List of usage examples for android.support.v4.view MotionEventCompat ACTION_POINTER_DOWN
int ACTION_POINTER_DOWN
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From source file:com.lynx.lib.widget.swipelayout.SwipeRefreshLayout.java
@Override public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false;//from w w w. j av a 2 s . co m } 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:com.cdwx.moka.widget.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.co m*/ } 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:com.zzti.fyg.widgets.SwipeRefreshLayout.java
@Override public boolean onTouchEvent(MotionEvent ev) { try {/*from ww w. j ava2 s. c om*/ 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(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mIsBeingDragged = false; 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; if (up) { // ?? if (down) { // ?? return false; } else { if (-yDiff > mTouchSlop) { // direction = 1; mIsBeingDragged = true; } } } else { if (yDiff > mTouchSlop) { direction = 0; mIsBeingDragged = true; } } if (mIsBeingDragged) { if (direction == 0) { // User velocity passed min velocity; trigger a refresh if (yDiff > mDistanceToTriggerSync) { state = RELEASE_TO_REFRESH; defaultText = releaseDownLabel; } else { state = PULL_TO_REFRESH; defaultText = pullDownLabel; } // if (latestRefreshTime.equals("")) { // latestRefreshTime = formatter.format(new Date()); // } latestRefreshTime = formatter.format(new Date()); setProgressBarProperty(mTarget.getTop()); updateContentOffsetTop((int) yDiff >> 1); } else { if (-yDiff > mDistanceToTriggerSync) { state = RELEASE_TO_REFRESH; defaultText = releaseUpLabel; } else { state = PULL_TO_REFRESH; defaultText = pullUpLabel; } // if (latestLoadTime.equals("")) { // latestLoadTime = formatter.format(new Date()); // } latestLoadTime = formatter.format(new Date()); setProgressBarProperty(mTarget.getTop()); updateContentOffsetBottom((int) yDiff >> 1); } } 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: final int mPointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (mPointerIndex < 0) { Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id."); return false; } final float mY = MotionEventCompat.getY(ev, mPointerIndex); final float mYDiff = mY - mInitialMotionY; if (!mIsBeingDragged && mYDiff > mTouchSlop) { mIsBeingDragged = true; } if (direction == 0) { if (mIsBeingDragged) { if (mYDiff > mDistanceToTriggerSync) { // User movement passed distance; trigger a refresh startRefresh(); } else { mReturnToStartPosition.run(); } } } else { if (mIsBeingDragged) { if (-mYDiff > mDistanceToTriggerSync) { // User movement passed distance; trigger a refresh startLoad(); } else { mReturnToStartPosition.run(); } } } case MotionEvent.ACTION_CANCEL: mIsBeingDragged = false; mActivePointerId = INVALID_POINTER; return false; } return true; } catch (IllegalArgumentException e) { Log.e("error", e.getMessage()); return false; } }
From source file:com.example.googleplay.view.SwipeRefreshLayout.java
@Override public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false;//from ww w . j a v a2 s .c o m } 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: break; case MotionEvent.ACTION_CANCEL: mIsBeingDragged = false; mCurrPercentage = 0; mActivePointerId = INVALID_POINTER; mLastDirection = Mode.DISABLED; return false; } return true; }
From source file:com.yimi.onemeter.widget.support.SwipeRefreshLayout.java
@Override public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false;//from w w w. j a v a 2 s .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: 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) { mProgress.showArrow(true); 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 = mUsingCustomStart ? mSpinnerFinalOffset - mOriginalOffsetTop : 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 = mOriginalOffsetTop + (int) ((slingshotDist * dragPercent) + extraMove); // where 1.0f is a full circle if (mCircleView.getVisibility() != View.VISIBLE) { mCircleView.setVisibility(View.VISIBLE); } if (!mScale) { ViewCompat.setScaleX(mCircleView, 1f); ViewCompat.setScaleY(mCircleView, 1f); } if (overscrollTop < mTotalDragDistance) { if (mScale) { setAnimationProgress(overscrollTop / mTotalDragDistance); } if (mProgress.getAlpha() > STARTING_PROGRESS_ALPHA && !isAnimationRunning(mAlphaStartAnimation)) { // Animate the alpha startProgressAlphaStartAnimation(); } float strokeStart = (float) (adjustedPercent * .8f); mProgress.setStartEndTrim(0f, Math.min(MAX_PROGRESS_ANGLE, strokeStart)); mProgress.setArrowScale(Math.min(1f, adjustedPercent)); } else { if (mProgress.getAlpha() < MAX_ALPHA && !isAnimationRunning(mAlphaMaxAnimation)) { // Animate the alpha startProgressAlphaMaxAnimation(); } } float rotation = (-0.25f + .4f * adjustedPercent + tensionPercent * 2) * .5f; mProgress.setProgressRotation(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 { // cancel refresh mRefreshing = false; mProgress.setStartEndTrim(0f, 0f); Animation.AnimationListener listener = null; if (!mScale) { listener = new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { if (!mScale) { startScaleDownAnimation(null); } } @Override public void onAnimationRepeat(Animation animation) { } }; } animateOffsetToStartPosition(mCurrentTargetOffsetTop, listener); mProgress.showArrow(false); } mActivePointerId = INVALID_POINTER; return false; } } return false; }
From source file:com.purezhihudaily.ui.widget.SwipeRefreshLayout.java
@SuppressLint({ "NewApi", "ClickableViewAccessibility" }) @Override/*w w w.j a va 2s. c om*/ public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false; } 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) { mProgress.showArrow(true); 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 = mUsingCustomStart ? mSpinnerFinalOffset - mOriginalOffsetTop : 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 = mOriginalOffsetTop + (int) ((slingshotDist * dragPercent) + extraMove); // where 1.0f is a full circle if (mCircleView.getVisibility() != View.VISIBLE) { mCircleView.setVisibility(View.VISIBLE); } if (!mScale) { ViewCompat.setScaleX(mCircleView, 1f); ViewCompat.setScaleY(mCircleView, 1f); } if (overscrollTop < mTotalDragDistance) { if (mScale) { setAnimationProgress(overscrollTop / mTotalDragDistance); } if (mProgress.getAlpha() > STARTING_PROGRESS_ALPHA && !isAnimationRunning(mAlphaStartAnimation)) { // Animate the alpha startProgressAlphaStartAnimation(); } float strokeStart = (float) (adjustedPercent * .8f); mProgress.setStartEndTrim(0f, Math.min(MAX_PROGRESS_ANGLE, strokeStart)); mProgress.setArrowScale(Math.min(1f, adjustedPercent)); } else { if (mProgress.getAlpha() < MAX_ALPHA && !isAnimationRunning(mAlphaMaxAnimation)) { // Animate the alpha startProgressAlphaMaxAnimation(); } } float rotation = (-0.25f + .4f * adjustedPercent + tensionPercent * 2) * .5f; mProgress.setProgressRotation(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 { // cancel refresh mRefreshing = false; mProgress.setStartEndTrim(0f, 0f); Animation.AnimationListener listener = null; if (!mScale) { listener = new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { if (!mScale) { startScaleDownAnimation(null); } } @Override public void onAnimationRepeat(Animation animation) { } }; } animateOffsetToStartPosition(mCurrentTargetOffsetTop, listener); mProgress.showArrow(false); } mActivePointerId = INVALID_POINTER; return false; } } return true; }
From source file:com.hengye.swiperefresh.SwipeRefreshCustomLayout.java
@SuppressLint("ClickableViewAccessibility") @Override//from ww w . ja va 2 s . com public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false; } 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 extraOS = Math.abs(overscrollTop) - mTotalDragDistance; float slingshotDist = mUsingCustomStart ? mSpinnerFinalOffset - mOriginalOffsetTop : 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 = mOriginalOffsetTop + (int) ((slingshotDist * dragPercent) + extraMove); // where 1.0f is a full circle if (mLoadingView.getVisibility() != View.VISIBLE) { mLoadingView.setVisibility(View.VISIBLE); } if (!mScale) { ViewCompat.setScaleX(mLoadingView, 1f); ViewCompat.setScaleY(mLoadingView, 1f); } if (overscrollTop < mTotalDragDistance) { if (mScale) { setAnimationProgress(overscrollTop / mTotalDragDistance); } if (mLoadingView.getAlpha() > STARTING_PROGRESS_ALPHA && !isAnimationRunning(mAlphaStartAnimation)) { // Animate the alpha startProgressAlphaStartAnimation(); } } else { if (mLoadingView.getAlpha() < MAX_ALPHA && !isAnimationRunning(mAlphaMaxAnimation)) { // Animate the alpha startProgressAlphaMaxAnimation(); } } 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 { // cancel refresh mRefreshing = false; Animation.AnimationListener listener = null; if (!mScale) { listener = new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { if (!mScale) { startScaleDownAnimation(null); } } @Override public void onAnimationRepeat(Animation animation) { } }; } animateOffsetToStartPosition(mCurrentTargetOffsetTop, listener); } mActivePointerId = INVALID_POINTER; return false; } } return true; }
From source file:com.hxqc.mall.core.views.CustomScrollView.java
@Override public boolean onTouchEvent(MotionEvent ev) { initVelocityTrackerIfNotExists();/* ww w .j ava 2 s .c om*/ MotionEvent vtev = MotionEvent.obtain(ev); final int actionMasked = MotionEventCompat.getActionMasked(ev); if (actionMasked == MotionEvent.ACTION_DOWN) { mNestedYOffset = 0; } vtev.offsetLocation(0, mNestedYOffset); switch (actionMasked) { case MotionEvent.ACTION_DOWN: { if (getChildCount() == 0) { return false; } if ((mIsBeingDragged = !mScroller.isFinished())) { final ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } } /* * If being flinged and user touches, stop the fling. isFinished * will be false if being flinged. */ if (!mScroller.isFinished()) { mScroller.abortAnimation(); } // Remember where the motion event started mLastMotionY = (int) ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL); break; } case MotionEvent.ACTION_MOVE: final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (activePointerIndex == -1) { DebugLog.e(TAG, "Invalid pointerId=" + mActivePointerId + " in onTouchEvent"); break; } final int y = (int) MotionEventCompat.getY(ev, activePointerIndex); int deltaY = mLastMotionY - y; if (dispatchNestedPreScroll(0, deltaY, mScrollConsumed, mScrollOffset)) { deltaY -= mScrollConsumed[1]; vtev.offsetLocation(0, mScrollOffset[1]); mNestedYOffset += mScrollOffset[1]; } if (!mIsBeingDragged && Math.abs(deltaY) > mTouchSlop) { final ViewParent parent = getParent(); if (parent != null) { parent.requestDisallowInterceptTouchEvent(true); } mIsBeingDragged = true; if (deltaY > 0) { deltaY -= mTouchSlop; } else { deltaY += mTouchSlop; } } if (mIsBeingDragged) { // Scroll to follow the motion event mLastMotionY = y - mScrollOffset[1]; final int oldY = getScrollY(); final int range = getScrollRange(); final int overscrollMode = ViewCompat.getOverScrollMode(this); boolean canOverscroll = overscrollMode == ViewCompat.OVER_SCROLL_ALWAYS || (overscrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS && range > 0); // Calling overScrollByCompat will call onOverScrolled, which // calls onScrollChanged if applicable. if (overScrollByCompat(0, deltaY, 0, getScrollY(), 0, range, 0, 0, true) && !hasNestedScrollingParent()) { // Break our velocity if we hit a scroll barrier. mVelocityTracker.clear(); } final int scrolledDeltaY = getScrollY() - oldY; final int unconsumedY = deltaY - scrolledDeltaY; if (dispatchNestedScroll(0, scrolledDeltaY, 0, unconsumedY, mScrollOffset)) { mLastMotionY -= mScrollOffset[1]; vtev.offsetLocation(0, mScrollOffset[1]); mNestedYOffset += mScrollOffset[1]; } else if (canOverscroll) { ensureGlows(); final int pulledToY = oldY + deltaY; if (pulledToY < 0) { mEdgeGlowTop.onPull((float) deltaY / getHeight(), MotionEventCompat.getX(ev, activePointerIndex) / getWidth()); if (!mEdgeGlowBottom.isFinished()) { mEdgeGlowBottom.onRelease(); } } else if (pulledToY > range) { mEdgeGlowBottom.onPull((float) deltaY / getHeight(), 1.f - MotionEventCompat.getX(ev, activePointerIndex) / getWidth()); if (!mEdgeGlowTop.isFinished()) { mEdgeGlowTop.onRelease(); } } if (mEdgeGlowTop != null && (!mEdgeGlowTop.isFinished() || !mEdgeGlowBottom.isFinished())) { ViewCompat.postInvalidateOnAnimation(this); } } } break; case MotionEvent.ACTION_UP: if (mIsBeingDragged) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); int initialVelocity = (int) VelocityTrackerCompat.getYVelocity(velocityTracker, mActivePointerId); if ((Math.abs(initialVelocity) > mMinimumVelocity)) { flingWithNestedDispatch(-initialVelocity); } mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEvent.ACTION_CANCEL: if (mIsBeingDragged && getChildCount() > 0) { mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mLastMotionY = (int) MotionEventCompat.getY(ev, index); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); mLastMotionY = (int) MotionEventCompat.getY(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); break; } if (mVelocityTracker != null) { mVelocityTracker.addMovement(vtev); } vtev.recycle(); return true; }
From source file:com.example.swiperefresh.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 a2 s . c o m*/ } 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:com.dystu.toolbar.widget.MySwipeRefreshLayout.java
@Override public boolean onTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); if (mReturningToStart && action == MotionEvent.ACTION_DOWN) { mReturningToStart = false;// ww w .j av a 2s . 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) { mProgress.showArrow(true); 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 = mUsingCustomStart ? mSpinnerFinalOffset - mOriginalOffsetTop : 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 = mOriginalOffsetTop + (int) ((slingshotDist * dragPercent) + extraMove); // where 1.0f is a full circle if (mCircleView.getVisibility() != View.VISIBLE) { mCircleView.setVisibility(View.VISIBLE); } if (!mScale) { ViewCompat.setScaleX(mCircleView, 1f); ViewCompat.setScaleY(mCircleView, 1f); } if (overscrollTop < mTotalDragDistance) { if (mScale) { setAnimationProgress(overscrollTop / mTotalDragDistance); } if (mProgress.getAlpha() > STARTING_PROGRESS_ALPHA && !isAnimationRunning(mAlphaStartAnimation)) { // Animate the alpha startProgressAlphaStartAnimation(); } float strokeStart = (float) (adjustedPercent * .8f); mProgress.setStartEndTrim(0f, Math.min(MAX_PROGRESS_ANGLE, strokeStart)); mProgress.setArrowScale(Math.min(1f, adjustedPercent)); } else { if (mProgress.getAlpha() < MAX_ALPHA && !isAnimationRunning(mAlphaMaxAnimation)) { // Animate the alpha startProgressAlphaMaxAnimation(); } } float rotation = (-0.25f + .4f * adjustedPercent + tensionPercent * 2) * .5f; mProgress.setProgressRotation(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 { // cancel refresh mRefreshing = false; mProgress.setStartEndTrim(0f, 0f); Animation.AnimationListener listener = null; if (!mScale) { listener = new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { if (!mScale) { startScaleDownAnimation(null); } } @Override public void onAnimationRepeat(Animation animation) { } }; } animateOffsetToStartPosition(mCurrentTargetOffsetTop, listener); mProgress.showArrow(false); } mActivePointerId = INVALID_POINTER; return false; } } return true; }