1、创建xml布局文件

第一个页面内有一个文本和一个按钮，使用DependentLayout布局，通过Text和Button组件来实现，其中vp和fp分别表示虚拟像素和字体像素。“ability_main.xml”的示例代码如下：

<?xml version="1.0" encoding="utf-8"?>
<DependentLayout
   xmlns:ohos="http://schemas.huawei.com/res/ohos"
   ohos:height="match_parent"
   ohos:width="match_parent">

   <Text
       ohos:id="$+id:text"
       ohos:width="match_content"
       ohos:height="match_content"
       ohos:text="Hello World"
       ohos:text_color="#000000"
       ohos:text_size="32fp"
       ohos:center_in_parent="true"/>
   <Button
       ohos:id="$+id:button"
       ohos:width="match_content"
       ohos:height="match_content"
       ohos:text="Next"
       ohos:text_size="19fp"
       ohos:text_color="#FFFFFF"
       ohos:top_padding="8vp"
       ohos:bottom_padding="8vp"
       ohos:right_padding="70vp"
       ohos:left_padding="70vp"
       ohos:center_in_parent="true"
       ohos:below="$id:text"
       ohos:background_element="$graphic:background_button"
       ohos:margin="10vp"/>

</DependentLayout>

按钮的背景是蓝色胶囊样式，可以通过graphic目录下的XML文件来设置。

右键点击“graphic”文件夹，选择“New > File”，命名为“background_button.xml”，单击回车键。

<?xml version="1.0" encoding="utf-8"?>
<shape
   xmlns:ohos="http://schemas.huawei.com/res/ohos"
   ohos:shape="rectangle">
   <corners
       ohos:radius="100"/>
   <solid
       ohos:color="#007DFF"/>
</shape>

2、创建主程序

package com.sudojava.firstdemo.slice;

import com.sudojava.firstdemo.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;

public class MainAbilitySlice extends AbilitySlice {
   @Override
   public void onStart(Intent intent) {
       super.onStart(intent);
       super.setUIContent(ResourceTable.Layout_ability_main);
       Button button = (Button) findComponentById(ResourceTable.Id_button);

       // 点击按钮跳转至第二个页面
       button.setClickedListener(listener -> present(new SecondAbilitySlice(), new Intent()));
     
  }

   @Override
   public void onActive() {
       super.onActive();
  }

   @Override
   public void onForeground(Intent intent) {
       super.onForeground(intent);
  }
}

3、创建另一个界面

package com.sudojava.firstdemo.slice;

import com.sudojava.firstdemo.MainAbility;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.colors.RgbColor;
import ohos.agp.components.DependentLayout;
import ohos.agp.components.Text;
import ohos.agp.components.element.ShapeElement;
import ohos.agp.utils.Color;

public class SecondAbilitySlice extends AbilitySlice {
   @Override
   protected void onStart(Intent intent) {
       super.onStart(intent);
       //声明布局
       DependentLayout layout = new DependentLayout(this);
       //设置布局的宽度和高度
       layout.setWidth(DependentLayout.LayoutConfig.MATCH_PARENT);
       layout.setHeight(DependentLayout.LayoutConfig.MATCH_CONTENT);

       ShapeElement shapeElement = new ShapeElement();
       shapeElement.setRgbColor(new RgbColor(255,255,255));
       layout.setBackground(shapeElement);

       Text text = new Text(this);
       text.setText("Hi Here");
       text.setWidth(DependentLayout.LayoutConfig.MATCH_PARENT);
       text.setTextSize(100);
       text.setTextColor(Color.BLACK);


       // 设置文本的布局
       DependentLayout.LayoutConfig textConfig = new DependentLayout.LayoutConfig(DependentLayout.LayoutConfig.MATCH_CONTENT, DependentLayout.LayoutConfig.MATCH_CONTENT);
       textConfig.addRule(DependentLayout.LayoutConfig.CENTER_IN_PARENT);
       text.setLayoutConfig(textConfig);
       layout.addComponent(text);
       super.setUIContent(layout);


  }
}

4、运行结果如下

以上便是与大家分享的内容，如果您有什么问题，都可以留言讨论哦~