短視訊程式原始碼，PageSlider實現滑動頁面

短視訊程式原始碼，PageSlider實現滑動頁面的相關程式碼

TestPagerProvider.java

package com.testruiwang.myapplication3.slice;
import ohos.agp.colors.RgbColor;
import ohos.agp.components.*;
import ohos.agp.components.element.ShapeElement;
import ohos.agp.utils.Color;
import ohos.agp.utils.TextAlignment;
import java.util.List;
public class TestPagerProvider extends PageSliderProvider {
    // 資料來源，每個頁面對應list中的一項
    private List<DataItem> list;
    public TestPagerProvider(List<DataItem> list) {
        this.list = list;
    }
    @Override
    public int getCount() {
        return list.size();
    }
    @Override
    public Object createPageInContainer(ComponentContainer componentContainer, int i) {
        final DataItem data = list.get(i);
        Text label = new Text(null);
        label.setTextAlignment(TextAlignment.CENTER);
        label.setLayoutConfig(
                new StackLayout.LayoutConfig(
                        ComponentContainer.LayoutConfig.MATCH_PARENT,
                        ComponentContainer.LayoutConfig.MATCH_PARENT
                ));
        label.setText(data.mText);
        label.setTextColor(Color.BLACK);
        label.setTextSize(50);
        ShapeElement element = new ShapeElement();
        element.setRgbColor(RgbColor.fromArgbInt(Color.getIntColor("#AFEEEE")));
        label.setBackground(element);
        componentContainer.addComponent(label);
        return label;
    }
    @Override
    public void destroyPageFromContainer(ComponentContainer componentContainer, int i, Object o) {
        componentContainer.removeComponent((Component) o);
    }
    @Override
    public boolean isPageMatchToObject(Component component, Object o) {
        return true;
    }
    //資料實體類
    public static class DataItem{
        String mText;
        public DataItem(String txt) {
            mText = txt;
        }
    }
}

MainAbilitySlice.java

 @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_main);
        initPageSlider();
    }
    private void initPageSlider() {
        PageSlider pageSlider = (PageSlider) findComponentById(ResourceTable.Id_page_slider);
        pageSlider.setProvider(new TestPagerProvider(getData()));
    }
    private ArrayList<TestPagerProvider.DataItem> getData() {
        ArrayList<TestPagerProvider.DataItem> dataItems = new ArrayList<>();
        dataItems.add(new TestPagerProvider.DataItem("Page A"));
        dataItems.add(new TestPagerProvider.DataItem("Page B"));
        dataItems.add(new TestPagerProvider.DataItem("Page C"));
        dataItems.add(new TestPagerProvider.DataItem("Page D"));
        return dataItems;
    }

ability_main.xml

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:alignment="center"
    ohos:orientation="vertical">
    <PageSlider
        ohos:id="$+id:page_slider"
        ohos:height="300vp"
        ohos:width="300vp"
        ohos:layout_alignment="horizontal_center"/>
</DirectionalLayout>

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