Gettin enum types may not be instantiated Exception

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醉梦人生
醉梦人生 2021-01-21 19:43

I am getting RuntimeException

Enum types may not be instantiated

I don\'t know why. What I want is to identify a year by an intege

3条回答
  •  没有蜡笔的小新
    2021-01-21 20:15

    Here is another way

    enum class WWGameState private constructor(var intValue: Int)  {
        pregame(0),
        inProgress(1),
        paused(2),
        over(3);
    
        companion object
        {
            internal fun build(i: Int): WWGameState
            {
                for (gs in WWGameState.values())
                {
                    if (gs.intValue == i)
                    {
                        return gs
                    }
                }
    
                return WWGameState.pregame
    
            }
        }
    }
    

    Usage:

    gameState = WWGameState.build(savedState!!.getInt("MODE"))
    

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