From 5714e649e0e4daa5316d29d0b430daf9654bc76a Mon Sep 17 00:00:00 2001
From: qiang <guoshengqiang@live.com>
Date: Tue, 25 Jun 2019 13:07:20 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E8=A7=A3=E5=86=B3H5=E7=AB=AFuni.preview?=
 =?UTF-8?q?Image=E6=8E=A5=E5=8F=A3current=E5=8F=82=E6=95=B0=E4=B8=BA?=
 =?UTF-8?q?=E7=A9=BA=E6=97=B6=E6=8A=A5=E9=94=99=E7=9A=84=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/core/helpers/protocol/media/preview-image.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/core/helpers/protocol/media/preview-image.js b/src/core/helpers/protocol/media/preview-image.js
index 43e87e183..cd49f0581 100644
--- a/src/core/helpers/protocol/media/preview-image.js
+++ b/src/core/helpers/protocol/media/preview-image.js
@@ -21,9 +21,12 @@ export const previewImage = {
   current: {
     type: [String, Number],
     validator (value, params) {
-      // 假值都会被转换为数字 0 无需再做判定
-      const index = Number(value)
-      params.current = isNaN(index) ? getRealPath(value) : index
-    }
+      if (typeof value === 'number') {
+        params.current = value > 0 && value < params.urls.length ? value : 0
+      } else if (typeof value === 'string' && value) {
+        params.current = getRealPath(value)
+      }
+    },
+    default: 0
   }
 }
-- 
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