Is it possible to create suggestion for custom view?

Question

I am creating a custom view but I want to show suggestions to user just like other android views. Can I do that with custom views?

For Example:

Answer 1

It is possible to show custom options for your custom option using enum format in your declare-styleable tag for your custom view.

First, you declare your desired attributes in your attrs.xml file like this

<declare-styleable name="customView">
  <attr name="customOption" format="enum">
    <enum name="option1" value="0" />
    <enum name="option2" value="1" />
  </attr>
</declare-styleable>

Now get this customOption value in your customView like this

const val OPTION_1 = 0 //for readability
const val OPTION_2 = 1 //for readability
var customOption = OPTION_1

init {
  paint.isAntiAlias = true
  setupAttributes(attrs)
}

private fun setupAttributes(attrs: AttributeSet?) {
  val typedArray = context.theme.obtainStyledAttributes(attrs, R.styleable.customView, 0, 0)
  customOption = typedArray.getInt(R.styleable.customView_customOption, OPTION_1.toInt())
}