Android - LinearView - Dynamic instantiation of views

I'm trying to create a function that instantiates some views in a linear layout

private lateinit var layout: LinearLayout 
var par = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT)

override fun onCreate(savedInstanceState: Bundle?) {
    //The init stuff with binding
    layout = binding.root.findViewById(R.id.gamelayout)
    lpar.setMargins(10,10,10,10)

    test()
}

private fun instanciateText(s:String)
{
    val tv = TextView(this)
    tv.text = s
    tv.layoutParams = par
    layout.addView(tv)
}

fun instanciateImage()
{
    val iv = ImageView(this)
    iv.setImageResource(R.drawable.start1)
    iv.layoutParams = par
    layout.addView(iv)
}

fun test(){
    instanciateText("Text 1 ")
    instanciateImage()
    instanciateText("Text 2 ")
}

It works fine for text, but for images, the views are far from each other and I can't find the reason