如何初始化lateinit变量？

Question

lateinit property textInput has not been initialized

class MainActivity : BaseActivity() {

    private val drawerToggle by lazy { ActionBarDrawerToggle(this, drawer_layout, drawer_open, drawer_close) }

    private val survivalContent by lazy { SurvivalContent(assets) }

    private lateinit var currentUrl: String
    private lateinit var currentTopicName: String
    private lateinit var textInput: MutableList<String>


    private var lastFontSize = State.getFontSize()
    private var lastNightMode = State.nightModeString()
    private var lastAllowSelect = State.allowSelect()

    private val linearLayoutManager by lazy { LinearLayoutManager(this) }

    private var isInEditMode by observable(false, onChange = { _, _, newMode ->
        if (newMode) {
            fab.setImageResource(drawable.ic_image_remove_red_eye)
            contentRecycler.adapter = EditingRecyclerAdapter(textInput)
        } else {
            fab.setImageResource(drawable.ic_editor_mode_edit)
            contentRecycler.adapter = MarkdownRecyclerAdapter(textInput, imageWidth(), onURLClick)
        }

        contentRecycler.scrollToPosition(State.lastScrollPos)
    })

因为我是android开发新手，所以我不知道如何在使用lateinit变量之前初始化它。在此之前，我尝试过执行Git子模块更新，就像这个github中提到的，但没有成功。所以现在我希望问题出在初始化textInput变量上。

Answer 1

在使用textinput变量之前，必须对其进行初始化。为此，您可以这样做：

textInput = mutableListOf("Abc", "Xyz")

docs：在lateinit属性初始化之前访问该属性会引发一个特殊的异常，该异常清楚地标识了正在访问的属性以及该属性尚未初始化的事实。

阅读更多内容:https://kotlinlang.org/docs/reference/properties.html#late-initialized-properties-and-variables