Examples with ViewTreeObserver android.view.ViewTreeObserver used on opensource projects

Example 6 with ViewTreeObserver

use of android.view.ViewTreeObserver in project cw-omnibus by commonsguy.

the class ActivityChooserView method dismissPopup.

/**
     * Dismisses the popup window with activities.
     *
     * @return True if dismissed, false if already dismissed.
     */
public boolean dismissPopup() {
    if (isShowingPopup()) {
        getListPopupWindow().dismiss();
        ViewTreeObserver viewTreeObserver = getViewTreeObserver();
        if (viewTreeObserver.isAlive()) {
            viewTreeObserver.removeGlobalOnLayoutListener(mOnGlobalLayoutListener);
        }
    }
    return true;
}

Example 7 with ViewTreeObserver

use of android.view.ViewTreeObserver in project PhotoPicker by donglua.

the class ImagePagerFragment method onCreateView.

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.__picker_picker_fragment_image_pager, container, false);
    mViewPager = (ViewPager) rootView.findViewById(R.id.vp_photos);
    mViewPager.setAdapter(mPagerAdapter);
    mViewPager.setCurrentItem(currentItem);
    mViewPager.setOffscreenPageLimit(5);
    // we're recreated automatically by the window manager (e.g., device rotation)
    if (savedInstanceState == null && hasAnim) {
        ViewTreeObserver observer = mViewPager.getViewTreeObserver();
        observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {

            @Override
            public boolean onPreDraw() {
                mViewPager.getViewTreeObserver().removeOnPreDrawListener(this);
                // Figure out where the thumbnail and full size versions are, relative
                // to the screen and each other
                int[] screenLocation = new int[2];
                mViewPager.getLocationOnScreen(screenLocation);
                thumbnailLeft = thumbnailLeft - screenLocation[0];
                thumbnailTop = thumbnailTop - screenLocation[1];
                runEnterAnimation();
                return true;
            }
        });
    }
    mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {

        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
        }

        @Override
        public void onPageSelected(int position) {
            hasAnim = currentItem == position;
        }

        @Override
        public void onPageScrollStateChanged(int state) {
        }
    });
    return rootView;
}

Example 8 with ViewTreeObserver

use of android.view.ViewTreeObserver in project Android-ShareEverywhere by dgmltn.

the class ShareView method onDetachedFromWindow.

@Override
protected void onDetachedFromWindow() {
    super.onDetachedFromWindow();
    ActivityChooserModel dataModel = mAdapter.getDataModel();
    if (dataModel != null) {
        try {
            dataModel.unregisterObserver(mModelDataSetObserver);
        } catch (IllegalStateException e) {
        //Oh, well... fixes issue #557
        }
    }
    ViewTreeObserver viewTreeObserver = getViewTreeObserver();
    if (viewTreeObserver.isAlive()) {
        viewTreeObserver.removeGlobalOnLayoutListener(mOnGlobalLayoutListener);
    }
    mIsAttachedToWindow = false;
}

Example 9 with ViewTreeObserver

use of android.view.ViewTreeObserver in project Android-ShareEverywhere by dgmltn.

the class ShareView method dismissPopup.

/**
	 * Dismisses the popup window with activities.
	 *
	 * @return True if dismissed, false if already dismissed.
	 */
public boolean dismissPopup() {
    if (isShowingPopup()) {
        getListPopupWindow().dismiss();
        ViewTreeObserver viewTreeObserver = getViewTreeObserver();
        if (viewTreeObserver.isAlive()) {
            viewTreeObserver.removeGlobalOnLayoutListener(mOnGlobalLayoutListener);
        }
    }
    return true;
}

Example 10 with ViewTreeObserver

use of android.view.ViewTreeObserver in project UltimateAndroid by cymcsg.

the class DynamicListView method handleCellSwitch.

/**
     * This method determines whether the hover cell has been shifted far enough
     * to invoke a cell swap. If so, then the respective cell swap candidate is
     * determined and the data set is changed. Upon posting a notification of the
     * data set change, a layout is invoked to place the cells in the right place.
     * Using a ViewTreeObserver and a corresponding OnPreDrawListener, we can
     * offset the cell being swapped to where it previously was and then animate it to
     * its new position.
     */
private void handleCellSwitch() {
    final int deltaY = mLastEventY - mDownY;
    int deltaYTotal = mHoverCellOriginalBounds.top + mTotalOffset + deltaY;
    View belowView = getViewForId(mBelowItemId);
    View mobileView = getViewForId(mMobileItemId);
    View aboveView = getViewForId(mAboveItemId);
    boolean isBelow = (belowView != null) && (deltaYTotal > belowView.getTop());
    boolean isAbove = (aboveView != null) && (deltaYTotal < aboveView.getTop());
    if (isBelow || isAbove) {
        final long switchItemId = isBelow ? mBelowItemId : mAboveItemId;
        View switchView = isBelow ? belowView : aboveView;
        final int originalItem = getPositionForView(mobileView);
        if (switchView == null) {
            updateNeighborViewsForId(mMobileItemId);
            return;
        }
        if (getPositionForView(switchView) < getHeaderViewsCount()) {
            return;
        }
        swapElements(originalItem, getPositionForView(switchView));
        BaseAdapter adapter;
        if (getAdapter() instanceof HeaderViewListAdapter) {
            adapter = (BaseAdapter) ((HeaderViewListAdapter) getAdapter()).getWrappedAdapter();
        } else {
            adapter = (BaseAdapter) getAdapter();
        }
        adapter.notifyDataSetChanged();
        mDownY = mLastEventY;
        mDownX = mLastEventX;
        final int switchViewStartTop = switchView.getTop();
        mobileView.setVisibility(View.VISIBLE);
        switchView.setVisibility(View.INVISIBLE);
        updateNeighborViewsForId(mMobileItemId);
        final ViewTreeObserver observer = getViewTreeObserver();
        observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {

            public boolean onPreDraw() {
                observer.removeOnPreDrawListener(this);
                View switchView = getViewForId(switchItemId);
                mTotalOffset += deltaY;
                int switchViewNewTop = switchView.getTop();
                int delta = switchViewStartTop - switchViewNewTop;
                ViewHelper.setTranslationY(switchView, delta);
                ObjectAnimator animator = ObjectAnimator.ofFloat(switchView, "translationY", 0);
                animator.setDuration(MOVE_DURATION);
                animator.start();
                return true;
            }
        });
    }
}