feat：启动广告页增加数据空判断

@@ -60,7 +60,7 @@ struct LaunchAdvertisingPage {
 
         Stack({alignContent:Alignment.Bottom}){
           Column(){
-            if(!(this.model.launchAdInfo[0].matInfo.matType == '1')){
+            if(this.model.launchAdInfo.length && !(this.model.launchAdInfo[0].matInfo.matType == '1')){
               //显示图片
               Image(this.model.launchAdInfo[0].matInfo.matImageUrl[0])
                 .width('100%')
@@ -100,7 +100,7 @@ struct LaunchAdvertisingPage {
           }
           .width('100%')
           .height('100%')
-          if(!(this.model.launchAdInfo[0].matInfo.startStyle == 1)){
+          if(this.model.launchAdInfo.length && !(this.model.launchAdInfo[0].matInfo.startStyle == 1)){
             //底部logo样式  按钮加载在背景展示图上
             Button(){
               Row(){
@@ -133,7 +133,7 @@ struct LaunchAdvertisingPage {
       .height('84%')
       .margin({top:'0'})
 
-      if(this.model.launchAdInfo[0].matInfo.startStyle == 1){
+      if(this.model.launchAdInfo.length && this.model.launchAdInfo[0].matInfo.startStyle == 1){
         //全屏样式，底部无logo  按钮放在原底部logo位置
         Button(){
           Row(){
@@ -176,17 +176,19 @@ struct LaunchAdvertisingPage {
   action(){
     //跳转 url   linkUrl   https://news.bjd.com.cn/2024/03/19/10724331.shtml
     // openType 端外 端内 打开
-    if (this.model.launchAdInfo[0].matInfo.openType == '2') {
-      //端外打开
+    if(this.model.launchAdInfo.length){
+      if (this.model.launchAdInfo[0].matInfo.openType == '2') {
+        //端外打开
 
-      ProcessUtils.jumpExternalWebPage(this.model.launchAdInfo[0].matInfo.linkUrl)
-      clearInterval(this.timer)
+        ProcessUtils.jumpExternalWebPage(this.model.launchAdInfo[0].matInfo.linkUrl)
+        clearInterval(this.timer)
 
-    }else {
-      //端内打开
-      ProcessUtils.gotoDefaultWebPage(this.model.launchAdInfo[0].matInfo.linkUrl)
-      clearInterval(this.timer)
+      }else {
+        //端内打开
+        ProcessUtils.gotoDefaultWebPage(this.model.launchAdInfo[0].matInfo.linkUrl)
+        clearInterval(this.timer)
 
+      }
     }
   }