Java Code Examples for android.view.VelocityTracker
The following are top voted examples for showing how to use
android.view.VelocityTracker. These examples are extracted from open source projects.
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Example 1
| Project: GitHub File: Utils.java Source Code and License | 6 votes |
|
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;
}
}
}
Example 2
| Project: GitHub File: DirectionalViewpager.java Source Code and License | 6 votes |
|
/**
* 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, 0, 0);
mVelocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
Example 3
| Project: GitHub File: VerticalViewPager.java Source Code and License | 6 votes |
|
/**
* 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, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
mVelocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
Example 4
| Project: GitHub File: VerticalViewPager.java Source Code and License | 6 votes |
|
/**
* 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, true, initialVelocity);
endDrag();
mFakeDragging = false;
}
Example 5
| Project: GitHub File: BaseViewPager.java Source Code and License | 6 votes |
|
/**
* 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);
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, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
mVelocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
Example 6
| Project: GitHub File: BaseViewPager.java Source Code and License | 6 votes |
|
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, pageOffset, initialVelocity,
totalDelta);
setCurrentItemInternal(nextPage, true, true, initialVelocity);
}
endDrag();
mFakeDragging = false;
}
Example 7
| Project: GitHub File: BaseViewPager.java Source Code and License | 6 votes |
|
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, pageOffset, initialVelocity,
totalDelta);
setCurrentItemInternal(nextPage, true, true, initialVelocity);
}
endDrag();
mFakeDragging = false;
}
Example 8
| Project: OpenWithX File: ResolverDrawerLayout.java Source Code and License | 6 votes |
|
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);
}
Example 9
| Project: KUtils-master File: BGAViewPager.java Source Code and License | 6 votes |
|
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;
}
Example 10
| Project: StackCardsView File: SwipeTouchHelper.java Source Code and License | 6 votes |
|
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());
}
Example 11
| Project: PageScrollView File: PageScrollView.java Source Code and License | 6 votes |
|
@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;
}
Example 12
| Project: PureMusic File: LyricView.java Source Code and License | 6 votes |
|
@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;
}
Example 13
| Project: KUtils File: BGAViewPager.java Source Code and License | 6 votes |
|
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;
}
Example 14
| Project: Renrentou File: XCCycleViewPager.java Source Code and License | 6 votes |
|
/**
* 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, 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);
mInitialMotionX = mLastMotionX = 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, 0, 0);
mVelocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
Example 15
| Project: Renrentou File: XCCycleViewPager.java Source Code and License | 6 votes |
|
/**
* 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, pageOffset, initialVelocity,
totalDelta);
setCurrentItemInternal(nextPage, true, true, initialVelocity);
endDrag();
mFakeDragging = false;
}
Example 16
| Project: VerticalWebView File: VerticalParentViewPager.java Source Code and License | 6 votes |
|
/**
* 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, 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);
mInitialMotionX = mLastMotionX = 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, 0, 0);
mVelocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
Example 17
| Project: VerticalWebView File: VerticalParentViewPager.java Source Code and License | 6 votes |
|
/**
* 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, pageOffset, initialVelocity,
totalDelta);
setCurrentItemInternal(nextPage, true, true, initialVelocity);
endDrag();
mFakeDragging = false;
}
Example 18
| Project: android-project-gallery File: ViewPagerCompat.java Source Code and License | 6 votes |
|
/**
* 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, 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);
mInitialMotionX = mLastMotionX = 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, 0, 0);
mVelocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
Example 19
| Project: TextReader File: DirectionalViewpager.java Source Code and License | 6 votes |
|
/**
* 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, 0, 0);
mVelocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
Example 20
| Project: YViewPagerDemo File: YViewPager.java Source Code and License | 6 votes |
|
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, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
mVelocityTracker.addMovement(ev);
ev.recycle();
mFakeDragBeginTime = time;
return true;
}
Example 21
| Project: boohee_v5.6 File: ViewPager.java Source Code and License | 6 votes |
|
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, initialVelocity, (int) (this.mLastMotionX - this.mInitialMotionX)), true, true, initialVelocity);
}
endDrag();
this.mFakeDragging = false;
return;
}
throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
}
Example 22
| Project: android-project-gallery File: ViewPagerCompat.java Source Code and License | 6 votes |
|
/**
* 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, pageOffset, initialVelocity,
totalDelta);
setCurrentItemInternal(nextPage, true, true, initialVelocity);
endDrag();
mFakeDragging = false;
}
Example 23
| Project: letv File: ViewPager.java Source Code and License | 6 votes |
|
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, time, 0, 0.0f, 0.0f, 0);
this.mVelocityTracker.addMovement(ev);
ev.recycle();
this.mFakeDragBeginTime = time;
return true;
}
Example 24
| Project: boohee_v5.6 File: BottomSheetBehavior.java Source Code and License | 6 votes |
|
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;
}
Example 25
| Project: OSchina_resources_android File: BannerView.java Source Code and License | 6 votes |
|
public BannerView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, 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();
}
Example 26
| Project: WeatherStream File: Confetto.java Source Code and License | 6 votes |
|
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;
}
}
Example 27
| Project: RetroMusicPlayer File: LyricView.java Source Code and License | 6 votes |
|
@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;
}
Example 28
| Project: ChromeLikeTabSwitcher File: AbstractTouchEventHandler.java Source Code and License | 5 votes |
|
/**
* 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);
}
Example 29
| Project: Linphone4Android File: SlidingDrawer.java Source Code and License | 5 votes |
|
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);
}
}
Example 30
| Project: LaunchEnr File: SwipeHelper.java Source Code and License | 5 votes |
|
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);
}
Example 31
| Project: AppFirCloud File: SwipeMenuLayout.java Source Code and License | 5 votes |
|
/**
* @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);
}
Example 32
| Project: boohee_v5.6 File: BooheeRulerView.java Source Code and License | 5 votes |
|
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;
}
Example 33
| Project: android_ui File: VerticalPullHelper.java Source Code and License | 5 votes |
|
/**
*/
@Override
float computeOverScroll(int scrollX, int scrollY, boolean clampedX, boolean clampedY, VelocityTracker tracker, int units) {
if (scrollY != 0 && clampedY) {
return tracker.getYVelocity() / (units * 0.05f);
}
return 0;
}
Example 34
| Project: OSchina_resources_android File: BannerView.java Source Code and License | 5 votes |
|
@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);
}
Example 35
| Project: EasyReader File: HorizontalScrollView.java Source Code and License | 5 votes |
|
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();
}
Example 36
| Project: FabulousFilter File: ViewPagerBottomSheetBehavior.java Source Code and License | 5 votes |
|
@Override
public boolean onTouchEvent(CoordinatorLayout parent, V child, 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;
}
Example 37
| Project: RX_Demo File: SwipeMenuLayout.java Source Code and License | 5 votes |
|
/**
* @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);
}
Example 38
| Project: MyLife File: ElasticDrawer.java Source Code and License | 5 votes |
|
protected float getXVelocity(VelocityTracker velocityTracker) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) {
return velocityTracker.getXVelocity(mActivePointerId);
}
return velocityTracker.getXVelocity();
}
Example 39
| Project: letv File: NestedScrollView.java Source Code and License | 5 votes |
|
private void initOrResetVelocityTracker() {
if (this.mVelocityTracker == null) {
this.mVelocityTracker = VelocityTracker.obtain();
} else {
this.mVelocityTracker.clear();
}
}
Example 40
| Project: Hotspot-master-devp File: CoverFlowView.java Source Code and License | 5 votes |
|
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);
}
Example 41
| Project: CustomAndroidOneSheeld File: MultiDirectionSlidingDrawer.java Source Code and License | 5 votes |
|
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);
}
}
Example 42
| Project: boohee_v5.6 File: NestedScrollView.java Source Code and License | 5 votes |
|
private void initOrResetVelocityTracker() {
if (this.mVelocityTracker == null) {
this.mVelocityTracker = VelocityTracker.obtain();
} else {
this.mVelocityTracker.clear();
}
}
Example 43
| Project: NeoTerm File: AbstractDragHandler.java Source Code and License | 5 votes |
|
/**
* 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);
}
Example 44
| Project: Instincts-2k17 File: WheelView.java Source Code and License | 5 votes |
|
private void startWheelDrag(MotionEvent event, float x, float y) {
mIsDraggingWheel = true;
mDraggedAngle = 0f;
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
} else {
mVelocityTracker.clear();
}
mVelocityTracker.addMovement(event);
mAngularVelocity = 0f;
mLastTouchAngle = mWheelBounds.angleToDegrees(x, y);
}
Example 45
| Project: YCCardView File: CardViewLayout.java Source Code and License | 5 votes |
|
@Override
public boolean onTouchEvent(MotionEvent event) {
mVelocityTracker.addMovement(event);
int action = event.getActionMasked();
switch (action) {
case MotionEvent.ACTION_DOWN:
// 此处说明底层没有子View愿意消费Touch事件
break;
case MotionEvent.ACTION_MOVE:
int currentX = (int) event.getX();
int dx = (int) (currentX - lastX);
requireScrollChange(dx);
lastX = currentX;
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
final VelocityTracker velocityTracker = mVelocityTracker;
velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
int velocity = (int) velocityTracker.getXVelocity();
recycleVelocityTracker();
onRelease(event.getX(), velocity);
break;
}
return true;
}
Example 46
| Project: NeoTerm File: AbstractDragHandler.java Source Code and License | 5 votes |
|
/**
* Handles a touch event.
*
* @param event
* The event, which should be handled, as an instance of the class {@link MotionEvent}.
* The event may be not null
* @return True, if the event has been handled, false otherwise
*/
public final boolean handleTouchEvent(@NonNull final MotionEvent event) {
ensureNotNull(event, "The motion event may not be null");
if (tabSwitcher.isSwitcherShown() && !tabSwitcher.isEmpty()) {
notifyOnCancelFling();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
handleDown(event);
return true;
case MotionEvent.ACTION_MOVE:
if (!tabSwitcher.isAnimationRunning() && event.getPointerId(0) == pointerId) {
if (velocityTracker == null) {
velocityTracker = VelocityTracker.obtain();
}
velocityTracker.addMovement(event);
handleDrag(arithmetics.getPosition(Axis.DRAGGING_AXIS, event),
arithmetics.getPosition(Axis.ORTHOGONAL_AXIS, event));
} else {
handleRelease(null, dragThreshold);
handleDown(event);
}
return true;
case MotionEvent.ACTION_UP:
if (!tabSwitcher.isAnimationRunning() && event.getPointerId(0) == pointerId) {
handleRelease(event, dragThreshold);
}
return true;
default:
break;
}
}
return false;
}
Example 47
| Project: SwipeFinishLayout File: SwipeFinishLayout.java Source Code and License | 5 votes |
|
/**
* 开始追踪速度
* @param event
*/
private void startVelocityTracker(MotionEvent event) {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
}
Example 48
| Project: GitHub File: FreeFlowContainer.java Source Code and License | 4 votes |
|
@Override
public boolean onTouchEvent(MotionEvent event) {
super.onTouchEvent(event);
if (mLayout == null) {
return false;
}
// flag to check if laid out items are wide or tall enough
// to require scrolling
boolean canScroll = false;
if (mLayout.horizontalScrollEnabled()
&& this.mLayout.getContentWidth() > getWidth()) {
canScroll = true;
}
if (mLayout.verticalScrollEnabled()
&& mLayout.getContentHeight() > getHeight()) {
canScroll = true;
}
switch (event.getAction()) {
case (MotionEvent.ACTION_DOWN):
touchDown(event);
break;
case (MotionEvent.ACTION_MOVE):
if (canScroll) {
touchMove(event);
}
break;
case (MotionEvent.ACTION_UP):
touchUp(event);
break;
case (MotionEvent.ACTION_CANCEL):
touchCancel(event);
break;
}
if (!canScroll) {
return true;
}
if (mVelocityTracker == null && canScroll) {
mVelocityTracker = VelocityTracker.obtain();
}
if (mVelocityTracker != null) {
mVelocityTracker.addMovement(event);
}
return true;
}
Example 49
| Project: GitHub File: VersionedGestureDetector.java Source Code and License | 4 votes |
|
@Override
public boolean onTouchEvent(MotionEvent ev) {
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN: {
mVelocityTracker = VelocityTracker.obtain();
mVelocityTracker.addMovement(ev);
mLastTouchX = getActiveX(ev);
mLastTouchY = getActiveY(ev);
mIsDragging = false;
break;
}
case MotionEvent.ACTION_MOVE: {
final float x = getActiveX(ev);
final float y = getActiveY(ev);
final float dx = x - mLastTouchX, dy = y - mLastTouchY;
if (!mIsDragging) {
// Use Pythagoras to see if drag length is larger than
// touch slop
mIsDragging = (float)Math.sqrt((dx * dx) + (dy * dy)) >= mTouchSlop;
}
if (mIsDragging) {
mListener.onDrag(dx, dy);
mLastTouchX = x;
mLastTouchY = y;
if (null != mVelocityTracker) {
mVelocityTracker.addMovement(ev);
}
}
break;
}
case MotionEvent.ACTION_CANCEL: {
// Recycle Velocity Tracker
if (null != mVelocityTracker) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
break;
}
case MotionEvent.ACTION_UP: {
if (mIsDragging) {
if (null != mVelocityTracker) {
mLastTouchX = getActiveX(ev);
mLastTouchY = getActiveY(ev);
// Compute velocity within the last 1000ms
mVelocityTracker.addMovement(ev);
mVelocityTracker.computeCurrentVelocity(1000);
final float vX = mVelocityTracker.getXVelocity(), vY = mVelocityTracker.getYVelocity();
// If the velocity is greater than minVelocity, call
// listener
if (Math.max(Math.abs(vX), Math.abs(vY)) >= mMinimumVelocity) {
mListener.onFling(mLastTouchX, mLastTouchY, -vX, -vY);
}
}
}
// Recycle Velocity Tracker
if (null != mVelocityTracker) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
break;
}
}
return true;
}
Example 50
| Project: GitHub File: OverScrollProcessor.java Source Code and License | 4 votes |
|
private void obtainTracker(MotionEvent event) {
if (null == moveTracker) {
moveTracker = VelocityTracker.obtain();
}
moveTracker.addMovement(event);
}
Example 51
| Project: GitHub File: BGAStickyNavLayout.java Source Code and License | 4 votes |
|
private void initVelocityTrackerIfNotExists() {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
}
Example 52
| Project: BooheeRuler File: HorizontalRuler.java Source Code and License | 4 votes |
|
@Override
public boolean onTouchEvent(MotionEvent event) {
float currentX = event.getX();
//开始速度检测
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
if (!mOverScroller.isFinished()) {
mOverScroller.abortAnimation();
}
mLastX = currentX;
break;
case MotionEvent.ACTION_MOVE:
float moveX = mLastX - currentX;
mLastX = currentX;
scrollBy((int) (moveX), 0);
break;
case MotionEvent.ACTION_UP:
//处理松手后的Fling
mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
int velocityX = (int) mVelocityTracker.getXVelocity();
if (Math.abs(velocityX) > mMinimumVelocity) {
fling(-velocityX);
} else {
scrollBackToCurrentScale();
}
//VelocityTracker回收
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
releaseEdgeEffects();
break;
case MotionEvent.ACTION_CANCEL:
if (!mOverScroller.isFinished()) {
mOverScroller.abortAnimation();
}
//回滚到整点刻度
scrollBackToCurrentScale();
//VelocityTracker回收
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
releaseEdgeEffects();
break;
}
return true;
}
Example 53
| Project: GitHub File: SlideLayout.java Source Code and License | 4 votes |
|
private void createVelocityTracker(MotionEvent event) {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
}
Example 54
| Project: pius1 File: SlideBottomPanel.java Source Code and License | 4 votes |
|
private void initVelocityTracker(MotionEvent event) {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
}
Example 55
| Project: zabbkit-android File: DraggedPanelLayout.java Source Code and License | 4 votes |
|
private void obtainVelocityTracker() {
if (velocityTracker == null) {
velocityTracker = VelocityTracker.obtain();
}
}
Example 56
| Project: AndroidPDF File: DocumentView.java Source Code and License | 4 votes |
|
@Override
public boolean onTouchEvent(MotionEvent ev) {
super.onTouchEvent(ev);
if (multiTouchZoom != null) {
if (multiTouchZoom.onTouchEvent(ev)) {
return true;
}
if (multiTouchZoom.isResetLastPointAfterZoom()) {
setLastPosition(ev);
multiTouchZoom.setResetLastPointAfterZoom(false);
}
}
if (velocityTracker == null) {
velocityTracker = VelocityTracker.obtain();
}
velocityTracker.addMovement(ev);
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
stopScroller();
setLastPosition(ev);
if (ev.getEventTime() - lastDownEventTime < DOUBLE_TAP_TIME) {
zoomModel.toggleZoomControls();
} else {
lastDownEventTime = ev.getEventTime();
}
break;
case MotionEvent.ACTION_MOVE:
scrollBy((int) (lastX - ev.getX()), (int) (lastY - ev.getY()));
setLastPosition(ev);
break;
case MotionEvent.ACTION_UP:
velocityTracker.computeCurrentVelocity(1000);
scroller.fling(getScrollX(), getScrollY(), (int) -velocityTracker.getXVelocity(), (int) -velocityTracker.getYVelocity(), getLeftLimit(), getRightLimit(), getTopLimit(), getBottomLimit());
velocityTracker.recycle();
velocityTracker = null;
break;
}
return true;
}
Example 57
| Project: LaunchEnr File: SwipeHelper.java Source Code and License | 4 votes |
|
private float getPerpendicularVelocity(VelocityTracker vt) {
return mSwipeDirection == X ? vt.getYVelocity() :
vt.getXVelocity();
}
Example 58
| Project: Android-Music-Player File: libraryHome.java Source Code and License | 4 votes |
|
public libraryHome(Context context, int width, int height) {
super(context, width, height);
setEnableCatch();
This = this;
//setBackgroundColor(com.shape.home.backgroundImg.Color0);
//TopStick = new FMView(context,width,Ui.cd.getHt(2));
//TopStick.setBackgroundColor(backgroundImg.Color0);
//addView(TopStick);
/* TopView = new topView(context,Ui.cd.getHt(25),Ui.cd.getHt(50));
TopView.setBackgroundColor(0x00FFFFFF);
TopView.setX((width - TopView.width) / 2);
addView(TopView);*/
BtmView = new btmView(context,width, Ui.cd.getHt(60)){
@Override
int openMenu(float scolled) {
int no = super.openMenu(scolled);
libraryHome.this.openMenu(no);
return no;
}
};
BtmView.setBackgroundColor(backgroundImg.Color0);
BtmView.setY(height - BtmView.height);
addView(BtmView);
//drawCatch();
LibreryPage = new Librery(getContext(),width,height - BtmView.height,0);
SongsPage = new Songs(getContext(),width,height - BtmView.height,1);
AlbumsPage = new Albums(getContext(),width,height - BtmView.height,2);
ArtistPage = new Artist(getContext(),width,height - BtmView.height,3);
GenersPage = new Geners(getContext(),width,height - BtmView.height,4);
FolderPage = new Folder(getContext(),width,height - BtmView.height,5);
Sp = SongsPage;
addView(Sp,indexOfChild(BtmView));
//openMenu(0);
SongSlider = new songSlider(context,width, Ui.cd.getHt(22));
SongSlider.setY(height - BtmView.height - (SongSlider.height / 2f));
SongSlider.setBtns(true);
addView(SongSlider);
Vx = VelocityTracker.obtain();
pages = new pagePrototype[]{LibreryPage,SongsPage,AlbumsPage,ArtistPage,GenersPage,FolderPage};
//addView(top,indexOfChild(Sp)+1);
//addView(LibreryPage);
}
Example 59
| Project: GCSApp File: VersionedGestureDetector.java Source Code and License | 4 votes |
|
@Override
public boolean onTouchEvent(MotionEvent ev) {
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN: {
mVelocityTracker = VelocityTracker.obtain();
mVelocityTracker.addMovement(ev);
mLastTouchX = getActiveX(ev);
mLastTouchY = getActiveY(ev);
mIsDragging = false;
break;
}
case MotionEvent.ACTION_MOVE: {
final float x = getActiveX(ev);
final float y = getActiveY(ev);
final float dx = x - mLastTouchX, dy = y - mLastTouchY;
if (!mIsDragging) {
// Use Pythagoras to see if drag length is larger than
// touch slop
// mIsDragging = FloatMath.sqrt((dx * dx) + (dy * dy)) >= mTouchSlop;
mIsDragging = Math.sqrt((dx * dx) + (dy * dy)) >= mTouchSlop;
}
if (mIsDragging) {
mListener.onDrag(dx, dy);
mLastTouchX = x;
mLastTouchY = y;
if (null != mVelocityTracker) {
mVelocityTracker.addMovement(ev);
}
}
break;
}
case MotionEvent.ACTION_CANCEL: {
// Recycle Velocity Tracker
if (null != mVelocityTracker) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
break;
}
case MotionEvent.ACTION_UP: {
if (mIsDragging) {
if (null != mVelocityTracker) {
mLastTouchX = getActiveX(ev);
mLastTouchY = getActiveY(ev);
// Compute velocity within the last 1000ms
mVelocityTracker.addMovement(ev);
mVelocityTracker.computeCurrentVelocity(1000);
final float vX = mVelocityTracker.getXVelocity(), vY = mVelocityTracker.getYVelocity();
// If the velocity is greater than minVelocity, call
// listener
if (Math.max(Math.abs(vX), Math.abs(vY)) >= mMinimumVelocity) {
mListener.onFling(mLastTouchX, mLastTouchY, -vX, -vY);
}
}
}
// Recycle Velocity Tracker
if (null != mVelocityTracker) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
break;
}
}
return true;
}
Example 60
| Project: baselibrary-master File: NumberPickerView.java Source Code and License | 4 votes |
|
@Override
public boolean onTouchEvent(MotionEvent event) {
if(mItemHeight == 0) return true;
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
currY = event.getY();
switch(event.getAction()){
case MotionEvent.ACTION_DOWN:
mFlagMayPress = true;
mHandlerInNewThread.removeMessages(HANDLER_WHAT_REFRESH);
stopScrolling();
downY = currY;
downYGlobal = mCurrDrawGlobalY;
onScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE);
getParent().requestDisallowInterceptTouchEvent(true);
break;
case MotionEvent.ACTION_MOVE:
float spanY = downY - currY;
if(mFlagMayPress && (-mScaledTouchSlop < spanY && spanY < mScaledTouchSlop)){
}else{
mFlagMayPress = false;
mCurrDrawGlobalY = limitY((int)(downYGlobal + spanY));
calculateFirstItemParameterByGlobalY();
invalidate();
}
onScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL);
break;
case MotionEvent.ACTION_UP:
if(mFlagMayPress){
click(event);
}else {
final VelocityTracker velocityTracker = mVelocityTracker;
velocityTracker.computeCurrentVelocity(1000);
int velocityY = (int) (velocityTracker.getYVelocity() * mFriction);
if (Math.abs(velocityY) > mMiniVelocityFling) {
mScroller.fling(0, mCurrDrawGlobalY, 0, -velocityY,
Integer.MIN_VALUE, Integer.MAX_VALUE, limitY(Integer.MIN_VALUE), limitY(Integer.MAX_VALUE));
invalidate();
onScrollStateChange(OnScrollListener.SCROLL_STATE_FLING);
}
mHandlerInNewThread.sendMessageDelayed(getMsg(HANDLER_WHAT_REFRESH), 0);
releaseVelocityTracker();
}
break;
case MotionEvent.ACTION_CANCEL:
downYGlobal = mCurrDrawGlobalY;
stopScrolling();
mHandlerInNewThread.sendMessageDelayed(getMsg(HANDLER_WHAT_REFRESH), 0);
break;
}
return true ;
}
