2我需要一些与此代码的帮助。我收到了IndexOutOfBoundsException。我知道为什么,但是我坚持尝试修复它。问题:eMain.getElementsByClass(“ trA1”)。size()= 8和eMain.getElementsByClass(“ trA2”)。size()= 7(大小很多,但是trA1总是大于trA2)。我需要将每个元素添加到ArrayList中,作为add(trA1),add(trA2),add(trA1),add(trA2)……(我正在使用for循环),但是当我得到到元素8,我得到了异常,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“”,但是我仍然得到了异常。有任何想法吗。
// 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())));
}
}
最佳答案
由于“ trA2”的大小始终小于“ trA1”的大小,因此可以解决此问题。
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)
至:
if (i < size2 && eMain.getElementsByClass("trA2").select("strong").get(i).text() != null)
脱位,但为了代码清晰起见,您可能还想在for循环之前分别向
element1
和element2
声明两个变量eMain.getElementsByClass("trA1")
和eMain.getElementsByClass("trAeMain.getElementsByClass("trA2")
,以使代码更清晰。