chore：微信小程序自定义标题已经可以开始展示了

pages_tool/vr/index.vue

@@ -1,6 +1,6 @@
 <template>
 	<view :style="themeColor" class="vr-page">
-		<web-view :src="src" class="vr-webview" @titleUpdate="updateNavbarTitle"></web-view>
+		<web-view :src="src" class="vr-webview" @load="onWebViewLoad"></web-view>
 	</view>
 </template>
 
@@ -27,17 +27,24 @@ export default {
 		});
 	},
 	onShow() {
-		this.updateNavbarTitle();
+		if (this.title) {
+			uni.setNavigationBarTitle({ title: this.title });
+		}
 	},
 	watch: {
 		title(newVal) {
-			this.updateNavbarTitle(newVal);
+			if (newVal) {
+				uni.setNavigationBarTitle({ title: newVal });
+			}
 		}
 	},
 	methods: {
-		updateNavbarTitle(newTitle) {
-			const title = newTitle ?? this.title;
-			uni.setNavigationBarTitle({title});
+		onWebViewLoad() {
+			if (this.title) {
+				setTimeout(() => {
+					uni.setNavigationBarTitle({ title: this.title });
+				}, 100);
+			}
 		}
 	}	
 };