鸿蒙OS 实现页面跳转

1. 打开第一个页面的“MainAbilitySlice.java”文件，重写onStart()方法添加按钮的响应逻辑，实现点击按钮跳转到下一页，示例代码如下：

   package com.example.myapplication.slice;
    
   import com.example.myapplication.ResourceTable;
   import ohos.aafwk.ability.AbilitySlice;
   import ohos.aafwk.content.Intent;
   import ohos.aafwk.content.Operation;
   import ohos.agp.components.*;
    
   public class MainAbilitySlice extends AbilitySlice {
    
       @Override
       public void onStart(Intent intent) {
           super.onStart(intent);
           super.setUIContent(ResourceTable.Layout_main_layout);
           Button button = (Button) findComponentById(ResourceTable.Id_button);
    
           if (button != null) {
               // 为按钮设置点击回调
               button.setClickedListener(new Component.ClickedListener() {
                   @Override
                   public void onClick(Component component) {
                   Intent secondIntent = new Intent();
                   // 指定待启动FA的bundleName和abilityName
                   Operation operation = new Intent.OperationBuilder()
                           .withDeviceId("")
                           .withBundleName("com.example.myapplication")
                           .withAbilityName("com.example.myapplication.SecondAbility")
                           .build();
                   secondIntent.setOperation(operation);
                   startAbility(secondIntent); // 通过AbilitySlice的startAbility接口实现启动另一个页面
                   }
               });
           }
       }
    
       @Override
       public void onActive() {
           super.onActive();
       }
    
       @Override
       public void onForeground(Intent intent) {
           super.onForeground(intent);
       }
   }

1. 再次运行项目，效果如图所示：