AnimHelper.java 文件源码

@UiThread public static void dismissDialog(@NonNull DialogFragment dialogFragment, int duration, AnimatorListenerAdapter listenerAdapter) {
    Dialog dialog = dialogFragment.getDialog();
    if (dialog != null) {
        if (dialog.getWindow() != null) {
            View view = dialog.getWindow().getDecorView();
            if (view != null) {
                int centerX = view.getWidth() / 2;
                int centerY = view.getHeight() / 2;
                float radius = (float) Math.sqrt(view.getWidth() * view.getWidth() / 4 + view.getHeight() * view.getHeight() / 4);
                view.post(() -> {
                    if (ViewCompat.isAttachedToWindow(view)) {
                        Animator animator = ViewAnimationUtils.createCircularReveal(view, centerX, centerY, radius, 0);
                        animator.setDuration(duration);
                        animator.addListener(listenerAdapter);
                        animator.start();
                    } else {
                        listenerAdapter.onAnimationEnd(null);
                    }
                });
            }
        }
    } else {
        listenerAdapter.onAnimationEnd(null);
    }
}