活动按钮状态流转

uni_modules/zebra-swiper/libs/slide/slideToClosest.js

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+/* eslint no-unused-vars: "off" */
+export default function slideToClosest(speed = this.params.speed, runCallbacks = true, internal, threshold = 0.5) {
+  const swiper = this;
+  let index = swiper.activeIndex;
+  const skip = Math.min(swiper.params.slidesPerGroupSkip, index);
+  const snapIndex = skip + Math.floor((index - skip) / swiper.params.slidesPerGroup);
+  const translate = swiper.rtlTranslate ? swiper.translate : -swiper.translate;
+
+  if (translate >= swiper.snapGrid[snapIndex]) {
+    const currentSnap = swiper.snapGrid[snapIndex];
+    const nextSnap = swiper.snapGrid[snapIndex + 1];
+
+    if (translate - currentSnap > (nextSnap - currentSnap) * threshold) {
+      index += swiper.params.slidesPerGroup;
+    }
+  } else {
+    const prevSnap = swiper.snapGrid[snapIndex - 1];
+    const currentSnap = swiper.snapGrid[snapIndex];
+
+    if (translate - prevSnap <= (currentSnap - prevSnap) * threshold) {
+      index -= swiper.params.slidesPerGroup;
+    }
+  }
+
+  index = Math.max(index, 0);
+  index = Math.min(index, swiper.slidesGrid.length - 1);
+  return swiper.slideTo(index, speed, runCallbacks, internal);
+}