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

Example 1 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project KJFrameForAndroid by kymjs.

the class KJDragGridView method onSwapItem.

/**
     * 交换item,并且控制item之间的显示与隐藏效果
     * 
     * @param moveX
     * @param moveY
     */
private void onSwapItem(int moveX, int moveY) {
    // 获取我们手指移动到的那个item的position
    final int tempPosition = pointToPosition(moveX, moveY);
    if (tempPosition != mDragPosition && tempPosition != AdapterView.INVALID_POSITION && mAnimationEnd) {
        mDragAdapter.reorderItems(mDragPosition, tempPosition);
        mDragAdapter.setHideItem(tempPosition);
        final ViewTreeObserver observer = getViewTreeObserver();
        observer.addOnPreDrawListener(new OnPreDrawListener() {

            @Override
            public boolean onPreDraw() {
                observer.removeOnPreDrawListener(this);
                animateReorder(mDragPosition, tempPosition);
                mDragPosition = tempPosition;
                return true;
            }
        });
    }
}

Example 2 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project android-tooltips by rharter.

the class ToolTipLayout method addTooltip.

public void addTooltip(ToolTip tooltip, boolean animate) {
    mToolTips.add(tooltip);
    View v = tooltip.getView();
    if (tooltip.isDismissOnTouch()) {
        v.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                dismiss();
            }
        });
    }
    addView(v);
    requestLayout();
    if (animate) {
        // We use a two pass preDrawListener so we can get the post animation
        // position of the item and then animate it.
        getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

            @Override
            public boolean onPreDraw() {
                if (!mShouldRemoveObserver) {
                    mShouldRemoveObserver = true;
                    mFinalPositions.clear();
                    for (ToolTip t : mToolTips) {
                        float position = 0;
                        if (Gravity.isVertical(t.getGravity())) {
                            position = t.getView().getY();
                        } else {
                            position = t.getView().getX();
                        }
                        mFinalPositions.put(t, position);
                    }
                    return false;
                }
                mShouldRemoveObserver = false;
                getViewTreeObserver().removeOnPreDrawListener(this);
                List<Animator> animators = new ArrayList<>();
                for (ToolTip t : mToolTips) {
                    t.getView().setAlpha(0);
                    animators.add(ObjectAnimator.ofFloat(t.getView(), View.ALPHA, 0, 1));
                // TODO Restore this once I can fix the flicker
                //                        final float finalPosition = mFinalPositions.get(t);
                //                        if ((Gravity.VERTICAL_GRAVITY_MASK & t.getGravity()) == Gravity.TOP) {
                //                            float start = finalPosition - t.getView().getHeight() / 2;
                //                            t.getView().setY(start);
                //
                //                            animators.add(ObjectAnimator
                //                                    .ofFloat(t.getView(), View.TRANSLATION_Y,
                //                                            start,
                //                                            finalPosition));
                //                        } else if ((Gravity.VERTICAL_GRAVITY_MASK & t.getGravity())
                //                                == Gravity.BOTTOM) {
                //                            float start = finalPosition + t.getView().getHeight() / 2;
                //                            t.getView().setY(start);
                //
                //                            animators.add(ObjectAnimator
                //                                    .ofFloat(t.getView(), View.TRANSLATION_Y,
                //                                            start,
                //                                            finalPosition));
                //                        } else if ((Gravity.HORIZONTAL_GRAVITY_MASK & t.getGravity())
                //                                == Gravity.LEFT) {
                //                            float start = finalPosition - t.getView().getWidth() / 2;
                //                            t.getView().setX(start);
                //
                //                            animators.add(ObjectAnimator
                //                                    .ofFloat(t.getView(), View.TRANSLATION_X,
                //                                            start,
                //                                            finalPosition));
                //                        } else if ((Gravity.HORIZONTAL_GRAVITY_MASK & t.getGravity())
                //                                == Gravity.RIGHT) {
                //                            float start = finalPosition + t.getView().getWidth() / 2;
                //                            t.getView().setX(start);
                //
                //                            animators.add(ObjectAnimator
                //                                    .ofFloat(t.getView(), View.TRANSLATION_X,
                //                                            start,
                //                                            finalPosition));
                //                        }
                }
                AnimatorSet s = new AnimatorSet();
                s.playTogether(animators);
                s.start();
                return true;
            }
        });
    }
}

Example 3 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project Conductor by bluelinelabs.

the class SharedElementDelayingChangeHandler method prepareForTransition.

@Override
public void prepareForTransition(@NonNull final ViewGroup container, @Nullable View from, @Nullable final View to, @NonNull Transition transition, boolean isPush, @NonNull final OnTransitionPreparedListener onTransitionPreparedListener) {
    if (to != null && to.getParent() == null && waitForTransitionNames.size() > 0) {
        onPreDrawListener = new OnPreDrawListener() {

            boolean addedSubviewListeners;

            @Override
            public boolean onPreDraw() {
                List<View> foundViews = new ArrayList<>();
                for (String transitionName : waitForTransitionNames) {
                    foundViews.add(getViewWithTransitionName(to, transitionName));
                }
                if (!foundViews.contains(null) && !addedSubviewListeners) {
                    addedSubviewListeners = true;
                    for (final View view : foundViews) {
                        view.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

                            @Override
                            public boolean onPreDraw() {
                                view.getViewTreeObserver().removeOnPreDrawListener(this);
                                waitForTransitionNames.remove(view.getTransitionName());
                                ViewGroup parent = (ViewGroup) view.getParent();
                                removedViews.add(new ViewParentPair(view, parent));
                                parent.removeView(view);
                                if (waitForTransitionNames.size() == 0) {
                                    to.getViewTreeObserver().removeOnPreDrawListener(onPreDrawListener);
                                    to.setVisibility(View.INVISIBLE);
                                    onTransitionPreparedListener.onPrepared();
                                }
                                return true;
                            }
                        });
                    }
                }
                return false;
            }
        };
        to.getViewTreeObserver().addOnPreDrawListener(onPreDrawListener);
        container.addView(to);
    } else {
        onTransitionPreparedListener.onPrepared();
    }
}

Example 4 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project Conductor by bluelinelabs.

the class FabTransform method createAnimator.

@Override
public Animator createAnimator(final ViewGroup sceneRoot, final TransitionValues startValues, final TransitionValues endValues) {
    if (startValues == null || endValues == null)
        return null;
    final Rect startBounds = (Rect) startValues.values.get(PROP_BOUNDS);
    final Rect endBounds = (Rect) endValues.values.get(PROP_BOUNDS);
    final boolean fromFab = endBounds.width() > startBounds.width();
    final View view = endValues.view;
    final Rect dialogBounds = fromFab ? endBounds : startBounds;
    final Interpolator fastOutSlowInInterpolator = AnimUtils.getFastOutSlowInInterpolator();
    final long duration = getDuration();
    final long halfDuration = duration / 2;
    final long twoThirdsDuration = duration * 2 / 3;
    if (!fromFab) {
        // Force measure / layout the dialog back to it's original bounds
        view.measure(makeMeasureSpec(startBounds.width(), View.MeasureSpec.EXACTLY), makeMeasureSpec(startBounds.height(), View.MeasureSpec.EXACTLY));
        view.layout(startBounds.left, startBounds.top, startBounds.right, startBounds.bottom);
    }
    final int translationX = startBounds.centerX() - endBounds.centerX();
    final int translationY = startBounds.centerY() - endBounds.centerY();
    if (fromFab) {
        view.setTranslationX(translationX);
        view.setTranslationY(translationY);
    }
    // Add a color overlay to fake appearance of the FAB
    final ColorDrawable fabColor = new ColorDrawable(color);
    fabColor.setBounds(0, 0, dialogBounds.width(), dialogBounds.height());
    if (!fromFab)
        fabColor.setAlpha(0);
    view.getOverlay().add(fabColor);
    // Add an icon overlay again to fake the appearance of the FAB
    final Drawable fabIcon = ContextCompat.getDrawable(sceneRoot.getContext(), icon).mutate();
    final int iconLeft = (dialogBounds.width() - fabIcon.getIntrinsicWidth()) / 2;
    final int iconTop = (dialogBounds.height() - fabIcon.getIntrinsicHeight()) / 2;
    fabIcon.setBounds(iconLeft, iconTop, iconLeft + fabIcon.getIntrinsicWidth(), iconTop + fabIcon.getIntrinsicHeight());
    if (!fromFab)
        fabIcon.setAlpha(0);
    view.getOverlay().add(fabIcon);
    // Since the view that's being transition to always seems to be on the top (z-order), we have
    // to make a copy of the "from" view and put it in the "to" view's overlay, then fade it out.
    // There has to be another way to do this, right?
    Drawable dialogView = null;
    if (!fromFab) {
        startValues.view.setDrawingCacheEnabled(true);
        startValues.view.buildDrawingCache();
        Bitmap viewBitmap = startValues.view.getDrawingCache();
        dialogView = new BitmapDrawable(view.getResources(), viewBitmap);
        dialogView.setBounds(0, 0, dialogBounds.width(), dialogBounds.height());
        view.getOverlay().add(dialogView);
    }
    // Circular clip from/to the FAB size
    final Animator circularReveal;
    if (fromFab) {
        circularReveal = ViewAnimationUtils.createCircularReveal(view, view.getWidth() / 2, view.getHeight() / 2, startBounds.width() / 2, (float) Math.hypot(endBounds.width() / 2, endBounds.height() / 2));
        circularReveal.setInterpolator(AnimUtils.getFastOutLinearInInterpolator());
    } else {
        circularReveal = ViewAnimationUtils.createCircularReveal(view, view.getWidth() / 2, view.getHeight() / 2, (float) Math.hypot(startBounds.width() / 2, startBounds.height() / 2), endBounds.width() / 2);
        circularReveal.setInterpolator(AnimUtils.getLinearOutSlowInInterpolator());
        // Persist the end clip i.e. stay at FAB size after the reveal has run
        circularReveal.addListener(new AnimatorListenerAdapter() {

            @Override
            public void onAnimationEnd(Animator animation) {
                final ViewOutlineProvider fabOutlineProvider = view.getOutlineProvider();
                view.setOutlineProvider(new ViewOutlineProvider() {

                    boolean hasRun = false;

                    @Override
                    public void getOutline(final View view, Outline outline) {
                        final int left = (view.getWidth() - endBounds.width()) / 2;
                        final int top = (view.getHeight() - endBounds.height()) / 2;
                        outline.setOval(left, top, left + endBounds.width(), top + endBounds.height());
                        if (!hasRun) {
                            hasRun = true;
                            view.setClipToOutline(true);
                            // We have to remove this as soon as it's laid out so we can get the shadow back
                            view.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

                                @Override
                                public boolean onPreDraw() {
                                    if (view.getWidth() == endBounds.width() && view.getHeight() == endBounds.height()) {
                                        view.setOutlineProvider(fabOutlineProvider);
                                        view.setClipToOutline(false);
                                        view.getViewTreeObserver().removeOnPreDrawListener(this);
                                        return true;
                                    }
                                    return true;
                                }
                            });
                        }
                    }
                });
            }
        });
    }
    circularReveal.setDuration(duration);
    // Translate to end position along an arc
    final Animator translate = ObjectAnimator.ofFloat(view, View.TRANSLATION_X, View.TRANSLATION_Y, fromFab ? getPathMotion().getPath(translationX, translationY, 0, 0) : getPathMotion().getPath(0, 0, -translationX, -translationY));
    translate.setDuration(duration);
    translate.setInterpolator(fastOutSlowInInterpolator);
    // Fade contents of non-FAB view in/out
    List<Animator> fadeContents = null;
    if (view instanceof ViewGroup) {
        final ViewGroup vg = ((ViewGroup) view);
        fadeContents = new ArrayList<>(vg.getChildCount());
        for (int i = vg.getChildCount() - 1; i >= 0; i--) {
            final View child = vg.getChildAt(i);
            final Animator fade = ObjectAnimator.ofFloat(child, View.ALPHA, fromFab ? 1f : 0f);
            if (fromFab) {
                child.setAlpha(0f);
            }
            fade.setDuration(twoThirdsDuration);
            fade.setInterpolator(fastOutSlowInInterpolator);
            fadeContents.add(fade);
        }
    }
    // Fade in/out the fab color & icon overlays
    final Animator colorFade = ObjectAnimator.ofInt(fabColor, "alpha", fromFab ? 0 : 255);
    final Animator iconFade = ObjectAnimator.ofInt(fabIcon, "alpha", fromFab ? 0 : 255);
    if (!fromFab) {
        colorFade.setStartDelay(halfDuration);
        iconFade.setStartDelay(halfDuration);
    }
    colorFade.setDuration(halfDuration);
    iconFade.setDuration(halfDuration);
    colorFade.setInterpolator(fastOutSlowInInterpolator);
    iconFade.setInterpolator(fastOutSlowInInterpolator);
    // Run all animations together
    final AnimatorSet transition = new AnimatorSet();
    transition.playTogether(circularReveal, translate, colorFade, iconFade);
    transition.playTogether(fadeContents);
    if (dialogView != null) {
        final Animator dialogViewFade = ObjectAnimator.ofInt(dialogView, "alpha", 0).setDuration(twoThirdsDuration);
        dialogViewFade.setInterpolator(fastOutSlowInInterpolator);
        transition.playTogether(dialogViewFade);
    }
    transition.addListener(new AnimatorListenerAdapter() {

        @Override
        public void onAnimationEnd(Animator animation) {
            // Clean up
            view.getOverlay().clear();
            if (!fromFab) {
                view.setTranslationX(0);
                view.setTranslationY(0);
                view.setTranslationZ(0);
                view.measure(makeMeasureSpec(endBounds.width(), View.MeasureSpec.EXACTLY), makeMeasureSpec(endBounds.height(), View.MeasureSpec.EXACTLY));
                view.layout(endBounds.left, endBounds.top, endBounds.right, endBounds.bottom);
            }
        }
    });
    return new AnimUtils.NoPauseAnimator(transition);
}

Example 5 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project FreeFlow by Comcast.

the class FreeFlowContainerTest method testSourceCannotModifyFreeFlowContainerReferences.

/**
	 * Tests that changing an attached layout cannot change 
	 * the internal map of the item proxies insode a container
	 * 
	 * @throws InterruptedException
	 */
public void testSourceCannotModifyFreeFlowContainerReferences() throws InterruptedException {
    final CountDownLatch lock = new CountDownLatch(1);
    main.runOnUiThread(new Runnable() {

        @Override
        public void run() {
            final FreeFlowContainer container = new FreeFlowContainer(main);
            final VLayout vLayout = new VLayout();
            vLayout.setLayoutParams(new VLayout.LayoutParams(300, 200, 10));
            container.setLayout(vLayout);
            final DefaultSectionAdapter adapter = new DefaultSectionAdapter(main, 1, 2);
            container.setAdapter(adapter);
            main.setContentView(container);
            container.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

                @Override
                public boolean onPreDraw() {
                    int frameCount = container.getFrames().size();
                    adapter.setData(5, 10);
                    // setItems will force new frames to be generated, but not set 
                    vLayout.setAdapter(adapter);
                    vLayout.prepareLayout();
                    //assertEquals("Layout frames did not generate as expected", 5*(10+1), vLayout.getAllProxies().size());
                    assertEquals("FreeFlowContainer frames changed unexpectedly with data", frameCount, container.getFrames().size());
                    lock.countDown();
                    return false;
                }
            });
        }
    });
    lock.await(5000, TimeUnit.MILLISECONDS);
}