fix(mp-toutiao): 修复组合式父子组件 inject 失效的问题

packages/uni-mp-toutiao/src/runtime/componentLifetimes.ts

@@ -18,12 +18,14 @@ import {
 import {
   $createComponent,
   $destroyComponent,
+  findVmByVueId,
   initComponentInstance,
   initMocks,
   initRefs,
   initVueIds,
 } from '@dcloudio/uni-mp-core'
 import { ON_READY } from '@dcloudio/uni-shared'
+import { instances } from './parseComponentOptions'
 
 const fixAttached = __PLATFORM__ === 'mp-toutiao'
 
@@ -57,6 +59,30 @@ export function initLifetimes({
       mpInstance.route = mpInstance.__route__
     }
 
+    if (__PLATFORM__ === 'mp-toutiao') {
+      // 在创建 Vue 组件实例之前，先查找父组件，以支持组合式 API 的 inject
+      if (mpType === 'component') {
+        const webviewId = mpInstance.__webviewId__ + ''
+        const vuePid = relationOptions.vuePid
+
+        let parentVm
+        if (vuePid) {
+          // 尝试从页面查找父组件
+          const pageVm = instances[webviewId + '_0'] as ComponentPublicInstance
+          if (pageVm) {
+            parentVm = findVmByVueId(pageVm, vuePid)
+          }
+        } else {
+          // 如果 vuePid 不存在，则认为当前组件的父是页面
+          parentVm = instances[webviewId + '_0']
+        }
+
+        if (parentVm) {
+          relationOptions.parent = parentVm
+        }
+      }
+    }
+
     const props = findPropsData(properties, mpType === 'page')
 
     this.$vm = $createComponent(