private void onRelease(boolean stayForLoading) { tryToPerformRefresh(); if (mStatus == PTR_STATUS_LOADING) { // keep header for fresh if (mKeepHeaderWhenRefresh) { // scroll header back if (mPtrIndicator.isOverOffsetToKeepHeaderWhileLoading() && !stayForLoading) { mScrollChecker.tryToScrollTo( mPtrIndicator.getOffsetToKeepHeaderWhileLoading(), mDurationToClose); } else { // do nothing } } else { tryScrollBackToTopWhileLoading(); } } else { if (mStatus == PTR_STATUS_COMPLETE) { notifyUIRefreshComplete(false); } else { tryScrollBackToTopAbortRefresh(); } } }
@Override protected void onDetachedFromWindow() { super.onDetachedFromWindow(); if (mScrollChecker != null) { mScrollChecker.destroy(); } if (mPerformRefreshCompleteDelay != null) { removeCallbacks(mPerformRefreshCompleteDelay); } }
public void autoRefresh(boolean atOnce, int duration) { if (mStatus != PTR_STATUS_INIT) { return; } mFlag |= atOnce ? FLAG_AUTO_REFRESH_AT_ONCE : FLAG_AUTO_REFRESH_BUT_LATER; mStatus = PTR_STATUS_PREPARE; if (mPtrUIHandlerHolder.hasHandler()) { mPtrUIHandlerHolder.onUIRefreshPrepare(this); if (DEBUG) { PtrCLog.i(LOG_TAG, "PtrUIHandler: onUIRefreshPrepare, mFlag %s", mFlag); } } mScrollChecker.tryToScrollTo(mPtrIndicator.getOffsetToRefresh(), duration); if (atOnce) { mStatus = PTR_STATUS_LOADING; performRefresh(); } }
/** Scroll back to to if is not under touch */ private void tryScrollBackToTop() { if (!mPtrIndicator.isUnderTouch()) { mScrollChecker.tryToScrollTo(PtrIndicator.POS_START, mDurationToCloseHeader); } }
@Override public boolean dispatchTouchEvent(MotionEvent e) { if (!isEnabled() || mContent == null || mHeaderView == null) { return dispatchTouchEventSupper(e); } int action = e.getAction(); switch (action) { case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: mPtrIndicator.onRelease(); if (mPtrIndicator.hasLeftStartPosition()) { if (DEBUG) { PtrCLog.d(LOG_TAG, "call onRelease when user release"); } onRelease(false); if (mPtrIndicator.hasMovedAfterPressedDown()) { sendCancelEvent(); return true; } return dispatchTouchEventSupper(e); } else { return dispatchTouchEventSupper(e); } case MotionEvent.ACTION_DOWN: mHasSendCancelEvent = false; mPtrIndicator.onPressDown(e.getX(), e.getY()); mScrollChecker.abortIfWorking(); mPreventForHorizontal = false; // The cancel event will be sent once the position is moved. // So let the event pass to children. // fix #93, #102 dispatchTouchEventSupper(e); return true; case MotionEvent.ACTION_MOVE: mLastMoveEvent = e; mPtrIndicator.onMove(e.getX(), e.getY()); float offsetX = mPtrIndicator.getOffsetX(); float offsetY = mPtrIndicator.getOffsetY(); if (mDisableWhenHorizontalMove && !mPreventForHorizontal && (Math.abs(offsetX) > mPagingTouchSlop && Math.abs(offsetX) > Math.abs(offsetY))) { if (mPtrIndicator.isInStartPosition()) { mPreventForHorizontal = true; } } if (mPreventForHorizontal) { return dispatchTouchEventSupper(e); } boolean moveDown = offsetY > 0; boolean moveUp = !moveDown; boolean canMoveUp = mPtrIndicator.hasLeftStartPosition(); if (DEBUG) { boolean canMoveDown = mPtrHandler != null && mPtrHandler.checkCanDoRefresh(this, mContent, mHeaderView); PtrCLog.v( LOG_TAG, "ACTION_MOVE: offsetY:%s, currentPos: %s, moveUp: %s, canMoveUp: %s, moveDown: %s: canMoveDown: %s", offsetY, mPtrIndicator.getCurrentPosY(), moveUp, canMoveUp, moveDown, canMoveDown); } // disable move when header not reach top if (moveDown && mPtrHandler != null && !mPtrHandler.checkCanDoRefresh(this, mContent, mHeaderView)) { return dispatchTouchEventSupper(e); } if ((moveUp && canMoveUp) || moveDown) { movePos(offsetY); return true; } } return dispatchTouchEventSupper(e); }