List of usage examples for android.support.v4.view MotionEventCompat findPointerIndex
public static int findPointerIndex(MotionEvent event, int pointerId)
From source file:com.example.lansosdk.util.SlidingLayer.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { if (!mEnabled) { return false; }/* www . j av a2s .c om*/ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) { mIsDragging = false; mIsUnableToDrag = false; mActivePointerId = INVALID_POINTER; if (mVelocityTracker != null) { mVelocityTracker.recycle(); mVelocityTracker = null; } return false; } if (action != MotionEvent.ACTION_DOWN) { if (mIsDragging) { return true; } else if (mIsUnableToDrag) { return false; } } switch (action) { case MotionEvent.ACTION_MOVE: final int activePointerId = mActivePointerId; if (activePointerId == INVALID_POINTER) { break; } final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); if (pointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, pointerIndex); final float dx = x - mLastX; final float xDiff = Math.abs(dx); final float y = MotionEventCompat.getY(ev, pointerIndex); final float dy = y - mLastY; final float yDiff = Math.abs(y - mLastY); if (xDiff > mTouchSlop && xDiff > yDiff && allowDragingX(dx, mInitialX)) { // mIsDragging = true; mLastX = x; setDrawingCacheEnabled(true); } else if (yDiff > mTouchSlop && yDiff > xDiff && allowDragingY(dy, mInitialY)) { // mIsDragging = true; mLastY = y; setDrawingCacheEnabled(true); } break; case MotionEvent.ACTION_DOWN: mActivePointerId = ev.getAction() & (Build.VERSION.SDK_INT >= 8 ? MotionEvent.ACTION_POINTER_INDEX_MASK : MotionEventCompat.ACTION_POINTER_INDEX_MASK); mLastX = mInitialX = MotionEventCompat.getX(ev, mActivePointerId); mLastY = mInitialY = MotionEventCompat.getY(ev, mActivePointerId); if (allowSlidingFromHereX(ev, mInitialX)) { mIsDragging = false; mIsUnableToDrag = false; // If nobody else got the focus we use it to close the layer return super.onInterceptTouchEvent(ev); } else if (allowSlidingFromHereY(ev, mInitialY)) { mIsDragging = false; mIsUnableToDrag = false; // If nobody else got the focus we use it to close the layer return super.onInterceptTouchEvent(ev); } else { mIsUnableToDrag = true; } break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } if (!mIsDragging) { if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); } return mIsDragging; }
From source file:com.ayuget.redface.ui.activity.ReplyActivity.java
/** * Initializes both the smiley selector/*from w ww . j av a 2 s .co m*/ */ protected void setupSmileySelector() { smileyList.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { final int action = MotionEventCompat.getActionMasked(event); switch (action) { case MotionEvent.ACTION_DOWN: { final int pointerIndex = MotionEventCompat.getActionIndex(event); lastTouchY = MotionEventCompat.getY(event, pointerIndex); activePointerId = MotionEventCompat.getPointerId(event, 0); break; } case MotionEvent.ACTION_MOVE: { if (smileyList.getScrollY() == 0) { final int pointerIndex = MotionEventCompat.findPointerIndex(event, activePointerId); if (pointerIndex != -1) { final float y = MotionEventCompat.getY(event, pointerIndex); // Distance float dy = y - lastTouchY; isUpwardMovement = dy < 0; float targetY = smileysSelector.getY() + dy; if (targetY < toolbarHeight) { float difference = toolbarHeight - targetY; dy += difference; } else if (targetY > smileySelectorTopOffset) { float difference = targetY - smileySelectorTopOffset; dy -= difference; } smileysSelector.setY(smileysSelector.getY() + dy); // Show or hide the smileys toolbar based on current position if (isUpwardMovement && smileysSelector.getY() < replyWindowMaxHeight) { showSmileysToolbar(); } else { hideSmileysToolbar(); } } break; } } case MotionEvent.ACTION_UP: { int upAnimationThreshold = replyWindowMaxHeight - toolbarHeight; float yTranslation; ViewPropertyAnimator viewPropertyAnimator = smileysSelector.animate(); if (isUpwardMovement && smileysSelector.getY() == upAnimationThreshold) { // Do not move in that case yTranslation = 0; } else if (isUpwardMovement && smileysSelector.getY() < upAnimationThreshold) { // Moving too far, let's avoid this yTranslation = -(smileysSelector.getY() - toolbarHeight); } else { // Replace the smiley selector at its original position yTranslation = smileySelectorTopOffset - smileysSelector.getY(); } if (yTranslation != 0) { viewPropertyAnimator.translationYBy(yTranslation).setDuration(150).start(); } break; } } boolean touchConsumed; if (smileysSelector.getY() != smileySelectorTopOffset) { touchConsumed = (smileysSelector.getY() != toolbarHeight); } else { touchConsumed = false; } return touchConsumed; } }); }
From source file:com.app.afteryou.ui.staggered.StaggeredGridView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { mVelocityTracker.addMovement(ev);/*w ww. ja v a2 s . c o m*/ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: mVelocityTracker.clear(); mScroller.abortAnimation(); mLastTouchY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderY = 0; if (mTouchMode == TOUCH_MODE_FLINGING) { // Catch! setTouchMode(TOUCH_MODE_DRAGGING); return true; } break; case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(TAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did StaggeredGridView receive an inconsistent " + "event stream?"); return false; } final float y = MotionEventCompat.getY(ev, index); final float dy = y - mLastTouchY + mTouchRemainderY; final int deltaY = (int) dy; mTouchRemainderY = dy - deltaY; if (Math.abs(dy) > mTouchSlop) { setTouchMode(TOUCH_MODE_DRAGGING); return true; } } } return false; }
From source file:com.android.backups.BackupStaggeredGridView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { mVelocityTracker.addMovement(ev);//from w w w . ja v a2 s . c o m final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: mVelocityTracker.clear(); mScroller.abortAnimation(); mLastTouchY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderY = 0; if (mTouchMode == TOUCH_MODE_FLINGING) { // Catch! mTouchMode = TOUCH_MODE_DRAGGING; setTouchMode(mTouchMode); return true; } break; case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(TAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did StaggeredGridView receive an inconsistent " + "event stream?"); return false; } final float y = MotionEventCompat.getY(ev, index); final float dy = y - mLastTouchY + mTouchRemainderY; final int deltaY = (int) dy; mTouchRemainderY = dy - deltaY; if (Math.abs(dy) > mTouchSlop) { mTouchMode = TOUCH_MODE_DRAGGING; setTouchMode(mTouchMode); return true; } } } return false; }
From source file:com.runnirr.doodleviewer.display.SlidingLayer.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!mEnabled || !mIsDragging && !mLastTouchAllowed && !allowSlidingFromHereX(ev, mInitialX) && !allowSlidingFromHereY(ev, mInitialY)) { return false; }/*from ww w . j av a2 s .co m*/ final int action = ev.getAction(); if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_OUTSIDE) { mLastTouchAllowed = false; } else { mLastTouchAllowed = true; } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: completeScroll(); // Remember where the motion event started mLastX = mInitialX = ev.getX(); mLastY = mInitialY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); break; case MotionEvent.ACTION_MOVE: if (!mIsDragging) { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (pointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, pointerIndex); final float xDiff = Math.abs(x - mLastX); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastY); if (xDiff > mTouchSlop && xDiff > yDiff) { mIsDragging = true; mLastX = x; setDrawingCacheEnabled(true); } else if (yDiff > mTouchSlop && yDiff > xDiff) { mIsDragging = true; mLastY = y; setDrawingCacheEnabled(true); } } if (mIsDragging) { // Scroll to follow the motion event final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (activePointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); final float deltaX = mLastX - x; final float deltaY = mLastY - y; mLastX = x; mLastY = y; final float oldScrollX = getScrollX(); final float oldScrollY = getScrollY(); float scrollX = oldScrollX + deltaX; float scrollY = oldScrollY + deltaY; // Log.d("Layer", String.format("Layer scrollX[%f],scrollY[%f]", scrollX, scrollY)); final float leftBound, rightBound; final float bottomBound, topBound; switch (mScreenSide) { case STICK_TO_LEFT: topBound = bottomBound = rightBound = 0; leftBound = getWidth(); // How far left we can scroll break; case STICK_TO_MIDDLE: topBound = getHeight(); bottomBound = -getHeight(); leftBound = getWidth(); rightBound = -getWidth(); break; case STICK_TO_RIGHT: rightBound = -getWidth(); topBound = bottomBound = leftBound = 0; break; case STICK_TO_TOP: topBound = getHeight(); bottomBound = rightBound = leftBound = 0; break; case STICK_TO_BOTTOM: topBound = rightBound = leftBound = 0; bottomBound = -getHeight(); break; default: topBound = bottomBound = rightBound = leftBound = 0; break; } if (scrollX > leftBound) { scrollX = leftBound; } else if (scrollX < rightBound) { scrollX = rightBound; } if (scrollY > topBound) { scrollY = topBound; } else if (scrollY < bottomBound) { scrollY = bottomBound; } // TODO top/bottom bounds // Keep the precision mLastX += scrollX - (int) scrollX; mLastY += scrollY - (int) scrollY; scrollTo((int) scrollX, (int) scrollY); } break; case MotionEvent.ACTION_UP: if (mIsDragging) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocityX = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); final int initialVelocityY = (int) VelocityTrackerCompat.getYVelocity(velocityTracker, mActivePointerId); final int scrollX = getScrollX(); final int scrollY = getScrollY(); final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); final int totalDeltaX = (int) (x - mInitialX); final int totalDeltaY = (int) (y - mInitialY); boolean nextStateOpened = determineNextStateOpened(mIsOpen, scrollX, scrollY, initialVelocityX, initialVelocityY, totalDeltaX, totalDeltaY); switchLayer(nextStateOpened, true, true, initialVelocityX, initialVelocityY); mActivePointerId = INVALID_POINTER; endDrag(); } else if (mIsOpen && closeOnTapEnabled) { closeLayer(true); } else if (!mIsOpen && openOnTapEnabled) { openLayer(true); } break; case MotionEvent.ACTION_CANCEL: if (mIsDragging) { switchLayer(mIsOpen, true, true); mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mLastX = MotionEventCompat.getX(ev, index); mLastY = MotionEventCompat.getY(ev, index); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); mLastX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); mLastY = MotionEventCompat.getY(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); break; } if (mActivePointerId == INVALID_POINTER) { mLastTouchAllowed = false; } return true; }
From source file:com.bolaa.medical.view.pulltorefreshgrid.StaggeredGridView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { mVelocityTracker.addMovement(ev);/*from w w w .j a v a2s . c o m*/ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: LogUtil.d("--------------onInterceptTouchEvent ACTION_DOWN---------"); mFirstDownY = ev.getRawY(); mVelocityTracker.clear(); mScroller.abortAnimation(); mLastTouchY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderY = 0; if (mTouchMode == TOUCH_MODE_FLINGING) { // Catch! mTouchMode = TOUCH_MODE_DRAGGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL, getFirstVisiblePosition(), getLastPosition()); return true; } break; case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(TAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did StaggeredGridView receive an inconsistent " + "event stream?"); return false; } final float y = MotionEventCompat.getY(ev, index); final float dy = y - mLastTouchY + mTouchRemainderY; final int deltaY = (int) dy; mTouchRemainderY = dy - deltaY; if (Math.abs(dy) > mTouchSlop) { mTouchMode = TOUCH_MODE_DRAGGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL, getFirstVisiblePosition(), getLastPosition()); return true; } } } return false; }
From source file:com.sohu.xzd.widget.SwipeRefresh.java
@Override public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false;// w w w.jav a2 s . c om } if (!isEnabled() || mReturningToStart || canChildScrollUp()) { // Fail fast if we're not in a state where a swipe is possible return false; } switch (action) { case MotionEvent.ACTION_DOWN: mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mIsBeingDragged = false; break; case MotionEvent.ACTION_MOVE: { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (pointerIndex < 0) { Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id."); return false; } final float y = MotionEventCompat.getY(ev, pointerIndex); final float overscrollTop = (y - mInitialMotionY) * DRAG_RATE; if (mIsBeingDragged) { float originalDragPercent = overscrollTop / mTotalDragDistance; if (originalDragPercent < 0) { return false; } float dragPercent = Math.min(1f, Math.abs(originalDragPercent)); float adjustedPercent = (float) Math.max(dragPercent - .4, 0) * 5 / 3; float extraOS = Math.abs(overscrollTop) - mTotalDragDistance; float slingshotDist = mSpinnerFinalOffset; float tensionSlingshotPercent = Math.max(0, Math.min(extraOS, slingshotDist * 2) / slingshotDist); float tensionPercent = (float) ((tensionSlingshotPercent / 4) - Math.pow((tensionSlingshotPercent / 4), 2)) * 2f; float extraMove = (slingshotDist) * tensionPercent * 2; int targetY = mOriginalTargetOffsetTop + (int) ((slingshotDist * dragPercent) + extraMove); if (mRefreshHeader.getVisibility() != View.VISIBLE) { mRefreshHeader.setVisibility(View.VISIBLE); } if (overscrollTop < mTotalDragDistance) { } else { } float rotation = (-0.25f + .4f * adjustedPercent + tensionPercent * 2) * .5f; mRefreshHeader.onPull(overscrollTop, mTotalDragDistance, rotation); setTargetOffsetTopAndBottom(targetY - mCurrentTargetOffsetTop, true /* requires update */); } break; } case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: { if (mActivePointerId == INVALID_POINTER) { if (action == MotionEvent.ACTION_UP) { Log.e(LOG_TAG, "Got ACTION_UP event but don't have an active pointer id."); } return false; } final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float y = MotionEventCompat.getY(ev, pointerIndex); final float overscrollTop = (y - mInitialMotionY) * DRAG_RATE; mIsBeingDragged = false; if (overscrollTop > mTotalDragDistance) { setRefreshing(true, true /* notify */); } else { mRefreshing = false; AnimationListener listener = null; listener = new AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { startScaleDownAnimation(null); } @Override public void onAnimationRepeat(Animation animation) { } }; animateOffsetToStartPosition(mCurrentTargetOffsetTop, listener); } mActivePointerId = INVALID_POINTER; return false; } } return true; }
From source file:com.hayukleung.app.view.refresh.SwipeRefreshLayout.java
@Override public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false;//from w ww.j ava 2s . c o m } if (!isEnabled() || mReturningToStart || canChildScrollUp()) { // Fail fast if we're not in a state where a swipe is possible return false; } switch (action) { case MotionEvent.ACTION_DOWN: mLastMotionY = mInitialMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mIsBeingDragged = false; mCurrPercentage = 0; break; case MotionEvent.ACTION_MOVE: final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (pointerIndex < 0) { Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id."); return false; } final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = y - mInitialMotionY; if (!mIsBeingDragged && yDiff > mTouchSlop) { mIsBeingDragged = true; } if (mIsBeingDragged) { // User velocity passed min velocity; trigger a refresh if (yDiff > mDistanceToTriggerSync) { // User movement passed distance; trigger a refresh mIsRefreshable = true; } else { // Just track the user's movement mIsRefreshable = false; if (mLastMotionY > y && mTarget.getTop() == getPaddingTop()) { // If the user puts the view back at the top, we // don't need to. This shouldn't be considered // cancelling the gesture as the user can restart from the top. removeCallbacks(mCancel); } else { updatePositionTimeout(); } } float diff = Math.min(yDiff, mDistanceToTriggerSync); setTriggerPercentage(mAccelerateInterpolator.getInterpolation(diff / mDistanceToTriggerSync)); updateContentOffsetTop((int) (yDiff)); mLastMotionY = y; } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mLastMotionY = MotionEventCompat.getY(ev, index); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: if (mIsRefreshable) { startRefresh(); } mIsRefreshable = false; mIsBeingDragged = false; mCurrPercentage = 0; mActivePointerId = INVALID_POINTER; mCancel.run(); return false; } return true; }
From source file:com.rajul.staggeredgridview.StaggeredGridView.java
@Override public boolean onTouchEvent(MotionEvent ev) { mVelocityTracker.addMovement(ev);/*from w w w.j a v a 2s . c om*/ final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; int motionPosition = pointToPosition((int) ev.getX(), (int) ev.getY()); switch (action) { case MotionEvent.ACTION_DOWN: mVelocityTracker.clear(); mScroller.abortAnimation(); mLastTouchY = ev.getY(); mLastTouchX = ev.getX(); motionPosition = pointToPosition((int) mLastTouchX, (int) mLastTouchY); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderY = 0; if (mTouchMode != TOUCH_MODE_FLINGING && !mDataChanged && motionPosition >= 0 && getAdapter().isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_DOWN; if (mPendingCheckForTap == null) { mPendingCheckForTap = new CheckForTap(); } postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); } mMotionPosition = motionPosition; ViewCompat.postInvalidateOnAnimation(this); break; case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(TAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did StaggeredGridView receive an inconsistent " + "event stream?"); return false; } final float y = MotionEventCompat.getY(ev, index); final float dy = y - mLastTouchY + mTouchRemainderY; final int deltaY = (int) dy; mTouchRemainderY = dy - deltaY; if (Math.abs(dy) > mTouchSlop) { setTouchMode(TOUCH_MODE_DRAGGING); } if (mTouchMode == TOUCH_MODE_DRAGGING) { mLastTouchY = y; if (!trackMotionScroll(deltaY, true)) { // Break fling velocity if we impacted an edge. mVelocityTracker.clear(); } } } break; case MotionEvent.ACTION_CANCEL: setTouchMode(TOUCH_MODE_IDLE); mTouchMode = TOUCH_MODE_IDLE; setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mPendingCheckForLongPress); } if (mTopEdge != null) { mTopEdge.onRelease(); mBottomEdge.onRelease(); } break; case MotionEvent.ACTION_UP: { mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final float velocity = VelocityTrackerCompat.getYVelocity(mVelocityTracker, mActivePointerId); final int prevTouchMode = mTouchMode; if (Math.abs(velocity) > mFlingVelocity) { // TODO mTouchMode = TOUCH_MODE_FLINGING; setTouchMode(TOUCH_MODE_FLINGING); mScroller.fling(0, 0, 0, (int) velocity, 0, 0, Integer.MIN_VALUE, Integer.MAX_VALUE); mLastTouchY = 0; ViewCompat.postInvalidateOnAnimation(this); } else { mTouchMode = TOUCH_MODE_IDLE; setTouchMode(TOUCH_MODE_IDLE); } if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { // TODO : handle mTouchMode = TOUCH_MODE_TAP; } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } switch (prevTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: final View child = getChildAt(motionPosition - mFirstPosition); final float x = ev.getX(); final boolean inList = x > getPaddingLeft() && x < getWidth() - getPaddingRight(); if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { // TODO ViewCompat.postInvalidateOnAnimation(this); mPerformClick = new PerformClick(); } final PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { final Handler handlerTouch = getHandler(); if (handlerTouch != null) { handlerTouch.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? mPendingCheckForTap : mPendingCheckForLongPress); } if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; layoutChildren(mDataChanged); child.setPressed(true); positionSelector(mMotionPosition, 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; child.setPressed(false); setPressed(false); if (!mDataChanged) { performClick.run(); } } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } return true; } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } updateSelectorState(); } break; } return true; }
From source file:com.bluepixel.android.sgpool.ui.widget.SwipeRefreshLayout.java
@Override public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false;//w w w. j a v a 2s .c o m } if (!isEnabled() || mReturningToStart || canChildScrollUp()) { // Fail fast if we're not in a state where a swipe is possible return false; } switch (action) { case MotionEvent.ACTION_DOWN: mLastMotionY = mInitialMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mIsBeingDragged = false; mCurrPercentage = 0; break; case MotionEvent.ACTION_MOVE: final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (pointerIndex < 0) { Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id."); return false; } final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = y - mInitialMotionY; if (!mIsBeingDragged && yDiff > mTouchSlop) { mIsBeingDragged = true; } if (mIsBeingDragged) { // User velocity passed min velocity; trigger a refresh if (yDiff > mDistanceToTriggerSync) { // User movement passed distance; trigger a refresh startRefresh(); } else { // Just track the user's movement setTriggerPercentage(mAccelerateInterpolator.getInterpolation(yDiff / mDistanceToTriggerSync)); updateContentOffsetTop((int) (yDiff)); if (mLastMotionY > y && mTarget.getTop() == getPaddingTop()) { // If the user puts the view back at the top, we // don't need to. This shouldn't be considered // cancelling the gesture as the user can restart from the top. removeCallbacks(mCancel); } else { updatePositionTimeout(); } } mLastMotionY = y; } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mLastMotionY = MotionEventCompat.getY(ev, index); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mIsBeingDragged = false; mCurrPercentage = 0; mActivePointerId = INVALID_POINTER; return false; } return true; }