how can i put drawable in onSaveInstanceState

Question

I am using onSaveInstanceState to save a data item and I need to save a drawble as well, but there's no method called putDrawable. Therefore, how can I store a drawable in a Bundle?

This my code:

override fun onSaveInstanceState(outState: Bundle) {
    super.onSaveInstanceState(outState)
    outState.putParcelable("item", item)
    outState.putDrawable("drawable", drawable) // This line is not compiling
}

override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
    item = savedInstanceState?.getParcelable("item") ?: item
    return super.onCreateDialog(savedInstanceState)
}

Answer 1

There is NO way you can pass a drawable in a android.os.Bundle.

What you can instead do is to create a class with a static object of drawable. You can store the drawable in it when onSaveInstanceState() triggers. And then use the same class to retrieve back the drawable. The code given below will explain better:

1. The additional class

   class VariablesHelper(){
      companion object{
         var drawable?: Drawable =  null
      }
   }
   

2. For setting the drwable

   override fun onSaveInstanceState(outState: Bundle) {
      super.onSaveInstanceState(outState)
      VariablesHelper.drawable = drawable
   }
   

3. For getting the drawable, use

   val drawable?:Drawable = VariablesHelper.drawable