It returns the index of an element which will be returned by a subsequent call to the next () function. A simple solution is to use the nextIndex () function from the iterator returned by the ListIterator. ![]() * This does not allocate an iterator like. This article explores different ways to traverse a list with the index in Kotlin. * Iterates through a using the index and calls for each item. For traversing collection elements, the Kotlin standard library supports the commonly used mechanism of iterators objects that provide access to the elements sequentially without exposing the underlying structure of the collection. I recommend taking a look for yourself but in summary, some google engineers had created "fast" versions of the standard Kotlin list manipulation functions for use within the framework. With indexed for loop, you can just i + N. The withIndex function packs each element into IndexedValue, which contains both the elements and. It returns the integer index of the element in the array list, or -1 if the input element is not present in the list. ![]() I recently stumbled across some curious code in the Jetpack Compose source. Selection from Android Development with Kotlin Book.
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