main_layout.xml

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

    <Button
            ohos:id="$+id:list_button"
            ohos:width="200"
            ohos:height="300"
            ohos:left_margin="20"
            ohos:background_element="#FFF0F0F0"
            ohos:text="列表实例"
            ohos:center_in_parent="true"
            ohos:text_size="50"/>


</DependentLayout>