private void sendDownEvent() {
if (DEBUG) {
PtrCLog.d(LOG_TAG, "send down event");
}
final MotionEvent last = mLastMoveEvent;
MotionEvent e =
MotionEvent.obtain(
last.getDownTime(),
last.getEventTime(),
MotionEvent.ACTION_DOWN,
last.getX(),
last.getY(),
last.getMetaState());
dispatchTouchEventSupper(e);
}
private void sendCancelEvent() {
if (DEBUG) {
PtrCLog.d(LOG_TAG, "send cancel event");
}
// The ScrollChecker will update position and lead to send cancel event when mLastMoveEvent is
// null.
// fix #104, #80, #92
if (mLastMoveEvent == null) {
return;
}
MotionEvent last = mLastMoveEvent;
MotionEvent e =
MotionEvent.obtain(
last.getDownTime(),
last.getEventTime() + ViewConfiguration.getLongPressTimeout(),
MotionEvent.ACTION_CANCEL,
last.getX(),
last.getY(),
last.getMetaState());
dispatchTouchEventSupper(e);
}
@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);
}