readme.md

Utils for youtube manage links

val links = listOf(
    "youtube.com/v/tFad5gHoBjY",
    "youtube.com/vi/tFad5gHoBjY",
    "youtube.com/?v=tFad5gHoBjY",
    "youtube.com/?vi=tFad5gHoBjY",
    "youtube.com/watch?v=tFad5gHoBjY",
    "youtube.com/watch?vi=tFad5gHoBjY",
    "youtu.be/tFad5gHoBjY",
    "http://youtu.be/qokEYBNWA_0?t=30m26s",
    "youtube.com/v/tFad5gHoBjY",
    "youtube.com/vi/tFad5gHoBjY",
    "youtube.com/?v=tFad5gHoBjY",
    "youtube.com/?vi=tFad5gHoBjY",
    "youtube.com/watch?v=tFad5gHoBjY",
    "youtube.com/watch?vi=tFad5gHoBjY",
    "youtu.be/tFad5gHoBjY",
    "youtube.com/embed/tFad5gHoBjY",
    "http://youtube.com/v/tFad5gHoBjY",
    "http://www.youtube.com/v/tFad5gHoBjY",
    "https://www.youtube.com/v/tFad5gHoBjY",
    "youtube.com/watch?v=tFad5gHoBjY&wtv=wtv",
    "http://www.youtube.com/watch?dev=inprogress&v=tFad5gHoBjY&feature=related",
    "youtube.com/watch?v=7HCZvhRAk-M"
)

/*links.forEach {
    println(it)
    println(YoutubeUtils.getYoutubeId(it))
}*/

val testStr = "Nuevo video kpop youtube.com/watch?v=xGr53sCo62c&list=RDxGr53sCo62c&index=1 y  mi blog https://wordpress.com/post/dev4phones.wordpress.com/3389 otro video de youtube https://www.youtube.com/watch?v=Ed6N7RPiqKU"
val links2 = YoutubeUtils.getYoutubeId(testStr)
Log.d(TAG, "alllinks: " + links2)

links2.forEach {
    Log.d(TAG, "onCreate: " + YoutubeUtils.buildYoutubeLinkDetail(it))
}

YoutubeUtils.kt

import android.util.Patterns
import java.util.regex.Pattern


object YoutubeUtils {

    private fun extractYoutubeId(url: String): String? {
        val pattern = "([/|?|&]vi?[/|=]|youtu.be/|embed/)([a-zA-Z0-9_-]+)".toRegex()
        return pattern.find(url)?.groupValues?.last()
    }

    fun getYoutubeId(input: String): List<String> {
        val links = getHyperlinksFromText(input)

        val result: MutableList<String> = ArrayList()
        links.forEach {
            val vId: String? = extractYoutubeId(it)
            vId?.let {
                result.add(vId)
            }
        }
        return result.toList()
    }

    private fun getHyperlinksFromText(input: String): List<String> {
        val result: MutableList<String> = ArrayList()
        val words = input.split("\\s+".toRegex()).toTypedArray()
        val pattern: Pattern = Patterns.WEB_URL
        for (word in words) {
            if (pattern.matcher(word).find()) {
                result.add(
                    if (!word.lowercase().contains("http://") && !word.lowercase().contains("https://")) {
                        "https://$word"
                    } else word
                )
            }
        }
        return result
    }

    fun buildYoutubeLink(vId: String): String {
        return "https://www.youtube.com/watch?v=$vId"
    }

    fun buildYoutubeLinkDetail(vId: String) : String {
        val url = buildYoutubeLink(vId)
        return "http://www.youtube.com/oembed?url=$url&format=json"

    }
}