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

Example 1 with ViewTreeObserver

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

the class ViewPagerTabListViewFragment method onCreateView.

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.observable_scroll_view_fragment_listview, container, false);
    Activity parentActivity = getActivity();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.list);
    listView.addHeaderView(inflater.inflate(R.layout.observable_scroll_view_padding, null));
    List<String> items = new ArrayList<String>();
    for (int i = 1; i <= 100; i++) {
        items.add("Item " + i);
    }
    listView.setAdapter(new ArrayAdapter<String>(parentActivity, android.R.layout.simple_list_item_1, items));
    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        // Scroll to the specified position after layout
        Bundle args = getArguments();
        if (args != null && args.containsKey(ARG_INITIAL_POSITION)) {
            final int initialPosition = args.getInt(ARG_INITIAL_POSITION, 0);
            ViewTreeObserver vto = listView.getViewTreeObserver();
            vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

                @Override
                public void onGlobalLayout() {
                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                        listView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    } else {
                        listView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    }
                    // scrollTo() doesn't work, should use setSelection()
                    listView.setSelection(initialPosition);
                }
            });
        }
        listView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }
    return view;
}

Example 2 with ViewTreeObserver

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

the class ViewPagerTabScrollViewFragment method onCreateView.

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.observable_scroll_view_fragment_scrollview, container, false);
    final ObservableScrollView scrollView = (ObservableScrollView) view.findViewById(R.id.scroll);
    Activity parentActivity = getActivity();
    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        // Scroll to the specified offset after layout
        Bundle args = getArguments();
        if (args != null && args.containsKey(ARG_SCROLL_Y)) {
            final int scrollY = args.getInt(ARG_SCROLL_Y, 0);
            ViewTreeObserver vto = scrollView.getViewTreeObserver();
            vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

                @Override
                public void onGlobalLayout() {
                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                        scrollView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    } else {
                        scrollView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    }
                    scrollView.scrollTo(0, scrollY);
                }
            });
        }
        scrollView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }
    return view;
}

Example 3 with ViewTreeObserver

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

the class FlexibleSpaceWithImageScrollViewActivity method onCreate.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.observable_scroll_view_activity_flexiblespacewithimagescrollview);
    setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
    mFlexibleSpaceImageHeight = getResources().getDimensionPixelSize(R.dimen.flexible_space_image_height);
    mFlexibleSpaceShowFabOffset = getResources().getDimensionPixelSize(R.dimen.flexible_space_show_fab_offset);
    mActionBarSize = getActionBarSize();
    mToolbarColor = getResources().getColor(R.color.primary);
    mToolbar = findViewById(R.id.toolbar);
    if (!TOOLBAR_IS_STICKY) {
        mToolbar.setBackgroundColor(Color.TRANSPARENT);
    }
    mImageView = findViewById(R.id.image);
    mOverlayView = findViewById(R.id.overlay);
    mScrollView = (ObservableScrollView) findViewById(R.id.scroll);
    mScrollView.setScrollViewCallbacks(this);
    mTitleView = (TextView) findViewById(R.id.title);
    mTitleView.setText(getTitle());
    setTitle(null);
    mFab = findViewById(R.id.fab);
    mFabMargin = getResources().getDimensionPixelSize(R.dimen.margin_standard);
    ViewHelper.setScaleX(mFab, 0);
    ViewHelper.setScaleY(mFab, 0);
    ViewTreeObserver vto = mScrollView.getViewTreeObserver();
    vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

        @Override
        public void onGlobalLayout() {
            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                mScrollView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
            } else {
                mScrollView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            }
            mScrollView.scrollTo(0, mFlexibleSpaceImageHeight - mActionBarSize);
        }
    });
}

Example 4 with ViewTreeObserver

use of android.view.ViewTreeObserver in project Launcher3 by chislon.

the class LauncherTransitionable method showAppsCustomizeHelper.

private void showAppsCustomizeHelper(final boolean animated, final boolean springLoaded, final AppsCustomizePagedView.ContentType contentType) {
    if (mStateAnimation != null) {
        mStateAnimation.setDuration(0);
        mStateAnimation.cancel();
        mStateAnimation = null;
    }
    final Resources res = getResources();
    final int duration = res.getInteger(R.integer.config_appsCustomizeZoomInTime);
    final int fadeDuration = res.getInteger(R.integer.config_appsCustomizeFadeInTime);
    final float scale = (float) res.getInteger(R.integer.config_appsCustomizeZoomScaleFactor);
    final View fromView = mWorkspace;
    final AppsCustomizeTabHost toView = mAppsCustomizeTabHost;
    final int startDelay = res.getInteger(R.integer.config_workspaceAppsCustomizeAnimationStagger);
    setPivotsForZoom(toView, scale);
    // Shrink workspaces away if going to AppsCustomize from workspace
    Animator workspaceAnim = mWorkspace.getChangeStateAnimation(Workspace.State.SMALL, animated);
    if (!AppsCustomizePagedView.DISABLE_ALL_APPS) {
        // Set the content type for the all apps space
        mAppsCustomizeTabHost.setContentTypeImmediate(contentType);
    }
    if (animated) {
        toView.setScaleX(scale);
        toView.setScaleY(scale);
        final LauncherViewPropertyAnimator scaleAnim = new LauncherViewPropertyAnimator(toView);
        scaleAnim.scaleX(1f).scaleY(1f).setDuration(duration).setInterpolator(new Workspace.ZoomOutInterpolator());
        toView.setVisibility(View.VISIBLE);
        toView.setAlpha(0f);
        final ObjectAnimator alphaAnim = LauncherAnimUtils.ofFloat(toView, "alpha", 0f, 1f).setDuration(fadeDuration);
        alphaAnim.setInterpolator(new DecelerateInterpolator(1.5f));
        alphaAnim.addUpdateListener(new AnimatorUpdateListener() {

            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                if (animation == null) {
                    throw new RuntimeException("animation is null");
                }
                float t = (Float) animation.getAnimatedValue();
                dispatchOnLauncherTransitionStep(fromView, t);
                dispatchOnLauncherTransitionStep(toView, t);
            }
        });
        // toView should appear right at the end of the workspace shrink
        // animation
        mStateAnimation = LauncherAnimUtils.createAnimatorSet();
        mStateAnimation.play(scaleAnim).after(startDelay);
        mStateAnimation.play(alphaAnim).after(startDelay);
        mStateAnimation.addListener(new AnimatorListenerAdapter() {

            @Override
            public void onAnimationStart(Animator animation) {
                // Prepare the position
                toView.setTranslationX(0.0f);
                toView.setTranslationY(0.0f);
                toView.setVisibility(View.VISIBLE);
                toView.bringToFront();
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                dispatchOnLauncherTransitionEnd(fromView, animated, false);
                dispatchOnLauncherTransitionEnd(toView, animated, false);
                // Hide the search bar
                if (mSearchDropTargetBar != null) {
                    mSearchDropTargetBar.hideSearchBar(false);
                }
            }
        });
        if (workspaceAnim != null) {
            mStateAnimation.play(workspaceAnim);
        }
        boolean delayAnim = false;
        dispatchOnLauncherTransitionPrepare(fromView, animated, false);
        dispatchOnLauncherTransitionPrepare(toView, animated, false);
        // yet, delay the animation until we get a layout pass
        if ((((LauncherTransitionable) toView).getContent().getMeasuredWidth() == 0) || (mWorkspace.getMeasuredWidth() == 0) || (toView.getMeasuredWidth() == 0)) {
            delayAnim = true;
        }
        final AnimatorSet stateAnimation = mStateAnimation;
        final Runnable startAnimRunnable = new Runnable() {

            public void run() {
                // we waited for a layout/draw pass
                if (mStateAnimation != stateAnimation)
                    return;
                setPivotsForZoom(toView, scale);
                dispatchOnLauncherTransitionStart(fromView, animated, false);
                dispatchOnLauncherTransitionStart(toView, animated, false);
                LauncherAnimUtils.startAnimationAfterNextDraw(mStateAnimation, toView);
            }
        };
        if (delayAnim) {
            final ViewTreeObserver observer = toView.getViewTreeObserver();
            observer.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

                public void onGlobalLayout() {
                    startAnimRunnable.run();
                    toView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                }
            });
        } else {
            startAnimRunnable.run();
        }
    } else {
        toView.setTranslationX(0.0f);
        toView.setTranslationY(0.0f);
        toView.setScaleX(1.0f);
        toView.setScaleY(1.0f);
        toView.setVisibility(View.VISIBLE);
        toView.bringToFront();
        if (!springLoaded && !LauncherAppState.getInstance().isScreenLarge()) {
            // Hide the search bar
            if (mSearchDropTargetBar != null) {
                mSearchDropTargetBar.hideSearchBar(false);
            }
        }
        dispatchOnLauncherTransitionPrepare(fromView, animated, false);
        dispatchOnLauncherTransitionStart(fromView, animated, false);
        dispatchOnLauncherTransitionEnd(fromView, animated, false);
        dispatchOnLauncherTransitionPrepare(toView, animated, false);
        dispatchOnLauncherTransitionStart(toView, animated, false);
        dispatchOnLauncherTransitionEnd(toView, animated, false);
    }
}

Example 5 with ViewTreeObserver

use of android.view.ViewTreeObserver in project Launcher3 by chislon.

the class LauncherTransitionable method onWindowVisibilityChanged.

public void onWindowVisibilityChanged(int visibility) {
    mVisible = visibility == View.VISIBLE;
    updateRunning();
    // is a more appropriate event to handle
    if (mVisible) {
        mAppsCustomizeTabHost.onWindowVisible();
        if (!mWorkspaceLoading) {
            final ViewTreeObserver observer = mWorkspace.getViewTreeObserver();
            // We want to let Launcher draw itself at least once before we force it to build
            // layers on all the workspace pages, so that transitioning to Launcher from other
            // apps is nice and speedy.
            observer.addOnDrawListener(new ViewTreeObserver.OnDrawListener() {

                private boolean mStarted = false;

                public void onDraw() {
                    if (mStarted)
                        return;
                    mStarted = true;
                    // We delay the layer building a bit in order to give
                    // other message processing a time to run.  In particular
                    // this avoids a delay in hiding the IME if it was
                    // currently shown, because doing that may involve
                    // some communication back with the app.
                    mWorkspace.postDelayed(mBuildLayersRunnable, 500);
                    final ViewTreeObserver.OnDrawListener listener = this;
                    mWorkspace.post(new Runnable() {

                        public void run() {
                            if (mWorkspace != null && mWorkspace.getViewTreeObserver() != null) {
                                mWorkspace.getViewTreeObserver().removeOnDrawListener(listener);
                            }
                        }
                    });
                    return;
                }
            });
        }
        // the app market intent, so refresh the icon
        if (!DISABLE_MARKET_BUTTON) {
            updateAppMarketIcon();
        }
        clearTypedText();
    }
}