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Download 4k Video From Youtube Android Apr 2026
I can't directly download videos from YouTube as it violates YouTube's Terms of Service (only official YouTube Premium allows offline downloads within their app).
// Lifecycle implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.7.0") implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0") } // VideoDownloaderService.kt import android.app.* import android.content.Context import android.content.Intent import android.os.Binder import android.os.Build import android.os.IBinder import androidx.core.app.NotificationCompat import kotlinx.coroutines.* import okhttp3.OkHttpClient import okhttp3.Request import java.io.File import java.io.FileOutputStream import java.net.URL class VideoDownloaderService : Service() { private val binder = DownloadBinder() private val client = OkHttpClient.Builder() .connectTimeout(30, java.util.concurrent.TimeUnit.SECONDS) .readTimeout(30, java.util.concurrent.TimeUnit.SECONDS) .build() private val serviceScope = CoroutineScope(Dispatchers.IO + SupervisorJob())
private val permissionLauncher = registerForActivityResult( ActivityResultContracts.RequestMultiplePermissions() ) { permissions -> val allGranted = permissions.values.all { it } if (allGranted) { startDownload() } else { Toast.makeText(this, "Storage permission required", Toast.LENGTH_SHORT).show() } }
override fun onDestroy() { super.onDestroy() serviceScope.cancel() } } // MainActivity.kt import android.Manifest import android.content.ComponentName import android.content.Context import android.content.Intent import android.content.ServiceConnection import android.content.pm.PackageManager import android.net.Uri import android.os.Build import android.os.Bundle import android.os.IBuilder import android.os.IBinder import android.widget.Toast import androidx.activity.result.contract.ActivityResultContracts import androidx.appcompat.app.AppCompatActivity import androidx.core.content.ContextCompat import androidx.lifecycle.lifecycleScope import com.google.android.material.dialog.MaterialAlertDialogBuilder import com.google.android.material.snackbar.Snackbar import kotlinx.coroutines.launch class MainActivity : AppCompatActivity() { private var downloadService: VideoDownloaderService? = null private var isBound = false download 4k video from youtube android
<com.google.android.material.textfield.TextInputLayout android:layout_width="match_parent" android:layout_height="wrap_content" style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox" android:hint="Video URL">
fun downloadVideo(url: String, fileName: String, onProgress: (Float) -> Unit, onComplete: (File?) -> Unit) { serviceScope.launch { try { startForegroundWithNotification() val request = Request.Builder().url(url).build() val response = client.newCall(request).execute() if (!response.isSuccessful) { withContext(Dispatchers.Main) { onComplete(null) } return@launch } val contentLength = response.body?.contentLength() ?: -1L val inputStream = response.body?.byteStream() val downloadsDir = getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS) val outputFile = File(downloadsDir, "$fileName.mp4") FileOutputStream(outputFile).use { outputStream -> val buffer = ByteArray(8192) var bytesRead: Int var totalBytesRead = 0L while (inputStream?.read(buffer).also { bytesRead = it ?: -1 } != -1) { outputStream.write(buffer, 0, bytesRead) totalBytesRead += bytesRead if (contentLength > 0) { val progress = (totalBytesRead.toFloat() / contentLength) * 100 withContext(Dispatchers.Main) { onProgress(progress) updateNotification(progress.toInt()) } } } } inputStream?.close() withContext(Dispatchers.Main) { onComplete(outputFile) } stopForeground(false) } catch (e: Exception) { e.printStackTrace() withContext(Dispatchers.Main) { onComplete(null) } } } }
private fun openDownloadsFolder() { val downloadsDir = getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS) val intent = Intent(Intent.ACTION_VIEW).apply { setDataAndType(Uri.fromFile(downloadsDir), "resource/folder") addFlags(Intent.FLAG_ACTIVITY_NEW_TASK) } startActivity(Intent.createChooser(intent, "Open Downloads")) } I can't directly download videos from YouTube as
inner class DownloadBinder : Binder() { fun getService(): VideoDownloaderService = this@VideoDownloaderService }
private fun loadSampleVideos() { // Sample public domain/Creative Commons video URLs for testing val samples = listOf( SampleVideo("Sample 1 - Big Buck Bunny", "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"), SampleVideo("Sample 2 - For Bigger Blazes", "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ForBiggerBlazes.mp4"), SampleVideo("Sample 3 - For Bigger Funrides", "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ForBiggerFunrides.mp4") ) // Display samples in RecyclerView (simplified - add to a list) binding.samplesContainer.removeAllViews() samples.forEach { sample -> val button = com.google.android.material.button.MaterialButton(this).apply { text = sample.name layoutParams = android.view.ViewGroup.LayoutParams( android.view.ViewGroup.LayoutParams.MATCH_PARENT, android.view.ViewGroup.LayoutParams.WRAP_CONTENT ) setOnClickListener { binding.etUrl.setText(sample.url) binding.etFileName.setText(sample.name.replace(" ", "_").lowercase()) } } binding.samplesContainer.addView(button) } }
<application android:requestLegacyExternalStorage="true" ... > dependencies { implementation("androidx.core:core-ktx:1.12.0") implementation("androidx.appcompat:appcompat:1.6.1") implementation("com.google.android.material:material:1.11.0") // Networking implementation("com.squareup.okhttp3:okhttp:4.12.0") implementation("com.squareup.okhttp3:logging-interceptor:4.12.0") > dependencies { implementation("androidx
<TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="24dp" android:text="Sample Videos (Public Domain / CC)" android:textStyle="bold" android:textSize="16sp" />
private fun openFile(file: File) { val intent = Intent(Intent.ACTION_VIEW).apply { setDataAndType(Uri.fromFile(file), "video/mp4") addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION) } startActivity(Intent.createChooser(intent, "Play Video")) }
// Coroutines implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3")
override fun onBind(intent: Intent?): IBinder = binder
private fun checkPermissionsAndDownload(url: String, fileName: String) { val permissions = mutableListOf<String>() if (Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU) { if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { permissions.add(Manifest.permission.WRITE_EXTERNAL_STORAGE) } } if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) { if (ContextCompat.checkSelfPermission(this, Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED) { permissions.add(Manifest.permission.POST_NOTIFICATIONS) } } if (permissions.isNotEmpty()) { permissionLauncher.launch(permissions.toTypedArray()) } else { startDownload(url, fileName) } }
