如何将表达式转换为在Kotlin中的时间

如何使用Kotlin将以下代码从if expression转换为何when ？

其实我在我的活动中使用2个适配器，我得到的问题将转换if expression when ，任何解决方案？

这是我的代码

  var ADAPTER_TYPE_1=adapter1 var ADAPTER_TYPE_2=adapter2 if(ADAPTER_TYPE_1 ==lvFoods2.adapter) { ADAPTER_TYPE_1 = FoodAdapter(listOfFoods2, this) lvFoods2.adapter = ADAPTER_TYPE_1 } else if (ADAPTER_TYPE_2==lvFoods2.adapter) { ADAPTER_TYPE_2 = FoodAdapter2(listOfFoods3, this) lvFoods2.adapter = ADAPTER_TYPE_2 } 

Answer 1

像这样的东西：

 var adapterType1 = adapter1 var adapterType2 = adapter2 lvFoods2.adapter = when (lvFoods2.adapter) { adapterType1 -> FoodAdapter(listOfFoods2, this).also { adapterType1 = it } adapterType2 -> FoodAdapter2(listOfFoods3, this).also { adapterType2 = it } else -> lvFoods2.adapter }