[SOLVED] Lint error with snackbar extension function

Lint error with snackbar extension function

I have the following extension function to reduce a bit the code and to avoid forgetting the duration when showing a snackbar:

fun Fragment.showSnackbar(text: String, length: Int = Snackbar.LENGTH_SHORT) {
    view?.run { Snackbar.make(this, text, length).show() }
}

But the lint is giving me the following error:

Error: Must be one of: BaseTransientBottomBar.LENGTH_INDEFINITE, BaseTransientBottomBar.LENGTH_SHORT, BaseTransientBottomBar.LENGTH_LONG or value must be ≥ 1 (was -1) [WrongConstant]
       view?.run { Snackbar.make(this, textResId, length).show() }
                                                  ~~~~~~

It seems that if you pass a custom length param it should be an int >=0 and it is detecting that the default param is a custom one not a system/class one but it is (LENGTH_SHORT, which is -1).

If the length param is of type BaseTransientBottomBar.Duration (which is an interface notation to set the possible values of the length param) it compiles well but I don't know how to assign it as a default value.

There is any way to avoid the lint error or to set a default value of type BaseTransientBottomBar.Duration?

--- EDIT: after apply the @rahat approach:

fun Fragment.showSnackbar(text: String, @BaseTransientBottomBar.Duration length: Int = Snackbar.LENGTH_SHORT) {
    view?.run { Snackbar.make(this, text, length).show() }
}

The error:

   [PATH]/DesignExt.kt:18: Error: Must be one of: BaseTransientBottomBar.LENGTH_INDEFINITE, BaseTransientBottomBar.LENGTH_SHORT, BaseTransientBottomBar.LENGTH_LONG [WrongConstant]
   fun Fragment.showSnackbar(text: String, @BaseTransientBottomBar.Duration length: Int = Snackbar.LENGTH_SHORT) {
                                                                                          ~~~~~~~~~~~~~~~~~~~~~

Solution

Finally I avoid the error adding the warning 'WrongConstant' to the lint.xml file. If it was the only thing in the file it will be:

android {     
  lintOptions {          
      warning "WrongConstant"      
  } 
}