Create dialogs

CreateDialog.kt

fun createBasicAlertDialog(){
    val builder = AlertDialog.Builder(this)
    builder.setTitle("[DIALOG TITLE]")
    builder.setMessage("[DIALOG MESSAGE]")
    builder.setPositiveButton("[YES TEXT]") { dialog, which ->

        // Action on click yes
    }
    builder.setCancelable(false)
    builder.show()
}

fun createAlertDialog(){
    // instantiate dialog
    val builder = AlertDialog.Builder(this)

    // instantiate the view for the dialog
    val viewInflated = layoutInflater.inflate(R.layout.dialog_signin, null)

    // inflate the view in the dialog
    builder.setView(viewInflated)

    // set the dialog title
    builder.setTitle("Title")

    // Set up the buttons
    builder.setPositiveButton("Go",
        DialogInterface.OnClickListener { dialog, which ->

            // do function here

            // get the input text from the view and do as you need with it
            val username = viewInflated.findViewById(R.id.username) as EditText
            val password = viewInflated.findViewById(R.id.password) as EditText

            println(username)
            println(password)

            // dismiss dialog after
            dialog.dismiss()
        })
    builder.setNegativeButton("Cancel",
        DialogInterface.OnClickListener { dialog, which ->
            dialog.cancel()
        })

    builder.setCancelable(true) // can be set to false, to make the dialog undismissable
    builder.show()
}

fun createBasicDialog(){
    val dialog = Dialog(this)
    dialog.setContentView(R.layout.dialog_signin)
    
    // USEFUL DIALOG PROPERTIES
    // dialog.requestWindowFeature(Window.FEATURE_NO_TITLE)
    // dialog.setCancelable(false)
    // dialog.window!!.setBackgroundDrawableResource(android.R.color.transparent)
    
    dialog.show()
}

fun createMultiOptionDialog(){
    val options = arrayOf("[FIRST OPTION TITLE]", "[SECOND OPTION TITLE]")
    val builder = AlertDialog.Builder(this)
    builder.setTitle("[DIALOG TITLE]")
    builder.setItems(options){ _, which ->

        if(which == 0){
            //first option clicked, do this...

        }else if(which == 1){
            //second option clicked, do this...
            
        }
    }
    builder.show()
}

dialog_signin.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <EditText
        android:id="@+id/username"
        android:inputType="textEmailAddress"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:layout_marginLeft="4dp"
        android:layout_marginRight="4dp"
        android:layout_marginBottom="4dp"
        android:hint="username" />
    <EditText
        android:id="@+id/password"
        android:inputType="textPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="4dp"
        android:layout_marginLeft="4dp"
        android:layout_marginRight="4dp"
        android:layout_marginBottom="16dp"
        android:fontFamily="sans-serif"
        android:hint="password"/>
</LinearLayout>