在我的情况下，我需要初始化我的抽屉项目。我通过以下代码填充数据。

    val iconsArr : IntArray = resources.getIntArray(R.array.navigation_drawer_items_icon)
    val names : Array<String> = resources.getStringArray(R.array.navigation_drawer_items_name)


    // Use lambda function to add data in my custom model class i.e. DrawerItem
    val drawerItems = Array<DrawerItem>(iconsArr.size, init = 
                         { index -> DrawerItem(iconsArr[index], names[index])})
    Log.d(LOGGER_TAG, "Number of items in drawer is: "+ drawerItems.size)

自定义模型类-

class DrawerItem(var icon: Int, var name: String) {

}

在我的情况下，我需要初始化我的抽屉项目。我通过以下代码填充数据。

    val iconsArr : IntArray = resources.getIntArray(R.array.navigation_drawer_items_icon)
    val names : Array<String> = resources.getStringArray(R.array.navigation_drawer_items_name)


    // Use lambda function to add data in my custom model class i.e. DrawerItem
    val drawerItems = Array<DrawerItem>(iconsArr.size, init = 
                         { index -> DrawerItem(iconsArr[index], names[index])})
    Log.d(LOGGER_TAG, "Number of items in drawer is: "+ drawerItems.size)

自定义模型类-

class DrawerItem(var icon: Int, var name: String) {

}

您可以使用这些方法

var numbers=Array<Int>(size,init)
var numbers=IntArray(size,init)
var numbers= intArrayOf(1,2,3)

例子

var numbers = Array<Int>(5, { i -> 0 })

Init表示默认值(initialize)

这里有一个简单的例子

val id_1: Int = 1
val ids: IntArray = intArrayOf(id_1)

你可以像这样创建一个Int数组:

val numbers = IntArray(5, { 10 * (it + 1) })

5是Int数组的大小。函数是元素init函数。“it”范围在[0,4]，加上1 make范围在[1,5]

原点函数为:

 /**
 * An array of ints. When targeting the JVM, instances of this class are 
 * represented as `int[]`.
 * @constructor Creates a new array of the specified [size], with all elements 
 *  initialized to zero.
 */
 public class IntArray(size: Int) {
       /**
        * Creates a new array of the specified [size], where each element is 
        * calculated by calling the specified
        * [init] function. The [init] function returns an array element given 
        * its index.
        */
      public inline constructor(size: Int, init: (Int) -> Int)
  ...
 }

定义在Arrays.kt中的IntArray类

初始化数组:val paramValueList: array <String?> = arrayOfNulls<String>(5)