Kotlin Blueprints

The let() function

The let() function simply executes the function or given block with its own reference this as a receiver and returns the result. In Android, you can use it to execute all that code where you put a null check and then try to get and set value over it. We have shown you the use case in UserTimeLineFrgment.kt, where the code is as follows:

    TwitterCore.getInstance().sessionManager.activeSession?.let {      val userTimeline = UserTimeline.Builder()       .screenName(TwitterCore.getInstance()       .sessionManager.activeSession.userName)       .build()      val adapter = TweetTimelineRecyclerViewAdapter.Builder(context)       .setTimeline(userTimeline)       .setViewStyle(R.style.tw__TweetLightWithActionsStyle)       .build()       rvTimeline.layoutManager = LinearLayoutManager( ...