图片更新需重新下载

lib/downloader.js

@@ -40,6 +40,24 @@ export default class Dowloader {
         resolve(url);
         return;
       }
+      if (!lru) {
+        // 无 lru 情况下直接判断 临时文件是否存在，不存在重新下载
+        wx.getFileInfo({
+          filePath: url,
+          success: () => {
+            resolve(url);
+          },
+          fail: () => {
+            downloadFile(url, lru).then((path) => {
+              resolve(path);
+            }, () => {
+              reject();
+            });
+          },
+        })
+        return
+      }
+
       const file = getFile(url);
 
       if (file) {
@@ -79,7 +97,9 @@ function downloadFile(url, lru) {
           reject();
           return;
         }
-        const { tempFilePath } = res;
+        const {
+          tempFilePath
+        } = res;
         wx.getFileInfo({
           filePath: tempFilePath,
           success: (tmpRes) => {

painter.js

@@ -234,11 +234,16 @@ Component({
         downloader.download(newVal.url, this.properties.LRU).then((path) => {
           doView.originUrl = doView.url
           doView.url = path
+          this.reDraw(doView, callback, isMoving)
         })
-      };
+      } else {
         (newVal && newVal.text && doView.text && newVal.text !== doView.text) && (doView.text = newVal.text);
         (newVal && newVal.content && doView.content && newVal.content !== doView.content) && (doView.content = newVal.content);
+        this.reDraw(doView, callback, isMoving)
+      }
+    },
 
+    reDraw(doView, callback, isMoving) {
       const draw = {
         width: this.currentPalette.width,
         height: this.currentPalette.height,