OnBackPressed Alternative way for fragments and activities

OnBackPressedAlternativeWay.kt

/* ----------------------------------------- Activity ------------------------------------------ */

/* make sure you have at least 'androidx.activity:activity-ktx:1.6.0-rc01' at your dependencies 
		(just to let you know this dependency is not stable yet )
*/

implementation 'androidx.activity:activity-ktx:1.6.0-rc01'

fun AppCompatActivity.onBackPressed(isEnabled: Boolean, callback: () -> Unit) {
    onBackPressedDispatcher.addCallback(this,
        object : OnBackPressedCallback(isEnabled) {
            override fun handleOnBackPressed() {
                callback()
            }
        })
}

// How To Use it : 
class ExampleActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_example)
        
    	onBackPressed(true) {
		  // do what do you want when get back 
        }
    }

}


/* --------------------------------------------- Fragments --------------------------------------------------- */


// make sure you have at least androidx.activity:activity:1.0.0 at your dependencies

implementation 'androidx.activity:activity-ktx:1.0.0'

fun FragmentActivity.onBackPressed(callback: () -> Unit) {
    onBackPressedDispatcher.addCallback(this,
        object : OnBackPressedCallback(true) {
            override fun handleOnBackPressed() {
                callback()
            }
        }
 	)
}

// How To Use it : 

class ExampleFragment : Fragment() {
  
   override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
		    requireActivity().onBackPressed {        
		  // do what do you want when get back 
		}
  }
}