Example usage for android.view ViewTreeObserver isAlive

Introduction

In this page you can find the example usage for android.view ViewTreeObserver isAlive.

Prototype

public boolean isAlive() 

Source Link

Document

Indicates whether this ViewTreeObserver is alive.

Usage

From source file:despotoski.nikola.github.com.bottomnavigationlayout.Util.java

public static void runOnAttachedToLayout(View v, final Runnable runnable) {
    if (ViewCompat.isLaidOut(v))
        runnable.run();/* w  w  w.  ja v  a 2  s .  com*/
    else {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            v.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
                @TargetApi(Build.VERSION_CODES.HONEYCOMB)
                @Override
                public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft,
                        int oldTop, int oldRight, int oldBottom) {
                    runnable.run();
                    v.removeOnLayoutChangeListener(this);
                }
            });
            return;
        }

        final ViewTreeObserver viewTreeObserver = v.getViewTreeObserver();
        if (viewTreeObserver != null && viewTreeObserver.isAlive()) {
            viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                @Override
                public void onGlobalLayout() {
                    runnable.run();
                    if (viewTreeObserver.isAlive())
                        //noinspection deprecation
                        viewTreeObserver.removeGlobalOnLayoutListener(this);
                }
            });
        }
    }
}

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From source file:com.getkeepsafe.taptargetview.ViewUtil.java

/** Executes the given {@link java.lang.Runnable} when the view is laid out **/
static void onLaidOut(final View view, final Runnable runnable) {
    if (isLaidOut(view)) {
        runnable.run();//from  w  ww .ja v a  2 s.c o  m
        return;
    }

    final ViewTreeObserver observer = view.getViewTreeObserver();
    observer.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            final ViewTreeObserver trueObserver;

            if (observer.isAlive()) {
                trueObserver = observer;
            } else {
                trueObserver = view.getViewTreeObserver();
            }

            removeOnGlobalLayoutListener(trueObserver, this);

            runnable.run();
        }
    });
}

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From source file:com.agenmate.lollipop.util.ViewUtils.java

public static void waitForLayoutPrepared(final View view, final LayoutPreparedListener listener) {
    final ViewTreeObserver viewTreeObserver = view.getViewTreeObserver();
    if (viewTreeObserver != null) {
        viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override//from   www.  ja  va2s  . c  om
            public void onGlobalLayout() {
                invokeLayoutListener();
                removeGlobalOnLayoutListenerIfNeeded();
            }

            private void invokeLayoutListener() {
                if (listener != null) {
                    listener.onLayoutPrepared(view);
                }
            }

            private void removeGlobalOnLayoutListenerIfNeeded() {
                final ViewTreeObserver laterViewTreeObserver = view.getViewTreeObserver();
                if (laterViewTreeObserver != null && laterViewTreeObserver.isAlive()) {
                    laterViewTreeObserver.removeGlobalOnLayoutListener(this);
                }
            }
        });
    }
}

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From source file:eu.inmite.android.lib.validations.form.FormValidator.java

/**
 * stop previously started live validation by {@link #startLiveValidation(Object, android.view.View, eu.inmite.android.lib.validations.form.iface.IValidationCallback)}
 * @param target live validation is recognized by target object
 * @return true if there was live validation to stop
 *//*ww  w .ja v  a  2 s  .c  om*/
public static boolean stopLiveValidation(final Object target) {
    if (sLiveValidations == null || !sLiveValidations.containsKey(target)) {
        return false;
    }
    final ViewGlobalFocusChangeListener removed = sLiveValidations.remove(target);
    final ViewTreeObserver treeObserver = removed.formContainer.getViewTreeObserver();
    if (treeObserver.isAlive()) {
        treeObserver.removeOnGlobalFocusChangeListener(removed);
        return true;
    }

    return false;
}

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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/*from w w  w  . ja  va 2 s.c  o m*/
            public void onGlobalLayout() {
                circularRevealActivity(rootLayout);
                rootLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
            }
        });
    }
}

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From source file:com.android.incallui.CircularRevealActivity.java

private void setupDecorView(final Point touchPoint, MaterialPalette palette) {
    final View view = getWindow().getDecorView();

    // The circle starts from an initial size of 0 so clip it such that it is invisible. When
    // the animation later starts, this clip will be clobbered by the circular reveal clip.
    // See ViewAnimationUtils.createCircularReveal.
    view.setOutlineProvider(new ViewOutlineProvider() {
        @Override/* www  . ja  v  a  2 s.c  om*/
        public void getOutline(View view, Outline outline) {
            // Using (0, 0, 0, 0) will not work since the outline will simply be treated as
            // an empty outline.
            outline.setOval(-1, -1, 0, 0);
        }
    });
    view.setClipToOutline(true);

    if (palette != null) {
        view.findViewById(R.id.outgoing_call_animation_circle).setBackgroundColor(palette.mPrimaryColor);
        getWindow().setStatusBarColor(palette.mSecondaryColor);
    }

    view.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {
        @Override
        public boolean onPreDraw() {
            final ViewTreeObserver vto = view.getViewTreeObserver();
            if (vto.isAlive()) {
                vto.removeOnPreDrawListener(this);
            }
            final Animator animator = getRevealAnimator(touchPoint);
            // Since this animator is a RenderNodeAnimator (native animator), add an arbitary
            // start delay to force the onAnimationStart callback to happen later on the UI
            // thread. Otherwise it would happen right away inside animator.start()
            animator.setStartDelay(5);
            animator.addListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationStart(Animator animation) {
                    InCallPresenter.getInstance().onCircularRevealStarted(CircularRevealActivity.this);
                }

                @Override
                public void onAnimationEnd(Animator animation) {
                    view.setClipToOutline(false);
                    super.onAnimationEnd(animation);
                }
            });
            animator.start();
            return false;
        }
    });
}

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From source file:pl.edu.agh.schedule.details.DetailFragment.java

private void initViews() {
    mMaxHeaderElevation = getResources().getDimensionPixelSize(R.dimen.detail_max_header_elevation);

    mScrollView = (ObservableScrollView) getActivity().findViewById(R.id.scroll_view);
    mScrollView.addCallbacks(this);
    ViewTreeObserver vto = mScrollView.getViewTreeObserver();
    if (vto.isAlive()) {
        vto.addOnGlobalLayoutListener(mGlobalLayoutListener);
    }//from   ww  w .j a  v a  2s .  com

    mScrollViewChild = getActivity().findViewById(R.id.scroll_view_child);
    mScrollViewChild.setVisibility(View.INVISIBLE);

    mDetailsContainer = getActivity().findViewById(R.id.details_container);
    mHeaderBox = getActivity().findViewById(R.id.header_session);
    mTitle = (TextView) getActivity().findViewById(R.id.session_title);
    mPhotoViewContainer = getActivity().findViewById(R.id.session_photo_container);
    mPhotoView = (ImageView) getActivity().findViewById(R.id.session_photo);

    mAbstract = (TextView) getActivity().findViewById(R.id.session_abstract);

    ViewCompat.setTransitionName(mPhotoView, "photo");

    mNoPlaceholderImageLoader = new ImageLoader(getContext());
}

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From source file:fr.tvbarthel.apps.sayitfromthesky.activities.MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.inject(this);

    mActionBarTitleColorSpan = new AlphaForegroundColorSpan(getResources().getColor(R.color.material_grey_300));
    mActionBarTitleSpannable = new SpannableString(getString(R.string.app_name));
    setActionBarTitleAlpha(1);/*from   ww w .j  a  v a  2 s . c  o  m*/

    // Compute the action bar size
    mActionBarSize = ActionBarHelper.getActionBarSize(this);

    // Set the height of the header container to 1/3.5 of the root height.
    ViewTreeObserver vto = mRootView.getViewTreeObserver();
    if (vto.isAlive()) {
        vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                ViewHelper.removeOnGlobalLayoutListener(mRootView, this);
                final int headerHeight = (int) (mRootView.getHeight() / 3.5);
                mHeaderContainer.getLayoutParams().height = headerHeight;
                mListView.setPadding(0, headerHeight - mActionBarSize, 0, 0);
                final int actionBarLogoSize = getResources()
                        .getDimensionPixelSize(R.dimen.action_bar_logo_size);
                final int actionBarMarginLeft = getResources()
                        .getDimensionPixelOffset(R.dimen.action_bar_margin_left);
                mHeaderLogoMaxTranslationX = (mHeaderContainer.getWidth() - actionBarLogoSize) / 2
                        - actionBarMarginLeft;
                mHeaderLogoFinalScale = ((float) actionBarLogoSize) / mHeaderLogo.getWidth();
            }

        });
    }

    mDrawingAdapter = new DrawingAdapter(this);
    initListView();
    getLoaderManager().initLoader(LOADER_ID_DRAWINGS, null, this);
    ViewHelper.slideFromBottom(mBtnNewDrawing);
}

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From source file:com.example.linhdq.test.MonitoredActivity.java

/**
 * position the app icon at the bottom of the action bar and start animation
 *///from  w ww  . j a  v a2  s  .c o m
private void initAppIcon(final int dialogId, ImageView appIcon) {
    setDialogId(dialogId);
    mAppIcon = appIcon;
    final ViewTreeObserver viewTreeObserver = appIcon.getViewTreeObserver();
    if (viewTreeObserver.isAlive()) {
        viewTreeObserver.addOnGlobalLayoutListener(this);

    }
}

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From source file:quickbeer.android.features.barcodescanner.BarcodeScanActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *///  www .j  a v  a2 s  . co m
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);

    analytics = new Analytics(this);
    analytics.createEvent(Events.Screen.BARCODE_SCANNER);

    setContentView(R.layout.barcode_scan_activity);

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<BarcodeGraphic>) findViewById(R.id.graphicOverlay);

    ViewTreeObserver viewTreeObserver = mPreview.getViewTreeObserver();

    if (viewTreeObserver.isAlive()) {
        viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                mPreview.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                viewWidth = mPreview.getWidth();
                viewHeight = mPreview.getHeight();

                // Check for the camera permission before accessing the camera.  If the
                // permission is not granted yet, request permission.
                int rc = ContextCompat.checkSelfPermission(BarcodeScanActivity.this,
                        Manifest.permission.CAMERA);
                if (rc == PackageManager.PERMISSION_GRANTED) {
                    createCameraSource();
                    startCameraSource();
                } else {
                    requestCameraPermission();
                }
            }
        });
    }
}

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