HarmonyOS 学习路之开发基础——快速入门 (创建另一个页面)

import ohos.aafwk.ability.AbilitySlice;import ohos.aafwk.content.Intent;import ohos.agp.colors.RgbColor;import ohos.agp.components.DependentLayout;import ohos.agp.components.DependentLayout.LayoutConfig;import ohos.agp.components.Text;import ohos.agp.components.element.ShapeElement;import ohos.agp.utils.Color;
public class SecondAbilitySlice extends AbilitySlice {    @Override    public void onStart(Intent intent) {        super.onStart(intent);
        // 声明布局        DependentLayout myLayout = new DependentLayout(this);
        // 设置布局宽高        myLayout.setWidth(LayoutConfig.MATCH_PARENT);        myLayout.setHeight(LayoutConfig.MATCH_PARENT);
        // 设置布局背景为白色        ShapeElement background = new ShapeElement();        background.setRgbColor(new RgbColor(255, 255, 255));        myLayout.setBackground(background);
        // 创建一个文本        Text text = new Text(this);        text.setText("Hi there");        text.setWidth(LayoutConfig.MATCH_PARENT);        text.setTextSize(100);        text.setTextColor(Color.BLACK);
        // 设置文本的布局        DependentLayout.LayoutConfig textConfig = new DependentLayout.LayoutConfig(LayoutConfig.MATCH_CONTENT, LayoutConfig.MATCH_CONTENT);        textConfig.addRule(LayoutConfig.CENTER_IN_PARENT);        text.setLayoutConfig(textConfig);        myLayout.addComponent(text);        super.setUIContent(myLayout);    }}