如何將一個子元素值放入 Android 中的 ArrayList 中？

Question

我對標記所有元素的 XmlPullParser 事件有困難，但是如何將一個子元素存儲到 ArrayList 中？

這是我的 xml 文件：

<site>
    <name>Brake and Break</name>
    <link>https://sampleactivity.000webhostapp.com/lesson_1.mp3</link>
        <set>When teaching my daughter how to drive, I told her if she didn't hit the brake in time she would break the car's side mirror.</set>
        <set>You shouldn’t brake as often as you do. You are going to break your car’s brakes.</set>
        <set>I think this relationship is moving too fast for me. Maybe it's best to just hit the brake than to completely break up.</set>
    <image>https://sampleactivity.000webhostapp.com/stckOvflw.png</image>
</site>

在我的 xml 文件中，我有元素名稱SET那么如何將所有設置的元素和屬性存儲到數組列表中？

這是我的 xmlpullparser.java 代碼：

switch (eventType) {
                case XmlPullParser.START_TAG:

                    if (tagname.equalsIgnoreCase(KEY_SITE)) {

                        curStackSite = new StackSite();
                    }
                    break;


                case XmlPullParser.TEXT:

                    curText = xpp.getText();
                    break;


                case XmlPullParser.END_TAG:
                    if (tagname.equalsIgnoreCase(KEY_SITE)) {

                        stackSites.add(curStackSite);
                    } else if (tagname.equalsIgnoreCase(KEY_NAME)) {

                        curStackSite.setName(curText);
                    } else if (tagname.equalsIgnoreCase(KEY_LINK)) {

                        curStackSite.setLink(curText);
                    } else if (tagname.equalsIgnoreCase(KEY_SET)) {
                        ArrayList<String> wew = new ArrayList<String>();
                        wew.add(curText);
                        curStackSite.setAlAbout(wew); <--- How can I store all element to arraylist here?
                        curStackSite.setSet(curText);
                    } else if (tagname.equalsIgnoreCase(KEY_IMAGE_URL)) {

                        curStackSite.setImgUrl(curText);
                    }
                    break;

                default:
                    break;
            }

我已經嘗試過對我們進行 dom 解析，但在我的代碼中仍然沒有太大的作用。

更新：

這是我的堆棧站點值：

public class StackSite {
private String name;
private String link;
private String about;
private List<String> AlAbout;
private String id;

public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}

public String getLink() {
    return link;
}
public void setLink(String link) {
    this.link = link;
}

public String getAbout() {
    return about;
}
public void setAbout(String about) {this.about = about;}

public List<String> getAlAbout() {
    return AlAbout;
}
public void setAlAbout(List<String> AlAbout) {this.AlAbout = AlAbout;}

@Override
public String toString() {
    return "StackSite [name=" + name + ", link=" + link + ", about="
            + about + ", Array sets=" + AlAbout + "]";
}
}

Answer 1

如果StackSite class 有這樣的成員：

List<String> allSets;

allSets的構造函數將StackSite初始化為一個空列表：

allSets = new ArrayList<>();

然后在END_TAG情況下tagName.equalsIgnoreCase(KEY_SET)您只需添加設置文本：

curStackSite.allSets.add(curText);

將為遇到的每個<set>…</set>在allSets列表中添加一個單獨的條目。

在解析StackSite的allSets列表成員結束時，包含 0 個或多個集合內容條目。

至於屬性，您可能希望為包含String集文本和屬性字段的StackSiteSet創建一個新的 class，而不是將集合視為字符串。

因此，您對</set>的END_TAG處理應如下所示：

} else if (tagname.equalsIgnoreCase(KEY_SET)) {
    // Get the list and add another element to it.
    curStackSite.getAlAbout().add(curText);
}