android – 在onRestoreInstanceState中发生ClassCastException

我认为它发生在活动进入后台并被破坏但我不确定.

有任何想法吗？谢谢.

Stack<LOCATIOnInfo> mLOCATIOnInfoVector;

@Override
protected void onSaveInstanceState(Bundle outStatE) {
    outState.putserializable("LOCATIOnInfos",mLOCATIOnInfoVector);

    super.onSaveInstanceState(outStatE);
}

@Override
protected void onRestoreInstanceState(Bundle savedInstanceStatE) {
    if (savedInstanceState.getserializable("LOCATIOnInfos") != null) {
        @SuppressWarnings("unchecked")
        mLOCATIOnInfoVector= (Stack<LOCATIOnInfo>) savedInstanceState.getserializable("LOCATIOnInfos");
    }

    super.onRestoreInstanceState(savedInstanceStatE);
}

添加：

我忘了附上异常日志.
那是

java.lang.ClassCastException: java.util.ArrayList cAnnot be cast to java.util.Stack

解决方法

objects = new Vector<Object>((Collection<Object>) state.getserializable(EXTRA_OBjeCTS));

stack = new Stack<Object>();
stack.addAll((Collection<Object>) state.getserializable(EXTRA_STACK));