Example usage for android.view View getViewTreeObserver

Introduction

In this page you can find the example usage for android.view View getViewTreeObserver.

Prototype

public ViewTreeObserver getViewTreeObserver() 

Source Link

Document

Returns the ViewTreeObserver for this view's hierarchy.

Usage

From source file:Main.java

private static void expandInner(final View view, final View parentView, final ViewGroup rootContainer,
        final int targtetHeight) {

    setHeight(view, 0);//  w w w .  j  av a  2s. co m
    view.setVisibility(View.VISIBLE);
    final Animation animation = new Animation() {

        private final Rect rect = new Rect();
        private final Rect parentVisibleRect = new Rect();

        ViewTreeObserver.OnGlobalLayoutListener globalLayoutListener;

        private final Runnable checkViewRunnable = new Runnable() {
            @Override
            public void run() {
                checkForViewInsideVisibleArea();
            }
        };

        @Override
        protected void applyTransformation(float interpolatedTime, Transformation t) {

            int neededHeight = interpolatedTime == 1 ? LayoutParams.WRAP_CONTENT
                    : (int) (targtetHeight * interpolatedTime);
            setHeight(view, neededHeight);

            final ViewTreeObserver viewTreeObserver = view.getViewTreeObserver();

            if (globalLayoutListener == null) {
                globalLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {

                    @Override
                    public void onGlobalLayout() {

                        if (globalLayoutListener == null) {
                            removeGlobalLayoutListener(viewTreeObserver, this);
                        }

                        checkForViewInsideVisibleArea();
                    }
                };

                viewTreeObserver.addOnGlobalLayoutListener(globalLayoutListener);
            }

            if (globalLayoutListener != null && interpolatedTime == 1) {
                runInUIThread(checkViewRunnable);
                globalLayoutListener = null;
            }

            view.requestLayout();
        }

        @Override
        public boolean willChangeBounds() {
            return true;
        }

        private void checkForViewInsideVisibleArea() {

            if (rootContainer.indexOfChild(parentView) == -1) {
                return;
            }

            parentVisibleRect.left = 0;
            parentVisibleRect.top = 0;
            parentVisibleRect.right = parentView.getWidth();
            parentVisibleRect.bottom = parentView.getHeight();

            rootContainer.offsetDescendantRectToMyCoords(parentView, parentVisibleRect);

            if (parentVisibleRect.top < 0 || parentVisibleRect.bottom > rootContainer.getHeight()) {

                rect.left = parentView.getLeft();
                rect.top = parentView.getTop();
                rect.right = parentView.getRight();
                rect.bottom = parentView.getBottom();

                parentView.requestRectangleOnScreen(rect, true);
            }
        }
    };

    animation.setDuration(ANIMATION_DURATION);
    view.startAnimation(animation);
}

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From source file:com.example.mapdemo.LiteDemoActivity.java

/**
 * Called when the map is ready to add all markers and objects to the map.
 *
 * @param googleMap//  w ww . j ava2s .  c  o  m
 */
@Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;
    addMarkers();
    addPolyobjects();

    final View mapView = getSupportFragmentManager().findFragmentById(R.id.map).getView();
    if (mapView.getViewTreeObserver().isAlive()) {
        mapView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
            @SuppressWarnings("deprecation") // We use the new method when supported
            @SuppressLint("NewApi") // We check which build version we are using.
            @Override
            public void onGlobalLayout() {
                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                    mapView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                } else {
                    mapView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                }
                showAustralia(null);
            }
        });
    }
}

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From source file:com.antonioleiva.materializeyourapp.DetailActivity.java

private void initScrollFade(final ImageView image) {
    final View scrollView = findViewById(R.id.scroll);

    setComponentsStatus(scrollView, image);

    scrollView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
        @Override/*from w w w . ja v  a2s.  co  m*/
        public void onScrollChanged() {
            setComponentsStatus(scrollView, image);
        }
    });
}

---

From source file:de.janrenz.app.mediathek.RemoteImageCursorAdapter.java

@SuppressWarnings("deprecation")
@Override//  ww w.  j a  v a2 s  .c o  m
public void bindView(View v, Context context, Cursor c) {

    String title = c.getString(c.getColumnIndexOrThrow("title"));
    String subtitle = c.getString(c.getColumnIndexOrThrow("subtitle"));
    String imagePath = c.getString(c.getColumnIndexOrThrow("image"));
    String startTime = c.getString(c.getColumnIndexOrThrow("startTime"));
    String startTimeAsTimestamp = c.getString(c.getColumnIndex("startTimeAsTimestamp"));
    String isLive = c.getString(c.getColumnIndex("isLive"));
    if (this.layout == R.layout.headline_item_grid) {
        final View vl = v;

        v.findViewById(R.id.thumbnail).getViewTreeObserver()
                .addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                    @Override
                    public void onGlobalLayout() {

                        try {

                            View imgView = vl.findViewById(R.id.thumbnail);
                            imgView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                            ViewGroup.LayoutParams layout = imgView.getLayoutParams();
                            layout.height = imgView.getWidth() / 16 * 9;
                            imgView.setLayoutParams(layout);
                        } catch (Exception e) {
                        }
                    }
                });
    }

    /**
     * Next set the text of the entry.
     */
    if (isLive.equalsIgnoreCase("true")) {
        v.findViewById(R.id.live).setVisibility(View.VISIBLE);
        //v.setBackgroundColor(   context.getResources().getColor(R.color.highlight_live_list));
    } else {
        v.findViewById(R.id.live).setVisibility(View.GONE);
        //v.setBackgroundColor(   context.getResources().getColor(R.color.list_background));
    }

    TextView title_text = (TextView) v.findViewById(R.id.text_view);
    if (title_text != null) {
        title_text.setText(title);
    }

    TextView subtitle_text = (TextView) v.findViewById(R.id.text_view_sub);
    if (subtitle_text != null) {
        subtitle_text.setText(subtitle);
    }
    TextView subtitle2_text = (TextView) v.findViewById(R.id.text_view_sub2);
    if (subtitle2_text != null) {
        Date dt = new Date();
        // z.B. 'Fri Jan 26 19:03:56 GMT+01:00 2001'
        dt.setTime(Integer.parseInt(startTimeAsTimestamp) * 1000);
        dt.setHours(0);
        dt.setMinutes(0);
        dt.setSeconds(0);
        subtitle2_text.setText("ARD > " + startTime + " Uhr");
    }
    /**
     * Set the image
     */
    DisplayImageOptions loadingOptions = new DisplayImageOptions.Builder()
            ///.showStubImage(R.drawable.abs__item_background_holo_light)
            //.imageScaleType(ImageScaleType.EXACTLY)
            // .showImageForEmptyUri(R.drawable.ic_empty)
            //  .memoryCache(new WeakMemoryCache())
            .cacheInMemory()
            //.cacheOnDisc()
            .build();
    ImageView image_view = (ImageView) v.findViewById(R.id.thumbnail);

    if (image_view != null) {

        if (this.layout == R.layout.headline_item_grid) {
            imagePath = imagePath + "/" + 320;

        } else {

            imagePath = imagePath + "/" + 150;
        }
        ImageLoader.getInstance().displayImage(imagePath, image_view, loadingOptions);
    }
}

---

From source file:com.slx.funstream.ui.chat.SmileKeyboard.java

public void setSizeForSoftKeyboard() {
    View view = contentRoot.get();
    view.getViewTreeObserver().addOnGlobalLayoutListener(() -> {
        Rect r = new Rect();
        view.getWindowVisibleDisplayFrame(r);

        int screenHeight = view.getRootView().getHeight();
        int heightDifference = screenHeight - (r.bottom - r.top);
        int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            heightDifference -= context.getResources().getDimensionPixelSize(resourceId);
        }/*w  w  w . j  a  v  a 2  s  .  c  om*/
        if (heightDifference > 100) {
            softKeyBoardHeight = heightDifference - 150;// ~150 height of bottom buttons
            // if soft keyboard not displayed
            if (softKeyBoardHeight < 0)
                softKeyBoardHeight = 0;
            setSize(softKeyBoardHeight, LayoutParams.MATCH_PARENT);
            if (!isOpened) {
                if (onSoftKeyboardOpenCloseListener != null)
                    onSoftKeyboardOpenCloseListener.onKeyboardOpen(softKeyBoardHeight);
            }
            isOpened = true;
            if (pendingOpen) {
                showAtBottom();
                pendingOpen = false;
            }
        } else {
            isOpened = false;
            if (onSoftKeyboardOpenCloseListener != null)
                onSoftKeyboardOpenCloseListener.onKeyboardClose();
        }
    });
}

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From source file:org.cyanogenmod.designertools.ui.CreditsActivity.java

@Override
protected void onResume() {
    super.onResume();
    final View rootLayout = findViewById(R.id.activity_credits);
    rootLayout.setVisibility(View.INVISIBLE);

    ViewTreeObserver viewTreeObserver = rootLayout.getViewTreeObserver();
    if (viewTreeObserver.isAlive()) {
        viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override/*w w  w  .  ja v  a 2s  . co  m*/
            public void onGlobalLayout() {
                circularRevealActivity(rootLayout);
                rootLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
            }
        });
    }
}

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From source file:com.vinidsl.googleioextended.ui.fragment.MapFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.fragment_map, container, false);

    piso1 = (TextView) rootView.findViewById(R.id.textViewFloorOne);
    piso2 = (TextView) rootView.findViewById(R.id.textViewFloorTwo);

    MapsInitializer.initialize(getActivity());

    switch (GooglePlayServicesUtil.isGooglePlayServicesAvailable(getActivity())) {
    case ConnectionResult.SUCCESS:

        android.support.v4.app.FragmentManager myFM = getChildFragmentManager();
        final SupportMapFragment myMAPF = (SupportMapFragment) myFM.findFragmentById(R.id.map);
        googlemap = myMAPF.getMap();/*from w w  w . ja  v a2 s  .  c o m*/
        googlemap.setMyLocationEnabled(true);
        final View mapView = myFM.findFragmentById(R.id.map).getView();
        if (mapView.getViewTreeObserver().isAlive()) {
            mapView.getViewTreeObserver()
                    .addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

                        @Override
                        public void onGlobalLayout() {
                            // TODO now can work with the map
                            mapView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                            googlemap.moveCamera(
                                    CameraUpdateFactory.newLatLngZoom(new LatLng(-16.500484, -68.134246), 25));
                            piso1.setOnClickListener(new View.OnClickListener() {
                                @Override
                                public void onClick(View v) {
                                    piso1.setBackgroundColor(getResources().getColor(R.color.accent));
                                    piso2.setBackgroundColor(getResources().getColor(R.color.white));
                                    showFloorOne();
                                }
                            });

                            piso2.setOnClickListener(new View.OnClickListener() {
                                @Override
                                public void onClick(View v) {
                                    piso2.setBackgroundColor(getResources().getColor(R.color.accent));
                                    piso1.setBackgroundColor(getResources().getColor(R.color.white));
                                    showFloorTwo();
                                }
                            });
                            type = PreferencesHelper.getInt(PreferencesHelper.MAP, getActivity());
                            PreferencesHelper.putInt(PreferencesHelper.MAP, 0, getActivity());
                            switch (type) {
                            case 1:
                                piso1.setBackgroundColor(getResources().getColor(R.color.accent));
                                piso2.setBackgroundColor(getResources().getColor(R.color.white));
                                showFloorOne();
                                break;
                            case 2:
                                piso2.setBackgroundColor(getResources().getColor(R.color.accent));
                                piso1.setBackgroundColor(getResources().getColor(R.color.white));
                                showFloorTwo();
                                break;
                            case 3:
                                piso2.setBackgroundColor(getResources().getColor(R.color.accent));
                                piso1.setBackgroundColor(getResources().getColor(R.color.white));
                                showFloorTwo();
                                break;
                            }
                        }
                    });
        }
        break;
    case ConnectionResult.SERVICE_MISSING:
        // Todo install google play services
        break;
    case ConnectionResult.SERVICE_VERSION_UPDATE_REQUIRED:
        // Todo go to playstore to upload google play services
        break;
    default:
        // Todo some error happends try again later
    }

    return rootView;
}

---

From source file:net.iubris.ulysses.map.asynctask.PopulateMapAsyncTask.java

protected void autoZoom(final LatLngBounds latLngBounds) {
    final View mapView = ((FragmentActivity) context).getSupportFragmentManager()
            .findFragmentById(mapFragmentResId).getView();
    if (mapView.getViewTreeObserver().isAlive()) {
        mapView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
            @SuppressWarnings("deprecation")
            @SuppressLint("NewApi") // We check which build version we are using.
            @Override/*from  w  w  w . ja v  a  2 s  .com*/
            public void onGlobalLayout() {
                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                    mapView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                } else {
                    mapView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                }
                map.animateCamera(CameraUpdateFactory.newLatLngBounds(latLngBounds, LATLNG_BOUNDS_PADDING));
            }
        });
    }
}

---

From source file:com.ouyangzn.view.RefreshLayout.java

private void addHeaderView(final View view) {
    addView(view, 0);/* w w w. ja v a  2 s .c  o  m*/
    final ViewTreeObserver observer = view.getViewTreeObserver();
    observer.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            mHeaderHeight = view.getHeight();
        }
    });
}

---

From source file:com.learn.mobile.customview.henrytao.BaseBehavior.java

private void initViewTreeObserver(final CoordinatorLayout coordinatorLayout, final AppBarLayout child,
        final View target) {
    log("initViewTreeObserver");
    target.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
        @Override/*from  w  ww . j  a  v a  2 s . c  o m*/
        public void onScrollChanged() {
            if (target == BaseBehavior.this.vScrollTarget) {
                BaseBehavior.this.onScrollChanged(coordinatorLayout, child, target,
                        target.getScrollY() - getCurrentScrollOffset());
            }
        }
    });
}

---

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