Optimized UI.

Author: gnu4cn

package.json

@@ -1,6 +1,6 @@
 {
-  "name": "gitbook-reader-app",
-  "version": "0.6.2",
+  "name": "yet-another-gitbook-reader",
+  "version": "0.6.8",
   "author": "xfoss.com",
   "homepage": "https://gnu4cn.github.io/gitbook-reader/",
   "scripts": {

src/app/home/components/book-list.component.html

@@ -31,7 +31,8 @@
 
                 <!-- 操作 -->
                 <mat-card-actions fxLayout="row" fxLayoutGap="0px">
-                    <button mat-button *ngIf="book.recordList" (click)="openReadingRecordDialog(book)">
+                    <button mat-button *ngIf="book.recordList && book.recordList.length > 0" 
+                        (click)="openReadingRecordDialog(book)">
                             <ion-icon name="list-outline"></ion-icon>阅读记录
                     </button>
                     <button mat-button *ngIf="book.downloaded" (click)="openReadmeDialog(book.desc)">