fix:17433 无网络时-进入电子报，不该展示分享按钮

@@ -148,18 +148,19 @@ export struct ENewspaperPageComponent {
                 this.calendarDialogController.close()
               }
           })
-
-          Image($r('app.media.icon_share'))
-            .height($r('app.float.top_arrow_size'))
-            .width($r('app.float.top_arrow_size'))
-            .alignRules({
-              right: { anchor: "__container__", align: HorizontalAlign.End },
-              center: { anchor: "__container__", align: VerticalAlign.Center }
-            })
-            .id('e_newspaper_share')
-            .onClick(() => {
-              ToastUtils.showToast('分享为公共方法，待开发', 1000);
-          })
+          if (this.newspaperListBean && this.newspaperListBean.list && this.newspaperListBean.list.length > 0) {
+            Image($r('app.media.icon_share'))
+              .height($r('app.float.top_arrow_size'))
+              .width($r('app.float.top_arrow_size'))
+              .alignRules({
+                right: { anchor: "__container__", align: HorizontalAlign.End },
+                center: { anchor: "__container__", align: VerticalAlign.Center }
+              })
+              .id('e_newspaper_share')
+              .onClick(() => {
+                ToastUtils.showToast('分享为公共方法，待开发', 1000);
+              })
+          }
         }
         .margin({ left: $r('app.float.margin_16'), right: $r('app.float.margin_16') })
         .height($r('app.float.top_bar_height'))