fix: 修复方法调用问题

Author: Little-LittleProgrammer

packages/core/src/models/app.ts

@@ -108,8 +108,8 @@ export class LowCodeRoot extends Subscribe {
         // 根据屏幕大小计算出跟节点的font-size，用于rem样式的适配
         if (this.isH5()) {
             this.calcFontsize()
-            globalThis.removeEventListener('resize', this.calcFontsize);
-            globalThis.addEventListener('resize', this.calcFontsize); 
+            globalThis.removeEventListener('resize', this.calcFontsize.bind(this));
+            globalThis.addEventListener('resize', this.calcFontsize.bind(this)); 
         }
     }
 
@@ -177,6 +177,7 @@ export class LowCodeRoot extends Subscribe {
       }
 
     private calcFontsize() {
+        console.log('resize')
         const { width } = document.documentElement.getBoundingClientRect();
         const dpr = globalThis?.devicePixelRatio || 1
         this.setBodyFontSize(dpr);
@@ -222,7 +223,7 @@ export class LowCodeRoot extends Subscribe {
         this.clear()
         this.page = undefined;
         if (this.isH5()) {
-            globalThis.removeEventListener('resize', this.calcFontsize);
+            globalThis.removeEventListener('resize', this.calcFontsize.bind(this));
         }
     }