Examples with HeaderListView org.qii.weiciyuan.support.lib.HeaderListView used on opensource projects

Example 1 with HeaderListView

use of org.qii.weiciyuan.support.lib.HeaderListView in project weiciyuan by qii.

the class Utility method getListViewFirstAdapterItemView.

public static View getListViewFirstAdapterItemView(ListView listView) {
    if (listView instanceof HeaderListView) {
        HeaderListView headerListView = (HeaderListView) listView;
        int childCount = headerListView.getChildCount();
        for (int i = 0; i < childCount; i++) {
            View childView = headerListView.getChildAt(i);
            if (!headerListView.isThisViewHeader(childView)) {
                return childView;
            }
        }
        //fallback to first view
        AppLogger.v("all listview children are header view");
        return headerListView.getChildAt(0);
    }
    return listView.getChildAt(0);
}

Example 2 with HeaderListView

use of org.qii.weiciyuan.support.lib.HeaderListView in project weiciyuan by qii.

the class FriendsTimeLineFragment method addNewDataAndRememberPositionAutoRefresh.

private void addNewDataAndRememberPositionAutoRefresh(final MessageListBean newValue) {
    int initSize = getList().getSize();
    if (getActivity() != null && newValue.getSize() > 0) {
        if (hasActionMode()) {
            AppLogger.v("ListView have ActionMode, skip notifyDataSetChanged");
            return;
        }
        final HeaderListView headerListView = (HeaderListView) getListView();
        View firstChildView = getListView().getChildAt(0);
        boolean isFirstViewHeader = headerListView.isThisViewHeader(firstChildView);
        if (isFirstViewHeader && !headerListView.isInTouchByUser()) {
            //                //Overlay is Android 4.3 method
            if (!Utility.isJB2()) {
                getList().addNewData(newValue);
                getAdapter().notifyDataSetChanged();
                Utility.setListViewItemPosition(getListView(), 0, 0, null);
                return;
            }
            //animate add item
            final ListView listView = getListView();
            final ArrayList<Pair<Long, Bitmap>> previousViewsBitmap = new ArrayList<Pair<Long, Bitmap>>();
            final HashMap<Long, Integer> previousViewsTop = new HashMap<Long, Integer>();
            final HashMap<Long, View> previousViews = new HashMap<Long, View>();
            int childCount = listView.getChildCount();
            for (int i = 0; i < childCount; i++) {
                View childView = listView.getChildAt(i);
                if (headerListView.isThisViewHeader(childView)) {
                    continue;
                }
                int firstAdapterItemPosition = listView.getFirstVisiblePosition();
                int currentAdapterItemPosition = firstAdapterItemPosition + i - listView.getHeaderViewsCount();
                long currentAdapterItemId = getAdapter().getItemId(currentAdapterItemPosition);
                int childViewTop = childView.getTop();
                Bitmap bitmap = Utility.getBitmapFromView(childView);
                Pair<Long, Bitmap> pair = new Pair<Long, Bitmap>(currentAdapterItemId, bitmap);
                previousViewsBitmap.add(pair);
                previousViewsTop.put(currentAdapterItemId, childViewTop);
                childView.setHasTransientState(true);
                previousViews.put(currentAdapterItemId, childView);
            }
            getList().addNewData(newValue);
            getAdapter().notifyDataSetChanged();
            getListView().getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {

                @Override
                public boolean onPreDraw() {
                    listView.getViewTreeObserver().removeOnPreDrawListener(this);
                    DecelerateInterpolator decelerateInterpolator = new DecelerateInterpolator();
                    final ViewGroupOverlay overlay = listView.getOverlay();
                    Set<Long> previousViewsId = previousViews.keySet();
                    boolean somePreviousViewsAreStillInScreen = false;
                    ArrayList<View> newAddedItemViews = new ArrayList<View>();
                    int deltaY = 0;
                    int childCount = listView.getChildCount();
                    for (int i = 0; i < childCount; i++) {
                        View childView = listView.getChildAt(i);
                        if (headerListView.isThisViewHeader(childView)) {
                            continue;
                        }
                        int firstAdapterItemPosition = listView.getFirstVisiblePosition();
                        int currentAdapterItemPosition = firstAdapterItemPosition + i - listView.getHeaderViewsCount();
                        long currentAdapterItemId = getAdapter().getItemId(currentAdapterItemPosition);
                        if (previousViewsId.contains(currentAdapterItemId)) {
                            somePreviousViewsAreStillInScreen = true;
                            deltaY = childView.getTop() - previousViewsTop.get(currentAdapterItemId);
                        } else {
                            newAddedItemViews.add(childView);
                        }
                    }
                    if (!somePreviousViewsAreStillInScreen) {
                        deltaY = listView.getHeight();
                    }
                    for (View view : newAddedItemViews) {
                        view.setTranslationY(-deltaY);
                        view.animate().translationY(0).setInterpolator(decelerateInterpolator);
                    }
                    for (Pair<Long, Bitmap> pair : previousViewsBitmap) {
                        long id = pair.first;
                        int top = previousViewsTop.get(id);
                        final View view = previousViews.get(id);
                        final Bitmap bitmap = pair.second;
                        final ImageView imageView = new ImageView(getActivity());
                        imageView.setImageBitmap(bitmap);
                        imageView.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
                        imageView.layout(0, 0, imageView.getMeasuredWidth(), imageView.getMeasuredHeight());
                        overlay.add(imageView);
                        imageView.setTranslationY(top);
                        view.setAlpha(0);
                        imageView.animate().translationY(top + deltaY).setInterpolator(decelerateInterpolator).withEndAction(new Runnable() {

                            @Override
                            public void run() {
                                overlay.remove(imageView);
                                bitmap.recycle();
                                view.setAlpha(1.0f);
                                view.setHasTransientState(false);
                            }
                        });
                    }
                    return true;
                }
            });
            return;
        }
        getList().addNewData(newValue);
        Runnable endAction = new Runnable() {

            @Override
            public void run() {
                newMsgTipBar.setValue(newValue, false);
                newMsgTipBar.setType(TopTipBar.Type.ALWAYS);
            }
        };
        //keep current read position when user touch listview
        if (isFirstViewHeader && headerListView.isInTouchByUser()) {
            int index = getListView().getFirstVisiblePosition();
            getAdapter().notifyDataSetChanged();
            int finalSize = getList().getSize();
            final int positionAfterRefresh = index + finalSize - initSize + getListView().getHeaderViewsCount();
            //use 1 px to show newMsgTipBar
            Utility.setListViewItemPosition(getListView(), positionAfterRefresh, 1, endAction);
            return;
        }
        //need to calc the first child view's top distance
        int index = getListView().getFirstVisiblePosition();
        View firstAdapterItemView = Utility.getListViewFirstAdapterItemView(getListView());
        final int top = (firstAdapterItemView == null) ? 0 : firstAdapterItemView.getTop();
        getAdapter().notifyDataSetChanged();
        int finalSize = getList().getSize();
        final int positionAfterRefresh = index + finalSize - initSize;
        Utility.setListViewItemPosition(getListView(), positionAfterRefresh, top, endAction);
    }
}