无法在每个选项卡上显示多个数据：TabBarView

Question

我是个新手，现在当我尝试在 TabBarView 的每个选项卡上的 ListView 中显示多张卡片时，我收到此错误

" 控制器的长度 属性 (4) 与 TabBar 的标签 属性 中存在的标签数量 (5) 不匹配。"

这是我的代码，有没有办法做到这一点？

这是标签栏

child: TabBar(
                        tabs: [
                          Tab(child: Text("New", style: TextStyle(color: Colors.black),),),
                          Tab(child: Text("Indoor", style: TextStyle(color: Colors.black),),),
                          Tab(child: Text("Outdoor", style: TextStyle(color: Colors.black),),),
                          Tab(child: Text("Furniture", style: TextStyle(color: Colors.black),),),
                        ],
                      indicatorColor: Color.fromRGBO(230, 0, 49, 0.86),
                    ),

这是 TabBarView

child: TabBarView(
                      children:
                    [
                      //First tab

                      ListView(
                        children: [
                          Card(
                            clipBehavior: Clip.antiAlias,
                            elevation: 0.5,
                            shape: RoundedRectangleBorder(
                                borderRadius: BorderRadius.circular(12)),

                            child: Padding(
                              padding: const EdgeInsets.only(
                                  left: 0.0, top: 10.0, bottom: 0.0, right: 0.0),
                              child: InkWell(
                                onTap: () {

                                },
                                child: Column(
                                  mainAxisSize: MainAxisSize.min,
                                  crossAxisAlignment: CrossAxisAlignment.start,
                                  children: [
                                    Stack(alignment: Alignment.bottomCenter, children: [
                                      Padding(
                                        padding: const EdgeInsets.symmetric(horizontal: 15.0),
                                        child: Ink.image(
                                            height: 200,
                                            image: AssetImage('assets/images/kitchen.jpg'),
                                            fit: BoxFit.fitWidth),
                                      ),
                                    ]),
                                    ListTile(
                                      title: Text(
                                        "Project Name",
                                        style: TextStyle(
                                            color: Colors.black,
                                            fontSize: 20,
                                            fontWeight: FontWeight.bold),
                                      ),
                                      subtitle: Text(
                                        "Project details descriptions",
                                        style: TextStyle(
                                            fontWeight: FontWeight.w500,
                                            color: Colors.grey),
                                      ),
                                    ),
                                  ],
                                ),
                              ),
                            ),
                          ),
                        ],
                      ),


                    ListView(
                        children: [
                      Card(
                        clipBehavior: Clip.antiAlias,
                        elevation: 0.5,
                        shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(12)),

                        child: Padding(
                          padding: const EdgeInsets.only(
                              left: 0.0, top: 10.0, bottom: 0.0, right: 0.0),
                          child: InkWell(
                            onTap: () {

                            },
                            child: Column(
                              mainAxisSize: MainAxisSize.min,
                              crossAxisAlignment: CrossAxisAlignment.start,
                              children: [
                                Stack(alignment: Alignment.bottomCenter, children: [
                                  Padding(
                                    padding: const EdgeInsets.symmetric(horizontal: 15.0),
                                    child: Ink.image(
                                        height: 200,
                                        image: AssetImage('assets/images/food_tables.jpg'),
                                        fit: BoxFit.fitWidth),
                                  ),
                                ]),
                                ListTile(
                                  title: Text(
                                    "Project Name",
                                    style: TextStyle(
                                        color: Colors.black,
                                        fontSize: 20,
                                        fontWeight: FontWeight.bold),
                                  ),
                                  subtitle: Text(
                                    "Project details descriptions",
                                    style: TextStyle(
                                        fontWeight: FontWeight.w500,
                                        color: Colors.grey),
                                  ),
                                ),
                              ],
                            ),
                          ),
                        ),
                      ),
                        ],
                      ),
                     ],
                  ),

Answer 1

您有 4 个选项卡，但在 tabbarViews 中有 2 个列表视图。

对于解决方案，您必须删除 2 个选项卡，或者您可以在 tabbarview 中再添加 2 个小部件

TabBarView(children: [
    // 1.tab
    Container(),
    // 2.tab
    Container(),
    // 3.tab
    Container(),
    // 4.tab
    Container(),
  ]);