fix: 数据格式null

lib/models/video/play/url.dart

@@ -128,7 +128,8 @@ class VideoItem {
   VideoItem.fromJson(Map<String, dynamic> json) {
     id = json['id'];
     baseUrl = json['baseUrl'];
-    backupUrl = json['backupUrl'].toList().first;
+    backupUrl =
+        json['backupUrl'] != null ? json['backupUrl'].toList().first : '';
     bandWidth = json['bandWidth'];
     mimeType = json['mime_type'];
     codecs = json['codecs'];
@@ -179,7 +180,8 @@ class AudioItem {
   AudioItem.fromJson(Map<String, dynamic> json) {
     id = json['id'];
     baseUrl = json['baseUrl'];
-    backupUrl = json['backupUrl'].toList().first;
+    backupUrl =
+        json['backupUrl'] != null ? json['backupUrl'].toList().first : '';
     bandWidth = json['bandWidth'];
     mimeType = json['mime_type'];
     codecs = json['codecs'];

lib/pages/dynamics/widgets/article_panel.dart

@@ -42,13 +42,17 @@ Widget articlePanel(item, context, {floor = 1}) {
               .copyWith(fontWeight: FontWeight.bold),
         ),
         const SizedBox(height: 2),
-        if (item.modules.moduleDynamic.major.opus.summary.text != 'undefined')
+        if (item.modules.moduleDynamic.major.opus.summary.text !=
+            'undefined') ...[
           Text(
             item.modules.moduleDynamic.major.opus.summary.richTextNodes.first
                 .text,
             maxLines: 4,
+            style: const TextStyle(height: 1.55),
             overflow: TextOverflow.ellipsis,
           ),
+          const SizedBox(height: 2),
+        ],
         picWidget(item, context)
       ],
     ),

lib/pages/dynamics/widgets/pic_panel.dart

@@ -44,27 +44,25 @@ Widget picWidget(item, context) {
       double maxWidth = box.maxWidth;
       double aspectRatio = 1.0;
       double origAspectRatio = 0.0;
-      double crossCount = len == 1
+      double crossCount = 3;
-          ? 1
-          : len < 3
-              ? 2
-              : 3;
 
       double height = 0.0;
       if (len == 1) {
-        origAspectRatio =
+        try {
-            aspectRatio = pictures.first.width / pictures.first.height;
+          origAspectRatio =
+              aspectRatio = pictures.first.width / pictures.first.height;
+        } catch (_) {}
         if (aspectRatio < 0.4) {
           aspectRatio = 0.4;
         }
-        height = pictures.first.height * maxWidth / pictures.first.width;
         if (origAspectRatio < 0.5 || pictures.first.width < 1920) {
           crossCount = 2;
           height = maxWidth / 2 / aspectRatio;
         }
       } else {
         aspectRatio = 1;
-        height = maxWidth / crossCount * ((len / crossCount).ceil()) + 6;
+        height =
+            maxWidth / crossCount * ((len + crossCount - 1) ~/ crossCount) + 6;
       }
       return Container(
         padding: const EdgeInsets.only(top: 4),

lib/pages/searchPanel/controller.dart

@@ -56,9 +56,19 @@ class SearchPanelController extends GetxController {
     // 匹配输入内容，如果是AV、BV号且有结果 直接跳转详情页
     Map matchRes = IdUtils.matchAvorBv(input: keyword);
     List matchKeys = matchRes.keys.toList();
-    String bvid = resultList.first.bvid;
+    String? bvid;
+    try {
+      bvid = resultList.first.bvid;
+    } catch (_) {
+      bvid = null;
+    }
     // keyword 可能输入纯数字
-    int aid = resultList.first.aid;
+    int? aid;
+    try {
+      aid = resultList.first.aid;
+    } catch (_) {
+      aid = null;
+    }
     if (matchKeys.isNotEmpty && searchType == SearchType.video ||
         aid.toString() == keyword) {
       String heroTag = Utils.makeHeroTag(bvid);