/** If at the top and not in loading, reset */
private boolean tryToNotifyReset() {
if ((mStatus == PTR_STATUS_COMPLETE || mStatus == PTR_STATUS_PREPARE)
&& mPtrIndicator.isInStartPosition()) {
if (mPtrUIHandlerHolder.hasHandler()) {
mPtrUIHandlerHolder.onUIReset(this);
if (DEBUG) {
PtrCLog.i(LOG_TAG, "PtrUIHandler: onUIReset");
}
}
mStatus = PTR_STATUS_INIT;
clearFlag();
return true;
}
return false;
}
/**
* if deltaY > 0, move the content down
*
* @param deltaY
*/
private void movePos(float deltaY) {
// has reached the top
if ((deltaY < 0 && mPtrIndicator.isInStartPosition())) {
if (DEBUG) {
PtrCLog.e(LOG_TAG, String.format("has reached the top"));
}
return;
}
int to = mPtrIndicator.getCurrentPosY() + (int) deltaY;
// over top
if (mPtrIndicator.willOverTop(to)) {
if (DEBUG) {
PtrCLog.e(LOG_TAG, String.format("over top"));
}
to = PtrIndicator.POS_START;
}
mPtrIndicator.setCurrentPos(to);
int change = to - mPtrIndicator.getLastPosY();
updatePos(change);
}
@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);
}