView);
mHorizontalOffset = array.getDimension(R.styleable.BannerView_horizontal_offset,0);
mVerticalOffset = array.getDimension(R.styleable.BannerView_vertical_offset,0);
duration = array.getInt(R.styleable.BannerView_scroll_duration,500);
array.recycle();
}
项目：WeatherStream
文件：Confetto.java
public boolean onTouchDown(MotionEvent event) {
final float x = event.getX();
final float y= event.getY();
if (doesLocationIntercept(x,y)) {
this.touchOverride = true;
this.overrideX = x;
this.overrideY = y;
this.overrideDeltaX = currentX - x;
this.overrideDeltaY = currentY - y;
veLocityTracker = VeLocityTracker.obtain();
veLocityTracker.addMovement(event);
return true;
} else {
return false;
}
}
项目：RetroMusicPlayer
文件：LyricView.java
@Override
public boolean onTouchEvent(MotionEvent event) {
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
}
mVeLocityTracker.addMovement(event);
switch (event.getAction()) {
case MotionEvent.ACTION_CANCEL:
actionCancel(event);
break;
case MotionEvent.ACTION_DOWN:
actionDown(event);
break;
case MotionEvent.ACTION_MOVE:
actionMove(event);
break;
case MotionEvent.ACTION_UP:
actionUp(event);
break;
default:
break;
}
invalidateView();
return true;
}
项目：ChromeLikeTabSwitcher
文件：AbstractTouchEventHandler.java
/**
* Handles,when a drag gesture has been started.
*
* @param event
* The motion event,which started the drag gesture,as an instance of the class {@link
* MotionEvent}. The motion event may not be null
*/
private void handleDown(@NonNull final MotionEvent event) {
pointerId = event.getPointerId(0);
if (veLocityTracker == null) {
veLocityTracker = VeLocityTracker.obtain();
} else {
veLocityTracker.clear();
}
veLocityTracker.addMovement(event);
onDown(event);
}
项目：Linphone4Android
文件：SlidingDrawer.java
private void prepareTracking(int position) {
mTracking = true;
mVeLocityTracker = VeLocityTracker.obtain();
boolean opening = !mExpanded;
if (opening) {
mAnimatedacceleration = mMaximumacceleration;
mAnimatedVeLocity = mMaximumMajorVeLocity;
if (mInvert)
mAnimationPosition = mTopOffset;
else
mAnimationPosition = mBottomOffset
+ (mVertical ? getHeight() - mHandleHeight : getWidth()
- mHandleWidth);
moveHandle((int) mAnimationPosition);
mAnimating = true;
mHandler.removeMessages(MSG_ANIMATE);
long Now = SystemClock.uptimeMillis();
mAnimationLastTime = Now;
mCurrentAnimationTime = Now + ANIMATION_FRAME_DURATION;
mAnimating = true;
} else {
if (mAnimating) {
mAnimating = false;
mHandler.removeMessages(MSG_ANIMATE);
}
moveHandle(position);
}
}
项目：LaunchEnr
文件：SwipeHelper.java
SwipeHelper(int swipeDirection,Callback callback,Context context) {
mCallback = callback;
mHandler = new Handler();
mSwipeDirection = swipeDirection;
mVeLocityTracker = VeLocityTracker.obtain();
mDensityScale = context.getResources().getdisplayMetrics().density;
mPagingTouchSlop = ViewConfiguration.get(context).getScaledPagingTouchSlop();
mLongPresstimeout = (long) (ViewConfiguration.getLongPresstimeout() * 1.5f); // extra long-press!
mFalsingThreshold = context.getResources().getDimensionPixelSize(
R.dimen.swipe_helper_falsing_threshold);
mFlingAnimationUtils = new FlingAnimationUtils(context,getMaxEscapeAnimDuration() / 1000f);
}
项目：AppFirCloud
文件：SwipeMenuLayout.java
/**
* @param event 向VeLocityTracker添加MotionEvent
* @see VeLocityTracker#obtain()
* @see VeLocityTracker#addMovement(MotionEvent)
*/
private void acquireVeLocityTracker(final MotionEvent event) {
if (null == mVeLocityTracker) {
mVeLocityTracker = VeLocityTracker.obtain();
}
mVeLocityTracker.addMovement(event);
}
public boolean onTouchEvent(MotionEvent event) {
int action = event.getAction();
float xPosition = event.getX();
if (this.veLocityTracker == null) {
this.veLocityTracker = VeLocityTracker.obtain();
}
this.veLocityTracker.addMovement(event);
switch (action) {
case 0:
this.isActionUp = false;
this.scroller.forceFinished(true);
if (this.animator != null) {
this.animator.cancel();
break;
}
break;
case 1:
case 3:
this.isActionUp = true;
this.f = true;
countVeLocityTracker(event);
return false;
case 2:
this.isActionUp = false;
float off = xPosition - this.mLastX;
if ((this.moveX > this.maxRightOffset || off >= 0.0f) && (this.moveX < this
.maxLeftOffset || off <= 0.0f)) {
this.moveX += off;
postInvalidate();
break;
}
}
this.mLastX = xPosition;
return true;
}
项目：android_ui
文件：VerticalPullHelper.java
项目：OSchina_resources_android
文件：BannerView.java
@Override
public boolean onTouchEvent(MotionEvent event) {
isTouch = true;
if (event.getPointerCount() >= 2) return false;
if (mAdapter == null) return super.onTouchEvent(event);
int count = mAdapter.getCount();
if (count <= 1) return super.onTouchEvent(event);
float x = event.getRawX();
mVeLocityTracker.addMovement(event);
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
if (!mScroller.isFinished()) { // 如果上次的调用没有执行完就取消。
return false;
}
mLastX = x;
return true;
case MotionEvent.ACTION_MOVE:
requestdisallowInterceptTouchEvent(true);
int dxMove = (int) (mLastX - x);
mTotalDx += dxMove;
onScrollBy(dxMove);
mLastX = x;
return true;
case MotionEvent.ACTION_UP:
isTouch = false;
if (Math.abs(mTotalDx) <= 10)
performClick();
case MotionEvent.ACTION_CANCEL: {
final VeLocityTracker veLocityTracker = mVeLocityTracker;
veLocityTracker.computeCurrentVeLocity(1000,mMaximumVeLocity);
mXVeLocity = veLocityTracker.getXVeLocity();
isTouch = false;
scrollToItem();
scrollFinish(count);
break;
}
}
return super.onTouchEvent(event);
}
项目：EasyReader
文件：horizontalscrollview.java
private void init() {
WindowManager wm = (WindowManager) getContext()
.getSystemService(Context.WINDOW_SERVICE);
windowWidth = wm.getDefaultdisplay().getWidth();//获取屏幕宽度
halfWindowWidth = windowWidth / 2;
oneThirdWindowWidth = windowWidth / visualCount;
mVeLocityTracker = VeLocityTracker.obtain();
}
@Override
public boolean onTouchEvent(CoordinatorLayout parent,MotionEvent event) {
if (!child.isShown()) {
return false;
}
int action = MotionEventCompat.getActionMasked(event);
if (mState == STATE_DRAGGING && action == MotionEvent.ACTION_DOWN) {
return true;
}
mViewDragHelper.processtouchEvent(event);
// Record the veLocity
if (action == MotionEvent.ACTION_DOWN) {
reset();
}
if (mVeLocityTracker == null) {
mVeLocityTracker = VeLocityTracker.obtain();
}
mVeLocityTracker.addMovement(event);
// The ViewDragHelper tries to capture only the top-most View. We have to explicitly tell it
// to capture the bottom sheet in case it is not captured and the touch slop is passed.
if (action == MotionEvent.ACTION_MOVE && !mIgnoreEvents) {
if (Math.abs(mInitialY - event.getY()) > mViewDragHelper.getTouchSlop()) {
mViewDragHelper.captureChildView(child,event.getPointerId(event.getActionIndex()));
}
}
return !mIgnoreEvents;
}
项目：RX_Demo
文件：SwipeMenuLayout.java
/**
* @param event 向VeLocityTracker添加MotionEvent
* @see VeLocityTracker#obtain()
* @see VeLocityTracker#addMovement(MotionEvent)
*/
private void acquireVeLocityTracker(final MotionEvent event) {
if (null == mVeLocityTracker) {
mVeLocityTracker = VeLocityTracker.obtain();
}
mVeLocityTracker.addMovement(event);
}
项目：MyLife
文件：ElasticDrawer.java
项目：Hotspot-master-devp
文件：CoverFlowView.java
private void touchBegan(MotionEvent event) {
endAnimation();
float x = event.getX();
mTouchStartX = x;
mTouchStartY = event.getY();
mStartTime = AnimationUtils.currentAnimationTimeMillis();
mStartOffset = mOffset;
mTouchMoved = false;
mTouchStartPos = (mTouchStartY / mHeight) * MOVE_POS_MULTIPLE - 5;
mTouchStartPos /= 2;
mVeLocity = VeLocityTracker.obtain();
mVeLocity.addMovement(event);
// float x = event.getX();
// mTouchStartX = x;
// mTouchStartY = event.getY();
// mStartTime = AnimationUtils.currentAnimationTimeMillis();
// mStartOffset = mOffset;
//
// mTouchMoved = false;
//
// mTouchStartPos = (x / mWidth) * MOVE_POS_MULTIPLE - 5;
// mTouchStartPos /= 2;
//
// mVeLocity = VeLocityTracker.obtain();
// mVeLocity.addMovement(event);
}