/**
* 松开的时候
*
* @param move
*/
private void actionUp(int move) {
int newMove = 0;
if (move > 0) {
for (int i = 0; i < itemList.size(); i++) {
if (itemList.get(i).isSelected()) {
newMove = (int) itemList.get(i).moveToSelected();
if (onSelectListener != null)
onSelectListener.endSelect(itemList.get(i).id, itemList.get(i).itemText);
break;
}
}
} else {
for (int i = itemList.size() - 1; i >= 0; i--) {
if (itemList.get(i).isSelected()) {
newMove = (int) itemList.get(i).moveToSelected();
if (onSelectListener != null)
onSelectListener.endSelect(itemList.get(i).id, itemList.get(i).itemText);
break;
}
}
}
for (ItemObject item : itemList) {
item.newY(move + 0);
}
slowMove(newMove);
Message rMessage = new Message();
rMessage.what = REFRESH_VIEW;
handler.sendMessage(rMessage);
}
private void doSelect(TagView child, int position) {
if (mAutoSelectEffect) {
if (!child.isChecked()) {
// 处理max_select=1的情况
if (mSelectedMax == 1 && mSelectedView.size() == 1) {
Iterator<Integer> iterator = mSelectedView.iterator();
Integer preIndex = iterator.next();
TagView pre = (TagView) getChildAt(preIndex);
pre.setChecked(false);
child.setChecked(true);
mSelectedView.remove(preIndex);
mSelectedView.add(position);
} else {
if (mSelectedMax > 0 && mSelectedView.size() >= mSelectedMax) return;
child.setChecked(true);
mSelectedView.add(position);
}
} else {
child.setChecked(false);
mSelectedView.remove(position);
}
if (mOnSelectListener != null) {
mOnSelectListener.onSelected(new HashSet<Integer>(mSelectedView));
}
}
}
/** 滑动监听 */
private void onSelectListener() {
if (onSelectListener == null) return;
for (ItemObject item : itemList) {
if (item.isSelected()) {
onSelectListener.selecting(item.id, item.itemText);
}
}
}
/** 不能为空，必须有选项 */
private void noEmpty() {
if (!noEmpty) return;
for (ItemObject item : itemList) {
if (item.isSelected()) return;
}
int move = (int) itemList.get(0).moveToSelected();
if (move < 0) {
defaultMove(move);
} else {
defaultMove((int) itemList.get(itemList.size() - 1).moveToSelected());
}
for (ItemObject item : itemList) {
if (item.isSelected()) {
if (onSelectListener != null) onSelectListener.endSelect(item.id, item.itemText);
break;
}
}
}
private void performSelect(int position) {
if (mSelectListener != null) mSelectListener.onSelect(position);
}
/**
* Updates scrolling, creates views if necessary .
*
* @param layout whether we need to update layout (remeasure).
*/
private void update(boolean layout) {
// Process data change.
final int count = getCount();
if (dataChanged) {
if (previousSelectedObject != null)
for (int position = 0; position < count; position++)
if (adapter.getItem(position).equals(previousSelectedObject)) {
selectedPosition = position;
if (LOG) LogManager.i(this, "Found selected position: " + selectedPosition);
break;
}
selectedPosition = correntPosition(selectedPosition);
}
// Process scrolling.
final int width = getWidth();
int scrollX = getScrollX();
if (width != 0) {
while (scrollX >= width) {
scrollX -= width;
initialScrollX -= width;
selectedPosition = correntPosition(selectedPosition + 1);
if (LOG) LogManager.i(this, "scrollX >= width: " + selectedPosition);
}
while (scrollX <= -width) {
scrollX += width;
initialScrollX += width;
selectedPosition = correntPosition(selectedPosition - 1);
if (LOG) LogManager.i(this, "scrollX <= -width: " + selectedPosition);
}
}
// Process low count.
if (count < 2) {
if (LOG) LogManager.i(this, "count < 2");
dragWasCanceled = true;
isBeingDragged = false;
if (!scroller.isFinished()) scroller.abortAnimation();
if (scrollX != 0) scrollX = 0;
}
// Store focus.
final View focus;
if (selectedView != null) focus = selectedView.findFocus();
else focus = null;
// Process selected view.
if (count == 0) {
if (LOG) LogManager.i(this, "count == 0");
selectedPosition = -1;
if (selectedView != null) {
if (onSelectListener != null) onSelectListener.onUnselect();
adapter.saveState(selectedView);
removeViewInLayout(selectedView);
selectedView = null;
// We must invalidate to update view.
invalidate();
}
} else {
if (LOG) LogManager.i(this, "count > 0");
// Exchange visible and selected views and previous objects.
final Object selectedObject = adapter.getItem(selectedPosition);
final boolean exchange =
previousSelectedObject != null
&& previousVisibleObject != null
&& !previousSelectedObject.equals(selectedObject)
&& previousVisibleObject.equals(selectedObject);
if (exchange) {
Object tempObject = previousSelectedObject;
previousSelectedObject = previousVisibleObject;
previousVisibleObject = tempObject;
View view = selectedView;
selectedView = visibleView;
visibleView = view;
}
// Update view.
final boolean update =
dataChanged
|| previousSelectedObject == null
|| !previousSelectedObject.equals(selectedObject);
selectedView = getView(selectedPosition, 0, selectedView, update, layout);
previousSelectedObject = selectedObject;
if (update || exchange) if (onSelectListener != null) onSelectListener.onSelect();
// Enable focusable.
if (selectedView instanceof ViewGroup)
((ViewGroup) selectedView).setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
else selectedView.setFocusable(true);
}
// Process visible (not selected) view.
if (count < 2) {
if (LOG) LogManager.i(this, "count < 2 || scrollX == 0");
visiblePosition = -1;
if (visibleView != null) {
adapter.saveState(visibleView);
removeViewInLayout(visibleView);
visibleView = null;
}
} else {
// Calculate position.
final int visibleX;
if (scrollX > 0) {
if (LOG) LogManager.i(this, "scrollX > 0");
visiblePosition = correntPosition(selectedPosition + 1);
visibleX = width;
} else {
if (LOG) LogManager.i(this, "scrollX < 0");
visiblePosition = correntPosition(selectedPosition - 1);
visibleX = -width;
}
// Update view.
final Object visibleObject = adapter.getItem(visiblePosition);
final boolean update =
dataChanged
|| previousVisibleObject == null
|| !previousVisibleObject.equals(visibleObject);
visibleView = getView(visiblePosition, visibleX, visibleView, update, layout);
previousVisibleObject = visibleObject;
// Disable focusable.
if (visibleView instanceof ViewGroup)
((ViewGroup) visibleView).setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
else visibleView.setFocusable(false);
}
// Restore focus by ID.
if (selectedView != null) {
View target;
if (focus == null || focus.getId() == View.NO_ID) target = null;
else target = selectedView.findViewById(focus.getId());
if (target == null) target = selectedView.findViewById(R.id.chat_input);
target.requestFocus();
}
if (scrollX == 0) {
if (LOG) LogManager.i(this, "Scroll X == 0");
hidePages();
} else {
if (LOG) LogManager.i(this, "Scroll X != 0");
showPages();
}
super.scrollTo(scrollX, 0);
dataChanged = false;
}
