优化utils的toast

src/core/libs/utils.js

@@ -187,11 +187,24 @@ function toPage(url, options, type) {
     }
 }
 
+let toastTimer;
 function toast(title, options) {
-    uni.showToast({
-        ...{ title: title, icon: "none" },
-        ...options
-    });
+    if (typeof options === "undefined") {
+        options = {};
+    }
+    return new Promise((resolve, reject) => {
+        if (!options.duration) {
+            options.duration = 1500;
+        }
+        uni.showToast({
+            ...{ title: title, icon: "none" },
+            ...options
+        });
+        clearTimeout(toastTimer);
+        toastTimer = setTimeout(() => {
+            resolve();
+        }, options.duration);
+    })
 }
 
 function formatNumber(num, limit) {