CODEWITHSUNDEEP
androidkotlinfile
nope
nope

Reputation: 314

Android Kotlin | Picking random line from text file

very simple, android kotlin. i have a file in the project assest folder with sentence in each line. what i wants, is when i open dialog, it will select random line and put it as the dialog message. i couldn't find any proper solution. dialog's code:

class JokeFragment : DialogFragment() {

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        return activity?.let {
            val sentence: String = //random line from the file
            // Use the Builder class for convenient dialog construction
            val builder = Builder(it)
            builder.setMessage(sentence)
                .setNegativeButton(R.string.cancel){ _, _->}
            // Create the AlertDialog object and return it
            builder.create()
        } ?: throw IllegalStateException("Activity cannot be null")
    }
}

Upvotes: 0

Views: 254

Answers (1)

bylazy
bylazy

Reputation: 1295

Based on this answer:

fun readRandomLineFromAsset(context: Context, fileName: String): String =
        context
            .assets
            .open(fileName)
            .bufferedReader()
            .use(BufferedReader::readText)
            .lines()
            .shuffled()
            .first()

Updated code - shuffled().first() instead of random()

Random picks same line every time fo some reason.

Upvotes: 1

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