Remove Spacing or Padding in android Spinner

Question

I\'m using android spinner and edittext from support lib v21. I would like to align text to left the same like edittext as shown in figure. But, deafult spinner include spac

Answer 1

This Kotlin code is a little bit more succinct than the getView override in another answer. It makes it a bit more clear in fewer lines that it is mostly just doing what super does, except that it also overrides setPaddingfor the left value.

override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
    return super.getView(position, convertView, parent).apply {
        setPadding(0, paddingTop, paddingRight, paddingBottom)
    }
}

Here is my full fragment code that uses a data binding object for the complete spinner array adapter override, which also does a selected item and an alternating background color in getDropDownView:

binding.editSpinner.apply {
    this.context ?: return@apply
    this.adapter = object : ArrayAdapter(
        requireContext(),
        android.R.layout.simple_spinner_dropdown_item,
        SpinnerTypeValues.values().map { it.text }
    ) {
        override fun getDropDownView(position: Int, convertView: View?, parent: ViewGroup): View {
            return super.getDropDownView(position, convertView, parent).also {
                when {
                    position == this@apply.selectedItemPosition -> it.setBackgroundColor( Color.rgb(245, 212, 119) )
                    position % 2 == 0 -> it.setBackgroundColor(Color.rgb(240, 240, 240))
                    else -> it.setBackgroundColor(Color.rgb(214, 235, 189))
                }
            }
        }
        override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
            return super.getView(position, convertView, parent).apply {
                setPadding(0, paddingTop, paddingRight, paddingBottom)
            }
        }
    }
    this.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
        override fun onNothingSelected(parent: AdapterView<*>?) {}
        override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
            viewModel.saveSpinnerSelection(position)
        }
    }
}