2我需要一些关于此代码的帮助。我得到一个IndexOutOfBoundsException。我知道为什么,但我一直试图解决它。问题:eMain.getElementsByClass(“trA1”)。size()= 8和eMain.getElementsByClass(“trA2”)。size()= 7(大小非常多,但trA1总是大于trA2)。我需要添加每个元素和ArrayList作为add(trA1),添加(trA2),添加(trA1),添加(trA2)......(我正在使用for循环)但是当我得到到元素8,我得到异常,因为没有trA2元素8.我尝试了一个If语句来检查元素是否为null或“”但我仍然得到异常。任何想法。
// game list data
if (!eMain.equals("")) {
for (int i=0; i < eMain.getElementsByClass("trA1").size(); i++) {
// check if AsyncTask was cancelled
if (isCancelled())
break;
if (eMain.getElementsByClass("trA1").select("strong").get(i).text() != null) {
// get string data
String titleA1 = eMain.getElementsByClass("trA1").select("strong").get(i).text();
String achAmountA1 = eMain.getElementsByClass("trA1").select("td[align]").get(mAchAmountCounter).text();
String gsAmountA1 = eMain.getElementsByClass("trA1").select("td[align]").get(mGsAmountCounter).text();
String aPageLinkA1 = eMain.getElementsByClass("trA1").select("td a").get(mPageLinkCounter).attr("abs:href");
String iconSrcA1 = eMain.getElementsByClass("trA1").select("td a img").get(i).attr("abs:src");
// create game object
GameObject gameObjectA1 = new GameObject();
gameObjectA1.setGlTitle(titleA1);
gameObjectA1.setGlAchAmount(achAmountA1 + " achievements");
gameObjectA1.setGlGSAmount(gsAmountA1 + " gamer score");
gameObjectA1.setGlAchPageUrl(aPageLinkA1);
gameObjectA1.setGlIcon(iconSrcA1);
mGameObjectList.add(gameObjectA1);
}
if (eMain.getElementsByClass("trA2").select("strong").get(i).text() != null) {
String titleA2 = eMain.getElementsByClass("trA2").select("strong").get(i).text();
String achAmountA2 = eMain.getElementsByClass("trA2").select("td[align]").get(mAchAmountCounter).text();
String gsAmountA2 = eMain.getElementsByClass("trA2").select("td[align]").get(mGsAmountCounter).text();
String aPageLinkA2 = eMain.getElementsByClass("trA2").select("td a").get(mPageLinkCounter).attr("abs:href");
String iconSrcA2 = eMain.getElementsByClass("trA2").select("td a img").get(i).attr("abs:src");
GameObject gameObjectA2 = new GameObject();
gameObjectA2.setGlTitle(titleA2);
gameObjectA2.setGlAchAmount(achAmountA2 + " achievements");
gameObjectA2.setGlGSAmount(gsAmountA2 + " gamer score");
gameObjectA2.setGlAchPageUrl(aPageLinkA2);
gameObjectA2.setGlIcon(iconSrcA2);
mGameObjectList.add(gameObjectA2);
}
// counters
mPageLinkCounter += 3;
mAchAmountCounter += 2;
mGsAmountCounter += 2;
// update progress bar
publishProgress((100 / (Integer) Math.round(eA1.size())));
}
}
答案 0 :(得分:1)
由于“trA2”的大小始终小于“trA1”的大小,因此您可以将其作为修复。
在for循环之前,声明:
final int size2 = eMain.getElementsByClass("trA2").size();
在for循环中,更改:
if (eMain.getElementsByClass("trA2").select("strong").get(i).text() != null)
为:
if (i < size2 && eMain.getElementsByClass("trA2").select("strong").get(i).text() != null)
Offtopic但为了清晰代码,您可能希望在for循环之前分别声明两个变量element1
和element2
到eMain.getElementsByClass("trA1")
和eMain.getElementsByClass("trAeMain.getElementsByClass("trA2")
,以使您的代码更清晰。