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Editor to share with you how Kotlin to achieve lateinit, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Lateinit

Checking for Null is one of the characteristics of Kotlin, so when the data is defined, the data is initialized. However, there are some properties in Android that need to be initialized in the onCreate () method.

Private lateinit var mAdapter: RecyclerAdapteroverride fun onCreate (savedInstanceState: Bundle?) {super.onCreate (savedInstanceState) mAdapter = RecyclerAdapter (R.layout.item_transaction)}

If it is the basic data type:

Var count: Int by Delegates.notNull () var name:String by Delegate ()

If you use Butter Knife:

BindView (R.id.toolbar) lateinit var toolbar: Toolbaroverride fun onCreate (savedInstanceState: Bundle?) {super.onCreate (savedInstanceState) setContentView (R.layout.activity_main) ButterKnife.bind (this) / / you can now reference toolbar with no problems! Toolbar.setTitle ("Hello There")} these are all the contents of the article "how Kotlin implements lateinit". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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