List of usage examples for android.support.v4.view MotionEventCompat getPointerId
public static int getPointerId(MotionEvent event, int pointerIndex)
From source file:com.limxing.library.PullToRefresh.SwipeRefreshLayout.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { try {/*from w w w . j a v a 2 s . c om*/ ensureTarget(); final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false; } if (!isEnabled() || mReturningToStart) { // Fail fast if we're not in a state where a swipe is possible return false; } if (isRefreshing()) { return false; } if (mLoading) { return false; } switch (action) { case MotionEvent.ACTION_DOWN: mInitialMotionY = ev.getY(); mInitialMotionX = ev.getX(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mIsBeingDragged = false; up = canChildScrollUp(); down = canChildScrollDown(); break; case MotionEvent.ACTION_MOVE: if (mActivePointerId == INVALID_POINTER) { Log.e(LOG_TAG, "Got ACTION_MOVE event but don't have an active pointer id."); return false; } 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 x = MotionEventCompat.getX(ev, pointerIndex); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = y - mInitialMotionY; final float adx = Math.abs(x - mInitialMotionX); final float ady = Math.abs(y - mInitialMotionY); if (up) { // ?? if (down) { // ?? return false; } else { if (pull2load) { double angle = Math.atan(adx / ady); if (-yDiff > mTouchSlop && (angle < trigger_angle)) { // direction = 1; mIsBeingDragged = true; } } } } else { if (pull2refresh) { double angle = Math.atan(adx / ady); if (yDiff > mTouchSlop && (angle < trigger_angle)) { direction = 0; mIsBeingDragged = true; } } } break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; break; } return mIsBeingDragged; } catch (IllegalArgumentException e) { Log.e("error", e.getMessage()); return false; } }
From source file:com.customviewcollection.nestedscroll.NestedScrollView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*/*from ww w . j a va 2 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. */ /* * Shortcut the most recurring case: the user is in the dragging * state and he is moving his finger. We want to intercept this * motion. */ final int action = ev.getAction(); if ((action == MotionEvent.ACTION_MOVE) && (mIsBeingDragged)) { return true; } switch (action & MotionEventCompat.ACTION_MASK) { 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); if (pointerIndex == -1) { Log.e(TAG, "Invalid pointerId=" + activePointerId + " in onInterceptTouchEvent"); break; } final int y = (int) MotionEventCompat.getY(ev, pointerIndex); final int yDiff = Math.abs(y - mLastMotionY); if (yDiff > mTouchSlop && (getNestedScrollAxes() & ViewCompat.SCROLL_AXIS_VERTICAL) == 0) { mIsBeingDragged = true; mLastMotionY = y; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); mNestedYOffset = 0; final ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } } break; } case MotionEvent.ACTION_DOWN: { final int y = (int) ev.getY(); if (!inChild((int) ev.getX(), (int) y)) { mIsBeingDragged = false; recycleVelocityTracker(); break; } /* * Remember location of down touch. * ACTION_DOWN always refers to pointer index 0. */ mLastMotionY = y; mActivePointerId = MotionEventCompat.getPointerId(ev, 0); initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); /* * If being flinged and user touches the screen, initiate drag; * otherwise don't. mScroller.isFinished should be false when * being flinged. We need to call computeScrollOffset() first so that * isFinished() is correct. */ mScroller.computeScrollOffset(); mIsBeingDragged = !mScroller.isFinished(); startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL); break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: /* Release the drag */ mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); if (mScroller.springBack(getScrollX(), getScrollY(), 0, 0, 0, getScrollRange())) { ViewCompat.postInvalidateOnAnimation(this); } stopNestedScroll(); break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.k.xdiary.views.MyNestedScrollView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*// www . j a va 2 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. */ /* * Shortcut the most recurring case: the user is in the dragging * state and he is moving his finger. We want to intercept this * motion. */ final int action = ev.getAction(); if ((action == MotionEvent.ACTION_MOVE) && (mIsBeingDragged)) { return true; } switch (action & MotionEventCompat.ACTION_MASK) { 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); if (pointerIndex == -1) { Log.e(TAG, "Invalid pointerId=" + activePointerId + " in onInterceptTouchEvent"); break; } final int y = (int) MotionEventCompat.getY(ev, pointerIndex); final int yDiff = Math.abs(y - mLastMotionY); if (yDiff > mTouchSlop && (getNestedScrollAxes() & ViewCompat.SCROLL_AXIS_VERTICAL) == 0) { mIsBeingDragged = true; mLastMotionY = y; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); mNestedYOffset = 0; final ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } } break; } case MotionEvent.ACTION_DOWN: { final int y = (int) ev.getY(); if (!inChild((int) ev.getX(), (int) y)) { mIsBeingDragged = false; recycleVelocityTracker(); break; } /* * Remember location of down touch. * ACTION_DOWN always refers to pointer index 0. */ mLastMotionY = y; mActivePointerId = MotionEventCompat.getPointerId(ev, 0); initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); /* * If being flinged and user touches the screen, initiate drag; * otherwise don't. mScroller.isFinished should be false when * being flinged. We need to call computeScrollOffset() first so that * isFinished() is correct. */ mScroller.computeScrollOffset(); mIsBeingDragged = !mScroller.isFinished(); startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL); break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: /* Release the drag */ mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); if (mScroller.springBack(getScrollX(), getScrollY(), 0, 0, 0, getScrollRange())) { ViewCompat.postInvalidateOnAnimation(this); } stopNestedScroll(); break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.apptentive.android.sdk.view.ApptentiveNestedScrollView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*//from ww w. j a v a 2s.com * 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. */ /* * Shortcut the most recurring case: the user is in the dragging * state and he is moving his finger. We want to intercept this * motion. */ final int action = ev.getAction(); if ((action == MotionEvent.ACTION_MOVE) && (mIsBeingDragged)) { return true; } switch (action & MotionEventCompat.ACTION_MASK) { 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); if (pointerIndex == -1) { Log.e(TAG, "Invalid pointerId=" + activePointerId + " in onInterceptTouchEvent"); break; } final int y = (int) MotionEventCompat.getY(ev, pointerIndex); final int yDiff = Math.abs(y - mLastMotionY); if (yDiff > mTouchSlop && (getNestedScrollAxes() & ViewCompat.SCROLL_AXIS_VERTICAL) == 0) { mIsBeingDragged = true; mLastMotionY = y; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); mNestedYOffset = 0; final ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } } break; } case MotionEvent.ACTION_DOWN: { final int y = (int) ev.getY(); if (!inChild((int) ev.getX(), y)) { mIsBeingDragged = false; recycleVelocityTracker(); break; } /* * Remember location of down touch. * ACTION_DOWN always refers to pointer index 0. */ mLastMotionY = y; mActivePointerId = MotionEventCompat.getPointerId(ev, 0); initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); /* * If being flinged and user touches the screen, initiate drag; * otherwise don't. mScroller.isFinished should be false when * being flinged. */ //mIsBeingDragged = !mScroller.isFinished(); mIsBeingDragged = false; startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL); break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: /* Release the drag */ mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); if (mScroller.springBack(getScrollX(), getScrollY(), 0, 0, 0, getScrollRange())) { ViewCompat.postInvalidateOnAnimation(this); } stopNestedScroll(); break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.fish.nsd.MyNestedScrollView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*/*w w w .j a v 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. */ /* * Shortcut the most recurring case: the user is in the dragging * state and he is moving his finger. We want to intercept this * motion. */ final int action = ev.getAction(); if ((action == MotionEvent.ACTION_MOVE) && (mIsBeingDragged)) { return true; } switch (action & MotionEventCompat.ACTION_MASK) { 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); if (pointerIndex == -1) { Log.e(TAG, "Invalid pointerId=" + activePointerId + " in onInterceptTouchEvent"); break; } final int y = (int) MotionEventCompat.getY(ev, pointerIndex); final int yDiff = Math.abs(y - mLastMotionY); if (yDiff > mTouchSlop && (getNestedScrollAxes() & ViewCompat.SCROLL_AXIS_VERTICAL) == 0) { mIsBeingDragged = true; mLastMotionY = y; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); mNestedYOffset = 0; final ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } } break; } case MotionEvent.ACTION_DOWN: { final int y = (int) ev.getY(); if (!inChild((int) ev.getX(), (int) y)) { mIsBeingDragged = false; recycleVelocityTracker(); break; } /* * Remember location of down touch. * ACTION_DOWN always refers to pointer index 0. */ mLastMotionY = y; mActivePointerId = MotionEventCompat.getPointerId(ev, 0); initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); /* * If being flinged and user touches the screen, initiate drag; * otherwise don't. mScroller.isFinished should be false when * being flinged. We need to call computeScrollOffset() first so that * isFinished() is correct. */ mScroller.computeScrollOffset(); if (this instanceof ParentScrollView) { LogUtil.fish("down intecepte: isfling " + !mScroller.isFinished()); } mIsBeingDragged = !mScroller.isFinished(); startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL); break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: /* Release the drag */ mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); if (mScroller.springBack(getScrollX(), getScrollY(), 0, 0, 0, getScrollRange())) { ViewCompat.postInvalidateOnAnimation(this); } stopNestedScroll(); break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.gmy.widget.swiperefresh.SwipeRefreshLayout.java
@Override public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false;/*w ww. ja v a2s.c om*/ } if (!isEnabled() || mReturningToStart) { // 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; mStartPoint = mInitialMotionY; up = canChildScrollUp(); down = canChildScrollDown(); 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; final float yDiff = y - mStartPoint; if ((mLastDirection == Mode.PULL_FROM_START && yDiff < 0) || (mLastDirection == Mode.PULL_FROM_END && yDiff > 0)) { return true; } if (!mIsBeingDragged && (yDiff > 0 && mLastDirection == Mode.PULL_FROM_START) || (yDiff < 0 && mLastDirection == Mode.PULL_FROM_END)) { mIsBeingDragged = true; } if (mIsBeingDragged) { // User velocity passed min velocity; trigger a refresh if (yDiff > mDistanceToTriggerSync) { // User movement passed distance; trigger a refresh if (mLastDirection == Mode.PULL_FROM_END) { return true; } if ((mMode == Mode.PULL_FROM_START) || (mMode == Mode.BOTH)) { mLastDirection = Mode.PULL_FROM_START; startRefresh(); } } else if (-yDiff > mDistanceToTriggerSync) { if ((!up && !down && !loadNoFull) || mLastDirection == Mode.PULL_FROM_START) { return true; } if ((mMode == Mode.PULL_FROM_END) || (mMode == Mode.BOTH)) { mLastDirection = Mode.PULL_FROM_END; startLoad(); } } else { if (!up && !down && yDiff < 0 && !loadNoFull) { return true; } // Just track the user's movement // setTriggerPercentage( mAccelerateInterpolator.getInterpolation(Math.abs(yDiff) / mDistanceToTriggerSync)); updateContentOffsetTop((int) yDiff); if (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); mLastDirection = Mode.DISABLED; } else { mDirection = (yDiff > 0 ? 1 : -1); 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; mLastDirection = Mode.DISABLED; return false; } return true; }
From source file:bhav.swipeaction.SwipeAction.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { ensureTarget();/*from w w w .j a v a 2 s .c o m*/ final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false; } if (!isEnabled() || mReturningToStart || canChildScrollUp() || mRefreshing || mNestedScrollInProgress) { // Fail fast if we're not in a state where a swipe is possible return false; } switch (action) { case MotionEvent.ACTION_DOWN: setTargetOffsetTopAndBottom(mOriginalOffsetTop - mCircleView.getTop()); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mIsBeingDragged = false; final float initialDownY = getMotionEventY(ev, mActivePointerId); if (initialDownY == -1) { return false; } mInitialDownY = initialDownY; break; case MotionEvent.ACTION_MOVE: if (mActivePointerId == INVALID_POINTER) { Log.e(TAG, "Got ACTION_MOVE event but don't have an active pointer id."); return false; } final float y = getMotionEventY(ev, mActivePointerId); if (y == -1) { return false; } final float yDiff = y - mInitialDownY; if (yDiff > mTouchSlop && !mIsBeingDragged) { mInitialMotionY = mInitialDownY + mTouchSlop; mIsBeingDragged = true; // mProgress.setAlpha(STARTING_PROGRESS_ALPHA); // icon.setAlpha(STARTING_PROGRESS_ALPHA); } break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; break; } return mIsBeingDragged; }
From source file:com.cmbb.smartkids.widget.NestedScrollView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { /*/* w ww . j a va2 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. */ /* * Shortcut the most recurring case: the user is in the dragging * state and he is moving his finger. We want to intercept this * motion. */ final int action = ev.getAction(); if ((action == MotionEvent.ACTION_MOVE) && (mIsBeingDragged)) { return true; } switch (action & MotionEventCompat.ACTION_MASK) { 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); if (pointerIndex == -1) { Log.e(TAG, "Invalid pointerId=" + activePointerId + " in onInterceptTouchEvent"); break; } final int y = (int) MotionEventCompat.getY(ev, pointerIndex); final int yDiff = Math.abs(y - mLastMotionY); if (yDiff > mTouchSlop && (getNestedScrollAxes() & ViewCompat.SCROLL_AXIS_VERTICAL) == 0) { mIsBeingDragged = true; mLastMotionY = y; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); mNestedYOffset = 0; final ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } } break; } case MotionEvent.ACTION_DOWN: { final int y = (int) ev.getY(); if (!inChild((int) ev.getX(), (int) y)) { // mIsBeingDragged = !mScroller.isFinished(); mIsBeingDragged = false; recycleVelocityTracker(); break; } /* * Remember location of down touch. * ACTION_DOWN always refers to pointer index 0. */ mLastMotionY = y; mActivePointerId = MotionEventCompat.getPointerId(ev, 0); initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); /* * If being flinged and user touches the screen, initiate drag; * otherwise don't. mScroller.isFinished should be false when * being flinged. */ // mIsBeingDragged = !mScroller.isFinished(); mIsBeingDragged = false; startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL); break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: /* Release the drag */ mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); if (mScroller.springBack(getScrollX(), getScrollY(), 0, 0, 0, getScrollRange())) { ViewCompat.postInvalidateOnAnimation(this); } stopNestedScroll(); break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; } /* * The only time we want to intercept motion events is if we are in the * drag mode. */ return mIsBeingDragged; }
From source file:com.edgar.banner.BannerPagerView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { switch (ev.getAction()) { case MotionEvent.ACTION_DOWN: mLastMotionX = ev.getX();// w ww . j a va 2 s.co m mLastMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); downPauseAutoPlay(); break; case MotionEvent.ACTION_MOVE: if (isBannerLessThanOne()) break; //?ViewPager. 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 (BuildConfig.DEBUG) Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff); if (xDiff > mTouchSlop && xDiff * 0.5f > yDiff) { ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } } break; default: break; } return super.onInterceptTouchEvent(ev); }
From source file:com.dystu.toolbar.widget.MySwipeRefreshLayout.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { ensureTarget();/*from ww w . j ava2s . c o m*/ final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false; } if (!isEnabled() || mReturningToStart || canChildScrollUp() || mRefreshing) { // Fail fast if we're not in a state where a swipe is possible return false; } switch (action) { case MotionEvent.ACTION_DOWN: setTargetOffsetTopAndBottom(mOriginalOffsetTop - mCircleView.getTop(), true); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mIsBeingDragged = false; final float initialMotionY = getMotionEventY(ev, mActivePointerId); if (initialMotionY == -1) { return false; } mInitialMotionY = initialMotionY; case MotionEvent.ACTION_MOVE: if (mActivePointerId == INVALID_POINTER) { Log.e(LOG_TAG, "Got ACTION_MOVE event but don't have an active pointer id."); return false; } final float y = getMotionEventY(ev, mActivePointerId); if (y == -1) { return false; } final float yDiff = y - mInitialMotionY; if (yDiff > mTouchSlop && !mIsBeingDragged) { mIsBeingDragged = true; mProgress.setAlpha(STARTING_PROGRESS_ALPHA); } break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; break; } return mIsBeingDragged; }