List of usage examples for android.support.v4.view MotionEventCompat findPointerIndex
public static int findPointerIndex(MotionEvent event, int pointerId)
From source file:com.views.QQ6.widget.ViewDragHelper.java
/** * Process a touch event received by the parent view. This method will * dispatch callback events as needed before returning. The parent view's * onTouchEvent implementation should call this. * * @param ev// w w w.j av a 2s . co m * The touch event received by the parent view */ public void processTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); final int actionIndex = MotionEventCompat.getActionIndex(ev); if (action == MotionEvent.ACTION_DOWN) { // Reset things for a new event stream, just in case we didn't get // the whole previous stream. cancel(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action) { case MotionEvent.ACTION_DOWN: { final float x = ev.getX(); final float y = ev.getY(); final int pointerId = MotionEventCompat.getPointerId(ev, 0); final View toCapture = findTopChildUnder((int) x, (int) y); saveInitialMotion(x, y, pointerId); // Since the parent is already directly processing this touch event, // there is no reason to delay for a slop before dragging. // Start immediately if possible. tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } break; } case MotionEventCompat.ACTION_POINTER_DOWN: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); final float x = MotionEventCompat.getX(ev, actionIndex); final float y = MotionEventCompat.getY(ev, actionIndex); saveInitialMotion(x, y, pointerId); // A ViewDragHelper can only manipulate one view at a time. if (mDragState == STATE_IDLE) { // If we're idle we can do anything! Treat it like a normal down // event. final View toCapture = findTopChildUnder((int) x, (int) y); tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } } else if (isCapturedViewUnder((int) x, (int) y)) { // We're still tracking a captured view. If the same view is // under this // point, we'll swap to controlling it with this pointer // instead. // (This will still work if we're "catching" a settling view.) tryCaptureViewForDrag(mCapturedView, pointerId); } break; } case MotionEvent.ACTION_MOVE: { if (mDragState == STATE_DRAGGING) { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, index); final float y = MotionEventCompat.getY(ev, index); final int idx = (int) (x - mLastMotionX[mActivePointerId]); final int idy = (int) (y - mLastMotionY[mActivePointerId]); dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy); saveLastMotion(ev); } else { // Check to see if any pointer is now over a draggable view. final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int pointerId = MotionEventCompat.getPointerId(ev, i); final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); final float dx = x - mInitialMotionX[pointerId]; final float dy = y - mInitialMotionY[pointerId]; reportNewEdgeDrags(dx, dy, pointerId); if (mDragState == STATE_DRAGGING) { // Callback might have started an edge drag. break; } final View toCapture = findTopChildUnder((int) x, (int) y); if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) { break; } } saveLastMotion(ev); } break; } case MotionEventCompat.ACTION_POINTER_UP: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) { // Try to find another pointer that's still holding on to the // captured view. int newActivePointer = INVALID_POINTER; final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int id = MotionEventCompat.getPointerId(ev, i); if (id == mActivePointerId) { // This one's going away, skip. continue; } final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); if (findTopChildUnder((int) x, (int) y) == mCapturedView && tryCaptureViewForDrag(mCapturedView, id)) { newActivePointer = mActivePointerId; break; } } if (newActivePointer == INVALID_POINTER) { // We didn't find another pointer still touching the view, // release it. releaseViewForPointerUp(); } } clearMotionHistory(pointerId); break; } case MotionEvent.ACTION_UP: { if (mDragState == STATE_DRAGGING) { releaseViewForPointerUp(); } cancel(); break; } case MotionEvent.ACTION_CANCEL: { if (mDragState == STATE_DRAGGING) { dispatchViewReleased(0, 0); } cancel(); break; } default: break; } }
From source file:com.pt.treasuretrash.widget.TwoWayView.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!isEnabled()) { // A disabled view that is clickable still consumes the touch // events, it just doesn't respond to them. return isClickable() || isLongClickable(); }// ww w . j a v a 2 s . c o m if (!mIsAttached) { return false; } boolean needsInvalidate = false; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: { try { if (mDataChanged) { break; } mVelocityTracker.clear(); mScroller.abortAnimation(); final float x = ev.getX(); final float y = ev.getY(); mLastTouchPos = (mIsVertical ? y : x); int motionPosition = pointToPosition((int) x, (int) y); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderPos = 0; if (mDataChanged) { break; } if (mTouchMode == TOUCH_MODE_FLINGING) { mTouchMode = TOUCH_MODE_DRAGGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); motionPosition = findMotionRowOrColumn((int) mLastTouchPos); return true; } else if (mMotionPosition >= 0 && mAdapter.isEnabled(mMotionPosition)) { mTouchMode = TOUCH_MODE_DOWN; triggerCheckForTap(); } mMotionPosition = motionPosition; } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } break; } case MotionEvent.ACTION_MOVE: { try { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(LOGTAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did TwoWayView receive an inconsistent " + "event stream?"); return false; } final float pos; if (mIsVertical) { pos = MotionEventCompat.getY(ev, index); } else { pos = MotionEventCompat.getX(ev, index); } if (mDataChanged) { // Re-sync everything if data has been changed // since the scroll operation can query the adapter. layoutChildren(); } final float diff = pos - mLastTouchPos + mTouchRemainderPos; final int delta = (int) diff; mTouchRemainderPos = diff - delta; switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: // Check if we have moved far enough that it looks more like a // scroll than a tap maybeStartScrolling(delta); break; case TOUCH_MODE_DRAGGING: case TOUCH_MODE_OVERSCROLL: mLastTouchPos = pos; maybeScroll(delta); break; } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } break; } case MotionEvent.ACTION_CANCEL: cancelCheckForTap(); mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } if (mStartEdge != null && mEndEdge != null) { needsInvalidate = mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; case MotionEvent.ACTION_UP: { switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: { final int motionPosition = mMotionPosition; final View child = getChildAt(motionPosition - mFirstPosition); final float x = ev.getX(); final float y = ev.getY(); boolean inList = false; if (mIsVertical) { inList = x > getPaddingLeft() && x < getWidth() - getPaddingRight(); } else { inList = y > getPaddingTop() && y < getHeight() - getPaddingBottom(); } if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { mPerformClick = new PerformClick(); } final PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); mResurrectToPosition = motionPosition; if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { if (mTouchMode == TOUCH_MODE_DOWN) { cancelCheckForTap(); } else { cancelCheckForLongPress(); } mLayoutMode = LAYOUT_NORMAL; if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; setPressed(true); positionSelector(mMotionPosition, child); child.setPressed(true); if (mSelector != null) { Drawable d = mSelector.getCurrent(); if (d != null && d instanceof TransitionDrawable) { ((TransitionDrawable) d).resetTransition(); } } if (mTouchModeReset != null) { removeCallbacks(mTouchModeReset); } mTouchModeReset = new Runnable() { @Override public void run() { mTouchMode = TOUCH_MODE_REST; setPressed(false); child.setPressed(false); if (!mDataChanged) { performClick.run(); } mTouchModeReset = null; } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); break; } case TOUCH_MODE_DRAGGING: if (contentFits()) { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final float velocity; if (mIsVertical) { velocity = VelocityTrackerCompat.getYVelocity(mVelocityTracker, mActivePointerId); } else { velocity = VelocityTrackerCompat.getXVelocity(mVelocityTracker, mActivePointerId); } if (Math.abs(velocity) >= mFlingVelocity) { mTouchMode = TOUCH_MODE_FLINGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); mScroller.fling(0, 0, (int) (mIsVertical ? 0 : velocity), (int) (mIsVertical ? velocity : 0), (mIsVertical ? 0 : Integer.MIN_VALUE), (mIsVertical ? 0 : Integer.MAX_VALUE), (mIsVertical ? Integer.MIN_VALUE : 0), (mIsVertical ? Integer.MAX_VALUE : 0)); mLastTouchPos = 0; needsInvalidate = true; } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } break; case TOUCH_MODE_OVERSCROLL: mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } cancelCheckForTap(); cancelCheckForLongPress(); setPressed(false); if (mStartEdge != null && mEndEdge != null) { needsInvalidate |= mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; } } if (needsInvalidate) { ViewCompat.postInvalidateOnAnimation(this); } return true; }
From source file:com.ruyigu.freeart.ui.widget.HorizontalListView.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!isEnabled()) { // A disabled view that is clickable still consumes the touch // events, it just doesn't respond to them. return isClickable() || isLongClickable(); }//from ww w.j a v a 2 s.co m if (!mIsAttached) { return false; } boolean needsInvalidate = false; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: { if (mDataChanged) { break; } mVelocityTracker.clear(); mScroller.abortAnimation(); final float x = ev.getX(); final float y = ev.getY(); mLastTouchPos = (mIsVertical ? y : x); int motionPosition = pointToPosition((int) x, (int) y); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderPos = 0; if (mDataChanged) { break; } if (mTouchMode == TOUCH_MODE_FLINGING) { mTouchMode = TOUCH_MODE_DRAGGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); motionPosition = findMotionRowOrColumn((int) mLastTouchPos); return true; } else if (mMotionPosition >= 0 && mAdapter.isEnabled(mMotionPosition)) { mTouchMode = TOUCH_MODE_DOWN; triggerCheckForTap(); } mMotionPosition = motionPosition; break; } case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(LOGTAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did TwoWayView receive an inconsistent " + "event stream?"); return false; } final float pos; if (mIsVertical) { pos = MotionEventCompat.getY(ev, index); } else { pos = MotionEventCompat.getX(ev, index); } if (mDataChanged) { // Re-sync everything if data has been changed // since the scroll operation can query the adapter. layoutChildren(); } final float diff = pos - mLastTouchPos + mTouchRemainderPos; final int delta = (int) diff; mTouchRemainderPos = diff - delta; switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: // Check if we have moved far enough that it looks more // like a // scroll than a tap maybeStartScrolling(delta); break; case TOUCH_MODE_DRAGGING: case TOUCH_MODE_OVERSCROLL: mLastTouchPos = pos; maybeScroll(delta); break; } break; } case MotionEvent.ACTION_CANCEL: cancelCheckForTap(); mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } if (mStartEdge != null && mEndEdge != null) { needsInvalidate = mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; case MotionEvent.ACTION_UP: { switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: { final int motionPosition = mMotionPosition; final View child = getChildAt(motionPosition - mFirstPosition); final float x = ev.getX(); final float y = ev.getY(); boolean inList = false; if (mIsVertical) { inList = x > getPaddingLeft() && x < getWidth() - getPaddingRight(); } else { inList = y > getPaddingTop() && y < getHeight() - getPaddingBottom(); } if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { mPerformClick = new PerformClick(); } final PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); mResurrectToPosition = motionPosition; if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { if (mTouchMode == TOUCH_MODE_DOWN) { cancelCheckForTap(); } else { cancelCheckForLongPress(); } mLayoutMode = LAYOUT_NORMAL; if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; setPressed(true); positionSelector(mMotionPosition, child); child.setPressed(true); if (mSelector != null) { Drawable d = mSelector.getCurrent(); if (d != null && d instanceof TransitionDrawable) { ((TransitionDrawable) d).resetTransition(); } } if (mTouchModeReset != null) { removeCallbacks(mTouchModeReset); } mTouchModeReset = new Runnable() { @Override public void run() { mTouchMode = TOUCH_MODE_REST; setPressed(false); child.setPressed(false); if (!mDataChanged) { performClick.run(); } mTouchModeReset = null; } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); break; } case TOUCH_MODE_DRAGGING: if (contentFits()) { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final float velocity; if (mIsVertical) { velocity = VelocityTrackerCompat.getYVelocity(mVelocityTracker, mActivePointerId); } else { velocity = VelocityTrackerCompat.getXVelocity(mVelocityTracker, mActivePointerId); } if (Math.abs(velocity) >= mFlingVelocity) { mTouchMode = TOUCH_MODE_FLINGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); mScroller.fling(0, 0, (int) (mIsVertical ? 0 : velocity), (int) (mIsVertical ? velocity : 0), (mIsVertical ? 0 : Integer.MIN_VALUE), (mIsVertical ? 0 : Integer.MAX_VALUE), (mIsVertical ? Integer.MIN_VALUE : 0), (mIsVertical ? Integer.MAX_VALUE : 0)); mLastTouchPos = 0; needsInvalidate = true; } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } break; case TOUCH_MODE_OVERSCROLL: mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } cancelCheckForTap(); cancelCheckForLongPress(); setPressed(false); if (mStartEdge != null && mEndEdge != null) { needsInvalidate |= mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; } } if (needsInvalidate) { ViewCompat.postInvalidateOnAnimation(this); } return true; }
From source file:com.artifex.mupdflib.TwoWayView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { if (!mIsAttached || mAdapter == null) { return false; }// www. j ava 2 s. c om final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); mScroller.abortAnimation(); if (mPositionScroller != null) { mPositionScroller.stop(); } final float x = ev.getX(); final float y = ev.getY(); mLastTouchPos = (mIsVertical ? y : x); final int motionPosition = findMotionRowOrColumn((int) mLastTouchPos); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderPos = 0; if (mTouchMode == TOUCH_MODE_FLINGING) { return true; } else if (motionPosition >= 0) { mMotionPosition = motionPosition; mTouchMode = TOUCH_MODE_DOWN; } break; case MotionEvent.ACTION_MOVE: { if (mTouchMode != TOUCH_MODE_DOWN) { break; } initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(LOGTAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did TwoWayView receive an inconsistent " + "event stream?"); return false; } final float pos; if (mIsVertical) { pos = MotionEventCompat.getY(ev, index); } else { pos = MotionEventCompat.getX(ev, index); } final float diff = pos - mLastTouchPos + mTouchRemainderPos; final int delta = (int) diff; mTouchRemainderPos = diff - delta; if (maybeStartScrolling(delta)) { return true; } break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: mActivePointerId = INVALID_POINTER; mTouchMode = TOUCH_MODE_REST; recycleVelocityTracker(); reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } return false; }
From source file:com.baidu.zhuanche.view.LazyViewPager.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*/* w w w . j av a2 s.c o m*/ * This method JUST determines whether we want to intercept the motion. * If we return true, onMotionEvent will be called and we do the actual * scrolling there. */ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; // Always take care of the touch gesture being complete. if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) { // Release the drag. if (DEBUG) Log.v(TAG, "Intercept done!"); mIsBeingDragged = false; mIsUnableToDrag = false; mActivePointerId = INVALID_POINTER; if (mVelocityTracker != null) { mVelocityTracker.recycle(); mVelocityTracker = null; } return false; } // Nothing more to do here if we have decided whether or not we // are dragging. if (action != MotionEvent.ACTION_DOWN) { if (mIsBeingDragged) { if (DEBUG) Log.v(TAG, "Intercept returning true!"); return true; } if (mIsUnableToDrag) { if (DEBUG) Log.v(TAG, "Intercept returning false!"); return false; } } switch (action) { case MotionEvent.ACTION_MOVE: { /* * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check * whether the user has moved far enough from his original down touch. */ /* * Locally do absolute value. mLastMotionY is set to the y value * of the down event. */ final int activePointerId = mActivePointerId; if (activePointerId == INVALID_POINTER) { // If we don't have a valid id, the touch down wasn't on content. break; } final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float dx = x - mLastMotionX; final float xDiff = Math.abs(dx); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastMotionY); if (DEBUG) Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff); if (canScroll(this, false, (int) dx, (int) x, (int) y)) { // Nested view has scrollable area under this point. Let it be handled there. mInitialMotionX = mLastMotionX = x; mLastMotionY = y; return false; } if (xDiff > mTouchSlop && xDiff > yDiff) { if (DEBUG) Log.v(TAG, "Starting drag!"); mIsBeingDragged = true; setScrollState(SCROLL_STATE_DRAGGING); mLastMotionX = x; setScrollingCacheEnabled(true); } else { if (yDiff > mTouchSlop) { // The finger has moved enough in the vertical // direction to be counted as a drag... abort // any attempt to drag horizontally, to work correctly // with children that have scrolling containers. if (DEBUG) Log.v(TAG, "Starting unable to drag!"); mIsUnableToDrag = true; } } break; } case MotionEvent.ACTION_DOWN: { /* * Remember location of down touch. * ACTION_DOWN always refers to pointer index 0. */ mLastMotionX = mInitialMotionX = ev.getX(); mLastMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); if (mScrollState == SCROLL_STATE_SETTLING) { // Let the user 'catch' the pager as it animates. mIsBeingDragged = true; mIsUnableToDrag = false; setScrollState(SCROLL_STATE_DRAGGING); } else { completeScroll(); mIsBeingDragged = false; mIsUnableToDrag = false; } if (DEBUG) Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged + "mIsUnableToDrag=" + mIsUnableToDrag); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } if (!mIsBeingDragged) { // Track the velocity as long as we aren't dragging. // Once we start a real drag we will track in onTouchEvent. if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.chenglong.muscle.ui.LazyViewPager.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*/*from w ww. jav a 2s. c om*/ * This method JUST determines whether we want to intercept the motion. * If we return true, onMotionEvent will be called and we do the actual * scrolling there. */ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; // Always take care of the touch gesture being complete. if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) { // Release the drag. if (DEBUG) Log.v(TAG, "Intercept done!"); mIsBeingDragged = false; mIsUnableToDrag = false; mActivePointerId = INVALID_POINTER; if (mVelocityTracker != null) { mVelocityTracker.recycle(); mVelocityTracker = null; } return false; } // Nothing more to do here if we have decided whether or not we // are dragging. if (action != MotionEvent.ACTION_DOWN) { if (mIsBeingDragged) { if (DEBUG) Log.v(TAG, "Intercept returning true!"); return true; } if (mIsUnableToDrag) { if (DEBUG) Log.v(TAG, "Intercept returning false!"); return false; } } switch (action) { case MotionEvent.ACTION_MOVE: { /* * mIsBeingDragged == false, otherwise the shortcut would have * caught it. Check whether the user has moved far enough from * his original down touch. */ /* * Locally do absolute value. mLastMotionY is set to the y value * of the down event. */ final int activePointerId = mActivePointerId; if (activePointerId == INVALID_POINTER) { // If we don't have a valid id, the touch down wasn't on // content. break; } final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float dx = x - mLastMotionX; final float xDiff = Math.abs(dx); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastMotionY); if (DEBUG) Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff); if (canScroll(this, false, (int) dx, (int) x, (int) y)) { // Nested view has scrollable area under this point. Let it // be handled there. mInitialMotionX = mLastMotionX = x; mLastMotionY = y; return false; } if (xDiff > mTouchSlop && xDiff > yDiff) { if (DEBUG) Log.v(TAG, "Starting drag!"); mIsBeingDragged = true; setScrollState(SCROLL_STATE_DRAGGING); mLastMotionX = x; setScrollingCacheEnabled(true); } else { if (yDiff > mTouchSlop) { // The finger has moved enough in the vertical // direction to be counted as a drag... abort // any attempt to drag horizontally, to work correctly // with children that have scrolling containers. if (DEBUG) Log.v(TAG, "Starting unable to drag!"); mIsUnableToDrag = true; } } break; } case MotionEvent.ACTION_DOWN: { /* * Remember location of down touch. ACTION_DOWN always refers to * pointer index 0. */ mLastMotionX = mInitialMotionX = ev.getX(); mLastMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); if (mScrollState == SCROLL_STATE_SETTLING) { // Let the user 'catch' the pager as it animates. mIsBeingDragged = true; mIsUnableToDrag = false; setScrollState(SCROLL_STATE_DRAGGING); } else { completeScroll(); mIsBeingDragged = false; mIsUnableToDrag = false; } if (DEBUG) Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged + "mIsUnableToDrag=" + mIsUnableToDrag); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } if (!mIsBeingDragged) { // Track the velocity as long as we aren't dragging. // Once we start a real drag we will track in onTouchEvent. if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.tylz.jiaoyanglogistics.view.LazyViewPager.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*/*from w w w . j a v a 2s .c o m*/ * This method JUST determines whether we want to intercept the motion. * If we return true, onMotionEvent will be called and we do the actual * scrolling there. */ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; // Always take care of the touch gesture being complete. if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) { // Release the drag. if (DEBUG) { Log.v(TAG, "Intercept done!"); } mIsBeingDragged = false; mIsUnableToDrag = false; mActivePointerId = INVALID_POINTER; if (mVelocityTracker != null) { mVelocityTracker.recycle(); mVelocityTracker = null; } return false; } // Nothing more to do here if we have decided whether or not we // are dragging. if (action != MotionEvent.ACTION_DOWN) { if (mIsBeingDragged) { if (DEBUG) { Log.v(TAG, "Intercept returning true!"); } return true; } if (mIsUnableToDrag) { if (DEBUG) { Log.v(TAG, "Intercept returning false!"); } return false; } } switch (action) { case MotionEvent.ACTION_MOVE: { /* * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check * whether the user has moved far enough from his original down touch. */ /* * Locally do absolute value. mLastMotionY is set to the y value * of the down event. */ final int activePointerId = mActivePointerId; if (activePointerId == INVALID_POINTER) { // If we don't have a valid id, the touch down wasn't on content. break; } final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float dx = x - mLastMotionX; final float xDiff = Math.abs(dx); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastMotionY); if (DEBUG) { Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff); } if (canScroll(this, false, (int) dx, (int) x, (int) y)) { // Nested view has scrollable area under this point. Let it be handled there. mInitialMotionX = mLastMotionX = x; mLastMotionY = y; return false; } if (xDiff > mTouchSlop && xDiff > yDiff) { if (DEBUG) { Log.v(TAG, "Starting drag!"); } mIsBeingDragged = true; setScrollState(SCROLL_STATE_DRAGGING); mLastMotionX = x; setScrollingCacheEnabled(true); } else { if (yDiff > mTouchSlop) { // The finger has moved enough in the vertical // direction to be counted as a drag... abort // any attempt to drag horizontally, to work correctly // with children that have scrolling containers. if (DEBUG) { Log.v(TAG, "Starting unable to drag!"); } mIsUnableToDrag = true; } } break; } case MotionEvent.ACTION_DOWN: { /* * Remember location of down touch. * ACTION_DOWN always refers to pointer index 0. */ mLastMotionX = mInitialMotionX = ev.getX(); mLastMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); if (mScrollState == SCROLL_STATE_SETTLING) { // Let the user 'catch' the pager as it animates. mIsBeingDragged = true; mIsUnableToDrag = false; setScrollState(SCROLL_STATE_DRAGGING); } else { completeScroll(); mIsBeingDragged = false; mIsUnableToDrag = false; } if (DEBUG) { Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged + "mIsUnableToDrag=" + mIsUnableToDrag); } break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } if (!mIsBeingDragged) { // Track the velocity as long as we aren't dragging. // Once we start a real drag we will track in onTouchEvent. if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.ferg.awfulapp.widget.AwfulViewPager.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*/*from w w w . j ava2 s . co m*/ * This method JUST determines whether we want to intercept the motion. * If we return true, onMotionEvent will be called and we do the actual * scrolling there. */ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; // Always take care of the touch gesture being complete. if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) { // Release the drag. // if (DEBUG) Log.v(TAG, "Intercept done!"); mIsBeingDragged = false; mIsUnableToDrag = false; mActivePointerId = INVALID_POINTER; if (mVelocityTracker != null) { mVelocityTracker.recycle(); mVelocityTracker = null; } return false; } // Nothing more to do here if we have decided whether or not we // are dragging. if (action != MotionEvent.ACTION_DOWN) { if (mIsBeingDragged) { // if (DEBUG) Log.v(TAG, "Intercept returning true!"); return true; } if (mIsUnableToDrag) { // if (DEBUG) Log.v(TAG, "Intercept returning false!"); return false; } } switch (action) { case MotionEvent.ACTION_MOVE: { /* * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check * whether the user has moved far enough from his original down touch. */ /* * Locally do absolute value. mLastMotionY is set to the y value * of the down event. */ final int activePointerId = mActivePointerId; if (activePointerId == INVALID_POINTER) { // If we don't have a valid id, the touch down wasn't on content. break; } final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float dx = x - mLastMotionX; final float xDiff = Math.abs(dx); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastMotionY); //Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff); //mCurFrag.canScrollX((int) dx) if ((mCurFrag != null && mCurFrag.canScrollX((int) dx)) || canScroll(this, false, (int) dx, (int) x, (int) y)) { //Log.v(TAG, "canScroll!"); // Nested view has scrollable area under this point. Let it be handled there. mInitialMotionX = mLastMotionX = x; mLastMotionY = y; return false; } if (xDiff > mTouchSlop * 2 && xDiff > yDiff * 1.25) { //Log.v(TAG, "Starting drag!"); mIsBeingDragged = true; setScrollState(SCROLL_STATE_DRAGGING); mLastMotionX = x; setScrollingCacheEnabled(true); } else { if (yDiff > mTouchSlop * 2) { // The finger has moved enough in the vertical // direction to be counted as a drag... abort // any attempt to drag horizontally, to work correctly // with children that have scrolling containers. // if (DEBUG) Log.v(TAG, "Starting unable to drag!"); mIsUnableToDrag = true; } } break; } case MotionEvent.ACTION_DOWN: { /* * Remember location of down touch. * ACTION_DOWN always refers to pointer index 0. */ mLastMotionX = mInitialMotionX = ev.getX(); mLastMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); /*if (mScrollState == SCROLL_STATE_SETTLING) { // Let the user 'catch' the pager as it animates. mIsBeingDragged = true; mIsUnableToDrag = false; setScrollState(SCROLL_STATE_DRAGGING); } else {*/ completeScroll(); mIsBeingDragged = false; mIsUnableToDrag = false; //} // if (DEBUG) Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY // + " mIsBeingDragged=" + mIsBeingDragged // + "mIsUnableToDrag=" + mIsUnableToDrag); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } if (!mIsBeingDragged) { // Track the velocity as long as we aren't dragging. // Once we start a real drag we will track in onTouchEvent. if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:beichen.douban.ui.view.LazyViewPager.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*//w w w . ja v a2s . c o m * This method JUST determines whether we want to intercept the motion. * If we return true, onMotionEvent will be called and we do the actual * scrolling there. */ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; // Always take care of the touch gesture being complete. if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) { // Release the drag. if (DEBUG) Log.v(TAG, "Intercept done!"); mIsBeingDragged = false; mIsUnableToDrag = false; mActivePointerId = INVALID_POINTER; if (mVelocityTracker != null) { mVelocityTracker.recycle(); mVelocityTracker = null; } return false; } // Nothing more to do here if we have decided whether or not we // are dragging. if (action != MotionEvent.ACTION_DOWN) { if (mIsBeingDragged) { if (DEBUG) Log.v(TAG, "Intercept returning true!"); return true; } if (mIsUnableToDrag) { if (DEBUG) Log.v(TAG, "Intercept returning false!"); return false; } } switch (action) { case MotionEvent.ACTION_MOVE: { /* * mIsBeingDragged == false, otherwise the shortcut would have * caught it. Check whether the user has moved far enough from * his original down touch. */ /* * Locally do absolute value. mLastMotionY is set to the y value * of the down event. */ final int activePointerId = mActivePointerId; if (activePointerId == INVALID_POINTER) { // If we don't have a valid id, the touch down wasn't on // content. break; } final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float dx = x - mLastMotionX; final float xDiff = Math.abs(dx); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastMotionY); if (DEBUG) Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff); if (canScroll(this, false, (int) dx, (int) x, (int) y)) { // Nested view has scrollable area under this point. Let it // be handled there. mInitialMotionX = mLastMotionX = x; mLastMotionY = y; return false; } if (xDiff > mTouchSlop && xDiff > yDiff) { if (DEBUG) Log.v(TAG, "Starting drag!"); mIsBeingDragged = true; setScrollState(SCROLL_STATE_DRAGGING); mLastMotionX = x; setScrollingCacheEnabled(true); } else { if (yDiff > mTouchSlop) { // The finger has moved enough in the vertical // direction to be counted as a drag... abort // any attempt to drag horizontally, to work correctly // with children that have scrolling containers. if (DEBUG) Log.v(TAG, "Starting unable to drag!"); mIsUnableToDrag = true; } } break; } case MotionEvent.ACTION_DOWN: { /* * Remember location of down touch. ACTION_DOWN always refers to * pointer index 0. */ mLastMotionX = mInitialMotionX = ev.getX(); mLastMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); if (mScrollState == SCROLL_STATE_SETTLING) { // Let the user 'catch' the pager as it animates. mIsBeingDragged = true; mIsUnableToDrag = false; setScrollState(SCROLL_STATE_DRAGGING); } else { completeScroll(); mIsBeingDragged = false; mIsUnableToDrag = false; } if (DEBUG) Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged + "mIsUnableToDrag=" + mIsUnableToDrag); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } if (!mIsBeingDragged) { // Track the velocity as long as we aren't dragging. // Once we start a real drag we will track in onTouchEvent. if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.wz.xm.views.LazyViewPager.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*/* w w w.jav a 2 s.c om*/ * This method JUST determines whether we want to intercept the motion. * If we return true, onMotionEvent will be called and we do the actual * scrolling there. */ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; // Always take care of the touch gesture being complete. if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) { // Release the drag. if (DEBUG) Log.v(TAG, "Intercept done!"); mIsBeingDragged = false; mIsUnableToDrag = false; mActivePointerId = INVALID_POINTER; if (mVelocityTracker != null) { mVelocityTracker.recycle(); mVelocityTracker = null; } return false; } // Nothing more to do here if we have decided whether or not we // are dragging. if (action != MotionEvent.ACTION_DOWN) { if (mIsBeingDragged) { if (DEBUG) Log.v(TAG, "Intercept returning true!"); return true; } if (mIsUnableToDrag) { if (DEBUG) Log.v(TAG, "Intercept returning false!"); return false; } } switch (action) { case MotionEvent.ACTION_MOVE: { /* * mIsBeingDragged == false, otherwise the shortcut would have * caught it. Check whether the user has moved far enough from his * original down touch. */ /* * Locally do absolute value. mLastMotionY is set to the y value of * the down event. */ final int activePointerId = mActivePointerId; if (activePointerId == INVALID_POINTER) { // If we don't have a valid id, the touch down wasn't on // content. break; } final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float dx = x - mLastMotionX; final float xDiff = Math.abs(dx); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastMotionY); if (DEBUG) Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff); if (canScroll(this, false, (int) dx, (int) x, (int) y)) { // Nested view has scrollable area under this point. Let it // be handled there. mInitialMotionX = mLastMotionX = x; mLastMotionY = y; return false; } if (xDiff > mTouchSlop && xDiff > yDiff) { if (DEBUG) Log.v(TAG, "Starting drag!"); mIsBeingDragged = true; setScrollState(SCROLL_STATE_DRAGGING); mLastMotionX = x; setScrollingCacheEnabled(true); } else { if (yDiff > mTouchSlop) { // The finger has moved enough in the vertical // direction to be counted as a drag... abort // any attempt to drag horizontally, to work correctly // with children that have scrolling containers. if (DEBUG) Log.v(TAG, "Starting unable to drag!"); mIsUnableToDrag = true; } } break; } case MotionEvent.ACTION_DOWN: { /* * Remember location of down touch. ACTION_DOWN always refers to * pointer index 0. */ mLastMotionX = mInitialMotionX = ev.getX(); mLastMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); if (mScrollState == SCROLL_STATE_SETTLING) { // Let the user 'catch' the pager as it animates. mIsBeingDragged = true; mIsUnableToDrag = false; setScrollState(SCROLL_STATE_DRAGGING); } else { completeScroll(); mIsBeingDragged = false; mIsUnableToDrag = false; } if (DEBUG) Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged + "mIsUnableToDrag=" + mIsUnableToDrag); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } if (!mIsBeingDragged) { // Track the velocity as long as we aren't dragging. // Once we start a real drag we will track in onTouchEvent. if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }