android.view.ViewAnimationUtils#createCircularReveal ( )源码实例Demo

/** Adds post radial expansion animator. */
private void createPostFillRadialExpansion(
    View child,
    long delay,
    long duration,
    long totalDuration,
    int revealCenterX,
    int revealCenterY,
    float toRadius,
    @NonNull List<Animator> animations) {
  if (VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) {
    // Circular reveal in L+ doesn't stick around.
    if (delay + duration < totalDuration) {
      Animator animator =
          ViewAnimationUtils.createCircularReveal(
              child, revealCenterX, revealCenterY, toRadius, toRadius);
      animator.setStartDelay(delay + duration);
      animator.setDuration(totalDuration - (delay + duration));
      animations.add(animator);
    }
  }
}
 

public static void circleAnimate(final View view, int cx, int cy) {
    if (view == null) return;
    try {
        view.setVisibility(View.INVISIBLE);

        int finalRadius = Math.max(view.getWidth(), view.getHeight());
        Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, 0, finalRadius);
        anim.setDuration(500);
        anim.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationStart(Animator animation) {
                super.onAnimationStart(animation);
                view.setVisibility(View.VISIBLE);
            }
        });
        anim.start();
    } catch (IllegalStateException e) {
        view.setVisibility(View.VISIBLE);
    }
}
 

private void showRevealEditText(FrameLayout view) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        int cx = view.getRight() - 30;
        int cy = view.getBottom() - 60;
        int finalRadius = Math.max(view.getWidth(), view.getHeight());

        Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, 0, finalRadius);
        view.setVisibility(View.VISIBLE);
        isEditTextVisible = true;
        anim.start();
    } else {
        view.setVisibility(View.VISIBLE);
        isEditTextVisible = true;
    }

}
 

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private static void startCircularRevealExitAnimation(Context context, final View view, RevealAnimationSetting revealSettings, int startColor, int endColor, final AnimationFinishedListener listener) {
    if (isAnimationEnabled() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        int cx = revealSettings.getCenterX();
        int cy = revealSettings.getCenterY();
        int width = revealSettings.getWidth();
        int height = revealSettings.getHeight();

        float initRadius = (float) Math.sqrt(width * width + height * height);
        Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, initRadius, 0);
        anim.setDuration(getMediumDuration(context));
        anim.setInterpolator(new FastOutSlowInInterpolator());
        anim.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                //Important: This will prevent the view's flashing (visible between the finished animation and the Fragment remove)
                view.setVisibility(View.GONE);
                listener.onAnimationFinished();
            }
        });
        anim.start();
        startBackgroundColorAnimation(view, startColor, endColor, getMediumDuration(context));
    } else {
        listener.onAnimationFinished();
    }
}
 

private void performRevealAnimation(final View view, int screenCenterX, int screenCenterY) {
    int[] animatingViewCoords = new int[2];
    view.getLocationOnScreen(animatingViewCoords);
    int centerX = screenCenterX - animatingViewCoords[0];
    int centerY = screenCenterY - animatingViewCoords[1];

    Point size = new Point();
    getActivity().getWindowManager().getDefaultDisplay().getSize(size);
    int maxRadius = size.y;

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        view.setVisibility(View.VISIBLE);
        Animator animator = ViewAnimationUtils.createCircularReveal(view, centerX, centerY, 0, maxRadius);
        animator.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                view.setVisibility(View.INVISIBLE);
            }
        });
        animator.start();
    }
}
 

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void contractLollipop(int x, int y, float startRadius, float endRadius) {

    Animator toolbarContractAnim = ViewAnimationUtils.createCircularReveal(
            mFabExpandLayout, x, y, startRadius, endRadius);
    toolbarContractAnim.setDuration(animationDuration);

    toolbarContractAnim.addListener(new AnimatorListenerAdapter() {
        @Override
        public void onAnimationEnd(Animator animation) {
            super.onAnimationEnd(animation);
            contractAnimationEnd();
        }
    });

    toolbarContractAnim.start();
}
 

private void animateAvatarSelectorShow(int duration) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        gridContainer.setVisibility(View.INVISIBLE);
        // get the center for the clipping circle
        int cx = (int) fab.getX() + fab.getWidth() / 2;
        int cy = 0;
        // get the final radius for the clipping circle
        int finalRadius = (int) Math.hypot(userAvatarBg.getWidth(), bg.getHeight() - userAvatarBg.getHeight());
        // create the animator for this view (the start radius is zero)
        Animator anim = ViewAnimationUtils.createCircularReveal(gridContainer, cx, cy, 0, finalRadius);
        anim.setInterpolator(new DecelerateInterpolator());
        // make the view visible and start the animation
        gridContainer.setVisibility(View.VISIBLE);
        anim.setDuration(duration).start();
        gridContainer.postDelayed(new Runnable() {
            @Override
            public void run() {
                scrollToColor(user.color());
            }
        }, duration);
    }
}
 

/**
 * 向四周伸张，直到完成显示。
 */
@SuppressLint("NewApi")
public static void show(View myView, float startRadius, long durationMills) {
    if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
        myView.setVisibility(View.VISIBLE);
        return;
    }

    int cx = (myView.getLeft() + myView.getRight()) / 2;
    int cy = (myView.getTop() + myView.getBottom()) / 2;

    int w = myView.getWidth();
    int h = myView.getHeight();

    // 勾股定理 & 进一法
    int finalRadius = (int) Math.sqrt(w * w + h * h) + 1;

    Animator anim =
        ViewAnimationUtils.createCircularReveal(myView, cx, cy, startRadius, finalRadius);
    myView.setVisibility(View.VISIBLE);
    anim.setDuration(durationMills);
    anim.start();
}
 

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public static void hideWithReveal(View view, Point point) {
    if(DeviceUtils.supportV5()) {
        // get the initial radius for the clipping circle
        int initialRadius = (int) Math.hypot(view.getWidth(), view.getHeight());

        // create the animation (the final radius is zero)
        Animator animator = ViewAnimationUtils.createCircularReveal(view, point.x, point.y, initialRadius, 0);

        // make the view invisible when the animation is done
        animator.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                view.setVisibility(View.INVISIBLE);
            }
        });

        animator.setInterpolator(new AccelerateDecelerateInterpolator());
        animator.setDuration(500);
        animator.start();
    } else {
        view.setVisibility(View.INVISIBLE);
    }
}
 

/**
 * Create the reveal effect animation
 *
 * @param view the View to reveal
 * @param cx   coordinate X
 * @param cy   coordinate Y
 */
@TargetApi(VERSION_CODES.LOLLIPOP)
public static void reveal(final View view, int cx, int cy) {
    if (!hasLollipop()) {
        view.setVisibility(View.VISIBLE);
        return;
    }

    //Get the final radius for the clipping circle
    int finalRadius = Math.max(view.getWidth(), view.getHeight());

    //Create the animator for this view (the start radius is zero)
    Animator animator =
            ViewAnimationUtils.createCircularReveal(view, cx, cy, 0, finalRadius);

    //Make the view visible and start the animation
    view.setVisibility(View.VISIBLE);
    animator.start();
}
 

@Override
public Animator onAppear(ViewGroup sceneRoot, View view,
                         TransitionValues startValues,
                         TransitionValues endValues) {
    if (view == null || view.getHeight() == 0 || view.getWidth() == 0) return null;
    ensureCenterPoint(sceneRoot, view);
    return new AnimUtils.NoPauseAnimator(ViewAnimationUtils.createCircularReveal(
            view,
            center.x,
            center.y,
            startRadius,
            getFullyRevealedRadius(view)));
}
 

/**
 * Create the un-reveal effect animation
 *
 * @param view the View to hide
 * @param cx   coordinate X
 * @param cy   coordinate Y
 */
@TargetApi(VERSION_CODES.LOLLIPOP)
public static void unReveal(final View view, int cx, int cy) {
    if (!hasLollipop()) {
        view.setVisibility(View.GONE);
        return;
    }

    //Get the initial radius for the clipping circle
    int initialRadius = view.getWidth();

    //Create the animation (the final radius is zero)
    Animator animator =
            ViewAnimationUtils.createCircularReveal(view, cx, cy, initialRadius, 0);

    //Make the view invisible when the animation is done
    animator.addListener(new AnimatorListenerAdapter() {
        @Override
        public void onAnimationEnd(Animator animation) {
            super.onAnimationEnd(animation);
            view.setVisibility(View.GONE);
        }
    });

    //Start the animation
    animator.start();
}
 

@Override
protected Animator getAnimator(@NonNull ViewGroup container, View from, View to, boolean isPush, boolean toAddedToContainer) {
    final float radius = (float) Math.hypot(mCx, mCy);
    Animator animator = null;
    if (isPush && to != null) {
        animator = ViewAnimationUtils.createCircularReveal(to, mCx, mCy, 0, radius);
    } else if (!isPush && from != null) {
        animator = ViewAnimationUtils.createCircularReveal(from, mCx, mCy, radius, 0);
    }
    return animator;
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private Animator getCloseReveal(final View view) {
    int cx = view.getWidth() / 2;
    int cy = view.getHeight() / 2;

    float radius = (float) Math.hypot(cx, cy);

    final Animator animator = ViewAnimationUtils.createCircularReveal(view, cx, cy, radius, 0);

    return animator;
}
 

public AnimatorSet createDefaultColorChangeAnimatorSet(int newColor) {
    Animator backgroundAnimator;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        //noinspection ConstantConditions
        int x = (int) (fragment.playbackControlsFragment.playPauseFab.getX() + fragment.playbackControlsFragment.playPauseFab.getWidth() / 2 + fragment.playbackControlsFragment.getView().getX());
        int y = (int) (fragment.playbackControlsFragment.playPauseFab.getY() + fragment.playbackControlsFragment.playPauseFab.getHeight() / 2 + fragment.playbackControlsFragment.getView().getY() + fragment.playbackControlsFragment.progressSlider.getHeight());
        float startRadius = Math.max(fragment.playbackControlsFragment.playPauseFab.getWidth() / 2, fragment.playbackControlsFragment.playPauseFab.getHeight() / 2);
        float endRadius = Math.max(fragment.colorBackground.getWidth(), fragment.colorBackground.getHeight());
        fragment.colorBackground.setBackgroundColor(newColor);
        backgroundAnimator = ViewAnimationUtils.createCircularReveal(fragment.colorBackground, x, y, startRadius, endRadius);
    } else {
        backgroundAnimator = ViewUtil.createBackgroundColorTransition(fragment.colorBackground, fragment.lastColor, newColor);
    }

    AnimatorSet animatorSet = new AnimatorSet();

    animatorSet.play(backgroundAnimator);

    if (!ATHUtil.isWindowBackgroundDark(fragment.getActivity())) {
        int adjustedLastColor = ColorUtil.isColorLight(fragment.lastColor) ? ColorUtil.darkenColor(fragment.lastColor) : fragment.lastColor;
        int adjustedNewColor = ColorUtil.isColorLight(newColor) ? ColorUtil.darkenColor(newColor) : newColor;
        Animator subHeaderAnimator = ViewUtil.createTextColorTransition(fragment.playerQueueSubHeader, adjustedLastColor, adjustedNewColor);
        animatorSet.play(subHeaderAnimator);
    }

    animatorSet.setDuration(ViewUtil.MUSIC_ANIM_TIME);
    return animatorSet;
}
 

public void animate(View action, View view) {

        view.bringToFront();
        view.setVisibility(View.VISIBLE);

        if (action == null)
            return;

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {

            if (!action.isAttachedToWindow() || !view.isAttachedToWindow())
                return;

            // finding X and Y co-ordinates
            int[] coordinateAction = {0, 0};
            int[] coordinateView = {0, 0};
            action.getLocationInWindow(coordinateAction);
            view.getLocationInWindow(coordinateView);
            int cx = (coordinateAction[0] + action.getWidth() / 2);
            int cy = (0 - coordinateView[1] + coordinateAction[1] + action.getHeight() / 2);

            // to find  radius when icon is tapped for showing layout
            int startRadius = 0;
            int endRadius = Math.max(view.getWidth() + cx, view.getHeight() + cy);

            // performing circular reveal when icon will be tapped
            Animator animator = ViewAnimationUtils.createCircularReveal(view, cx, cy, startRadius, endRadius);
            animator.setInterpolator(new AccelerateDecelerateInterpolator());
            animator.setDuration(350);

            // to show the layout when icon is tapped
            animator.start();
        }
    }
 

/**
 * 带水波动画的Activity跳转
 */
@SuppressLint("NewApi")
protected void navigateWithRippleCompat(final Activity activity, final Intent intent,
                                        final View triggerView, @ColorRes int color) {

    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
        ActivityOptionsCompat option = ActivityOptionsCompat.makeClipRevealAnimation(triggerView, 0, 0,
                triggerView.getMeasuredWidth(), triggerView.getMeasuredHeight());
        ActivityCompat.startActivity(activity, intent, option.toBundle());

        return;
    }

    int[] location = new int[2];
    triggerView.getLocationInWindow(location);
    final int cx = location[0] + triggerView.getWidth() / 2;
    final int cy = location[1] + triggerView.getHeight() / 2;
    final ImageView view = new ImageView(activity);
    view.setImageResource(color);
    final ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
    int w = decorView.getWidth();
    int h = decorView.getHeight();
    decorView.addView(view, w, h);
    int finalRadius = (int) Math.sqrt(w * w + h * h) + 1;
    Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, 0, finalRadius);
    anim.setDuration(500);
    anim.addListener(new AnimatorListenerAdapter() {
        @Override
        public void onAnimationEnd(Animator animation) {
            super.onAnimationEnd(animation);

            activity.startActivity(intent);
            activity.overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
            decorView.postDelayed(() -> decorView.removeView(view), 500);
        }
    });
    anim.start();
}
 

public AnimatorSet createDefaultColorChangeAnimatorSet(int newColor) {
    Animator backgroundAnimator;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        int topMargin = fragment.getResources().getDimensionPixelSize(R.dimen.status_bar_padding);
        //noinspection ConstantConditions
        int x = (int) (fragment.playbackControlsFragment.playPauseFab.getX() + fragment.playbackControlsFragment.playPauseFab.getWidth() / 2 + fragment.playbackControlsFragment.getView().getX());
        int y = (int) (topMargin + fragment.playbackControlsFragment.playPauseFab.getY() + fragment.playbackControlsFragment.playPauseFab.getHeight() / 2 + fragment.playbackControlsFragment.getView().getY());
        float startRadius = Math.max(fragment.playbackControlsFragment.playPauseFab.getWidth() / 2, fragment.playbackControlsFragment.playPauseFab.getHeight() / 2);
        float endRadius = Math.max(fragment.colorBackground.getWidth(), fragment.colorBackground.getHeight());
        fragment.colorBackground.setBackgroundColor(newColor);
        backgroundAnimator = ViewAnimationUtils.createCircularReveal(fragment.colorBackground, x, y, startRadius, endRadius);
    } else {
        backgroundAnimator = ViewUtil.createBackgroundColorTransition(fragment.colorBackground, fragment.lastColor, newColor);
    }

    AnimatorSet animatorSet = new AnimatorSet();

    animatorSet.play(backgroundAnimator);

    if (!ATHUtil.isWindowBackgroundDark(fragment.getActivity())) {
        int adjustedLastColor = ColorUtil.isColorLight(fragment.lastColor) ? ColorUtil.darkenColor(fragment.lastColor) : fragment.lastColor;
        int adjustedNewColor = ColorUtil.isColorLight(newColor) ? ColorUtil.darkenColor(newColor) : newColor;
        Animator subHeaderAnimator = ViewUtil.createTextColorTransition(fragment.playerQueueSubHeader, adjustedLastColor, adjustedNewColor);
        animatorSet.play(subHeaderAnimator);
    }

    animatorSet.setDuration(ViewUtil.PHONOGRAPH_ANIM_TIME);
    return animatorSet;
}
 

/**
 * 由满向中间收缩，直到隐藏。
 */
@SuppressLint("NewApi")
public static void hide(final View myView, float endRadius, long durationMills) {
    if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
        myView.setVisibility(View.INVISIBLE);
        return;
    }

    int cx = (myView.getLeft() + myView.getRight()) / 2;
    int cy = (myView.getTop() + myView.getBottom()) / 2;
    int w = myView.getWidth();
    int h = myView.getHeight();

    // 勾股定理 & 进一法
    int initialRadius = (int) Math.sqrt(w * w + h * h) + 1;

    Animator anim =
        ViewAnimationUtils.createCircularReveal(myView, cx, cy, initialRadius, endRadius);
    anim.setDuration(durationMills);
    anim.addListener(new AnimatorListenerAdapter() {
        @Override
        public void onAnimationEnd(Animator animation) {
            super.onAnimationEnd(animation);
            myView.setVisibility(View.INVISIBLE);
        }
    });

    anim.start();
}
 

/**
 * Create a simple circular reveal from a given start view to it's target view.
 * This reveal will start from the start view's boundaries until it fills the target view.
 *
 * @param center The center x and y coordinates of the start circle.
 * @param width The initial width of the view's coordinates.
 * @param targetView The target view which will be displayed once the reveal is done.
 * @param interpolator The interpolator to use.
 * @return The created circular reveal.
 */
@NonNull
public static Animator createCircularReveal(@NonNull Point center, int width,
                                            @NonNull View targetView,
                                            @NonNull Interpolator interpolator) {
    final Animator circularReveal = ViewAnimationUtils.createCircularReveal(targetView,
            center.x, center.y, width, (float) Math.hypot(center.x, center.y));
    circularReveal.setInterpolator(interpolator);
    return circularReveal;
}