调整导航服务

src/service/app/navdata-service.ts

@@ -312,4 +312,31 @@ export default class NavDataService {
             return [];
         }
     }
+
+    /**
+     * 从导航数据栈中直接添加数据
+     * 
+     * @memberof NavDataService
+     */    
+    public addNavDataByOnly(curNavData:NavDataElement){
+        this.navDataStack.push(curNavData);
+    }
+
+    /**
+     * 从导航数据栈中直接删除数据
+     * 
+     * @memberof NavDataService
+     */    
+    public removeNavDataByTag(viewtag:string){
+        if(this.navDataStack.length >0){
+            let tempIndex:number = this.navDataStack.findIndex((element:NavDataElement) =>{
+                return Object.is(element.tag,viewtag);
+            })
+            let removeNavData = this.navDataStack.splice(tempIndex,1);
+            this.sessionStore.setItem('srfnavdata',JSON.stringify(this.navDataStack));
+            return removeNavData;
+        }else{
+            return null;
+        }
+    }
 }
\ No newline at end of file