android.support.annotation.TransitionRes#android.transition.Transition源码实例Demo

private void switchToPreview(Uri uri) {
    Fragment fragment = FragmentPreview.instance(uri);

    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
        int duration = getResources().getInteger(android.R.integer.config_mediumAnimTime);

        Slide slideTransition = new Slide(Gravity.LEFT);
        slideTransition.setDuration(duration);
        setExitTransition(slideTransition);

        Slide slideTransition2 = new Slide(Gravity.RIGHT);
        slideTransition2.setDuration(duration);
        fragment.setEnterTransition(slideTransition2);

        TransitionInflater inflater = TransitionInflater.from(getContext());
        Transition transition = inflater.inflateTransition(R.transition.transition_default);
        fragment.setSharedElementEnterTransition(transition);
    }

    getFragmentManager()
            .beginTransaction()
            .replace(R.id.frg_docker, fragment)
            .addSharedElement(mBtnFindWrapper, ViewCompat.getTransitionName(mBtnFindWrapper))
            .addToBackStack("select")
            .commitAllowingStateLoss();
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private TransitionSet constructTransitions() {
    int[] slideTargets = {R.id.ChatRecyclerView, R.id.chat_input, R.id.chat_input_divider};

    Transition slideTransition = new Slide(Gravity.BOTTOM);
    Transition fadeTransition = new Fade();

    for (int slideTarget : slideTargets) {
        slideTransition.addTarget(slideTarget);
        fadeTransition.excludeTarget(slideTarget, true);
    }

    TransitionSet set = new TransitionSet();
    set.addTransition(slideTransition);
    set.addTransition(fadeTransition);
    return set;
}
 

@Override
protected void viewsReady(ArrayMap<String, View> sharedElements) {
    super.viewsReady(sharedElements);
    mIsReadyForTransition = true;
    hideViews(mSharedElements);
    Transition viewsTransition = getViewsTransition();
    if (viewsTransition != null && mTransitioningViews != null) {
        removeExcludedViews(viewsTransition, mTransitioningViews);
        stripOffscreenViews();
        hideViews(mTransitioningViews);
    }
    if (mIsReturning) {
        sendSharedElementDestination();
    } else {
        moveSharedElementsToOverlay();
    }
    if (mSharedElementsBundle != null) {
        onTakeSharedElements();
    }
}
 

/**
 * This method is used for fragment transitions for ordered transactions to change the
 * enter and exit transition targets after the call to
 * {@link TransitionManager#beginDelayedTransition(ViewGroup, Transition)}. The exit transition
 * must ensure that it does not target any Views and the enter transition must start targeting
 * the Views of the incoming Fragment.
 *
 * @param sceneRoot The fragment container View
 * @param inFragment The last fragment that is entering
 * @param nonExistentView A view that does not exist in the hierarchy that is used as a
 *                        transition target to ensure no View is targeted.
 * @param sharedElementsIn The shared element Views of the incoming fragment
 * @param enterTransition The enter transition of the incoming fragment
 * @param enteringViews The entering Views of the incoming fragment
 * @param exitTransition The exit transition of the outgoing fragment
 * @param exitingViews The exiting views of the outgoing fragment
 */
private static void scheduleTargetChange(final ViewGroup sceneRoot,
        final Fragment inFragment, final View nonExistentView,
        final ArrayList<View> sharedElementsIn,
        final Transition enterTransition, final ArrayList<View> enteringViews,
        final Transition exitTransition, final ArrayList<View> exitingViews) {

    OneShotPreDrawListener.add(sceneRoot, () -> {
        if (enterTransition != null) {
            enterTransition.removeTarget(nonExistentView);
            ArrayList<View> views = configureEnteringExitingViews(
                    enterTransition, inFragment, sharedElementsIn, nonExistentView);
            enteringViews.addAll(views);
        }

        if (exitingViews != null) {
            if (exitTransition != null) {
                ArrayList<View> tempExiting = new ArrayList<>();
                tempExiting.add(nonExistentView);
                replaceTargets(exitTransition, exitingViews, tempExiting);
            }
            exitingViews.clear();
            exitingViews.add(nonExistentView);
        }
    });
}
 

/**
 * Returns a TransitionSet containing the shared element transition. The wrapping TransitionSet
 * targets all shared elements to ensure that no other Views are targeted. The shared element
 * transition can then target any or all shared elements without worrying about accidentally
 * targeting entering or exiting Views.
 *
 * @param inFragment The incoming fragment
 * @param outFragment the outgoing fragment
 * @param isPop True if this is a pop transaction or false if it is a normal (add) transaction.
 * @return A TransitionSet wrapping the shared element transition or null if no such transition
 * exists.
 */
private static TransitionSet getSharedElementTransition(Fragment inFragment,
        Fragment outFragment, boolean isPop) {
    if (inFragment == null || outFragment == null) {
        return null;
    }
    Transition transition = cloneTransition(isPop
            ? outFragment.getSharedElementReturnTransition()
            : inFragment.getSharedElementEnterTransition());
    if (transition == null) {
        return null;
    }
    TransitionSet transitionSet = new TransitionSet();
    transitionSet.addTransition(transition);
    return transitionSet;
}
 

/**
 * After the transition has started, remove all targets that we added to the transitions
 * so that the transitions are left in a clean state.
 */
private static void scheduleRemoveTargets(final Transition overalTransition,
        final Transition enterTransition, final ArrayList<View> enteringViews,
        final Transition exitTransition, final ArrayList<View> exitingViews,
        final TransitionSet sharedElementTransition, final ArrayList<View> sharedElementsIn) {
    overalTransition.addListener(new TransitionListenerAdapter() {
        @Override
        public void onTransitionStart(Transition transition) {
            if (enterTransition != null) {
                replaceTargets(enterTransition, enteringViews, null);
            }
            if (exitTransition != null) {
                replaceTargets(exitTransition, exitingViews, null);
            }
            if (sharedElementTransition != null) {
                replaceTargets(sharedElementTransition, sharedElementsIn, null);
            }
        }
    });
}
 

/**
 * This method adds views as targets to the transition, but only if the transition
 * doesn't already have a target. It is best for views to contain one View object
 * that does not exist in the view hierarchy (state.nonExistentView) so that
 * when they are removed later, a list match will suffice to remove the targets.
 * Otherwise, if you happened to have targeted the exact views for the transition,
 * the replaceTargets call will remove them unexpectedly.
 */
public static void addTargets(Transition transition, ArrayList<View> views) {
    if (transition == null) {
        return;
    }
    if (transition instanceof TransitionSet) {
        TransitionSet set = (TransitionSet) transition;
        int numTransitions = set.getTransitionCount();
        for (int i = 0; i < numTransitions; i++) {
            Transition child = set.getTransitionAt(i);
            addTargets(child, views);
        }
    } else if (!hasSimpleTarget(transition)) {
        List<View> targets = transition.getTargets();
        if (isNullOrEmpty(targets)) {
            // We can just add the target views
            int numViews = views.size();
            for (int i = 0; i < numViews; i++) {
                transition.addTarget(views.get(i));
            }
        }
    }
}
 

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

    if (getIntent() != null) {
        int avatar = getIntent().getIntExtra(getString(R.string.transition_shared_avatar), 0);
        String title = getIntent().getStringExtra(getString(R.string.transition_shared_title));

        if (avatar > 0) {
            imageAvatar.setImageResource(avatar);
            colorize(((BitmapDrawable) imageAvatar.getDrawable()).getBitmap());
        }
        if (title != null) {
            textTitle.setText(title);
        }

        Transition transition =
                TransitionInflater.from(this).inflateTransition(R.transition.slide_bottom);
        getWindow().setEnterTransition(transition);
    }
}
 

private void setupWindowAnimations() {
    Transition transition = null;

    switch (mSlideType) {
        case SLIDE_CODE:
            transition = buildEnterTransitionByCode();
            break;
        case SLIDE_XML:
            transition = buildEnterTransitionByXml();
            break;
        default:
            break;
    }
    getWindow().setEnterTransition(transition);
}
 

public void goAnimate(View view) {
        //Resource file solution
        ViewGroup root = findViewById(R.id.layout);
        Scene scene = Scene.getSceneForLayout(root, R.layout.activity_main_end, this);
        Transition transition = TransitionInflater.from(this)
                .inflateTransition(R.transition.transition_move);
        TransitionManager.go(scene, transition);

        //Code only solution
//        ViewGroup root = findViewById(R.id.layout);
//        Scene scene = new Scene(root);
//
//        Transition transition = new ChangeBounds();
//        TransitionManager.beginDelayedTransition(root,transition);
//
//        TextView textViewTop = findViewById(R.id.textViewTop);
//        RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)textViewTop.getLayoutParams();
//        params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM,1);
//        params.addRule(RelativeLayout.ALIGN_PARENT_TOP, 0);
//        textViewTop.setLayoutParams(params);
//
//        TextView textViewBottom = findViewById(R.id.textViewBottom);
//        params = (RelativeLayout.LayoutParams) textViewBottom.getLayoutParams();
//        params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM,0);
//        params.addRule(RelativeLayout.ALIGN_PARENT_TOP, 1);
//        textViewBottom.setLayoutParams(params);
//
//        TransitionManager.go(scene);
    }
 

public static void cleanupTransitions(final View sceneRoot, final View nonExistentView,
        Object enterTransitionObject, final ArrayList<View> enteringViews,
        Object exitTransitionObject, final ArrayList<View> exitingViews,
        Object sharedElementTransitionObject, final ArrayList<View> sharedElementTargets,
        Object overallTransitionObject, final ArrayList<View> hiddenViews,
        final Map<String, View> renamedViews) {
    final Transition enterTransition = (Transition) enterTransitionObject;
    final Transition exitTransition = (Transition) exitTransitionObject;
    final Transition sharedElementTransition = (Transition) sharedElementTransitionObject;
    final Transition overallTransition = (Transition) overallTransitionObject;
    if (overallTransition != null) {
        sceneRoot.getViewTreeObserver().addOnPreDrawListener(
                new ViewTreeObserver.OnPreDrawListener() {
            public boolean onPreDraw() {
                sceneRoot.getViewTreeObserver().removeOnPreDrawListener(this);
                if (enterTransition != null) {
                    enterTransition.removeTarget(nonExistentView);
                    removeTargets(enterTransition, enteringViews);
                }
                if (exitTransition != null) {
                    removeTargets(exitTransition, exitingViews);
                }
                if (sharedElementTransition != null) {
                    removeTargets(sharedElementTransition, sharedElementTargets);
                }
                for (Map.Entry<String, View> entry : renamedViews.entrySet()) {
                    View view = entry.getValue();
                    String name = entry.getKey();
                    view.setTransitionName(name);
                }
                int numViews = hiddenViews.size();
                for (int i = 0; i < numViews; i++) {
                    overallTransition.excludeTarget(hiddenViews.get(i), false);
                }
                overallTransition.excludeTarget(nonExistentView, false);
                return true;
            }
        });
    }
}
 

@SuppressLint("NewApi")
private void setupWindowAnimations() {
    Transition slideLeft = TransitionInflater.from(this).inflateTransition(android.R.transition.slide_left);
    Transition slideRight = TransitionInflater.from(this).inflateTransition(android.R.transition.slide_right);
    getWindow().setExitTransition(slideLeft);
    getWindow().setEnterTransition(slideRight);
    getWindow().setBackgroundDrawable(new ColorDrawable(Color.DKGRAY));
}
 

private void setupWindowAnimations() {
    Transition transition = null;

    switch (mSlideType) {
        case SLIDE_CODE:
            transition = buildEnterTransitionByCode();
            break;
        case SLIDE_XML:
            transition = buildEnterTransitionByXml();
            break;
        default:
            break;
    }
    getWindow().setEnterTransition(transition);
}
 

/**
 * Returns a clone of a transition or null if it is null
 */
private static Transition cloneTransition(Transition transition) {
    if (transition != null) {
        transition = transition.clone();
    }
    return transition;
}
 

/**
 * Returns the View in the incoming Fragment that should be used as the epicenter.
 *
 * @param inSharedElements The mapping of shared element names to Views in the
 *                         incoming fragment.
 * @param fragments A structure holding the transitioning fragments in this container.
 * @param enterTransition The transition used for the incoming Fragment's views
 * @param inIsPop Is the incoming fragment being added as a pop transaction?
 */
private static View getInEpicenterView(ArrayMap<String, View> inSharedElements,
        FragmentContainerTransition fragments,
        Transition enterTransition, boolean inIsPop) {
    BackStackRecord inTransaction = fragments.lastInTransaction;
    if (enterTransition != null && inSharedElements != null
            && inTransaction.mSharedElementSourceNames != null
            && !inTransaction.mSharedElementSourceNames.isEmpty()) {
        final String targetName = inIsPop
                ? inTransaction.mSharedElementSourceNames.get(0)
                : inTransaction.mSharedElementTargetNames.get(0);
        return inSharedElements.get(targetName);
    }
    return null;
}
 

/**
 * Solve TransitionManager leak problem
 */
public static void removeActivityFromTransitionManager(Activity activity) {
    final Class transitionManagerClass = TransitionManager.class;

    try {
        final Field runningTransitionsField = transitionManagerClass.getDeclaredField("sRunningTransitions");

        if (runningTransitionsField == null) {
            return;
        }

        runningTransitionsField.setAccessible(true);

        //noinspection unchecked
        final ThreadLocal<WeakReference<ArrayMap<ViewGroup, ArrayList<Transition>>>> runningTransitions
                = (ThreadLocal<WeakReference<ArrayMap<ViewGroup, ArrayList<Transition>>>>)
                runningTransitionsField.get(transitionManagerClass);

        if (runningTransitions == null
                || runningTransitions.get() == null
                || runningTransitions.get().get() == null) {
            return;
        }

        final ArrayMap map = runningTransitions.get().get();
        final View decorView = activity.getWindow().getDecorView();

        if (map.containsKey(decorView)) {
            map.remove(decorView);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

static void include(Object transition, View targetView) {
    ((Transition) transition).addTarget(targetView);
}
 

@Override
public void onTransitionEnd(Transition transition) {
    setExitSharedElementCallback(null);
}
 

@Override
public void onTransitionCancel(Transition transition) {}
 

public void onTransitionStart(Transition paramTransition) {
}
 

static void addTransition(Object transitionSet, Object transition) {
    ((TransitionSet) transitionSet).addTransition((Transition) transition);
}
 

@Nullable
public Transition getEnterTransition() {
	return mEnterTransition;
}
 

@Override
public void onTransitionCancel(Transition transition) {
    onTransitionEnd(transition);
}
 

@Override
public void onTransitionResume(Transition transition) {
}
 

@Override
public void onTransitionResume(Transition transition) {
    // Nothing special here
}
 

@Override
public void onTransitionStart(Transition transition) {
}
 

@Override
public void onTransitionEnd(Transition transition) {
}
 

@Override
public void onTransitionPause(Transition transition) {
    // Nothing special here
}
 

@Override
public void onTransitionResume(Transition transition) {
    onTransitionStart(transition);
}
 

@Override
public Transition getExitTransition() {
    throw new IllegalStateException("You can't call this!");
}