(Android)尝试抛出OutOfMemoryError时抛出OutOfMemoryError

Question

所以我正在创建一个Android应用程序,这个代码抛出"引起:java.lang.OutOfMemoryError:尝试抛出OutOfMemoryError时抛出OutOfMemoryError;没有可用的堆栈跟踪"错误:

public ArrayList<Double> statModa(ArrayList<Double> statRed, ArrayList<Double> uniqueRed) {
    ArrayList<Double> result = new ArrayList<>();
    int maxFreqIndex = 0;
    int maxFreq = Collections.frequency(statRed, uniqueRed.get(0));
    for (int i=1; i < statRed.size(); i++){
        int currentFreq = Collections.frequency(statRed, statRed.get(i));
        if ((currentFreq >  maxFreq) || (currentFreq == maxFreq && statRed.get(i) == statRed.get(maxFreqIndex))) {
            maxFreqIndex = i;
            maxFreq = currentFreq;
        }
    }

    if (maxFreq == statRed.size() / uniqueRed.size())
        return result;

    if (maxFreqIndex == statRed.size()-1){
        result.add(statRed.get(maxFreqIndex));
        return result;
    }

    for (int i=maxFreqIndex+1; i < statRed.size(); i++){
        int currentFreq = Collections.frequency(statRed, statRed.get(i));
        if (currentFreq != maxFreq) {
            result.add(statRed.get(maxFreqIndex));
            int tempIndex = maxFreqIndexFinder(statRed, i, maxFreq);
            if (tempIndex == maxFreqIndex) {
                break;
            } else {
                i = tempIndex;
                maxFreqIndex = tempIndex;
            }
        } else {
            double temp = statRed.get(maxFreqIndex);
            int tempTimes = 1;
            for (int j=1; i + currentFreq*j - 1 < statRed.size(); j++){
                if (currentFreq == Collections.frequency(statRed, statRed.get(i + currentFreq*j - 1))) {
                    temp += statRed.get(i + currentFreq * j - 1);
                    tempTimes++;
                    maxFreqIndex = i + currentFreq * j - 1;
                } else {
                    break;
                }
            }
            result.add(temp/(double)tempTimes);
            i = maxFreqIndex;
        }
    }

    return result;
}

public int maxFreqIndexFinder(ArrayList<Double> statRed, int startingIndex, int maxFreq){
    int resultIndex = startingIndex - 1;
    int count = 0;
    double lastFreqValue = 0;
    for (int i = startingIndex; i < statRed.size(); i++){
        int currentFreq = Collections.frequency(statRed, statRed.get(i));
        if (currentFreq == maxFreq) {
            count++;
            if (count == 1) {
                resultIndex = i;
                lastFreqValue = statRed.get(i);
            } else {
                if (lastFreqValue == statRed.get(i)) {
                    resultIndex = i;
                    lastFreqValue = statRed.get(i);
                } else {
                    break;
                }
            }
        }
    }
    return resultIndex;
}

我不太确定究竟是什么导致错误.我怀疑是一个无限循环,但我找不到它,所以我在这里问.在抛出错误之前,它会不断分配内存.

这是控制台日志(如果需要):PasteBin

附加信息:

单击按钮时会运行statModa函数.

红色意味着线.

我运行应用程序并获得错误的值如下:

ArrayList statRed的值为{ 0.1,1,1,2,2,3,3,4,5 5 5}和

ArrayList uniqueRed的值为{ 0.1,1,2,3,4,5 }.

这些也不是给我这个错误的唯一值.如果这个(maxFreq == statRed.size()/ uniqueRed.size())为真则没有错误,如果没有,那么我得到错误.

PS我看到另一个问题有同样的错误,只有一个答案是启用largeHeap,但它对我不起作用.

Answer 1

OOm 是因为该行i = maxFreqIndex;，因为给定的输入maxFreqIndex是 8 并且不会改变，所以你会得到无限循环for (int i=maxFreqIndex+1; i < statRed.size(); i++)