【鸿蒙 HarmonyOS】界面跳转 ( Page Ability 的 action 标识 | Page Ability 之间的界面跳转及传递数据 | 鸿蒙工程下创建 Module

【鸿蒙 HarmonyOS】界面跳转 ( Page Ability 的 action 标识 | Page Ability 之间的界面跳转及传递数据 | 鸿蒙工程下创建 Module | 代码示例 )（三）

2022-01-28 232

版权

本文内容由阿里云实名注册用户自发贡献，版权归原作者所有，阿里云开发者社区不拥有其著作权，亦不承担相应法律责任。具体规则请查看《阿里云开发者社区用户服务协议》和《阿里云开发者社区知识产权保护指引》。如果您发现本社区中有涉嫌抄袭的内容，填写侵权投诉表单进行举报，一经查实，本社区将立刻删除涉嫌侵权内容。

简介： 【鸿蒙 HarmonyOS】界面跳转 ( Page Ability 的 action 标识 | Page Ability 之间的界面跳转及传递数据 | 鸿蒙工程下创建 Module | 代码示例 )（三）

四、代码示例

代码展示顺序 :

① Ability 配置文件 ;

② 主界面 Page Ability 代码 ;

③ 主界面 Page Ability 对应的 AbilitySlice 代码 ;

④ 主界面 Page Ability 对应的 AbilitySlice 对应的布局文件代码 ;

⑤ 跳转目标界面 Page Ability 代码 ;

⑥ 跳转目标界面 Page Ability 对应的 AbilitySlice 代码 ;

⑦ 跳转目标界面 Page Ability 对应的 AbilitySlice 对应的布局文件代码 ;

config.json 完整配置文件 : 主要是查看 Page Ability 的 action 是如何配置的 ;

{
  "app": {
    "bundleName": "com.example.harmony",
    "vendor": "example",
    "version": {
      "code": 1,
      "name": "1.0"
    },
    "apiVersion": {
      "compatible": 3,
      "target": 4,
      "releaseType": "Beta1"
    }
  },
  "deviceConfig": {},
  "module": {
    "package": "com.example.ability",
    "name": ".MyApplication",
    "deviceType": [
      "phone"
    ],
    "distro": {
      "deliveryWithInstall": true,
      "moduleName": "ability",
      "moduleType": "feature"
    },
    "abilities": [
      {
        "orientation": "unspecified",
        "visible": true,
        "name": "com.example.ability.MainAbility",
        "icon": "$media:icon",
        "description": "$string:mainability_description",
        "label": "ability",
        "type": "page",
        "launchType": "standard"
      },
      {
        "skills":[
          {
            "actions":[
              "ability.intent.MainAbility2"
            ]
          }
        ],
        "orientation": "unspecified",
        "visible": true,
        "name": "com.example.ability.MainAbility2",
        "icon": "$media:icon",
        "description": "$string:mainability_description",
        "label": "ability",
        "type": "page",
        "launchType": "standard"
      }
    ]
  }
}

MainAbility 主界面 Page Ability :

package com.example.ability;
import com.example.ability.slice.MainAbilitySlice;
import ohos.aafwk.ability.Ability;
import ohos.aafwk.content.Intent;
public class MainAbility extends Ability {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setMainRoute(MainAbilitySlice.class.getName());
    }
}

MainAbilitySlice 显示内容 :

package com.example.ability.slice;
import com.example.ability.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Button;
import ohos.agp.components.Component;
public class MainAbilitySlice extends AbilitySlice {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_main);
        // 获取 XML 布局中的 Button 按钮
        Button button = (Button) findComponentById(ResourceTable.Id_button);
        // 设置 Button 按钮点击事件
        button.setClickedListener(new Component.ClickedListener() {
            @Override
            public void onClick(Component component) {
                // 初始化传递的 Intent 意图对象
                Intent intent = new Intent();
                // 设置跳转的目标 Page Ability 的 action 标识
                intent.setAction("ability.intent.MainAbility2");
                // 设置传递的数据
                intent.setParam("DATA", 888);
                // 跳转到目标 Page Ability
                startAbility(intent);
            }
        });
    }
    @Override
    public void onActive() {
        super.onActive();
    }
    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

MainAbilitySlice 布局文件 ability_main.xml 内容 :

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:orientation="vertical">
    <Text
        ohos:id="$+id:text"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:background_element="$graphic:background_ability_main"
        ohos:layout_alignment="horizontal_center"
        ohos:text="页面 1"
        ohos:text_size="50"
        />
    <Button
        ohos:id="$+id:button"
        ohos:height="match_parent"
        ohos:width="match_content"
        ohos:layout_alignment="bottom|horizontal_center"
        ohos:text="跳转到 2 页面"
        ohos:text_size="50"
        />
</DirectionalLayout>

MainAbility2 跳转目标界面 Page Ability :

package com.example.ability;
import com.example.ability.slice.MainAbilitySlice2;
import ohos.aafwk.ability.Ability;
import ohos.aafwk.content.Intent;
public class MainAbility2 extends Ability {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setMainRoute(MainAbilitySlice2.class.getName());
    }
}

MainAbilitySlice2 显示内容 :

package com.example.ability.slice;
import com.example.ability.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Text;
public class MainAbilitySlice2 extends AbilitySlice {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_main2);
        // 获取 Text 文字显示组件
        Text text = (Text) findComponentById(ResourceTable.Id_text);
        // 获取 Intent 中的数据 , 并显示到界面中
        text.setText("页面 2 数据 : " + intent.getIntParam("DATA", 0));
    }
    @Override
    public void onActive() {
        super.onActive();
    }
    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

MainAbilitySlice2 布局文件 ability_main2.xml 内容 :

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:orientation="vertical">
    <Text
        ohos:id="$+id:text"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:background_element="$graphic:background_ability_main"
        ohos:layout_alignment="horizontal_center"
        ohos:text="页面 2"
        ohos:text_size="50"
        />
</DirectionalLayout>