fix

src/utils/flexible.js

@@ -0,0 +1,48 @@
+import { getUniversalZoomLevel } from '@/utils/tools'
+
+let flexible = (designWidth, maxWidth,minWidth) =>{
+    var doc = document, win = window, docEl = doc.documentElement, remStyle = document.createElement("style"), tid;
+    designWidth = designWidth || 1920;
+    // maxWidth = maxWidth || 1920;
+    // minWidth = minWidth || 500;
+    // minWidth = minWidth || 1024;
+    function refreshRem() {
+        var width = docEl.getBoundingClientRect().width;
+        var height = docEl.getBoundingClientRect().height;
+		width = getUniversalZoomLevel() * width
+		height = getUniversalZoomLevel() * height
+		// width > maxWidth && (width = maxWidth);
+        // width < minWidth && (width = minWidth);
+		if(width >= 1024){
+			designWidth = 1920
+		}else{
+			designWidth = 375
+		}
+        var rem = Math.round(width * 10 / designWidth);
+		docEl.style.fontSize = rem+'px'
+        remStyle.innerHTML = 'html{font-size:' + rem + 'px;}';
+    }
+    //要等 wiewport 设置好后才能执行 refreshRem，不然 refreshRem 会执行2次；
+    refreshRem();
+    win.addEventListener("resize", function() {
+        clearTimeout(tid); //防止执行两次
+        tid = setTimeout(refreshRem, 300);
+    }, false);
+
+    win.addEventListener("pageshow", function(e) {
+        if (e.persisted) { // 浏览器后退的时候重新计算
+            clearTimeout(tid);
+            tid = setTimeout(refreshRem, 300);
+        }
+    }, false);
+
+    if (doc.readyState === "complete") {
+        doc.body.style.fontSize = "16px";
+    } else {
+        doc.addEventListener("DOMContentLoaded", function(e) {
+            doc.body.style.fontSize = "16px";
+        }, false);
+    }
+};
+
+export default flexible