解决微信小程序首页空白问题。

pages-subpackage/list/search/search.nvue

@@ -155,7 +155,12 @@
 			})
 			// #endif
 
-			this.searchText = getApp().globalData.searchText;
+			try {
+				const app = getApp({ allowDefault: true });
+				this.searchText = app && app.globalData ? app.globalData.searchText : '';
+			} catch (e) {
+				this.searchText = '';
+			}
 		},
 		computed: {
 			associativeShow() {
@@ -298,7 +303,14 @@
 				this.loadList(item.title);
 			},
 			loadList(text = '') {
-				getApp().globalData.searchText = text;
+				try {
+					const app = getApp({ allowDefault: true });
+					if (app && app.globalData) {
+						app.globalData.searchText = text;
+					}
+				} catch (e) {
+					// 静默失败
+				}
 				uni.switchTab({
 					url:'/pages/list/list'
 				})
@@ -318,7 +330,14 @@
 					})
 				} else {
 					this.associativeList.length = 0;
-					getApp().globalData.searchText = '';
+					try {
+						const app = getApp({ allowDefault: true });
+						if (app && app.globalData) {
+							app.globalData.searchText = '';
+						}
+					} catch (e) {
+						// 静默失败
+					}
 				}
 			}, 100)
 		}