@Override
public boolean isScrollableChildUnscrolled() {
final AbsListView listView = getCurrentListView();
return listView != null
&& (listView.getChildCount() == 0
|| listView.getChildAt(0).getTop() == listView.getPaddingTop());
}
public static void scrollToPosition(
final AbsListView listView,
final SimpleFileListFragment.ScrollPosition pos,
boolean immediate) {
if (listView instanceof ListView) {
listView.setSelectionFromTop(pos.index, pos.top);
} else {
listView.postDelayed(
new Runnable() {
@Override
public void run() {
// Being unable to scroll to exact pixel without ListView
// (or without having a god-awful animation forced)
// we just scroll to the closest item
int index = pos.index;
listView.setSelection(index);
View firstChild = listView.getChildAt(0);
if (firstChild != null && abs(pos.top) > firstChild.getHeight() / 2) {
listView.setSelection(index + 1);
}
}
},
immediate ? 0 : ANIM_START_DELAY);
}
}
/**
* Sets the selected view and optionally announces it through TalkBack.
*
* @param selectedView The {@link View} to set as the current selection.
* @param announce Set to <code>true</code> to announce selection changes.
*/
private void setSelectedView(View selectedView, boolean announce) {
if (mSelectedView == selectedView) {
return;
}
if (mSelectedView != null) {
announceSelectionLost(mSelectedView);
}
if (selectedView != null) {
if (selectedView instanceof AbsListView) {
AbsListView absListView = (AbsListView) selectedView;
View item = absListView.getSelectedView();
if (item != null) {
selectedView = item;
} else {
// We don't want to select list containers, so if there's no
// selected element then we'll just select nothing.
selectedView = null;
}
}
if (selectedView != null && announce) {
announceSelectionGained(selectedView);
}
}
mSelectedView = selectedView;
invalidate();
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
if (currentView == null) return;
NodesAdapter nodesAdapter = new NodesAdapter(getActivity(), nodes, pickedFiles);
if (viewType.equals(THUMBNAILS_VIEW)) nodesAdapter.setThumbnail(true);
currentView.setAdapter(nodesAdapter);
currentView.setOnItemClickListener(
new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// Clicked node object
Node node = (Node) parent.getAdapter().getItem(position);
// If node is dir then open it
if (node.isDir) {
getContract().showNextNode(node);
}
}
});
currentView.setVisibility(View.VISIBLE);
// Form consists of input for name, text with extension and save button
initForm();
}
private static void setListener(
Object injectedSource, Field field, String methodName, Method method) throws Exception {
if (methodName == null || methodName.trim().length() == 0) return;
Object obj = field.get(injectedSource);
switch (method) {
case Click:
if (obj instanceof View) {
((View) obj).setOnClickListener(new EventListener(injectedSource).click(methodName));
}
break;
case ItemClick:
if (obj instanceof AbsListView) {
((AbsListView) obj)
.setOnItemClickListener(new EventListener(injectedSource).itemClick(methodName));
}
break;
case LongClick:
if (obj instanceof View) {
((View) obj)
.setOnLongClickListener(new EventListener(injectedSource).longClick(methodName));
}
break;
case itemLongClick:
if (obj instanceof AbsListView) {
((AbsListView) obj)
.setOnItemLongClickListener(
new EventListener(injectedSource).itemLongClick(methodName));
}
break;
default:
break;
}
}
public static int getScrollY(AbsListView lv) {
View c = lv.getChildAt(0);
if (c == null) {
return 0;
}
int firstVisiblePosition = lv.getFirstVisiblePosition();
int scrollY = -(c.getTop());
// int scrollY = 0;
sListViewItemHeights.put(lv.getFirstVisiblePosition(), c.getHeight());
// if(scrollY>0)
// Log.d("QuickReturnUtils", "getScrollY() : -(c.getTop()) - "+ -(c.getTop()));
// else
// Log.i("QuickReturnUtils", "getScrollY() : -(c.getTop()) - "+ -(c.getTop()));
if (scrollY < 0) scrollY = 0;
for (int i = 0; i < firstVisiblePosition; ++i) {
// Log.d("QuickReturnUtils", "getScrollY() : i - "+i);
// Log.d("QuickReturnUtils", "getScrollY() : sListViewItemHeights.get(i) -
// "+sListViewItemHeights.get(i));
if (sListViewItemHeights.get(i) != null) // (this is a sanity check)
scrollY += sListViewItemHeights.get(i); // add all heights of the views that are gone
}
// Log.d("QuickReturnUtils", "getScrollY() : scrollY - "+scrollY);
return scrollY;
}
public ViewHolderHelper setClickListener(
int viewId, AdapterView.OnItemClickListener listener, Object tag) {
AbsListView absListView = findViewById(viewId);
absListView.setOnItemClickListener(listener);
absListView.setTag(tag);
return this;
}
public DropdownContainer(
Context context,
int layout_id,
Drawable background,
DropdownAdapter adapter,
OnItemClickListener listener) {
super(context);
int m = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
AbsListView content = (AbsListView) LayoutInflater.from(context).inflate(layout_id, null);
if (content instanceof ListView) {
((ListView) content).setAdapter((BaseAdapter) adapter);
} else if (content instanceof GridView) {
((GridView) content).setAdapter((BaseAdapter) adapter);
}
content.setOnItemClickListener(listener);
content.measure(m, m);
if (adapter.getRows() > adapter.getWrapRow()) {
init(
content,
LayoutParams.WRAP_CONTENT,
content.getMeasuredHeight() * adapter.getWrapRow(),
R.style.drop_down_anim,
background);
} else {
init(
content,
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT,
R.style.drop_down_anim,
background);
}
}
public void onScrollStateChanged(AbsListView view, int scrollState) {
switch (scrollState) {
case OnScrollListener.SCROLL_STATE_IDLE:
mBusy = false;
int first = view.getFirstVisiblePosition();
int count = view.getChildCount();
for (int i = 0; i < count; i++) {
TextView t = (TextView) view.getChildAt(i);
if (t.getTag() != null) {
t.setText(mStrings[first + i]);
t.setTag(null);
}
}
mStatus.setText("Idle");
break;
case OnScrollListener.SCROLL_STATE_TOUCH_SCROLL:
mBusy = true;
mStatus.setText("Touch scroll");
break;
case OnScrollListener.SCROLL_STATE_FLING:
mBusy = true;
mStatus.setText("Fling");
break;
}
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_item, container, false);
// Set the adapter
if (mAdapter != null) {
if (isNewData()) {
createNewAdapter();
}
mListView = (AbsListView) view.findViewById(android.R.id.list);
mListView.setAdapter(mAdapter);
// Set OnItemClickListener so we can be notified on item clicks
mListView.setOnItemClickListener(this);
} else {
TextView noRestaurantView = (TextView) view.findViewById(R.id.noRestaurantView);
noRestaurantView.setText("There aren't any restaurants.");
}
FloatingActionButton addRestaurantButton =
(FloatingActionButton) view.findViewById(R.id.addRestaurant);
addRestaurantButton.setOnClickListener(this);
mListener = (OnFragmentInteractionListener) getActivity();
return view;
}
/**
* 设置view的监听器.
*
* @param field the field
* @param methodName the method name
* @param method the method
* @throws Exception the exception
*/
private void setListener(Field field, String methodName, int method) throws Exception {
if (methodName == null || methodName.trim().length() == 0) return;
Object obj = field.get(this);
switch (method) {
case AbIocEventListener.CLICK:
if (obj instanceof View) {
((View) obj).setOnClickListener(new AbIocEventListener(this).click(methodName));
}
break;
case AbIocEventListener.ITEMCLICK:
if (obj instanceof AbsListView) {
((AbsListView) obj)
.setOnItemClickListener(new AbIocEventListener(this).itemClick(methodName));
}
break;
case AbIocEventListener.LONGCLICK:
if (obj instanceof View) {
((View) obj).setOnLongClickListener(new AbIocEventListener(this).longClick(methodName));
}
break;
case AbIocEventListener.ITEMLONGCLICK:
if (obj instanceof AbsListView) {
((AbsListView) obj)
.setOnItemLongClickListener(new AbIocEventListener(this).itemLongClick(methodName));
}
break;
default:
break;
}
}
/** @see AbsListView.OnScrollListener#onScroll */
@Override
public final void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
boolean shouldAnimateItems = (mFirstVisibleItem != -1 && mLastVisibleItem != -1);
int lastVisibleItem = firstVisibleItem + visibleItemCount - 1;
if (mIsScrolling && shouldAnimateItems) {
setVelocity(firstVisibleItem, totalItemCount);
int indexAfterFirst = 0;
while (firstVisibleItem + indexAfterFirst < mFirstVisibleItem) {
View item = view.getChildAt(indexAfterFirst);
doJazziness(item, firstVisibleItem + indexAfterFirst, -1);
indexAfterFirst++;
}
int indexBeforeLast = 0;
while (lastVisibleItem - indexBeforeLast > mLastVisibleItem) {
View item = view.getChildAt(lastVisibleItem - firstVisibleItem - indexBeforeLast);
doJazziness(item, lastVisibleItem - indexBeforeLast, 1);
indexBeforeLast++;
}
} else if (!shouldAnimateItems) {
for (int i = firstVisibleItem; i < visibleItemCount; i++) {
mAlreadyAnimatedItems.add(i);
}
}
mFirstVisibleItem = firstVisibleItem;
mLastVisibleItem = lastVisibleItem;
notifyAdditionalOnScrollListener(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
// Log.d(TAG, "loading: "+ Boolean.toString(loading) +"totalItemCount: "+totalItemCount+
// "visibleItemCount: " +visibleItemCount+"firstVisibleItem: "+firstVisibleItem+
// "visibleThreshold: "+visibleThreshold);
if (adapter.buffer != null
&& !adapter.buffer.hasPendingBacklog()
&& (firstVisibleItem <= visibleThreshold)) {
adapter.getMoreBacklog();
}
// This nasty little hack is required for emulating ListView.TRANSCRIPT_MODE_NORMAL
// functionality on GB
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.GINGERBREAD_MR1) {
if (visibleItemCount == 0
|| visibleItemCount == totalItemCount
|| firstVisibleItem + visibleItemCount == totalItemCount) {
if (view.getTranscriptMode() != AbsListView.TRANSCRIPT_MODE_ALWAYS_SCROLL) {
view.setTranscriptMode(AbsListView.TRANSCRIPT_MODE_ALWAYS_SCROLL);
}
} else {
if (view.getTranscriptMode() != AbsListView.TRANSCRIPT_MODE_DISABLED) {
view.setTranscriptMode(AbsListView.TRANSCRIPT_MODE_DISABLED);
}
}
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {
// 判断是否滚动到底部
if (view.getLastVisiblePosition() == view.getCount() - 1) {
getResource();
}
}
}
/**
* 是否列表处于顶部 第一项也显示完全
*
* @param listView
* @return
*/
public static boolean isListViewInTop(AbsListView listView) {
if (null == listView) return true;
View firstVisibleItemView = listView.getChildAt(0);
if (null == firstVisibleItemView) {
return true;
}
return listView.getFirstVisiblePosition() == 0 && firstVisibleItemView.getTop() == 0;
}
/**
* Sets up various helpers for both the list and grid
*
* @param list The list or grid
*/
private void initAbsListView(final AbsListView list) {
// Release any references to the recycled Views
list.setRecyclerListener(new RecycleHolder());
// Listen for ContextMenus to be created
list.setOnCreateContextMenuListener(this);
// Show the albums and songs from the selected artist
list.setOnItemClickListener(this);
// To help make scrolling smooth
list.setOnScrollListener(this);
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (scrollState == SCROLL_STATE_IDLE
&& view.getLastVisiblePosition() >= view.getCount() - THRESHOLD
&& !mLoding) {
mLoding = true;
loadPhotos();
}
}
@Override
public void onScrollStateChanged(AbsListView listView, int scrollState) {
if (scrollState == SCROLL_STATE_IDLE) {
// load 3 (4-1) items before we reach the end of the list
if (listView.getLastVisiblePosition() >= listView.getCount() - 4) {
currentPage++;
getLoaderManager().restartLoader(0, null, this);
}
}
}
public KJAdapter(AbsListView view, Collection<T> mDatas, int itemLayoutId) {
this.mInflater = LayoutInflater.from(view.getContext());
if (mDatas == null) {
mDatas = new ArrayList<T>(0);
}
this.mDatas = mDatas;
this.mItemLayoutId = itemLayoutId;
this.mList = view;
mList.setOnScrollListener(this);
}
@Override
public boolean isScrolledToTop(View view) {
AbsListView absListView = (AbsListView) view;
if (absListView.getCount() == 0) {
return true;
} else if (absListView.getFirstVisiblePosition() == 0) {
final View firstVisibleChild = absListView.getChildAt(0);
return firstVisibleChild != null && firstVisibleChild.getTop() >= 0;
}
return false;
}
@Override
public void setAbsListView(AbsListView listView) {
super.setAbsListView(listView);
mContextualUndoListViewTouchListener = new ContextualUndoListViewTouchListener(listView, this);
mContextualUndoListViewTouchListener.setIsParentHorizontalScrollContainer(
isParentHorizontalScrollContainer());
mContextualUndoListViewTouchListener.setTouchChild(getTouchChild());
listView.setOnTouchListener(mContextualUndoListViewTouchListener);
listView.setOnScrollListener(mContextualUndoListViewTouchListener.makeScrollListener());
listView.setRecyclerListener(new RecycleViewListener());
}
public static int getScrollY(AbsListView lv) {
View c = lv.getChildAt(0);
if (c == null) {
return 0;
}
int firstVisiblePosition = lv.getFirstVisiblePosition();
int top = c.getTop();
int scrollY = -top + firstVisiblePosition * c.getHeight();
return scrollY;
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
mFirstVisibleItem = firstVisibleItem;
if (view.getFirstVisiblePosition() == 1) {
mIsTop = true;
} else if (view.getLastVisiblePosition() == view.getCount() - 1) {
mIsBottom = true;
} else {
mIsTop = false;
mIsBottom = false;
}
}
protected void whichShow(int size) {
if (size > 0) {
base_listview_zero_bg.setVisibility(View.GONE);
absListView.setVisibility(View.VISIBLE);
} else {
base_zero_button.setText(zero_button_hint);
base_zero_imageview.setImageResource(zero_imageview_hint);
base_zero_textview.setText(zero_text_hint);
base_listview_zero_bg.setVisibility(View.VISIBLE);
absListView.setVisibility(View.INVISIBLE);
}
}
/** 重新获取嵌套的内容视图 */
private void regetNestedContentView() {
int currentItem = mDirectViewPager.getCurrentItem();
PagerAdapter adapter = mDirectViewPager.getAdapter();
if (adapter instanceof FragmentPagerAdapter || adapter instanceof FragmentStatePagerAdapter) {
Fragment item = (Fragment) adapter.instantiateItem(mDirectViewPager, currentItem);
mNestedContentView = item.getView();
// 清空之前的
mNestedNormalView = null;
mNestedAbsListView = null;
mNestedRecyclerView = null;
mNestedScrollView = null;
mNestedWebView = null;
if (mNestedContentView instanceof AbsListView) {
mNestedAbsListView = (AbsListView) mNestedContentView;
mNestedAbsListView.setOnScrollListener(mLvOnScrollListener);
if (!isHeaderViewCompleteInvisible()) {
mNestedAbsListView.setSelection(0);
}
} else if (mNestedContentView instanceof RecyclerView) {
mNestedRecyclerView = (RecyclerView) mNestedContentView;
mNestedRecyclerView.removeOnScrollListener(mRvOnScrollListener);
mNestedRecyclerView.addOnScrollListener(mRvOnScrollListener);
if (!isHeaderViewCompleteInvisible()) {
mNestedRecyclerView.scrollToPosition(0);
}
} else if (mNestedContentView instanceof ScrollView) {
mNestedScrollView = (ScrollView) mNestedContentView;
if (!isHeaderViewCompleteInvisible()) {
mNestedScrollView.scrollTo(mNestedScrollView.getScrollX(), 0);
}
} else if (mNestedContentView instanceof WebView) {
mNestedWebView = (WebView) mNestedContentView;
if (!isHeaderViewCompleteInvisible()) {
mNestedWebView.scrollTo(mNestedWebView.getScrollX(), 0);
}
} else {
mNestedNormalView = mNestedContentView;
}
} else {
throw new IllegalStateException(
BGAStickyNavLayout.class.getSimpleName()
+ "的第三个子控件为ViewPager时，其adapter必须是FragmentPagerAdapter或者FragmentStatePagerAdapter");
}
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_usercontent, container, false);
// Set the adapter
mListView = (AbsListView) view.findViewById(android.R.id.list);
mListView.setAdapter(mAdapter);
// Set OnItemClickListener so we can be notified on item clicks
mListView.setOnItemClickListener(this);
return view;
}
public boolean canChildScrollUp() {
if (Build.VERSION.SDK_INT < 14) {
if ((this.mTarget instanceof AbsListView)) {
AbsListView absListView = (AbsListView) this.mTarget;
return (absListView.getChildCount() > 0)
&& ((absListView.getFirstVisiblePosition() > 0)
|| (absListView.getChildAt(0).getTop() < absListView.getPaddingTop()));
}
return (ViewCompat.canScrollVertically(this.mTarget, -1)) || (this.mTarget.getScrollY() > 0);
}
return ViewCompat.canScrollVertically(this.mTarget, -1);
}
/**
* @return Whether it is possible for the child view of this layout to scroll up. Override this if
* the child view is a custom view.
*/
public boolean canChildScrollUp() {
if (android.os.Build.VERSION.SDK_INT < 14) {
if (mTarget instanceof AbsListView) {
final AbsListView absListView = (AbsListView) mTarget;
return absListView.getChildCount() > 0
&& (absListView.getFirstVisiblePosition() > 0
|| absListView.getChildAt(0).getTop() < absListView.getPaddingTop());
} else {
return mTarget.getScrollY() > 0;
}
} else {
return ViewCompat.canScrollVertically(mTarget, -1);
}
}
public static boolean canChildScrollUp(View view) {
if (android.os.Build.VERSION.SDK_INT < 14) {
if (view instanceof AbsListView) {
final AbsListView absListView = (AbsListView) view;
return absListView.getChildCount() > 0
&& (absListView.getFirstVisiblePosition() > 0
|| absListView.getChildAt(0).getTop() < absListView.getPaddingTop());
} else {
return view.getScrollY() > 0;
}
} else {
return view.canScrollVertically(-1);
}
}
private void checkAbsListView(Context context, AttributeSet attrs, View view) {
if (view instanceof AbsListView) {
AbsListView listView = (AbsListView) view;
final TypedValue value = new TypedValue();
TypedArray array =
context.obtainStyledAttributes(attrs, com.android.internal.R.styleable.AbsListView, 0, 0);
array.getValue(com.android.internal.R.styleable.AbsListView_listSelector, value);
EnvRes listSelectorRes = new EnvRes(value.resourceId);
if (listSelectorRes.isValid()) {
listView.setSelector(context.getResources().getDrawable(listSelectorRes.getResid()));
}
array.recycle();
}
}
