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// Request background permission
ActivityCompat.requestPermissions(
   this@MainActivity,
   arrayOf(Manifest.permission.ACCESS_BACKGROUND_LOCATION),
   REQUEST_BACKGROUND_ONLY_PERMISSIONS_REQUEST_CODE
)

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<!-- Specify the permissions that you are using -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

<!-- Specify the background location permission. -->
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />

<!-- Declare a foreground service, if applicable -->
<service
   android:name="MyForgroundService"
   android:foregroundServiceType="location">                                

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// Request permission
ActivityCompat.requestPermissions(
   this@MainActivity,
   arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),
   REQUEST_FOREGROUND_ONLY_PERMISSIONS_REQUEST_CODE
)

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<!-- Specify the permissions that you are using -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

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class LessNumerousGCRecyclerViewAdapter(private val context: Context,
                                         private val numbers: List<Int>): RecyclerView.Adapter<NumerousGCViewHolder>() {

    val bitBitmap = BitmapFactory.decodeResource(context.resources, R.drawable.big_bitmap)
    val smallBitmap = BitmapFactory.decodeResource(context.resources, R.drawable.small_bitmap)

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NumerousGCViewHolder {
        val view = LayoutInflater.from(parent.context)
            .inflate(R.layout.item_numerous_gc, parent, false)
        return NumerousGCViewHolder(view)

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class NumerousGCActivity: AppCompatActivity() {

    val NO_OF_VIEWS = 100000


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_numerous_gc)
        btn_start.setOnClickListener {
            setupRecyclerView()

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/***
 * In order to stress the memory usage,
 * this activity creates 100000 rows of TextView when user clicks on the start button
 */
class HighMemoryUsageActivity : AppCompatActivity() {

    val NO_OF_TEXTVIEWS_ADDED = 100000

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

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// Read the pinned certificate from local (i.e., assets folder)
val inputStream = context.assets.open("google.crt")
val pinnedCertificate = CertificateFactory.getInstance("X.509")
    .generateCertificate(inputStream)

// Create a request to www.google.com
val url = URL("https://www.google.com")
val httpsUrlConnection = url.openConnection() as HttpsURLConnection

// Establish the connection

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override fun onDraw(canvas: Canvas?) {
   super.onDraw(canvas)
  ...
  drawGlasses(canvas, face)
  drawCigarette(canvas, face) 

}

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/**
* Draw cigarette at the left mouth
*/
private fun drawCigarette(canvas: Canvas, face: FirebaseVisionFace) {
   val rightMouth = face.getLandmark(FirebaseVisionFaceLandmark.RIGHT_MOUTH)
   val leftMouth = face.getLandmark(FirebaseVisionFaceLandmark.LEFT_MOUTH)

   if (leftMouth != null && rightMouth != null) {
       val mouthLength = ((leftMouth.position.x - rightMouth.position.x) * widthScaleFactor).toInt()
       val cigaretteRect = Rect(