Change from ArrayList to Vector

I'm working on an android game and I just noticed that since onTouchEvent runs on the UI thread, and the update/render methods are ran from a separate threads, both of them update an ArrayList which contains the entities. So obviously they conflict if they happen to modify the list at the same time.

I read that Vector class is used exactly the same as ArrayList with the only difference that Vector is synchronized, ergo they wont conflict. Is that true? if so, does it have any performance issue or something that I should be concerned about? I have never used Vector class before.

EDIT: what I actually meant was change from

ArrayList<Obj> list = new ArrayList<Obj>();

to

Vector<Obj> list = new Vector<Obj>()

But as the answers say, Vector is not recommended to use. The selected answer solved my issue.

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It's oldie Vector try to not use Vector instead use

synchronizedList

Example :

list = Collections.synchronizedList(list);

Vector is considered obsolete and deprecated read Why vector is considerer obsolete?

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对于那些不得不与传统代码进行斗争的人，只需执行以下操作：

new Vector<Obj>(anyThingWhichImplemntsCollection);

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List<Foo> list = new Vector<Foo>(new ArrayList<Foo>());  

should work. Both of those structures implements List interface.

But like other people suggested, this is not recomended.

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